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184904 results.

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Page 6576, results 164376 - 164400

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Publication Extents

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Areal geology of the western Mojave Desert, California
Thomas W. Dibblee Jr.
1967, Professional Paper 522
This report and map represent part of a geologic investigation by the U.S. Geological Survey of the known and potential deposits of borate minerals in the southern California desert regions. The primary purpose of this report and the geologic map (pl. 1) is to provide a geologic background for the...
Paleotectonic investigations of the Permian system in the United States
Edwin Dinwiddie McKee, Steven S. Oriel, Henry L. Berryhill Jr., Eleanor J. Crosby, Donald A. Myers, George H. Dixon, Marjorie E. MacLachlan, Melville R. Mudge, Edwin K. Maughan, Richard Porter Sheldon, Earl R. Cressman, Thomas M. Cheney, Vincent E. McKelvey, Walter E. Hallgarth, Keith B. Ketner
1967, Professional Paper 515
No abstract available....
Geology of the Arnold Pond quadrangle, Oxford and Franklin Counties, Maine
David S. Harwood
1967, Open-File Report 68-121
The Arnold Pond quadrangle lies on the northwest limb of the boundary Mountain anticlinorium (Albee, 1961), a major northeast-trending fold that extends across northern New Hampshire, west-central Maine and adjacent Quebec. The anticlinorium is defined in a regional sense by the Taconic unconformity separating pre-Silurian rocks from the rocks of...
Petrography of the Athol quadrangle, Massachusetts
Anita Louise Mook
1967, Open-File Report 68-185
The Athol quadrangle of north-central Massachusetts is underlain by high-grade metamorphosed amphibolites, gneisses, schists, calc-silicate gneisses, quartzites, and orthogneisses. These include the Monson Gneiss of Middle Ordovician or older age, the Partridge Formation of Middle Ordovician age, and the Middle to Late Devonian Hardwick Granite of the New Hampshire Plutonic...