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 ro Q) f-1 c::t: s t1l f-1 00 0 pf-.1, '+-i 0 Pol t1l :2! :>< Q) 'd ~ ~ rl Q) 8 bO r:Hr., 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 ~~I= - ------- - I F= ~ ~C!_AMMA SCALE 005 - ------- - = - ==- -1- r-- 0 - ~~~-,~ ~ _1:6= AT HAM - I= '-= 0 - -~- -1-=i" I- + --=!=- - NESISTfVITY 25 OHMS ------- r-- 1-1---r - 10 1- - 20 I= 30 r-- = I= = I?= ~I"'F 10 = = 20 30 ------- ~ =-- r- ------- 1------r-r-- :=:;::;' ~ 1------- r-- ~ +I---=---- 40 50 - := = - = t"= I~ r-- -------------- r-- = ~ ------- r-- 1- .....,___ I- 60 70 eo 1-----. =- ......_._ 90 i= = c------ ~- !--=: = 'r=-- l=r- i= c---)- : -::::::- t--- - r-- == ~ 100 rr---- 110 120 ~ r----- 130 140 ~ - - -- ,- r-- r--I= r - -- == 150 = 160 ~ r-- - 170 I=r-- -=7 r-- leO 1=: 190 r-- 1-r-- ----=... -----:;= ~ ~ 200 i = 210 220 = I = ------- ------- ------- - - - - 1------- ------- ~ 1---=-- ------- 40 r-- 50 I= ------- I - 1------- ------- r-- I----," ,...;=>-- 60 70 1- - -- 1---..:- ~ I"'--- 1- eo 1- ------- t"'1---; 90 -----' 100 1------- ------- r-- I~ 110 1------- - --t 1-------' 120 ii== = 130 ,'-_-_-_-_-_-.; 140 = i= = I - ------- - 160 It!=== -= 170 1- 1 1- ------- - = r--- -------- - II -- ------- - f== - leO 190 I= 1------- r-- - f= - 200 - " - 210 -~ 220 f--- I= = -=-- =-=::-s- ------- r-------- - :;;::r 1 - = :;s;-1- i= != :- r-- I=i= 1- r-r----- - - ------!= 1- ------- , _______ ~ 1------- 1- r-- ,_ 1-------I = - - - 1------- ---1 --- 1:-~ ::::::::::: ~~ !====" 1------- ,=_ t==;:; ==- -I= - ------r-- ------- ------- i = ------- t-:s: ~ --=i= r-- - i=- ==l=- f-'-< 1------- ------- 1- F=" !-= I= ------- I= ------- 1------- 1- .:_ ------- ------- r - - ------- I-_ f=""" f--- - :-------I = 230 I= = H1.-- 230 = ====' = r- r-I= f= 1- - - I =I= I= ~ = = 1------- ,_ ------- = ~ :.l: - '-=-- I= 240 250 260 r-- 270 1- 2eO -------r--- - 1------- I- r-- 1- - - - '-- ------- ------- ~ 290 r----- - = ;_\E ------- 300 - - = r----- - ------- r== = ------- I~ ;C= ~ ------.. - -- 1-= t"= ------- =~ ~ = '-?- ;::::::= 240 250 260 270 2eO 290 300 ~ i=" ------- I= ~~ = 1------- ------- 1------- I= r-- = ?= --"' =-- ------- r-- 1- I== r-- - r-- ------- f - - - 1------- _z:. 2::: 1=- ------- 1- F -------- r--r-- == 1------- = =I~ = - ---------------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- f-- I - .. 1---- - -l - f-' 1----+- 0 I 10 20 30 I 40 50 60 ' ro 80 90 100 110 I i= 120 t ~ I I ' = - 1- -- ! - - 1- S.P. I 1IIO0 MV.,'- I : I d 7= ~ I c~ AT HAM . 0 -<;""" ,.-::.. - 10 = ' r 20 r=:-1 -- 30 = ' - 40 : - 1-=- 1---- i- 50 ::=-1 r:: = - 60 - =- ro ~ ' 80 f--1 - f--1 90 - ::;I 100 f - - 110 - ~ t--- 120 - T---.-- I RESISTIVITY_ l5 OHMS ' I<- + j 1- =F- ':--1-- ' ' ' f-- 7 b\= 130 - 140 Ic-+- -- '-- ' 130 r- -' 140 I~ 150 ' - +' - r::: ' 160 I'-. ~ ~ 170 ,_ 180 1--190 E:=f "---= -L -= ~~I 150 ! -..-"" i -= ,:...._ *E-~ ,-----I --1- 160 ....__ -r 1- 170 - ---, ==!== ~I 180 r-----1 - _, 190 1- I ___:::; iC:!l! ...- - I--- I--- f-- 11---~- 1--- Figure CH-3. Electric and Gamma - Ray Logs - Chatham County Hole Ch-7 h ' C ATHAM 19 ' 1 I GAMMA SCALE .005 : I- - ' I ' ' 1'E- ;= _~ __. - S.P. 10 MV. - I - .j--+- . IAT HAM 9 I- -+- CH ' ' 0 ':~- -l---1== 1- j1-- 1=1==- ~ 1-- 1= - ~ f------- 1 :!-------:! 0 ~ ~r=~=-i=~="" n= j 20 i-----l1-- - 1I=-= : ~ 11=:r'- --. I= 1i -----!--f--- 20 I-- :I 30 I,=_ _- !=----1-- - 1 - 30 40 I1~_=-:_ J~ _ ; _ \L_ ii-------- I i I - ii =I 40 f== I;$ = ,::::----~ 50 I1---=- L=2'l I LI=-;__l 50 1- 1 - - - i 60 II - - I I '\ .I 1-; I I J --l-'----I 60 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.