Subject: Geology, Stratigraphic / Year: 1950 - Yale University Library GeoBlacklight Search Results

Start Over Subject Geology, Stratigraphic Year 1950

1. Lake Simcoe District, Ontario Pleistocene and recent deposits and bedrock outcrops / [cartographic material]

1950. 2012-07-25T14:12:39Z. 2012-07-25T14:43:24Z. Deane, R.E. Canada Dept. of Mines and Technical Surveys, Geological Survey of Canada. English. Public. Ontario and Lake Simcoe Region. Pleistocene and Holocene.

2. Stratigraphy of the Upper Devonian Wiscoy sandstone and the equivalent Hanover shale in western and central New York

1950. 2018-01-23T16:27:13Z. 2018-01-23T16:27:13Z. Pepper, James F. U.S. Dept. of the Interior, Geological Survey. English. cartographic image. Public. New York (State), New York (State), Western, and New York, Western. Devonian and From 345 to 405 million years ago.