STATE GEOLOGIST. 133 
Aside from the two limestones and the oil sand, the underground 
strata are not well marked or conspicuous over a wide area. They are 
composed of shales and sandstones, the former greatly predominating. 
One of the best-known of these is a bed of red shales having a thickness 
near Joy P. O. varying from 15 to 40 feet, and known among the drillers 
as the “Big red.”’ It lies above the Ames limestone, as shown by logs which 
follow. Above the “Big red” are found large beds of shales, sandstones, 
limestones and the Federal creek coal, to which reference has already 
been made. None of the latter, however, can be traced over an extensive 
area. The coal seam is lost almost as soon as the driller moves east from 
the Federal creek valley, while the limestones are not continuous like the 
Ames or Cambridge. 
The succession of strata is shown by the following well records: 
Well on farm of Lewis Morris, section 24, Ames township, Athens 
county. Log furnished by E. M. Woodin: 
Thickness of Total 
stratum. thickness. 
Feet. Feet. 
Gravel lame per wert nye ae: «ates rte t  ea 10 10 
DMTVOS  VHESEOWE::. CASO OO IOS OA ae 2 02 
WANT OM SAIN S TOM Cpa arcicis teres cspevere caves ete neceaie lois 12 24 
Bemisia GStierare eats nec a eames eee ee ee ace 20 44 
Rede Shale simran tts as ele ies ol site aoe esis e atest 20 64 
Bhwepeshalesmeestiirs sake ee wee nln lee fe ala 115) 79 
J RASLOL SU MNEEY) WEN y imate ie iS RAC RA a I MR Usa ets) 84 
JEU SM AEH KES eee Bs hoes i 10 94 
Sandy shale, place of First Cow Run sand.. 33 LAN 
Cambridge lime. 
The following is the log of gas well No. 1 on the Dale farm, Homer 
township, Morgan county, and was furnished the survey by G. A. Faires, 
Superintendent of the Reusen-Shedd Company. The record is more in- 
teresting than most others obtained in this field, since it extends to the Salt 
sand : 
Thickness of Total 
stratum. thickness. 
Feet. Feet. 
FVECBS Wale serstery- aie etatt a ater eee stone tare ies 29 29 
ES IWORISI ALE Steere wernt se Pye iy ect lahore estes 3 32 
EVe dish alesis eran etn crete enor aes cath, 10 42 
SW OMSIT AIS Her I or yore ey Uk Pee Heh es 30 72 
Dankesan dee Oe). cee kee Mi AGAuh StS LEWAeiye sel sb) ai ov de 5 17 
IDE NOS SEN EG) iarcin ido Shogo LLG OLGA ON TOR AE IT OEE iL 78 
(CIEIAYZ SEE OUGE G5 ee Bice Sea nee Cra NER IC a ea 9 87 
UPSE COW: JUD STU 6 b8% Sonido oo boob oU OKs 20 107 
Soapstone tandushalesia.s ns os aes coe ee 58 165 
(OMEN 8 6B siotalo-o cr OHI RCS AOR Secs ic aire a 2 167 
Soapstonemandmshallesaremmme icine ie ctielor cere 151% 18214 
Te) AGES ary erent cleonohetnisesiele/ ciao tec erevecets Sie es 3 185% 
SOapstomemamadmshaleshoy mea eis cic < see ¢ 2316 205 
