South Georgia Minerals Program: Savannah area [Aug. 1968]

Project R'eport No. 10 South Georgia Minerals Program
Georgia State Division Of Conservation Department of Mines, Mining and Geology
A. S. Furcron, Director SAVANNAB AREA
By Mineral Engineering Branch, Engineering Experiment Station
Georgia Institute of Technology, and Georgia Department of Mines, Mining, and Geology
SAVANNAH AREA
This program is being carried out under contract as Project A-880-004 of the Georgia Institute of Technology,
Atlanta, Georgia

:l
'
f

Project Report No. 10 Savannah Area
South Qeorgia Minerals Program
Georgia State Division of Conservation Department of Mines, Mining and Geology
A. S. Furcron, Director
by Mineral Engineering Branch, Engineering Experiment Station
Georgia Institute of Technology and Georgia Department of Mines, Mining and Geology
August 1968
This program is being carried out under contract as Project A-880-004 of the Georgia. Institute of Technology,
Atlanta, Georgia

iii

TABLE OF CONTENTS

LIST OF TABLES . , LIST OF FIGU\\ES

.' .
. . .

INTRODUCTION .
. .. OBJECTIVE AND SCOPE

PROCEDURE

BRYAN COUNTY

Summary of Results

CHATHAM COUNTY . . . .

Summary of Results

EFFINGHAM COUNTY , .

Summary of ~esults

SCREVEN COUN~Y . . .

Summary of R~sults

, ...
. .

Page
iv
. , . . . vi
1
...' .. 3
. 3
.. 5
6
15 16
37 38
49 50

iv

LIST OF TABLES Page

BRY-1. BPL DETERMINATION ON CORES - BRYAN COUNTY . . . . .

9

BRY-2. CHEMICAL COMPOSITION OF PROCESSED SANDS (-35+150 Mesh Fraction) -

BRYAN COUNTY . . . . . . . . . .

, . . . .

, 11

BRY-3. PARTICLE SIZE OF CORE MATERIAL-WEIGHT (%) DISTRIBUTION -

BRYAN COUNTY . . . . . . . . , , .

. . . . .

12

BRY-4. VISUAL AND MICROSCOPIC OBSERVATIONS OF SANDS (35X150 Mesh) -

BRYAN COUNTY . . . . .

. . . 13

CH-1. BPL DETERMINATION ON CORES - CHATHAM COUNTY

. . . . 24

CH-2. CHEMICAL COMPOSITION OF PROCESSED SANDS (-35+150 Mesh Fraction)

CHATHAM COUNTY . . . . . .

. . . . . . . . .

27

CH-3. PARTICLE SIZE OF CORE MATERIAL -WEIGHT (%) DISTRIBUTION -

CHATHAM COUNTY . . . . . . . . . . . . . . 28

CH-4. VISUAL AND MICROSCOPIC OBSERVATIONS OF SAND (35X150 Mesh) -

CHATHAM COUNTY . . . . . . . . . . . . . . . .

. 29

CH-5. QUALITY OF SANDS (35 X 150 Mesh) - CHATHAM COUNTY .

. 32

CH-6. X-RAY DIFFRACTION OF CLAYS (-325 Mesh) - CHATHAM COUNTY .

33

CH-7. X-RAY DIFFRACTION OF PHOSPHATE FLOTATION CONCENTRATES-

CHATHAM COUNTY .

34

CH-8. MATRIX BENEFICIATION RESULTS - CHATHAM COUNTY

35

CH-9. ECONOMIC FACTORS - FIGURES OF MERIT - CHATHAM COUNTY

. 36

EF-1. BPL DETERMINATION ON CORES - EFFINGHAM COUNTY . . .

. 42

EF-2. CHEMICAL COMPOSITION OF PROCESSED SANDS (-35+150 Mesh Fraction)-

EFFINGHAM COUNTY . . . . . . . .

. . . . . . . . . . . . 44

v

LIST OF TABLES (Continued) Page

EF-3. EF-4.
EF-6. SC-1. SC-2. SC-3. SC-4. SC-5. SC-6.

PARTICLE SIZE OF CORE MATERIAL-WEIGHT (%) DISTRIBUTION -

EFFINGHAM COUNTY . . . , . . . . .

VISUAL AND MICROSCOPIC OBSERVATIONS OF SANDS (35X150 Mesh) -

EFFINGHAM COUNTY . , . . . . . . . . . . , .

46

. . . ~UALITY OF SANDS (35X150 Mesh) - EFFINGHAM COUNTY

. 47

X-RAY DIFFRACTION OF CLAYS (-325 Mesh) - EFFINGHAM COUNTY , 48

BPL DETERMINATION ON CORES - SCREVEN COUNTY , . . . . . ,

. 58

CHEMICAL COMPOSITION OF PROCESSED SANDS (-35+150 Mesh Fraction) -

SCREVEN COUNTY . . . . . . . . .

. . . . . . . . . . . . 63

PARTICLE SIZE OF CORE MATERIAL-WEIGHT (%) DISTRIBUTION -

SCREVEN COUNTY . . . . . . . . . .

64

VISUAL AND MICROSCOPIC OBSERVATIONS OF SANDS (35X150 Mesh) -

SCREVEN COUNTY . . . . . . . . . . . . . . .

66

~UALITY OF SANDS (35X150 Mesh) - SCREVEN COUNTY .

. . 71

X-RAY DIFFRACTION OF CLAYS (-325 Mesh) - SCREVEN COUNTY . 72

vi

LIST OF FIGURES

Page

1. INDEX MAP OF PROGRAM AREA .

2

2. LEGEND FOR LITHOLOGIC LOGS

4

BRY- l. LOCATION OF HOLES - BRYAN COUNTY BRY- 2. LITHOLOGIC LOGS - BRYAN COUNTY CH - 1. LOCATION OF HOLES - CHATHAM COUNTY CH - 2. LITHOLOGIC LOGS - CHATHAM COUNTY . .

7
8
18
. . . . . . . . 19

CH - 3. ELECTRIC AND GAMMA-RAY LOGS - CHATHAM COUNTY

21

EF - l. LOCATION OF HOLES - EFFINGHAM COUNTY EF - 2. LITHOLOGIC LOGS - EFFINGHAM COUNTY .
EF - 3. ELECTRIC AND GAMMA-RAY LOGS - EFFINGHAM COUNTY sc - 1. LOCATION OF HOLES - SCREVEN COUNTY sc - 2. LITHOLOGIC LOGS - SCREVEN COUNTY . sc - 3. ELECTRIC AND GAMMA-RAY LOGS - SCREVEN COUNTY

39
40 . . 41
51
52
54

l
llfTRODUCTION
Nine project reports have been issued on this program which was initiated July 1, 1965. All information is published and released as progress reports as soon as feasible. Most of the reports have therefore been primarily factual in nature. An exception was Project Report
No. 7, which was a contribution of the U. S. Geological Survey. Emphasis in reports number 2, 3, 4, 5, and 9 was on phosphorite.
Report No. 6 was on heavy minerals and phosphorite, while Report No. 8
was on heavy minerals.
Project Report No. 9 included data from five wells drilled in Chatham
County. Pending laboratory results and engineering evaluation, drilling
operations were moved to other areas. The data shown in Report No. 9,
and definite industrial interest,dictated the need for additional drilling in the Savannah area. This report, Project Report No. 10, presents data from this second phase program.
Figure l shows the locations of holes drilled to date. While this shows a number of as yet unreported holes in Berrien, Brooks, Clinch, Lowndes, and Thomas Counties, data from these will be reported in another report in order to focus attention at this time on the Savannah area.
Current and near future drilling will have emphasis directed towards heavy minerals, high alumina clays, fullers earth, and limestone deposits. Drilling for heavy minerals is progressing rapidly along coastal Georgia. Drilling for the other minerals will be in the southvrestern area of the state.

2

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3
OBJECTIVE AND SCOPE The objective of the South Georgia Mineral Program is to determine the existence, preliminary quality-quantity data, and approximate location of mineral deposits having economic feasibility potential for establishing new, or expanded, mineral industries in Georgia. This report, Project Report Number 10, includes data from cores obtained from drilling in Screven, Bryan, Effingham, and Chatham Counties. The data for the latter two counties was to supplement earlier drilling reported
for Effingham County in Report Number 6 and for Chatham County in Report Number 9.
PROCEDURE There were no changes in project procedures not shown in earlier reports with the exception that qualitative x-ray diffraction analysis was made on phosphorite concentrates of Chatham County, reported in
Progress Report No. 9. Qualitative x-ray diffraction of "clays" (minus 325
mesh) of selected portions of cores for all counties of this report was made.

4
LEGEND
1:::::;;:,:':,:\}/;,:~;:~\::i/J SAND
E=-=-=-:-=-:--=-=-~ CLAY (:ft,:~Y?;f~ SANDY CLAY
~~~~ CALCAREOUS SAND
~~ CALCAREOUS CLAY ~~ CALCAREOUS SANDY CLAY
l#f#f!:::::::: :f LIMESTONE
II I ~ 4. -1 ,6 CARBONACEOUS MATERIAL
Figure 2. Legend for Lithologic Logs

5
BRYAN COUNTY

6
BRYAN COUNTY SUMMARY OF RESULTS
Two holes were cored in Bryan County, one from near Pembroke and the other from south of Richmond Hill. Phosphorite
Phosphorite of economic potential was not found in either of the two holes. A five foot zone of 17 percent BPL was found at a depth of 200-205 feet in Bryan Number 2 hole. All phosphorite was of the "Florida" type. Glass Sand
Potential glass sand deposits were found in both wells. The sands of Bryan Number l merit special attention due to the thickness of the deposit, although it is overlaid by 15 feet of overburden. Heavy Minerals
Three zones \'/"ere found in Bryan Number l: 150 to 165 feet, 235 to 240 feet, and 290 to 295 feet. None appear economic. Bryan Number 2 shows about 0.5 percent Ti02 in the top 15 feet, and 0.8 percent 0.1 Ti02 from 15 to 60 feet. A layer at 80 to 85 feet also shows Ti02 .

. -
.-. #
j

I 0

2 3

SCALE IN MILES

BRYAN COUNTY
GEORGIA

Figure BRY-1. Location of Holes - Bryan County

8

20-

220

40

60

....

U.l

80

U.l

La..

z

100

120

140

~~r?~:

160 \ll!ii!~-----1

160

180~ 180

Figure BRY-2. Lithologic Logs - Bryan County

9

Hole No.
Bry-1

TABLE BRY-1 BPL DETERMINATION ON CORES
Bryan County

Surface Elevation (Sea Level)
Feet
102.0

Depth
-Feet
0-5 5-10 10-15 15-30 30-45 45-60 60-75 75-90 90-105 105-120 120-125 125-130 130-135 135-140 140-145 145-150 150-155 155-160 160-165 165-170 170-175 175-180 180-185 185-190 190-195 195-200 200-205 205-210 210-215 215-220 220-225 225-230 230-235 235-240 240-245 245-250 250-255 255-260 260-265 265-270 270-275
(Continued)

Core Recovi

Feet

o

w.s.

w. s.

w.s.

2

13

10

67

w. s. w. s. w. s. w. s. w.s. w.s. w. s. w.s. w.s. w.s. w.s. w.s. w.s. w.s. w.s. w.s. w.s. w.s. w.s. w.s. w. s. w.s. w.s. w. s. w.s. w.s. w.s. w.s. w. s. w.s. w.s. w.s. w. s. w. s. w.s.

BPL
%
o.oo o.oo o.oo o.oo o.oo
o.oo o.oo o.oo o.oo
0.88 0.74 0.78 0.74 0.88 0.78 0.61 0.78 2.90 2.02 3.10 2.93 3.34 3.78 3.47 3.54 4.05 5.73 6.74 10.96 7.42 2.07 2.87 2.60 3.03 4.72 4.18 6.54 5.46 3.07 3.37

10

Hole No.
Bry-1

TABLE BRY-1 (Continued) BPL DETERMINATION ON CORES
Bryan County

Surface Elevation (Sea Level)
Feet
102.0

Depth Feet
275-280 280-285 285-290 290-295 295-300

Core Recovery

BPL

Feet

_L

~

w.s.

4.42

w.s.

3-74

w.s.

3.81

w.s.

4.65

w.s.

4.38

Bry-2

15 .o

0-15

w.s.

0.17

15-30

1

20

0.20

30-45

3

60

2.02

45-60

3

60

2.06

60-75

3

60

1.35

75-80

5

100

1.52

80-85

5

100

1.75

85-90

5

100

1.38

90-105

105-120

13

87

2.02

120-125

w.s.

1.48

125-130

H.S.

0.'+7

130-135

w.s.

135-140

w.s.

140-145

w.s.

145-150

w.s.

150-155

w.s.

155-160

w.s.

160-165

w. s.

165-170

w.s.

170-175

w.s.

175-180

w.s.

180-185

w.s.

185-190

w.s.

190-195

w.s.

195-200

w.s.

200-205

w. s.

0.81
1.79 1.69 1.82
2.33 2.39 3.20 4.45 4.28
5.12 5.06 5.06 6.88
6.34 17.10

205-210

w. s.

7.32

Hole No. Bry-1
Bry-2

11

TABLE BRY-2 CHEMICAL COMPOSITION OF PROCESSED SANDS
-35+150 MESH FRACTION (Results are in weight percent)

Layer

Depth,

Loss on

Feet

Ignition

From To

(LOI) Si02 ~2.25 Fe~3 ~~3 CaO MgO

15 30 0.03 99.56 .00 .03 0.00

0 .ooo

30 45 0.09 98.02 . 00 .08 0.13

0 .000

15 30 30 45 45 60

0.11 96.62 .00 .13 0.35 0.37 88.02 .68 .56 3.54 0.72 87.34 .94 .94 2.96

.03 .000 .66 .013 .69 .014

12

Hole No. Bry-1
Bry-2

TABLE BRY-3 PARTICLE SIZE OF CORE MATERIAL
WEIGHT (%) DISTRIBUTION
Bryan County

Layer Depth,
Feet From To
15 30
30 45
15 30
30 45
45 60

~
6.4 44.4
9.0 0.7 8.0

-35 +150 65.7 40.6
59.7 86.8 61.1

Core -150 +325 12.5
2.9
11.0 4.8
17.7

-325 15.4
12.1
20.3 7.7 13.2

TABLE BRY-4
BRYAN COUNTY
VISUAL AND MICROSCOPIC OBSERVATIONS OF SANDS (35Xl50 MESH)
Note: Color abbreviations are: Br =brown, Cr = cream, Lt = light, Or = orange, Wh =white
Y = yellow

Hole No. Bry-l

Layer Depth

(Feet)

From

-To

15

45

15

30

30

45

Bry-2

15

60

15

30

30

45

45

60

+150 mesh Sands in Core Weighted Average
Percent 78.6
75.1

Observations of -35+150 Mesh Fraction

Visual Color

Microscopic

White

Mostly clear. Some white Muscovite. Heavy minerals.

Mostly clear. Some colored white, red. Phosphorite?

White to dark grey

Mostly clear. Some sand colored white, grey. Some coated with iron oxide. Muscovite. Phosphorite. Organic material.

Mostly clear. Some colored white, grey, green, red. Muscovite. Phosphorite.

Mostly clear. Some colored white, grey, green, red. Some sand coated with clay. Muscovite. Phosphorite.

wt--'

14

TABLE BRY-5 BRYAN COUNTY QUALITY OF SANDS (35 X 150 MESH)

Well No.
Bry-l Bry-2
Bry-3

Layer Depth
~Feet)
15 - 45 15(3,4)_ 30 30 - 6o( 5 )

%+150
Mesh Sands in core
78.6
68.7

Meets Approx. Chem. Specifications for
Qualitl Number *

1(2)
'

2

7

Uniformity (2)

Chemical Size

F

p

G

G

(l) G = good; F = fair; P ~ poor
(2) Fe2o3 content somewhat higher for quality no. (3) Note overburden to be removed.
(4) High loss on ignition - probably due to clay and organic matter.
(5) Too low silica content for glass sand use - probably suitable if strongly scrubbed and '..rashed.
* Specifications are given and discussed on page 28, Project Report Number
6. Quality numbers and potential use are: l =optical; 2 =Flint, glass
and tableware; 3 = flint; 4 & 5 = Sheet, rolled, polished plate and window; 6 = green containers; 7 = Green glass; 8 & 9 = Amber glass.

15
CHATHAM COUNTY

16
CHATHAM COUNTY SUMMARY OF RESULTS
Four new holes were cored in Chatham County. These holes were directed at finding the limits of the ore body previously found and its structural relationship to the area. The ore body, described in Project Report No. 9, has phosphorite similar in character to the North Carolina deposits. The top of the uppermost and only matrix, currently economic, is gently undulated with dips of 2 to 9 feet per mile south Southwestward. It also appears to pinch out westward as only an eight to ten inch thickness was found in hole Number 9 at a depth of 117-119 feet, and none was found in Bryan County at depths drilled (300 feet and 210 feet). In the direction of Effingham County (northwestward) there appears to be a dissemination of phosphorite as there are no zones of economic concentration in Ch-6 or Ch-7, but the phosphorite present is similar in appearance to Ch-8. The way the phosphorite in Ch-6 is associated with quartz sand indicates reworking of the material.
Beneficiation procedures were described in Project Report No. 9. The +4 mesh portion of Chatham No. 8 consisted of tan nodules as well as the normal black Chatham phosphorite. X-ray diffraction analyses of phosphorite concentrates reported in Project Report No. 9 show that the concentrates consist essentially of fluorapatite with traces of hydroxylapatite. The variable amount of quartz present in these concentrates depends on the efficiency of the particular flotation test through which the concentrates were obtained.

17
Glass Sands
Sands from Chatham 6 and Chatham 7 are of sufficient thickness and
quality to be considered as potential sources for glass sands. Sands from the other holes were considered to be of interest if beneficiation proved to be commercially feasible. Heavy Minerals
Chatham 6 presents two zones with Ti02 , none of which exceeds 0.5%
Ti02 . The zones are 0-34 feet and 85-170 feet.
Chatham 7 has some Ti02 in a 5 foot layer at the surface, and two
areas, 135 to 145 feet and 155 to 175 feet, neither of which is of commercial interest.
Clays from Chatham County have montmorillonite and attapulgite as major components, and therefore, are potential material for Fuller's earths. It should be noted that dolomite is present along with some clay minerals in Chatham 8.

18
ATLANTIC OCEAN

-I 0 I 2 3
SCALE IN MILES

CHATHAM COUNTY GEORGIA

Figure CH-1. Location of Holes - Chatham County.

19 Ch.8

.200

20

40

60

60

--:-:-:-=-
1 - -- - - 1 - - - - - 80

160

160

Figure CH-2. Lithologic Logs - Chatham County.

20 0

20

~----- -

40

60

80 100

120

i40

140

160

160

L_.L_ _ 180

_.l_ _L__ _......L_ ___..L_ _ _.J..___ 180 _,__ _ _...____.

Figure CH-2. Lithologic Logs - Chatham County (Cont.)

21

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------- -

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~

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-------
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=
-

==- -1-

r--

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--=!=-

- NESISTfVITY 25 OHMS

-------

r--

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10 1- -

20

I=
30

r--

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10 = =
20 30

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40 50

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60 70
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100
rr---- 110
120
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i = 210
220

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60

70

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,'-_-_-_-_-_-.; 140

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It!=== -= 170

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- " - 210 -~ 220

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250
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r-- 270
1-
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-------r--- -
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290

r-----

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= ;_\E ------- 300

-

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;C= ~ ------.. -
--
1-= t"= ------- =~
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240 250 260 270
2eO
290 300

~ i="

------- I=

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-------- r--r--

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---------------1----= - ------- 1-------

- I= I=I

Figure CH-3. Electric and Gamma-Ray Logs - Chatham County Hole Ch- 6

(\) (\)

=t=- -1--- c'HATHAM '7 GAMMA SCALE .0_05 ~

-
.
----T

. f-..
FJ
- :-:::::::


---
1-
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10 20 30 I 40 50 60
'
ro
80 90 100 110 I
i=
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t ~

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80 f--1

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100 f - -

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t--- 120

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RESISTIVITY_ l5 OHMS

'
I<-
+ j

1- =F-

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f--

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b\=

130 -
140 Ic-+-

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150 '

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160 I'-.

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1--190
E:=f

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Figure CH-3. Electric and Gamma - Ray Logs - Chatham County Hole Ch-7

h ' C ATHAM 19

' 1

I

GAMMA SCALE .005

:
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I

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1'E-
;=

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1I-=1=-=,=---~ f= '-\:-iI:- = - rr=== f----1-----

70

:

1;::::::. -

--F: =F

_,_ 70

I = - - 80 I I I _ L1_--Hl _ _Ic_-=-1 I_ --I_ i _ - - 1 L_ --I 80

90 ----;I
100
-
110 ===

-- \l-==t+=='1-=-

-1-

'
'--

= 90

-

I=

I

-1-- I

-

100

~ -= 1\ 1- -I===!== E::.::

I ::IF\- -1I tz

1=:1
::t --l

:: tI=ll ~l 110

120

:

120

130

130

-

RESISTIVITY 50 OHMS

!

-7 - 1-

-I -I

-

Figure CH-3. Electric and Gamma-Ray Logs - Chatham County Hole Ch-9

1\)
w

24

TABLE CH-l BPL DETERMINATION ON CORES
Chatham County

Surface

Elevation

Hole

(Sea Level)

No.

Feet

Ch-6

17.0 *

Depth Feet

Core Recovery

BPL

Feet

_L

12

0-5

w. s.

0 . 00

5-10

w.s.

0 . 00

10-15

w.s.

0.00

15-30

5

33

0.00

30-34 34-41

5

100

5

71

0.34
o.oo

41-45

3

75

0.88

45-48

2.2

73

0.91

48-53

3.8

76

1.08

53-75

75-85

5

50

1.52

85-90

4. 5

90

0.47

90-100

5

50

6.41

100-105

4

80

3.30

105-110

l

20

2.39

110-120

5

50

1.18

120-125

w.s.

2.50

125-130

W. S.

2.39

130-135

H. S.

2.53

135-140

w.s.

2.83

140-145

w.s.

2.97

145-150

W. S.

3.27

150-155

w. s.

2.87

155-160

W. S.

3.40

160-165

w.s.

5.19

165-170

w.s.

4.25

170-175

w. s.

6.68

175-180

w. s.

7.25

180-185

w.s.

5.23

185-190

w. s.

5.40

190-195

w.s.

6.84

195-200

w. s.

4.05

200-205

w.s.

3.91

205-210

w.s.

4.25

210-215

w.s.

2.93

215-220

w.s.

3.14

220-225

w.s.

4.69

225-230

w.s.

2.60

230-235

w.s.

3.98

235-240

w.s.

3.74

240-245

w.s.

4.11

Continued

TABLE CH-l (Continued) BPL DETERMINATION ON CORES
Chatham County

Hole No .

Surface Elevation (Sea Level)
Feet

Ch-6

17.0 *

* Determined at drilling site

Depth Feet
245-250 250-255 255-260 260-265 265-270 270-275 275-280 280-285 285-290 290-295 295-300

Core Recover~

Feet

!>

w.s. w.s.
W. S.
w.s. w.s. w.s. w.s. w.s. w. s. w.s. w.s.

Ch-7

21.7 *

0-5

5

100

5-10

5

100

10-15

5

100

15-30

2

13

30-45

2

13

45-120

120-125

w.s.

125-130

w.s.

130-135

w.s.

135-140

w.s.

140-145

w. s.

145-150

w. s.

150-155

w.s.

155-160

w. s.

160-165

w.s.

165-170

w.s .

170-175

w.s.

175-180

w.s.

180-185

w.s.

185-190

w. s.

190-195

w.s.

(Continued)

25
BPL
_j_
3.88 4 . 05 3 . 07 5 . 94 2 . 53 3.84 3.37 1.58 0.91 1.35 0 . 78
0.00
o.oo
0.00 0.00 0.67 1.28 0.74 0.61 0.74 1.35 1.69 l.Ol 1.35 2.02 2.02 4.72 3.37 3.71 4.65 6.81 7-25

26

TABLE CH-l (Continued) BPL DETERMINATION ON CORES
Chatham County

Hole No.
Ch-8

Surface Elevation (Sea Level)
Feet
5.2 *

Depth Feet
0-5 5-10 10-15 15-30 30-45 45-60 60-65 65-69 69-72 72-78 78-80 80-85 85-90 90-97 97-102 102-107 107-114 114-122 122-125 125-130 130-135 135-140 140-145 145-150

Ch-9

12.5 *

15-30 30-47 47-52 52-72
72-77 77-86 86-92 92-103 103-lll lll-122
122-129

* Determined at drilling site.

Core Recover

Feet

a

w.s.

w.s.

w.s.

w.s.

w.s.

8

53

3

60

l

25

4

100

6

100

2

100

5

100

5

71

5

100

3

43

7

88

w.s.

w.s.

w.s.

w.s.

w.s.

w.s.

ll.2

75

8.5

50

6.3

100

10

100

4.3

86

13.6

100

10.3

100

15

100

ll.9

100

11.7

100

ll

100

BPL
_j_
0.24 0.44 0.07 0.30 0.13 0.20 0.54 0.84 7.45 19.96 10.86
27.96 14.47
3.03
3.41 3.78 4.55 11.90 3.00 2.02 1.52 1.52
0.61 0.74 0.84 0.77 0.88 1.38 2.19 3.71 0.67 4.85 4.38

27
TABLE CH-2 CHEMICAL COMPOSITION OF PROCESSED SANDS
-35+150 MESH FRACTION (Results are in weight percent)

Layer

Depth,

Loss on

Hole

Feet

Ignition

No.

-From- -To

(LOI) Si02 R2.25 Fe2..Q3 Al~3 CaO MgO

Ch-6

15 30

0.01 93.98 .oo .09 0.28 0

.002

45 48

0.32 86.56 .28 .50 3.80 .38 .023

48 53

0.48 84.84 .08 .51 4.31 .48 .041

Ch-7

0 5

0. 06 99.90 .00 .08 0.00 0

.ooo

5 15

0.17 98.34 .00 .14 0.34

.01 .002

15 30

0.13 89.42 .oo .19 3.66 .23 .007

Ch-9

30 52

0.32 92.66 .38 .21 2.44 .. 41 .017

52 72

0.34 88.84 . 32 .26 3.15

.44 .025

28
Hole
No.
Ch-6 Ch-7
Ch-8 Ch-9

TABLE CH-3 PARTICLE SIZE OF CORE MATERIAL
WEIGHT (%) DISTRIBUTION
Chatham County

Layer Depth, Feet From To
15 30
45 48
48 53

~
48.4
29.0
0.4

Matrix

-35

-150

+150 +325

33.7

7.7

29.2 26.7

60.1 23.4

-325 10.2
15.1 16.1

0 5 5 10 10 15 15 30
60 65 65 69

24.2 45.3

6.7

23.8

27.2 50.9

6.4

15.5

24.7 59.4

8.7

7.2

12.0 57.3 16.9

13.8

28.6 29.5

6. 7

35.2

35.3 40.4

7.8

16.5

30 47 47 52 52 72

2.6

22.9

23.8

8.2 21.9 41.1

28.8

20.9 30.4 30.2

18.5


TABLE CH-4
CHATHAM COUNTY VISUAL AND MICROSCOPIC OBSERVATIONS OF SANDS (35Xl50 MESH) Note: Color abbreviations are: Br = brown, Cr = cream, Lt = light, Or = orange, Wh =white, Y = yellow

Hole No. Ch-6

Layer Depth

(Feet)

- Fro- m -T-o

15

30

45

53

15

30

45

48

48

53

Ch-7

0

30

0

5

+150 mesh Sands in Core Weighted Average
Percent 82.1 59.5
73.3

Observations of -35+150 Mesh Fraction

Visual Color White

Microscopic

Light grey

Mostly clear. Some sand colored white and some coated with iron oxide. Muscovite. Heavy minerals.

Mostly clear. Some colored yellow, grey, green, white. Muscovite. Heavy minerals.

Mostly clear. Some colored white, green, grey. Muscovite. Heavy minerals. Phosphorite.

Cream to white to light grey

Mostly clear. Some colored yellow. Some coated with iron oxide. Clay balls. Muscovite. Heavy minerals.

i\.;

w
0
TABLE CH-4 (Continued)
CHATHAM COUNTY
VISUAL AND MICROSCOPIC OBSERVATIONS OF SANDS (35Xl50 MESH)
Note: Color abbreviations are: Br =brown, Cr = ere~, Lt = light, Or = orange, Wh =white, Y = yellow

Hole No. Ch-7

Layer Depth

(Feet)

From

To

10

15

+150 mesh Sands in Core Weighted Average
Percent

15

30

Ch-8

60

69

65.9

60

65

Ch-9

65

69

30

72

30

47

49.1

Observations of -35+150 Mesh Fraction

Visual Color

Microscopic

Mostly clear. Some colored white. Some coated with iron oxide. Muscovite. Heavy minerals. Organic materials.

Mostly clear. Some colored green, grey, white. Muscovite. Heavy minerals.

Light grey

Mostly clear. Some light brown opaque, white semi-transparent. Phosphorite.

Mostly clear. Small amounts of black phosphorite.

Light grey to grey

Mostly clear. Some colored white, grey, green. Muscovite. Phosphorite. Heavy minerals.

(Continued)

TABLE CH-4 (Continued)
CHATHAM COUNTY
VISUAL AND MICROSCOPIC OBSERVATIONS OF SANDS (35Xl50 MESH)
Note: Color abbreviations are: Br = brown, Cr = cream, Lt = light, Or = orange, Wh =white, Y = yellow

Hole No. Ch-9

Layer Depth (Feet)
From To

47

52

+150 mesh Sands in Core Weighted Average
Percent

52

72

Observations of -35+150 Mesh Fraction

Visual Color

Microscopic

Mostly clear. Some colored white, grey, red. Muscovite. Biotite. Phosphorite.

Mostly clear. Some colored white, red, green. Muscovite. Phosphorite.

w
I-'

32

Well
No.
Ch-6 Ch-7

TABLE CH-5 CHATHAM COUNTY QUALITY OF SANDS (35 X 150 MESH)

%+150

Layer Depth Mesh Sands

{Feet)

in core

15 (2 ) - 30

82.1

0 - 15 15 - 30

56.4 69.3

Meets Approx. Chem. Specifications for
Qualit;y: Number *
2(3)
1, 6(4) 7

Uniformity (1) Chemical Size

G

G

p

G

G

G

(1) G = good; F = fair; P = poor
(2) Note overburden to be removed
(3) Si02 may be somewhat low (4) Lower layer 5-15 feet
* Specifications are given and discussed on page 28, Project Report Number
6. Quality numbers and potential use are: 1 = optical; 2 = Flint, glass and tableware; 3 = flint; 4 & 5 = Sheet, rolled, polished plate and window;
6 = green containers; 7 = Green glass; 8 & 9 =Amber glass.

Hole No. Ch-6
Ch-7 Ch-8
Ch-9

33

TABLE CH-6

X-RAY DIFFRACTION OF CLAYS (-325 MESH)

Layer Depth (Feet)

Description

41-45

Mostly montmorillonite and illite, some kaolinite. Possible mixed layer montmorillonite-illite. Trace of attapulgite.

105-110

Mostly montmorillonite and dolomite. Some quartz and illite. Some a.ttapulgite.

110-120

Mostly dolomite. Some montmorillonite and illite and attapulgite.

30-45

Mostly montmorillonite and illite. Could possibly be a mixed la.yer mineral of
60:40 montmorillonite-illite. Trace of kaolin and quartz, more attapulgite.

85-90 95-97 107-114 114-122

Mostly montmorillonite and kaolinite. Some il.lite and quartz. Some attapulgite.
Dolomite. Trace of illite. Some attapulgite.
Mostly dolomite and attapulgite. Trace of quartz, and illite.
Illite, and attapulgite. Slight trace of dolomite.

15-30 122-129

Mostly montmorillonite and kaolinite. Some illite. Some attapulgite.
Mostly montmorillonite-chlorite, montmorillonite. Some illite and quartz. Small amount of attapulgite.

34

Hole No. Ch-l Ch-l Ch-l Ch-l Ch-l -Ch-1; Ch-2 Ch-2 Ch-2 Ch-2 Ch-3 Ch-3 Ch-4 Ch-5

TABLE CH-7

X-RAY DIFFRACTION OF PHOSPHATE FLOTATION CONCENTRATES

Layer Depth (Feet)

Test No.

Description

60-70

l

Mostly~luiopatite, large amounts of quartz; and trace of hydroxylapatite.

60-70

2

Mostly fluorpatite, some quartz, and trace of hydroxylapatite.

117-122

l

Mostly fluorapatite, some quartz, and trace of hydroxylapatite.

117-122

lR

Mostly fluorapatite, some quartz, and trace of hydroxylapatite.

132-142

lR

Mostly flu'orapati te, some quartz, and trace of hydroxylapatite.

152-160

2

Mostly fluorapatite, some quartz, and trace of hydroxylapatite.

105-llO

lR

Mostly _fluorapatite, large amounts of quartz.

115-120

l

Mostly fluorapatite, trace of quartz, and trace of hydroxylapatite.

125'-150

l

Mostly fluorapatite, trace of quartz, and trace of hydroxylapatite.

155-160

2

Mostly flu.orapaptite, trace of quartz, and trace of hydroxylapatite.

83-90

3

Mostly fluorapatite, trace of quartz, and trace of hydroxylapatite.

93-108

l

Mostly fluorapatite, large amounts of quartz, trace of hydroxylapatite.

82-97

3

Mostly fluorapatite, trace of quartz, and trace of hydroxylapatite.

98-101

l

Mostly fluorapatite, trace of quartz, trace of hydroxylapatite.

TABLE CH-8 MATRIX BENEFICIATION RESULTS
Chatham County

Feed +4 4x8 8Xl6
HOLE NO. Ch-8 Surface Elevation =

Total matrix footage

26

Dry Density lb/cu ft

87.45

Percent dry weight

100.0 1.43 l. 77 8.67

Percent BPL

24.35 41.00 33.18 24.95

Percent acid insol

56.64 18.70 45.52 61.42

Percent Fe2o3 Percent Al2o3
Percent CaO

.79 .54 .69 2.70 l.ll 2.12 20.15 38.13 25.54

.39 l.ll 17.84

(Flot. feed) l6Xl50

l6X35

(sea level)

(Slime) 35Xl50 -150

Concentrates

Matrix Interval = 69-95

Fatty Acid Tailing

Amine Float

57.70 26.50 60.30
.26 1.23 18.54

10.79 14.23 77.66
.17 l.l4 9.79

46.91 29.30 55.76
.27 1.28 20.64

30.44 18.81 50.76
1.93 6.05 22.70

31.85 66.43
1.62 .47 .47
51.77

56.32 3.68
94.05 .09
l.ll 1.75

ll.83 24.52 63.94
.46 1.88 16.79

Note: Tan phosphorite nodules were observed in the +4 portion of pebble, together with the normal black Chatham phosphorite.

w
V1

TABLE CH-9

w
"'

ECONONIC FACTORS - FIGURES OF MERIT

Chatham County

Matrix No.: Matrix Interval, Ft.:

ITEM

UNIT (M=10CO)

Ch-8 First
69-95

HOLE NO.

ECONOMI C FACTORS
* Overburden,
Overburden,
*Matrix, Matrix,
* BPL in Matrix , BPL in Matrix,
* Overburden/Matrix, Wash-Screen Products
+16 Mesh -16+150 -150 (Loss)
* Flotation Concentrate Product
Total UsefUl Products*
BPL Recovery
+16 Mesh
* -16+150 (Flot. Cone.),
-16+150 (Flot. Cone.),
* Total
* Recov~red from Matrix
* Overburden/Products * Matrix/Products
* I+A in Flot. Cone.

ft MT/Ac
ft M:r/Ac
'1o MT/Ac Ratio
M:r/Ac M:r/ Ac MT/Ac MT/Ac MT/Ac
W/Ac
'1, BPL
MT/Ac MT/Ac
i
cu yd/T cu yd/T
'1o

69. 00 135-2
26.00 49.5 24. 35 12.1
2. 65
5-9 28 . 6 15.1
9-l 15.0
1.7 66 .4
6 .0
7-7 63. 83
7.7 2. 80
. 94

FIGURES OF MERIT
Olerburden Matrix BPL in Matrix BPL in Flot. Conc. (l) BPL in Flot. Conc. (2) Overburden/ Matrix Overburden/ Products I+A in Flot. Cone. Products Recovery BPL (+150) Recovery Matrix/Products

~
ft ft
i
'1o
%
Ratio cu yd/T
i
T/Ac-ft
'1o cu yd/T

Econ. Level
88 max 3 min 10 min 66 min 52 min 2 max 17.5 max 5 max 400min 63 min 6 max

1. 28
8. 67
2. 44 1. 01 1. 28
.75 2 .29
5- 32 1. 44 1. 01 2. 14

(l )Fcr wet -;;id process.

{2 )For electric furnace process.

*sum of +16 mesh and flotation concentrate.

NOTES: Overburden based on dry density@ average = 90 lb./cu. ft. Matrix factors based on actual dry density.

Factors used: ft. thickness x 1613 =cu. yd./Ac; cu. yd x 1.215 = T(2000 lb.); ft. x 1960 = T(2000 lb.)/Ac.

37
EFFINGHAM COUNTY

EFF I NGHAM COUNTY SUMMARY OF RESULTS
Only one new hole, Number 8, was drilled in Effingham County. Phosphorite
Hole number 8 had no phosphorite of economic interest less than 150 feet of depth. The best zone was between 225 and 245 feet in depth, which is not within present mining range for this grade of phosphorite. Glass Sands
Effingham 8 has a layer from 30 to 39 feet that may be developed into a glass sand source, although overburden thickness may offset its value completely. Clay coating on sand grains as well as clay chips can probably be removed if strong scrubbing action is used. Heavy Minerals
Two layers containing Ti02 are shown in this well: 0 to 33 feet a~1d 38 to 105 feet. The content of Ti02 does not exceed 0.5% Tio2 . Clays
If the heavy mineral content of the layers above 105 feet merits exploitation, the clay layer from 105 to 120 feet may be a source of fuller's earths material, since it is mainly montmorillonite - a highly absorbent clay (Table Ef-4).

39

- 0 I 2 3
SCALE IN MILES

EFFINGHAM COUNTY
GEORGIA

Figure EF-1. Location of Holes - Effingham County.

40

.Ef.8

Et 8

0

20

40

60

60

~ 80

80

uLU.

z

~

at-..

LU 100

280

100

0

120

300

120

i40

140

160

160

__________ -----

180
Figure Ef-2. Lithologic Logs - Effingham County.

41

1-I=

EFFINGHAM e ~~ I1=- 0

1 - 1-.1 GA.MMA SCALE ,005 1-

r= 10 ~

1--

20 1- 1--

1--

I__.. ~ 1-

1- I= 1-- ___..

j::::::: 30
-
40

--- 1=

I=
1--

1---"

1-

1-

:7

I=1-- 50
1-

"

I= 1--

I= 1--

It:

II==

1-1- I--

1-tz. !- 1--

1-- -

I= 1-
1-

I= ~

I=:-' I= I= 1--

!= EFFINGHAM 8 t::::= 0

l= t

1-

[----.;.

1==1:
. P. IOMI

10

-H --

~ ~~

-= 20 I=

ESISTIVITY 2SO1-'H--M--:

1- -

-

I=I=
I =1-I =1 - -

- I= - 1--

g 30

-

40

I = --}--
[,'--- 50

t::::= 1--

1--

="'

1--

1-

- 1- -
I=

1- 1--
t - f.=::::l
1- 1--1 -

,_L-1 - 60

1----'-

1--

1--::-1-

I=

t::::=
70 I=

-I~=

eo

I=
1--
1--

1-- I--1--
I--I=
I--I--

90

I = 100 1-

I~ ~
~-

1-1--

1--
1--1--
1- I=

I-" 1--

110

1-

1-

I=
1-
1-

I=
If=i==
!-= 1--

1- I =
1- 1-1 - -1 - -
1-

I = 140 ,j--- 1-

j---
t -1\=

t::::= t::::=

g 120

1-
I=

130 I=

1--l

-

1:::::::::::: !====t=
140 I= ~

I= -
I=

- 1-
t--
1-

-

I=I=
I=

I= 1-

~ 1- 1--

1--

~

I=I--

1'---

!-----"1-- I= 1--'h- +-+- -

I=
1--
I="
1-= 1 -

150 1--
160 1-
170 1= -

1--
1- I=

180
190 I = 1--
200 I- I= -- - - )=: -

150

160
=
170
180
190 I- - 200

t::::=
1::::::: 1
1- ~: -

I= I=
I= I--
1-
- - 1- I-- - -
11-

- = l:t-

1.-= f-r 1--

r--
1-

.

1-

I= 1--I=

I=
1-

~

I= r=- 1- -

11- 1-1--
~

21o ,=_ =_ 1
2201_
230

- f = !-

240

-

- 1--

250 I ~

-~I- - -

~

~:=
t---

210

I = l= i -
- 3-

220

230

240

- 250 -

1-

260

I=

=

1- 1:::::::

- t::::=

, ~ 1 -I - -

1-

I~
1-
- i=:=

1- 1--I= I=

1-

I=

,_

____:;; ?---~ i-l~

I= =
1--

=== -:::::::::

1-

I~ -

280

:e=.==

290

300
~ I=

1=

Figure EF-3. Electric and Gamma-Ray Logs - Effingham County Hole Ef-8

42

TABLE EF-1 BPL DETERMINATION ON CORES
Effingham County

Hole No.
Eff-8

Surface Elevation (Sea Level)
Feet
37.6

Depth Feet
0-5 5-10 10-15 15-30 30-33 33-38 38-39 39-60 60-75 75-90 90-105 105-120 120-125 125-130 130-135 135-140 140-145 145-150 150-155 155-160 160-165 165-170 170-175 175-180 180-185 185-190 190-195 195-200 200-205 205-210 210-215 215-220 220-225 225-230 230-235 235-240 240-245 245-250 250-255 255-260 260-265
(Continued)

Core Recovery

Feet

][

w.s.

w.s.

w.s.

17

100

3

100

5

100

1

100

2

13

5

33

11

73

11

73

w.s.

w.s.

w.s.

w.s.

w.s. w.s.

w.s.

w.s.

w.s. w.s. w.s. w.s.

w.s.

w.s. w.s.

w.s. w. s. w.s.

w.s. w.s.

w.s. w.s. w.s. w.s. w.s. w.s. w.s. w.s.

BPL _j__
o.oo o.oo
0.00
o.oo
0.77 0.74 0.61
0.67 0.98 1.01 1.69 2.63 2.66 4.11
4.11
4.96 2.43 12.58 2.06 5.94 3.57 3.47 6.17 3.40 2.73 3.10 2.02 1.89 1.96 3.64 7.45
12.14 11.20 18.07 14.80 6.74 4.69 10.69
3.34

Hole No.
Eff-8

TABLE EF-1 (Continued) BPL DETERMINATION 'ON CORES
Effingham County

Surface Elevation (Sea Level)
Feet
37.6

Depth Feet
265-270 270-275 275-280 280-285 285-290 290-295 295-300 300-305

Core Recove::l:::

Feet

o

BPL
..L

w. s.

6.14

w.s.

3.57

w.s.

2.70

w.s.

5.33

w.s.

3.20

w.s.

2.33

w.s.

l.l.5

w.s.

0.98

44

Hole No.
Eff-8

TABLE EF-2 CHEMICAL COMPOSITION OF PROCESSED SANDS
-35+150 MESH FRACTION (Results are in weight percent)

Layer

Depth,

Loss on

Feet

Ignition

From To

(LOI) Si02 R~5 Fe~3 Al~3 cao MgO

30 39

0.25 88.12 .00 .19 4.05

.28 .016

Hole No.
Eff-8

45

TABLE EF-3 PARTICLE SIZE OF CORE MATERIAL
WEIGHT (%) DISTRIBUTION
Effingham County

Layer Depth, Feet From To
30 33
33 38
38 39

Core

-35

-150

.:!J2_ +150

-+325

-325

2.7 60.7 21.7

14.9

1.8 68.2 15.2

14.8

0.6 63.9 20.1

15.4

+
0'\

TABLE EF-4
EFFINGHAM COUNTY
VISUAL AND MICROSCOPIC OBSERVATIONS OF SANDS (35Xl50 MESH)
Note: Color abbreviations are: Br =brown, Cr = cream, Lt = light, Or = orange, Wh =white, Y = yellow

Hole -No.
Eff-8

Layer Depth

(Feet)

-Fro-m

-To

30

39

30

33

33

38

38

39

+150 mesh Sands in Core Weighted Average
- -Percent
67.2

Observations of -35+150 Mesh Fraction

Visual Color

Microscopic

Grey

Mostly clear. Some colored grey, white, green. Muscovite. Limonite.

Mostly clear. Some colored green, grey, white. Some coated with clay. Muscovite. Heavy minerals.

Mostly clear. Some colored green, white, grey. Muscovite. Phosphorite.

47

TABLE EF-5 EFFINGHAM COUNTY QUALITY OF SANDS (35 X 150 MESH)

Well No.
Eff-8

Layer Depth
~Feet)
30( 2 )- 39

%+150
Mesh Sands in core
67.2

Meets Approx. Chem.
* Specifications for
Qualitl Number
7(3)

Uniformity (1)

Chemical Size

G

G

(1) G = g9od; F = fair; P = poor
(2) Note overburden to be removed (3) Strong scrubbing action may produce a sand of higher ~uality number.
* Specifications are given and discussed on page 28, Project Report Number 6. Quality numbers and potential use are: 1 = optical; 2 = Flint, glass
and tableware; 3 = flint; 4 & 5 = Sheet, rolled, polished plate and window; 6 = green containers; 7 = Green glass; 8 %9 = Amber glass .

48

Hole No.
Eff-8

TABLE EF-6 X-RAY DIFFRACTION OF CLAYS (-325 MESH)

Layer Depth (Feet)
105-120

Description
Mostly montmorillonite. Some illite, quartz, and a.tta.pulgite.

'I

49
SCREVEN COUNTY

50

SCREVEN COUNTY

SUMMARY OF RESULTS

Five holes were drilled in Screven County.

Phosphorite

All holes were essentially barren.

Glass Sands

The five wells show sand of sufficient quality to be considered

potential sources of glass sands. In general, the crude sands contain

too much clay and organic matter for a glass sand, but with normal

beneficiation procedures the crude sands may meet chemical specifications

for qualities l or 2.

Heavy Minerals

Screven 4 from 0 to 100 feet shows 0.1 to 0.2% Tio2
holes present substantially smaller .amounts of Ti02 . Clays

The other

Two layers in Screven 1, 75-80 and 80-86 feet were identified as being

mainly calcite, although dispersed particle sizes approach that of clay.

The first 9 feet in Screven 2 show kaolinite contaminated with illite, mont-

morillonite, and quartz. Since this is a very thin layer, no economic

importance is attached to it.

Screven 4, however, shows kaolinite in some layers where montmorillonite

predominates. Kaolinite is present from 10 to 78 feet along with the mont-

morillonite, and from 86 to 90 feet predominates over the other clay minerals.

Additional drilling in this area may show kaolin deposits of economic import-

ance.

51

2 3 SCALE IN MILES

+

SCREVEN COUNTY

GEORGIA

Figure Sc-1. Location of Holes - Screven County

52

sc. 2

Sc.3

20

....
IJJ
uIJ.J.
z
.J..:.
a..
cLLI
120
i40
160

0 20

40

60

80

280

100

120 140

160

Figure Sc-2. Lithologic Logs - Screven County

53
. ~S~ c.~~ ------T---~------,---~----------~~----~--~ 0

20

40

- -- -

40

60

~ 80

80

uU.J.

z

:I:

I-

ll.

~ 100

100

120

120

i40

140

160

160

180

180

Figure Sc-2. Lithologic Logs- Screven County (Cont.)

1- f=- - j- sS-CR-EV+EN-' ljI~ . ~ - ~ -~_-

1= --=.
--

GAM_-.AtS-C-~-1,QO~~

--~ - - - 1 = - 1=

r---
t= f--

-\ -

I= ==

'= ~r--~~~~~==~-~ ~ ~~~;;H-1 -1~~==

1- f-- _ t - - S.P 10 MV. - _ 1-

SCREVEN ~.t='J-- _ RESIS.TlVITY 25 OHMS l-

o ~=

I

-~--=

~ ~~--

~ ~ - 1--=- t:::==

1-1

10 -

1)-

-

-

~=t~i-~~~-f_ ==~~l -r:.;1----- T==i- ===~ ~=i = ~--' - - _ F=

20

30

----:~- ~

-

~
-

~:--=r-f-= - -

- - -f:=

I=-

- 1- f - - - !-

f---- 1- - - -

"""

=

-= 1 ~ --

~ --
P

-

= 1I--=FF= -- - f----

= = ~---

l=f

,f - 5o

:~:_=1f---c::t-=t::::::-+--+::::1-::::r-+-==+-~=-+,~;~:.1

40 5o

~~ ~ ~==-

+-= :;::::;J

1 = 60 ..-;;:~ :;; ::::::::: =

1G- i:.:===-- 7'

.. "'\

1

60 F--_ll=Pi-:t--l-_-1--f-_--1--f--1----l--..~.

f.---

'=::':=- ,\..L.. 1- 1- - =

- - - =1- 1 =
- -1- 1 _ _1 -

70
eo

t=-
t...=l= = -

1=--rs:: -
_-<~

1--

70 ~

t

eo i';f::~:_f-~-~-+--+---1----1-~-+--f-

--1--

I-r=f-=-- I)

1-t:_=-=~~-==~---~==~ 90
== =- 100 -l=_ 110
120

1--t

1--

90 1;-f-=-

--

-t--

Vr'"I -,-~ ~

1-1-'+;-f--1--l--l!--+- ~--1--+- -11-..=.......'.-: !

100 ~L

r =_

~ j - -

-

1-

_ -= '==-~ =

+ __ 110 --F -~ ~

.f.-- l----'f--1--=+---+-+=:--

-~ 120 _ ),__ _ __,l__ __rt -

=t- - D 130 --=

I-=!-'---=

130 ~~---=-::Jj...1_:-::f-=+--1+-1---1---.-+--+--l

=c--!-=---=1--l--+--+--l- -+--+i:;;=+--1 140 -==~

_r---

_ 15o = F =

__;?-.e=-

~
r---

140 ~I~ - +---+_-___

15o _

_

_ :=--'==I1

--~-~~~~~--1--~= L=__+=~~ 160 ---
110

I-

~ leO

I=

1- 190

-

c~'

~~ 160

=r--- - -

; = - '-!( ~ l -~-~~= ~~~=f==1~ --~ +-- 1=~+~ =-~ --1

110
180

-=-1--

~

f-- + -1190

1-~-11---+--+-~--+--4---~~--

~~~p

- - I
-
- ~- -- -!---=-=

I~ >
I~r-

-1=- -

-~

--
-

--

1-
- 1 - - 1-

= _-\ =- - = - - 1-j- f::--

--
--

- n:-

-1f------
I1=- 1 _-

r= rE... I=
1---

200 210

1==1==1--l--l__:-:(~-1---t-==-1--t--1 210

-

IS
:-~

220 - f---
230

- .::J;F-f-
\- _;'=j

~ 220
_I-
- 230 1-

-

! I

IC:._

-

240

240

---.~ P't,:-1--!===+---t==+-_j 250

250

It

=

~-'---

:_ = - 1-

-

= -r----

......!,

-~ - _ - 270

--~

260 -
270 f---

t l ~--~-+-~-~~=~~==+=~= 280

-

--I-

-1--

=

f-- 290

L

-+----'-+-==1----11-=~:--1-_--FI===+
-1- ----

----=+=-=+1=1=-=-=-=-=-==

300 310

1-~-1-~-=+---J-.1...---1--=~==+=::...j._._r_=_j 320
1 - 1-- ~ --1---

LL--

_1-_
- _ ,_

1- - l = 1-

=-

= =1- -

= 1- 1 - 1-

=-~1 280

===..; f-.----

290 -I

- - =- :::J 300

1-=

~ 31o

1=

_ 320

.... ~ 1---1

-=~'~1----i 330

= 340

---

-_
1--~~~~- l-1==~=-~--~~~--1~---1~

-

1- = - j

--=-

- f;:;'l -=-- ~ ~l~--+1--11-_-1---1-::::--1--=1

=-r--

-E- i--::-

_ ,--1----J - -=j

Figure Sc -3. Electric and Gamma-Ray Logs - Screven County Hole Sc-l

55

I

II

I

SCREVEN 2

I

II

II

GAMMA SCALE .005

-" -

....,

ll""'

~

"-~
"'""I
1'-.
"1
'"'-

, . ~--.
~

c
~
....~ ei" "!>~ .._l_

I( 1 .-

.~ .-. l e

'I(
--~
""

~

0

10

-

20

30

40

50

60

70

80

1:

~

~

J

'"l



\.

90
100

Figure Sc-3. Electric and Gamma-Ray Logs - Screven County Hole Sc -2

\.n
0\

1-
1-

SCREVEN 3 GAMM A SCALE .005
1-

i-

-

~

~

l
0 1-

10

:

1 - 20
30 ~

~

-r_

S. P. 10 MV.

1

--'

-

-

"'-

1-

=

-

I I I 2~ scI REVEN 1 3 ~

I

0 !

RE SISTIVITY

I

+--

10

-

F-
20

=

>-:::::::. 30

-

40

50

1-

60

70

~ - ,..._ 2

40

I

-
_,

== 50 t=.:_______j_-_ ,

,....

-

==

=

60

- 70

J__..J

80

- - - -..,

-
------+=== 80

- - 1- -

-

90

90

1-

1-

- 100

""""'

f.-

I 100

.
Figure Sc-3. Electric and Gamma-Ray Logs - Screven County Hole Sc-3

57

~~~~
r::

:--~

~

~~~~f--M--~~1- ~i~~=~=--~

:~~f~~~l: : 1--+::w:: I=

:

:

~

~;f

'"~iIl-l-=lllll-lll1l-ll-11-1111111---ll!l-==1-----~

I= - 1----

1= -

= ~! =GA=MMSACSRECVAEUN ~4-

~
.oo -

c = 1" - - - I=

1-

1-

1-

l:t= 1-

1--

1- W'--1--

flll=lllh--!li-:-~~-!~~~~~~~~~llf -=1~--- 0

S.P. 20 MV.=
f::= t - 1-

-=

t=-1='"= - - - SCREVEN '4=
0

- : : : :1-:-l "RESISTIV- -IT- -Y- , - -5-0

OHMS- - = - -

1= -x:: ~ ='=

10

t:::::::l

10 j:::::::: l::t:::

_ 1-

20 I=

1=:

20 t== - l=':s i=" --1--

1---t=

1::::::::
30 1:::::::::.--l:F -

- 1 - -1-=1= -

1-

I.;____

- 1'---
1-

1==:::: -

1- I--

1-

1--

r=-=1 - - 1-

~ - I= -
1---\o--
1'=s;;

I=

I--

t=I--

~

1-

I--I--

I-I--

1--

- 1-
I--
t=
I-1-
I"-- I-i=
1----=

I1--\.

1--

I~

1-

"'

I - - I - - -~;;:

ll= ~
~ ~- I - -
1I--

I-I-I--
!:"'---:

I--
I=
I-1--

40 50 60 70
eo
90 100 110 120
130 140 150 160

I= - = = - -1---II1------1 - I-

I- f
1,1= I=
If - I - -

I-I+ -

I-+-
1- I--
1-

t= t=
I--

1::::::::::: 1:::::::::::

- - - - 1 - -

- ---

---1-1=-

1-

1-- -r-

It==
II==

=1tt==::::==::::

1- I-

t= --~---~--~=--~

- 1 - -1--1'

I-

I--

1--

1--H

II-

t= IE

1-

-~::::::::--r=--- -- ---

1-

H - 1-

_ t=J;;

40 50 60 70
eo
90
100 110 120 130
140 150 160

I=t= l ~l--

I-

1- - [ =

- ! = -~t=

I- -1- -1-+----1--1---

--~;:= _

- 1- - - -

= - 1= .=:' -= -

11-- 1 - - -

=
-

- = = t=====:!-~-- - - -1-

t=t=r=FI= - - 1--- -~=.~t= -- -- ~ =j::::::::

1---t=~l= - 1 = -

-~=

- - 1'=== -

= _ I=:- - J1.=..".2"':'";:'

1---1- 1- 1--1- 1 - - -

- 1=1--- --~1= =\j:~ ::::- ::: -

1= 1=
- 1-

1- 1$1= -

1---
-~--

1-

l==ttl'

- r== - Js>=

::::;

I+

I--

11-

I - - 170 -

II ==

leO
~

- - - 1-J - - -I-

1--1-=- 170
leO
~

1- --1; I--
"-:::=
=1:::::::

1--

~-

-

~

.~ 1-

= - = 200 f--= - j= rlc::.- - - _ _

200

-l1==l- == =

- ~- ._,~ ----

--
1- t - -

1- I~

- -

I-

I--
i:=} ,

~

~ -'---- -

=

I*=I--

=

::1::::: -

I=
I--
I-- -
1--

~

I--

b3: 210 1--1-- 1~ ..---

1=

I=

t:::=

210 -1:::::::::

- := - 220 1--+-+1- --1+---il1----+-i--f---t--~!-==:r=~ 220

::::::::::::-

I=F;=~ t--
1-
-

-t-1--

l- l - 1-

t-

-

' .

,_ -

1--
I~

_

,_ _

-1-1-

230

=
==

I--
I=

230 240

-=-~----~ -~~--

I-

240

= - = - - 250 '=-- ~=-I--

-

= = 1--

250 -

- :::~L

t==

-:::::::: l=t==~ -

,_ l----=1--- 260 ='==I= -::= I-- ::::::::::: j:::::::: 260

~~1- - - 1

I-I--

I-C::=

- 1--
270
:::::::::
- l - -1--7'"----
=1=

-

-
'== =

= =

- t =I=

270

2eO

-

::::::::::::::::::: ~ ~

::::::::::::
'::::::::
--

~- -
I~ --

1-

290 300

-- r-

-

1-!-

I-1-

II== -

1---l

310

Figure Sc-3. Electric and Gamma-Ray Logs - Screven County Hole Sc-4

Hole No.
Sc-1

TABLE SC-1 BPL DETERMINATION ON CORES
Screven County

Surface Elevation (Sea Level)
Feet
52.1

Depth Feet
0-5 5-10 10-15 15-17 17-22 22-27 27-32 32-37 37-40 40-46 46-57 57-60 60-75 75-80 80-86 86-96 76-114 114-123 123-125 125-130 130-135 135-140 140-145 145-150 150-155 155-160 160-165 165-170 170-175 175-180 180-185 185-190 190-195 195-200 200-205 205-210 210-215 215-220 220-225 225-230 230-235
(Continued)

core RecoveJ=

Feet

o

5

100

5

100

5

100

1

50

Lost

4

So

5

100

5

100

1

33

6

100

5

45

4

100

3

20

5

100

5

83

5

50

4

22

1

11

w.s.

w.s.

w.s.

w.s. w. s. w.s. w.s.

w.s.

w. s.

w.s.

w.s .

w.s.

w.s.

w.s.

w.s.

w.s .

w.s.

w.s .

w.s.

w.s.

w.s.

w.s.

w.s.

BPL
...L
o.oo o.oo
0.00 0.00
1.48 2.53 5.60 2.19 5-90 2.12 0.00 0.00 0 . 00 0 . 00 0.00 0 . 00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0 . 00 1.18 0.74
o.oo
0.00 0.00 0.00 0.00 0.00 0.00 0.00
o.oo
0.00 0.00 0 . 00

59

TABLE SC-1 (Continued) BPL DETERMINATION ON CORES
Screven County

Surface

Elevation

Hole

(Sea Level)

No.

Feet

Depth Feet

Core Recove::J::

Feet

o

BPL _L_

Sc-1

52.1

235-240

w.s.

240-245

w.s.

245-250

w.s.

o.oo o.oo o.oo

250-255

w.s.

255-260

w.s.

0.00
o.oo

260-265

w.s.

265-270

w.s.

270-275

w. s.

275-280

w.s.

0.00
o.oo o.oo o.oo

280-285

w. s.

285-290

w.s.

290-295

w.s.

295-300

w.s.

0.00
o.oo o.oo o.oo

300-305

w.s.

0.00

305-310

w.s.

310-315

w.s.

0.00
o.oo

60

TABLE SC-1 (Continued) BPL DETERMINATION ON CORES
Screven County

Hole No. Sc-2
Sc-3

Suxface Elevation (Sea Level)
Feet 171.0
159.0

Depth Feet
0-3
3-9 9-12 12-15 15-19 19-23 23-25 25-33 33-39 39-46 46-54 54-62 62-69 69-74 74-82 82-86 86-91
91-99 99-107 107-114 114-119 119-123

Core RecoveJ:

Feet

a

2

67

5

83

3

100

2

67

4

100

4

100

2

100

8

100

8

100

8

100

10

100

8

100

2

29

7

100

3

38

2

50

2

40

7

88

5

63

4

57

7

100

5

100

o-6
6-15 15-20 20-30 30-45 45-49 49-58 58-60 60-72
72-75
75-79 79-90
90-93 93-98 98-103 103-110

4

67

5

56

5

100

4

40

2

13

3

75

5

56

2

100

3

25

3

100

2

50

5

45

3

100

5

100

5
w. s.

(Continued)

BPL ~
o.oo 0.00 o.oo o.oo o.oo 0.00 o.oo 0.00 0. 71 0.40 1.85 3.03 4.08 2.87 1.45 1.04 1.85 0.88 1.55 2.12 3.10 2.50
0.00 0.00 0.00 0.00 0.00 0 . 00 0.00 0.00 0.00 o.oo o.oo 0.00 0.00 6.50 6.50 o.oo

61

TABLE SC-1 (Continued) BPL DETERMINATION ON CORES
Screven County

Bole No.
Sc-4

Surface Elevation (Sea Level)
Feet
325.0

Depth Feet
0-10 10-15 15-20 20-28 28-36 45-50 50-55 55-60 60-65 65-69 69-74 74-78 78-86 86-90 90-95 95-100 100-105 105-110 110-117 117-124 124-130 130-135 135-140 140-145 145-150 150-155 155-160 160-165 165-170 170-175 175-180 180-185 185-190 190-195 195-200 200-205 205-210 210-215 215-220 220-225 225-230
(Continued)

core RecoveJ:::

Feet

o

5

50

5

100

4

80

5

63

5

63

5

100

5

100

5

100

5

100

5

100

5

100

4

100

5

63

4

100

5

100

5

100

5

100

5

100

5

71

5

71

w.s.

w.s.

w.s.

w.s.

w.s. w.s.

w.s.

w.s.

w.s.

w.s.

w. s.

w.s.

w. s.

w.s.

w.s.

w.s.

w. s.

w. s.

w.s.

w.s.

w.s.

BPL
_L
0.00 0.00 0.00
o.oo
0.00 0.00 0.00 0.00 0.00 0.00 0,00 0.00 0.00 0.00
o.oo
0.00 0.00 0.00 0.00 0.00
o.oo
0.00 0.00
o.oo
0.00 0.00 0.00 0.00 0.00 0.44 2.16 1.08 0.64 2.22
2.73 0.78 0.54 0.81 0.98 1.38 0.44

62
Hole No. Sc-4
sc-5

TABLE SC-1 (Continued) BPL DETERMINATION ON CORES
Screven County

Surface Elevation (Sea Level)
Feet
325.0

Depth Feet
230-235 235-240 240-245 245-250 250-255 255-260 260-265 265-270 270-275 275-280 280-285 285-290 290-295 295-300

Core Recovery

-Feet

_j_

w.s. w.s. w.s. w.s. w.s. w.s. w.s. w.s. w.s. w.s. w.s. w.s. w.s. w.s.

BPL
%
0.71 1.04 0.57 0.98 0.91 0.54 0.54 0 . 00 0.00 0.00 0.00 0.00 0.00
o.oo

118.2

0-3 3-6 6-9 9-12 12-15 15-30 30-45 45-60 45-60 60-75

2.1.

83

0.00

21.

83

0.00

21.

83

0.00

212.

83

0.00

2

67

0.00

2

13

0.00

0.00

3
w.s.

20

0.00
o.oo

1

7

6.98

Hole No. Sc-1
Sc-2
Sc-3 Sc-4 Sc-5

63
TABLE SC-2 CHEMICAL COMPOSITION OF PROCESSED SANDS
-35+150 MESH FRACTION (Results are in weight percent)

Layer Depth, Feet
-Fro-m-T-o
0 5 10 15 22 27 32 40 46 57
12 19 25 39 39 46 54 62
0 6 6 49 49 58
45 50
0 3 3 6 6 9 9 12 12 15 15 30 45 60

Loss on Ignition
(LOI) .2..Q2 ~2.Q5 Fe~3 Al~3 cao

0.11 95.68 .00 0.00 94.74 .00 0.17 87.28 .06
2.34 84.50 .80
1.99 84.46 .91

.26 0.38

.03

.27 0.24 0

.27 3.78 .31

.28 2.64 2.63

.31 2.70 2.35

0.05 95.66 .00 .19 0.89 0

0.39 96.22 .00 .14 0.63 0

0.10 96.06 .00 .26 0.71 0

0.13 93-72 .48 .34 0.87

.34

0.14 97.04 .oo .14 0.06 0
0.78 96.60 .00 .16 0.24 0
0.12 96.84 .oo .12 0.32 0

0.84 89.84 .00 .88 1.79 0

0.20 96.04 . 00 .10 0.05 0

0.25 96.78 .00
0.11 99-30 .oo

-77 0.14 .24 0.12

0 0

0.10 97.48 .00 .12 0.08 0

O.ll 97.62 .00 .23 0,20 0

0.12 92.62 .oo -79 1.11 0

0.13 97.54 .00 .09 0.19 0

~
.007 ,004 .025 .052 .119
.009 .014 .010 .016
.002 .004 .002
.008
.002 .004 .002 .003 .007 .022 .005

64

TABLE SC-3 PARTICLE SIZE OF CORE MATERIAL
WEIGHT (%) DISTRIBUTION
Screven County

Layer

Depth,

Core

Hole

Feet

-35

-150

No.

-Fro-m- T-o

+35 +150 +325

-325

Sc-1

0 5

40.4 38.2

8.8

12.6

10 15

26.6 39.0 14.4

20.6

22 27

4.9 60.1 13.0

22.0

32 37

2.3 52.4 19.4

25.9

37 40

3.8 9.8 56.5

29.9

46 57

7.1 51.1 14.9

26.9

Sc-2

12 15

51.6 24.7

3.3

20.4

15 19

43.1 33-3

2.1

21.5

25 33

2.8 64.0

6.7

26.5

33 39

1.7 54.3 15.3

28.7

39 46

0.9 56.7 17.0

25.4

54 62

18.4 64.8

3.3

13.5

Sc-3

0 6

34.9 38.7

7.2

19.2

6 15

34.2 33.4

6.4

26.0

15 20

43.1 25.9

2.3

28.7

20 30

48.4 21.5

2.9

27.2

30 45

74.6 8.4

2.1

14.9

45 49

38.0 39-5

3-7

18.8

;

49 58

26.0 51.0

5-9

17.1

Sc-4

45 50

46.8 19.6

3-9

29.7

(continued)

TABLE SC-3 (Continued) PARTICLE SIZE OF CORE MATERIAL
WEIGHT (%) DISTRIBUTION
Screven County

Layer

Depth,

Core

Hole

Feet

-35

-150

No.

From To

+35

+150

+325

-325

Sc-5

0 3

28.0 54.0 13.1

4.9

3 6

49.9 24.9

8.4

16.8

6 9

50.2 25.0

4.5

20.3

9 12

47.8 33.7

7.0

11.5

12 15

52.9 39.9

2.2

5.0

15 30

60.5 22.9

7.6

9.0

45 60

19.8 50.2

8.4

21.6

()'\ ()'\

TABLE SC-4 SCREVEN COUNTY VISUAL AND MICROSCOPIC OBSERVATIONS OF SANDS (35Xl50 MESH)
Note: Color abbreviations are: Br = brown, Cr = cream, Lt = light, Or = orange, Wh ~ white, Y = yellow

Hole -No.
Sc-l

Layer Depth

(Feet)

-Fro-m

To

0

5

10

15

22

27

32

40

46

57

0

5

10

15

22

27

32

37

+150 Mesh Sands in Core Weighted Average
Percent
78.7
65.6
65.0
38.8
58.2

Observations of -35+150 Mesh Fraction

Visual Color

Microscopic

White to tan

White to tan

White to grey

Dark grey

Dark grey

Clear sand. Small amount of clay coated on sand. Colored tan, yellow. Phosphorite?

Some clear sand. Some colored white, yellow. Some coated with clay. Phosphorite? Limonite.

Some sand clear. Some colored yellow, red. Traces of clay coating. Muscovite. Phosphorite.

Mostly clear. Some colored green, yellow. Muscovite. Limonite. Phosphorite.

(Continued )

TABLE sc-4 (Continued)
SCREVEN COUNTY
VISUAL AND MICROSCOPIC OBSERVATIONS OF SANDS (35Xl50 MESH) Note: Color abbreviations are: Br =brown, Cr = cream, Lt = light, Or = orange, Wh white,
Y = yellow

Hole No. Sc-l

Layer Depth

(Feet)

From

To

37

40

46

57

+150 mesh Sands in Core Weighted Average
Percent

Observations of -35+150 Mesh Fraction

Visual Color

Microscopic

Mostly clear. Some colored white. Some coated with clay. Phosphorite. Muscovite. Limonite.

Mostly clear. Some colored white. red, a few coated with clay. Muscovite. Phosphorite. Limonite.

Sc-2

12

19

25

46

54

62

12

15

76.3 60.6
83.2

15

19

25

33

33

39

Tan to cream

White to tan

Cream

Mostly clear. Some colored white, green, yellow, red. Some coated with clay. Phosphorite?

Mostly clear. Some colored white, red dark. Some coated with clay. Muscovite.

Mostly clear. Some colored white, tan. Phosphorite?

Mostly clear. Some colored white, tan.

Phosphorite.

0\ --...;)

(Continued}

0'\
(X)

TABLE SC-4 (Continued)
SCREVEN COUNTY
VISUAL AND MICROSCOPIC OBSERVATIONS OF SANDS (35Xl50 MESH)
Note: Color abbreviations are: Br =brown, Cr = cream, Lt = light, Or = orange, Wh =white, Y = yellow

Hole -No. Sc-2

Layer Depth (Feet)
-Fro-m -To

39

46

54

62

Sc-3

0

58

0

6

6

15

15

20

20

30

30

45

+150 mesh Sands in Core Weighted Average
Percent
7.49

Observations of -35+150 Mesh Fraction

Visual Color

Microscopic

Mostly clear. Some colored white, green, red. Phosphorite. Clay.

Mostly clear. Some colored white, red. Phosphorite.

Cream to white to reddish

Mostly clear. Some colored white. Some coated with clay. Heavy minerals. Organic material.

Mostly clear. Some colored red. Some coated with clay. Heavy minerals. Muscovite.

Mostly clear. Some coated with clay and iron oxide. Muscovite. Heavy minerals.

Mostly clear. Some colored white, yellow.
Some coated with iron oxide. Muscovite. Heavy minerals.

Mostly clear. Some colored white, red, yellow. Muscovite. Heavy minerals.

( r.nnt .i nnPr'll

TABLE SC-4 (Continued)
SCREVEN COUNTY
VISUAL AND MICROSCOPIC OBSERVATIONS OF SANDS (35Xl50 MESH)
Note: Color abbreviations are: Br = brown, Cr = cream, Lt = light, Or = orange, Wh =white,
Y = yell'ow

Layer Depth

(Feet)

Hole No. From

To

Sc-3

45

49

49

58

Sc-4

45

50

45

50

Sc-5

0

30

45

60

0

3

+150 Mesh Sands in Core Weighted Average
Percent
66.4
82.3 70.0

Observations of -35+150 Mesh Fraction

Visual Color

Microscopic

Mostly clear. Some colored white, yellow. Some coated with iron oxide. Muscovite. Heavy minerals.

Mostly clear. Some colored white, red, grey, yellow. Some coated with iron oxide. Heavy minerals.

Cream to red

Some clear sand. Some colored white. red, grey. Some coated with iron oxide. Heavy minerals. Feldspar.

Reddish tan to cream to white

Cream

Some clear. Some colored white, red. Some coated with iron oxide. Organic matter. Heavy minerals.

(Continued}
{)'\
\.0

---.;)
0

TABLE SC-4 (Continued)
SCREVEN COUNTY VISUAL AND MICROSCOPIC OBSERVATIONS OF SANDS (35Xl50 MESH)
Note: Color abbreviations are: Br =brown, Cr =cream, Lt =light, Or= orange, Wh =white, Y = yellow

Layer Depth

(Feet)

Hole No. From

To

Sc-5

3

6

6

9

9

12

12

15

15

30

45

60

+150 Mesh Sands in Core Weighted Average
Percent

Observations of -35+150 Mesh Fraction

Visual Color

Microscopic

Mostly clear. Some colored green, white, red. Some coated with iron oxide. Heavy minerals. Organic matter.

Mostly clear. Some colored red, white. Some coated with iron oxide. Organic matter.

Mostly clear. Some colored red, white. Some coated with iron oxide. Heavy minerals.

Mostly clear. Some colored white, green. Some coated with iron oxide. Heavy minerals.

Mostly clear. Some colored red, white. Muscovite. Heavy minerals.

Mostly clear. Some colored white, red. Some coated with iron oxide. Heavy minerals.

71

Hole No. Sc-1
Sc-2
Sc-3 Sc-4 Sc-5

TABLE SC-5 SCREVEN COUNTY QUALITY OF SANDS (35 X 150 MESH)

%+150

Layer Depth Mesh Sands

(Feet)

in core

0- 5

78.7

10 - 15

65.6

22 - 27(2,3) 65.0

32 - 40(2,3,4) 38.8

12 - 19

76.3

25 - 46

60. 6

0 - 58

74.9

45 - 50

66.4

0 - 30

82.3

45 - 60

70.0

Meets Approx. Chern. Specifications for
Qualit;y: Number *
7(5)
7
7 7 7 7
7 8 7, 8, 9 7, 8 9

Uniformity (l)

Chemical Size

G

G

G

G

G

G

G

G

G

G

F

G

G

F

G

G

F

F

G

G

(l) G = good; F = fair; P poor
(2) Silica may be low (3) Alumina too high - sample may meet higher quality no if well scrubbed.
(4) Layer from 37 to 40 very fine sand. (5) All these samples may meet higher quality numbers if beneficiated.
* Specifications are given and discussed on page 28, Project Report Number
6. Quality numbers and potential use are: l = optical; 2 =Flint, glass
and tableware; 3 = flint; 4 & 5 = Sheet, rolled, polished plate and window; 6 = green containers; 7 = Green glass; 8 & 9 =Amber glass.

72
Hole No. Sc-l Sc-2
Sc-4

TABLE SC-6
X-RAY DIFFRACTION OF CLAYS (-325 MESH)

Layer Depth, (Feet)
75-80
80-86

Description Calcite. Calcite. Trace of illite.

0-3 3-9 19-23 23-25

Mostly kaolinite. Some illite and quartz.
Mostly kaolinite. Some montmorillonite and quartz.
Mostly montmorillonite. Some kaolinite, illite and quartz.
Montmorillonite.

10-15 15-20 20-28 28-36 60-65 65-69 69-74 74-78 86-90

Mostly montmorillonite. Some kaolinite, and illite.
Mostly montmorillonite. Some kaolinite, illite, quartz, and attapulgite.
Mostly montmorillonite. Some kaolinite, illite and quartz and attapulgite.
Mostly montmorillonite and kaolinite. Some illite and quartz. Trace of attapulgite.
Mostly kaolinite and montmorillonite. Some illite and quartz. Trace of attapulgi te. Mostly montmorillonite and kaolinite. Some illite and quartz. Trace of attapulgite.
Mostly montmorillonite and kaolinite. Some quartz. Traces of illite and attapulgite.
Mostly montmorillonite and kaolinite. Some illite and quartz.
Mostly kaolinite. Some montmorillonite, illite, and attapulgite.