The Glacial Geology of New York City and Vicinity, P
Sanders, J. E., and Merguerian, Charles, 1994b, The glacial geology of New York City and vicinity, p. 93-200 in A. I. Benimoff, ed., The Geology of Staten Island, New York, Field guide and proceedings, The Geological Association of New Jersey, XI Annual Meeting, 296 p. John E. Sanders* and Charles Merguerian Department of Geology 114 Hofstra University Hempstead, NY 11549 *Office address: 145 Palisade St. Dobbs Ferry, NY 10522 ABSTRACT The fundamental question pertaining to the Pleistocene features of the New York City region is: "Did one glacier do it all? or was more than one glacier involved?" Prior to Fuller's (1914) monographic study of Long Island's glacial stratigraphy, the one-glacier viewpoint of T. C. Chamberlin and R. D. Salisbury predominated. In Fuller's classification scheme, he included products of 4 glacial advances. In 1936, MacClintock and Richards rejected two of Fuller's key age assignments, and made a great leap backward to the one-glacier interpretation. Subsequently, most geologists have accepted the MacClintock-Richards view and have ignored Fuller's work; during the past half century, the one-glacial concept has become a virtual stampede. What is more, most previous workers have classified Long Island's two terminal- moraine ridges as products of the latest Pleistocene glaciation (i. e., Woodfordian; we shall italicize Pleistocene time terms). Fuller's age assignment was Early Wisconsinan. A few exceptions to the one-glacier viewpoint have been published. In southern CT, Flint (1961) found two tills: an upper Hamden Till with flow indicators oriented NNE-SSW, and a lower Lake Chamberlain Till with flow indicators oriented NNW-SSE, the same two directions of "diluvial currents" shown by Percival (1842).
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