1028 GEOLOGY OF OHIO. 
in Bloomfield township, in which a thickness of 6 feet is assigned to 
this seam. The section is an excellent one, and if fairly representing 
any large area, would ensure an excellent coal field. It is given below: 
(Shales: -s. cc ssesns sons csoneetcas (cases wense Monee een eran 4 teet. 
| Upper bench...... BAAS nh aiA AMAL On oy saa ae Ci 
M..K. coald; Bire-clayaspantingentieccsece cece sococeeeneee eee | Dia 
| Middle bench iar cmecctstsseteccscdeceeerca see nnene Sie 
| (Lower bench of seam wanting.) 
BOttoin, Cla Viescocccoaccocstessmeeee eon ee eee enn Saves 
SHal@icscurcotescancnsnaccusececscoccscmemenacecencertcemeres tires eee Ee Renn 3 & 
LEST TOTTUTT YE SFAGISTOTIG) 40540000000000000000060000000000 Sesuiecsceiccestecce 24 “ 
Upper bench... ....... RE SIGS tae etn 3 feet. 
LikKvicoalus Clay partin pisscitos: ccf. 4. 8 vss secu coasvatcousseccnents 0 “ 2 inches. 
ThOWe DENCH eh... Socticesecuceccece caer ener tee 1 hyseetts 
IBOttOma Clay ns cesadcreceesceceteesecatecensweteee Matsaccenbane nasties 13 “ 
SandsStONe n.csccscieteeesciesceceatasecseseeclesses taut Mates boeeee. ieaean ene toh 
Bire-Clavpasaeessticcatiees sce ai eaeaealustieekoceek mee orececeaee Seen BY ss 
ThIMESCON CONG sessecoas axbieid occ eo sceee ceded clawcoe te <mesee ene eee aemee eee anes 
Ferritervous limestone ci ccste cn ccck ovoecocuece cones ae ceonw aceon haeeceee (poe 
Black ‘Slate seisscsgecesseeeed an cecedessscocsecesevessaccescscet meee ee earn 13 “ 
( Upper benchinieiss.\0.2c5.ce secs eee asec 13 feet. 
|; Clay parting: & cc recoscces pense sec aneeets Orsi erde Byers 
Upper Clarion coal{ Middle bench......... Uaatee seadcecteetecse ts Ie nee 
[ePartin gi ocaccuusccnsccctcrcm ene eee ress One el ° 
(hower DeNnCh: 28 aee.ereecen eee 0 “ 10 4 
1BYeXA roy 0Cy (6) Eh iZoq neon obddbS Beonb6 Hododo0d 9644690 660403002500000800860000000 0066 Chios 
No other section has been reported in which the Sheridan seam 
shows a thickness of 6 feet in this county, but just beyond the county 
line, in Sections 18 and 19, Huntington township, Gallia county, two 
banks are open, about one mile apart, that show nearly the same thick- 
ness as that given, but the structure is seen to be different. 
These are known as the Deckard and Calhoun banks, respectively. 
The structure is as follows: 
Sandstone roof. 
Clay. (teehee Ja CoGhee also FELERD ae AERIAL RN ge aE OE SE 3 feet 
(ay: UR eRe OS SHAPER RCO COn NOOECOCHOSREBOD Ck De COdER EoD ic ocR ROG dcdod. OCOD dadgodsdd008000000 12 phe 
(OE Araeee Be eceGcn coc ee ccr once boo Ss ca eenCe cece cabuKs CoobuseguoGudcabdddod 60808 24 * 
COLO  seaenacono en ocbccbee a od038 COCBIIH Se 5000 GN Ca 0nOT HOEGOO FOSOdONIITIIIOGO0 660600000000 365. 
The Ferriferous limestone is exposed near Deckard’s bank, and the 
interval from top of limestone to top of coal is 63 feet. The section 
is as follows: 
