USGS Visual Identifier

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GEOLEX database

Geologic Unit: Hanover

Publication:
Baird, G.C., and Lash, G.G., 1990, Devonian strata and 
   paleoenvironments; Chautauqua County region, New York State, 
   IN Lash, G.G., ed., Western New York and Ontario; field trip 
   guidebook: New York State Geological Association Guidebook, 
   62nd Annual Meeting, Fredonia, NY, no. 62, p. Sat A1-A46.
Usage in Publication:
Hanover Shale Member

Modifications: Geologic Province: Dominant Lithology:
 Age modified
 Overview
 Appalachian basin
 

Summary:
Hanover Shale Member of Java Formation is uppermost unit in area containing fossils of the Frasnian Stage. Unit is 28 m thick and composed primarily of green-gray mudstone with accessory discrete thin black shale beds and zones of small calcareous, phosphatic and pyritic nodules. Usually very bioturbated, but contains few shelly fossils. The Hanover changes eastward into siltier, upslope deposits of the Wiscoy Member southeast of the type section at Java Village. Fossils include a mixture of benthic and pelagic fossils, goniatites and carbonized driftwood fragments. Small rugose corals and crinoid ossicles also occur. The Frasnian-Famennian stage boundary position has been tentatively placed several meters below the top of this unit by Kirchgasser (pers. comm. 1989).
Source: GNU records (USGS DDS-6; Reston GNULEX).


Publication:
de Witt, Wallace, Jr., Roen, J.B., and Wallace, L.G., 1993, 
   Stratigraphy of Devonian black shales and associated rocks 
   in the Appalachian basin, IN Roen, J.B., and Kepferle, R.C., 
   eds., Petroleum geology of the Devonian and Mississippian 
   black shale of eastern North America: U.S. Geological Survey 
   Bulletin, 1909-B, p. B1-B57.
Usage in Publication:
Hanover Shale Member*

Modifications: Geologic Province: Dominant Lithology:
 Areal limits
 Appalachian basin
 

Summary:
Hanover Shale Member of the Java Formation extended from southwestern NY into western PA, eastern OH, western WV, eastern KY, and the subsurface of western VA, and northeastern TN.
Source: GNU records (USGS DDS-6; Reston GNULEX).