24 GEOLOGY OF OHIO. 
SECTION OF ERIE CLAY. 
lo. Delta sand) iclay,(andworaveliiorce.ccs-acsteececee esac: lecee ees uaeen tte 25 ft. 
2) Laminated clay aboveilakelevieliyescccscesscerccccesnierscceceseotars 75 ft. 
3, Blue clay belowilake Vevel vrs eee. sccers cree eedee ee rence sheet anees 75 ft. 
AL {COATSE SAIN ARN Ie ee, Ne Se RENAN elec tetanic mentee 1 ft. 6 in. 
On lwe clayarene ASA ha AN ae | Sables ede AIA ae Sie eg 2d its 
Gs, Qramteksainn diaeerek ee ee eke a eae OL Ie uN ANU, Bat a at 10 in. 
fei DBM O Clays eee Mc Bens Ut uitule’s We ueueside carmen eturelcueceaerecereres 29 ft. Zin. 
8.) SQUICKSAT Ceres s reese cae eb sed scl eae Ses Mae SEC RCIe CDEC REeTeN eRe Ente 1 ft. 6 in. 
OF eo Blue rc layie nrc. Sabla cies Cheas crac suieecdac cose ae nue camamelomerectne meets Caeer oe 2 ft. 6 in. 
AOC) UT CKSRIVO Rae Re Sorse a ote Cae ee Re atric Aree ee EUS ARIE ST ee a il ft. 6s, 
TW BUS gla y reese eee icc ica se bao ee cons ccee canbe Mec ttumee an eevee ve wanes 30 it. 
iis BIWS) CLAVIER oF dice coe dee ele kaa rend aa aa as ct aoe eomence anions 5 ft. 
13.) Bluey iclay sen vee Benes Nees Se beek sada chess codeeaeuraec!veclessenctesesvetesttees 29 it: 
4) CoatsevoravelswithymUchyoasnune esc neccoeseccesceecdereete crocs oy lte 
Lo:.: Bimeyquicksam dy, oui hen eu os deucnetincm tetas cetlenteesioweneamet tes eoneites It Mb, 
MOM MBIUCCIAY, Sol c.svecseserc coer dccceeseecaeeien leviounsemeoeetonast nl ceseieecsansne 5 ft. 
WE COALSE BTAVElicicicccsscessc coe eccievcies cccclece settee nedlesoncessacameestesceemees 2 ft. 6 in. 
Sam Clay torshale rocket, voces cccenestocdecesctleceee erst ucceniveatwecereces 8 ft. 6 in. 
On the lake-shore, a mile distant from this locality, a carbonaceous 
stratum, with many logs of coniferous trees, lies on the surface of the 
Krie clay, and separates this from the Delta sand deposit above. 
An analysis made by Prof. Wormley of an air-dried specimen of the 
laminated portion of the Erie clay from this locality gave the following 
results : 
VEALED: Rade side bevecsiecestetanlcbecctaceacecuveayntctouaenc cued aeae te eon en tan ee satan ecu te asin 4.00 
DUT CIC HACTALE Cece Secas velateeceussboresiclocneunteseeeaece eee Cuene count ened eco tenn nes 59.70 
aX AUN COU Ge Wyse A Ne Rae ae ASL SLL EBLE URS Sa el SU A a Ne 14.80 
Prom,  SESOUMTORIGME ee ee icee shee hewetieeee secceuseeeae eet eee cmee aoe ee tee trone eee aaa 4.60 
IMS NCARDOMATCMR ee ecy caseveetec tae eee etanee Conus emaee ie accor PATE ES eeaee 8.90 
EASINESS a ere R ON ALA LS TELGUSE, cee water eS omlonite cco tr ecwa nace ci ataneeaeaee 5.14 
Fixedvalkaltea ieee besstec eee both Aanee hs ast sd wcilebieolestam ecient aeeratees 3.40 
100.54 
Along the summit of the watershed the Hrie clay is less distinctly 
shown than in most other parts of the State. Many patches of it 
remain, however, and it would seem to have been once much more 
widely spread than now. From this region it has unquestionably been 
generally washed away by the drainage from the glacier when it filled 
the lake-basin and terminated at its southern rim; and subsequently, 
when this rim was a chain of islands, washed—and in some instances 
swept over—by the waves of our great inland sea, the clay was still 
further removed, and kames and sand banks left in its place. In the 
southern portion of the glaciated area, the Hrie clay is pretty con- 
