Author: Geological Survey (U.S.) / Temporal Coverage: From 230 to 570 million years ago - Yale University Library GeoBlacklight Search Results

Start Over Author Geological Survey (U.S.) Temporal Coverage From 230 to 570 million years ago

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. Paleocurrent maps for the Upper Devonian and Lower Mississippian Endicott Group, Brooks Range, Alaska [cartographic material]

1980. 2002-06-01T04:00:00Z. 2023-01-06T04:04:24Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Alaska and Alaska. Paleozoic, Devonian, Mississippian, and From 230 to 570 million years ago.