GEOLEX database Geologic Unit: Lee Usage: Lee Gneiss (MA*) Lee Quartz Diorite (CT) Age: Precambrian* Proterozoic, Middle* Geologic Province: New England province* Areal Extent: CT MA* Type Locality: Exposure in East Lee, Berkshire Co., western MA (Emerson, 1898). Unit Name History: Named Lee quartz diorite (Emerson, 1898). Revised to Lee Gneiss; Age modified (Ratcliffe and Hatch, 1979). MA State Geol. Map usage (Zen and others, 1983). 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