Ohio archæological and historical publications . rnOhio, and with others from intervening points. Anothersign of glacial action consists in the striae or scratches which,all over this region, characterize both the stones includedin the till and the surface of the underlying rock. The special feature, however, to which our present subject i j6 Ohio ArcJiceological and Historical Quarterly. would call attention, is found in the terraces which every-where mark the streams flowing southward from the glaciatedarea. Almost without exception, the streams flowing south-ward from this area show marks o
Ohio archæological and historical publications . rnOhio, and with others from intervening points. Anothersign of glacial action consists in the striae or scratches which,all over this region, characterize both the stones includedin the till and the surface of the underlying rock. The special feature, however, to which our present subject i j6 Ohio ArcJiceological and Historical Quarterly. would call attention, is found in the terraces which every-where mark the streams flowing southward from the glaciatedarea. Almost without exception, the streams flowing south-ward from this area show marks of former floods from fiftyto a hundred feet higher than any which now occur. Graveldeposits from fifty to a hundred feet higher than the presentflood-plain line the valley of everyone of these streams, notonly where they lie within the glaciated region, but throughmuch of their course after they have emerged from theglaciated into the unglaciated region. In our own Statethese terraces are specially observable on the followingstreams and places:. PLATE I. The shaded portion indicates the glaciated area of Ohio. Middle fork of Beaver, New Lisbon ; Big Sandy Creekreast branch, East Rochester; Nimishillen, Canton; Tusca- The Glacial Period and Archoeology in Ohio. 177 rawas, Bolivar; Sugar Creek, Beech City; Killbuck, Millers-burg; Mohican, Jefferson township; Owl Creek, Millwood;Rocky Fork, Wilkins Run; Licking River, Newark; Jona-than Creek, Thorn township, Perry county; Hocking River,Lancaster; Clear Creek, Clearport, Madison township, Fair-field county; Salt Creek, Adelphi; Scioto River, Greentownship, Ross county; Paint Creek, Twin township, Rosscounty, and throughout the whole lower course of both theLittle and the Great Miami. Second. It is in terraces of this description that the so-called palaeolithic implements have been found; and asthere can be no question that this class of terraces wasformed by the floods which mark the closing portion of theglacial period, the occur
Size: 1531px × 1633px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorohiostat, bookcentury1800, bookdecade1880, bookyear1887
