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From the site: "Measurements of the gravitational field vary slightly from place to place due to the composition and structure of Earth's crust. This digital grid describes the...
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View within SubmissionGathering Resources...From the site: "Data generated by aerial sensing of radiation emanating from the earth's surface provides general estimates of the geographic distribution of Uranium, Thorium,...-
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View within SubmissionGathering Resources...From the site: "Measurements of the gravitational field vary slightly from place to place due to the composition and structure of Earth's crust. This digital grid describes the...-
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View within SubmissionGathering Resources...From the site: “The Geologic Atlas of the United States is a set of 227 folios published by the U.S. Geological Survey between 1894 and 1945. Each folio includes both...-
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View within SubmissionGathering Resources...From the site: "Airborne measurement of the earth's magnetic field over all of North America provides gridded data describing the magnetic anomaly caused by variations in earth...-
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View within SubmissionGathering Resources... -