File:Annual report (1913) (14780110891).jpg

Identifier: annualreport671913newy (find matches)
Title: Annual report
Year: 1902 (1900s)
Authors: New York State Museum
Subjects: New York State Museum Science Science
Publisher: Albany : University of the State of New York
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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ge of intermingled shale and mud layers, but isthe bed from which almost all the great quantities of gypsumquarried in the county have been obtained. The large and oldquarries, some of which were operated more than a century ago,at Lyndon, between Lyndon and Jamesville, and those in the vicin-ity of Fayetteville and Manlius are all at this horizon. It containsa thin layer of salt at Lyndon. Fiddlers Green limestone, immediately underlying the upper gyp-sum bed, varies from 20 to 40 feet in thickness and is a persistentbed across the quadrangle and beyond. It is a thin-bedded lime-stone dolomitic in character and, being more resistant than the over-lying gypsum and the underlying shales, has a strong topographicrelief, so that the surface exposures are much greater than anyother portion of the entire Camillus group. The weathered surfaceof some of the layers is characterized by many sharp narrow groovesas though made by a knife, frequently forming two series cutting rQ u o <u U PQ s
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THE GEOLOGY OF THE SYRACUSE QUADRANGLE 13 the surface into rhomboidal figures. Some of the layers are char-acterized by great numbers of the small ostracod Leperditias c a 1 a r i s . The limestone was quarried many years ago in the hill a halfmile southeast of the university campus, and several other placesin the region, for use in foundations, but its use has been verylimited because as a building material it is inferior to the limestonesin the overlying strata. It has been used locally in large quantitiesfor constructing stone fences where the principal object was prob-ably to rid the surface of the stone to make the land tillable. Good exposures of this rock may be seen in the area north of theSplit Rock quarries, in Chryslers glen, in the Elmwood valley, inthe rock cut on the Delaware, Lackawanna and Western Railroadsouth of Syracuse, at the east end of the railway channel, over largeareas between the railway channel and the city, between Lyndonand the gypsum quarries and nearly

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