Subject: Shale / Format: cartographic image - Yale University Library GeoBlacklight Search Results

Start Over Subject Shale Format cartographic image

1. Maps showing areal extent of selected Paleozoic shales in the northern midcontinent, U.S.A.

1992. 2002-06-01T04:00:00Z. 2016-05-17T16:22:16Z. Geological Survey (U.S.). U.S. Geological Survey ; For sale by Map Distribution. English. cartographic image. Public. Middle West and Middle West. Paleozoic and From 230 to 570 million years ago.

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.