GEOLEX database Geologic Unit: Lowville Usage: Lowville Limestone of Black River Group (NY*,PA*,VT) Lowville Limestone (MD*,VA*,WV*) Lowville Formation of Black River Group (NY,VT) Age: Ordovician, Middle* Geologic Province: Appalachian basin* New England province Adirondack uplift Areal Extent: MD* NY* PA* VA* VT WV* Type Locality: Exposures at Lowville, Lewis Co., NY (Clarke and Schuchert, 1899). Subunits: Leray Limestone Member (NY*); Barriefield Hill Metabentonite (NY), Pencil Cave Metabentonite, Mud Cave Metabentonite, and Glenburnie Bed (NY), Sawyer Bay Member (VT,NY), House Creek Member (NY) Unit Name History: Named (Clarke and Schuchert, 1899). Assigned to Black River group and assigned Leray member (Ruedemann, 1910). Overview (Butts, 1940). Suggested restriction (Cooper, 1956). Extended into VT (Doll and others, 1961). Revised, new beds assigned (Conkin, 1991). Sawyer Bay Member named (Bechtel and Mehrtens, 1995). Note: If you need more information, please contact Nancy Stamm (nstamm@usgs.gov). Asterisks (*) indicate usage by the U.S. Geological Survey. Other usages by state geological surveys. "No current usage" implies that a name has been abandoned or that it has fallen into disuse. Former usage and, if known, replacement name given in parentheses (). Slashes (/) indicate unit name usage violates the 1983 North American Stratigraphic Code. This violation may be explained within brackets ([ ]). U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA URL http://ngmdb.usgs.gov/ngmdb/ngm_catalog.ora.html Database project personnel Last modified: 7-Jan-2007