WELl. LOGS OF THE COASTAL PLAIN OF GEORGIA

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1 GEORGIA STATE DIVISION OF CONSERVATION DEPARTMENT OF MINES. MINING AND GEOLOGY GARLAND PEYTON. Director THE GEOLOGICAL SURVEY Bulletin Number 70 WELl. LOGS OF THE COASTAL PLAIN OF GEORGIA by Stephen M. Herrick, Geologist United States Geological Survey.Prepared cooperatively by the U. S. Geological Survey ATLANTA 1961

2 318 GEORGIA GEOLOGICAL SURVEY BULLETIN 70 Thicknes s Depth ( f e e t ) (f eet) Sand: fine to coarse-grained._....._...._._,..: Sand: fine"to coarse-grained._.._. _..._ Sand: f ine to coarse-gramed.,.._:.. ~-.' _. -.:.....: Sand: fine to coarse-grained.,.._:._...._., Sand: f ine to coarse-grained.....:._.._._....._..._.., Location: 1.5 mi. east of Offerman, Land Lot 329, 4th _ Land District Owner: No" 1 Ad am s-m ccaskill Driller: W. B. Hinton Drilled: May 1938 PIERCE'COUNTY Well No.: GGS 119 Elev.: 75 'I'hicknes s Depth (feet ) No samples In Miocene (Undifferentiated) : Sand: fine to coa rs e-grained ; limestone, white, r ather dense (much calcitized), sa ndy, ph o sp~atic.._~ : : ~ San d and limestone: as above; dolomitic' limestone, Iightbrown, sacchar oida l _ _:...~_ :., Oligocene (Undifferentiated): Sand and limestone : as a bove with more limestone at depth, Iight-gray to white at depth, much calcitized, nodular, sacchar oidal, f ossiliferous (macroshells and Foraminifera); Quinqu eloculina sp. ats \" Upper Eocene: Jackson Group: Ocala Limestcne; Limestone : white to cream, sandier more calcitized and dolomitized at depth, f ossiliferous (bryozoa n and echinoid remains, some ma croshells, and Foraminifera), _ 265 Bry ozoan remains p rominent at Camerina s p, at Operculinoides [l oridens ie, L epidocyclina sp. at Asterocy clina nassau ensis at Gypsina globula, Pseudop lwagmina fl intens is at Cam e1'ina stri atoreticu lata common at : Opercu/ ina mar iann ensis at Limestone as ab ove but much sandier at Limest one as above but more dolomitized' with depth at :"

3 WELL LoGS OF THE COA STAL PLAIN OF GEORGIA 319 Middle Eocene: Claiborne Group (Undifferentiated) : T hick n ess Depth ( f eet) Sand : f ine to coarse-grained, pho sphatic; dolomitic limestone, as abo ve,._ ,000 Limestone: ligh t-gray, massive, dense, mu ch cal citized, somewhat sandy, cherty (at cert ain ho rizon s), f ossiliferous (f ragments a nd molds of macrosh ell s, a coquina at certain horizons, bryozoan remains, a nd F oraminifera) ,200 A sterocycl ina monticellen sis at L epid ocyclina (Polylepidina) antillea at Bryozoan remains prominent at Dolomitic. limestone : brown, sac charoidal; interbedded limestone, as above..., ,370 Limestone: cream, poorly consolidated, granular, somewhat calcitized, cherty and gypsiferous at cert ain horizons, fo s- siliferous (some Foraminifera at certain levels) ,760 Oper culinoides sp., Ast6roc yclina sp, prominent at I ', Dolomitic limestone : light-gray, saccha roidal, gypsiferous Sand: fine to 'coarse-grained, phosphatic _., " ,880 1,895 Limestone: cr ea m, g r anula r, somewhat 'calcit ized, coarsely glauconi tic, dolomitized at certain horizons, f ossiliferous,: (abundant bryozoa n remains); interbedded sand" fine to medium-grained, phos phat ic._..._....._....,,. Cla y : yellowish- green, fissile, silty, micaceous,.... _ 75 1, ,055 Marg inu lin a sp, at Cibicides ta llahatt eneis at '1 I, ' Lower Eocene: Wilcox Group (Undifferentiated): Limestone: light-gray, sandy, coarsely glauc onitic.,... Marl: dark-gray, fi ssile, sandy, glauconitic, micaceous, pyritiferous,.fo ssiliferous (Foraminifera) ',,_,.;. _... Limestone: white, sandy, coarsely glauconitic, fossiliferous (fragments and molds of macroshells)._._.._ 30 2, , 15 2,135 Sand: fine to coarse-grained, subangular, phosphatic; Eponide«dor/i, l'alvulin eria wi lcox6nsis at Alabam ina wilcoxensis at :..._. 90 2,225

4 . 320 GEORGIA GEOLOGICAL SURVEY BULLETIN 70 Palocene: Midway Group: Clayton Formation: Limest one : white, den se, mu ch calcitized and crystalli ne, fossilife rous (m acroshells, bryozoan remain s, Ostracods, and some Foraminifera); interbedded clay, dark-gray to black, fi ssile, carbonaceous, micaceous (f i ne I y dissejt?inated, flakes), fossiliferous; ( some.foraminifera), - _ Indurated sand : da ~k- gra y t o brown, fine-grained, ph osphatic, glauconi t ic, mic aceou s, f ossiliferous "(macr oshellil, Ostracods, a nd Foraminifera at certain levels); interbedded."" marl, brown to dark-gray, silty; gla uconit ic, micaceous, fossilifero us (For aminifera at variou s level s)... ~ _. :.. j Discorbis 'IIIidwayensis val'. a t Eponides lotus at 23' '.. V aginirlina l.ongifo1 ma a t f; n-,%. t. '" "- j.. ~ ; Upper Cretaceous: Post Tuscaloosa (Undifferentiated):.,.. ', Marl : dark-brown to' bluish- gray, sandy, m ica c'~ ~us, pyritiferous, gla uconitic, f ossiliferous. (macro sh ells, Ostracod s, and Foraminifera)..._ , Thicknes s Depth (feet ).f.. I ' I O ',..... _ '. Globotrunceno: sp, at Globoiruncama sp., Gu embelina sp., Gaudryina sp, at :. - j. I ; 3,215 Marl: brown, fissile,'-silty, glaueonitie.. car bonaceous, mica-..1'" ceous, fo ssiliferous ' (macro- and microfossil s), " 3,'740 Planulina d. P. texana, Globorotalia michelinuina 'at _II j : Plamtli~a taylor ensis lit 3455\~ 470. K yphop fjxa christneri at Vagimdina texana at Sand: fine to coa rse-g r a ined, pho sphatic, indurated.at cer - tain horizons; interbedded marl, as'abcve : Tuscaloosa Formation: ~ e», ' 1. Clay: gray, to dark-green, fissile,.sandy, finely micaceous, somewhat iron-stained; interbedded sand, fine to coarsegrained _....: :: _~ :~:j_~ ~. _.. ~~ : :. ~2---_-- --.:- -.. _..:..,..:._. 75 "'.. Sand: fine to coarse-grained; interbedded clay, as above 0_. 255 Siderit'~ ' nodules prominent\t Sand: fine to medium-~rai~~d ; somewhat indurated; finely gla uconit ic, mi caceous, fossiliferous (m acroshells)... _ ", 3,875 3,950 4, , 4,246

5 WELL LOGS OF TH~, COASTAL PLAIN OF GEORGIA 321 Lower Cretaceous(?) (Undlfferentiatedj ; Thickness Depth ( f eet) Sand : fine-grained, highly micaceous; interbedded,clay, green to red, sandy, micaceous...._. -, 102 4,348 Basement Complex (Undifferentiated):, Crystalline rock 27 4,375 ',. to Summary: No samples _..... '-....._. ::_.. In Miocene (undifferentiated).._..._ Oligocene (undifferentiated) Upper Eocene (Ocala limestone) _~.:.._. ~... 2'65 Middle Eocene (Claiborne group, undifferentiated)....:.. 1,190 Lower Eocene (Wilcox group, undifferentiated)._ Paleocene ( Clayton formation) _ Upper Cretaceous (post-tuscaloosa, undifferentiated)..._._ 1,155 Upper Cretaceous (Tuscaloosa formation)....._._., 371 Lower Cretaceous (?) (undifferentiated)._ Ba sement complex (undifferentiat ed ) ,055 2,225 2,720 3,875 4,246 4,348 4,375 Potential Water-Bearing Zones: Limestone._ _ Sand: fine to coarse-grained..... :...._. ~_: ,000 Limestone._ _.._.. 20a 1,200. Sand : fine to coarse-grained :....._.:_..:. ~._...:..:.._ 65 2,200 PIERCE COUNTY Location: 2.3 mi. northeast of 4th Land District Owner: No: 1 Donald Clark Driller: W. B. Hinton Drilled: May 1939 Offerman, Land Lot 332, ".: '.," Well No.: GGS Elev.: 75 Thickness Depth ri I. ~ Summary: No samples._ _ In Miocene (undifferentiated) _..._._...: ~.:. _..:..._._ Oligocene (undifferentiated) ~._,..._._. _ Upper Eocene (Ocala limestone) '.._....._..: Middle Eocene (Claiborne group, 'undifferentiated) : :._. :: 1,220 2,095 Lower Eocene (Wilcox group, undifferentiated) ,385

WELl. LOGS OF THE COASTAL PLAIN OF GEORGIA

GEORGIA STATE DIVISION OF CONSERVATION DEPARTMENT OF MINES. MINING AND GEOLOGY GARLAND PEYTON. Director THE GEOLOGICAL SURVEY Bulletin Number 70 WELl. LOGS OF THE COASTAL PLAIN OF GEORGIA by Stephen M.