Spatial Coverage: Middle West / Year: 1968 - Yale University Library GeoBlacklight Search Results

Start Over Spatial Coverage Middle West Year 1968

1. Transcontinental geophysical survey (35°-39° N) bouguer gravity map from 87° to 100° W longitude / [cartographic material]

1968. 2012-10-10T14:50:06Z. 2013-03-18T22:22:43Z. Geological Survey (U.S.). Dept. of the Interior, U.S. Geological Survey. English. Public. Middle West and Great Plains.

2. Transcontinental geophysical survey (35°-39° N) geologic map from 87° to 100° W longitude / [cartographic material]

1968. 2012-10-10T14:33:19Z. 2021-09-17T21:32:52Z. Willden, Ronald (Charles Ronald), 1929-. U.S. Geological Survey. English. Public. Middle West and Great Plains.

3. Transcontinental geophysical survey (35°-39° N) seismic refraction profiles of the crust and upper mantle from 87° to 100° W longitude / [cartographic material]

1968. 2012-10-10T14:13:35Z. 2013-03-18T22:22:42Z. Warren, David H. U.S. Geological Survey. English. Public. Middle West and Great Plains.

4. Transcontinental geophysical survey (35°-39°N) magnetic map from 87° to 100° W longitude / [cartographic material]

1968. 2012-10-10T13:48:26Z. 2013-03-18T22:22:41Z. Zietz, Isidore, 1919-. Dept. of the Interior, U.S. Geological Survey. English. Public. Middle West and Great Plains.

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