BuUetin of Scientific Laboratories of Denison University 



Vol XIII. Article V September. 1907. 



THE (;L.\C]AL IJAAl AT 11AX()\"1£R, OllTO. 



Frank Carney. 



Thesis: The glacial dam at Hanover consist-s of peculiarly 

 tied-together drift loops made by .succes.sive lialt.s of a retreating" 

 dependency of the Scioto lllinoian lobe. 



INTRODUCTION. 



Leverett call.s attention to the mass of drift which blocks the 

 east-west valley at Hanover.' Other writers in discussing drain- 

 age features have alluded to the same phenomenon.' Wright 

 does not include this part of Licking County within the drift.' 

 Leverett's map ( i'^ig. 1) includes within the drift all the county 

 save a narrow strip, convex towards the ice, along its eastern 

 side.' 



STRATIGRAPHY. 



In this area the Alissippian and Pennsylvanian formations 

 from the Cuyahoga to the Sharon of the Pottsville are exposed. 

 The lowest of these formations has been noted in but two localities. 

 In the region under discussion the Black Hand formation was 

 first studied, and named, by Hicks.' In east- west extension from 

 Claylick to Toboso, and northward at least through Perry Town- 

 ship," this formation is prevailingly coarse, often conglomeritic ; 

 westward about Xewark' and Cranville it is rather coarse in 



• Frank I.everett, "Glacial Foimation,^ of the Eric ami Ohio Baninii," XI.I 

 Monograph, I'. S. Geological Sui-v-ey (1902), pp. 1.5.5. 2<)0. 280. 



= W. O. Tight, Bull. 8ci. Lab. Deniwri Univ., Vol. VIII (1S04), pp. ?ir,-C,?,. 



W. P.. Clark, Ihid., vol. XII (1902), pp. 1-10. 

 « (!. F. Wright, "The Glacial Boiindar.v in Oliid." dcohiii. Siirrni <,f Oliiii, 

 Vol. V (1884), p. 755. 



• Loc. lit., plate XI IT. 



■'• L. K. Hicks. .1)//. .luiitiKil ii{ ftcicuri-. ?A Series. Vol, XVI ilSTSI. ])p. 

 216-217. 



'• F. Carney. "Tlie Geology of I'erry 'rownship." Hull. Sri. Liih. I>< iii.-<uii Uni- 

 versity, Vol. XIII (1900), p. 120. 



• C. S. Prosser, American Geoli,(iix1, Vol. XXXIV (1904), p. .'559. 



