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164565 results.

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Relationships of calcium carbonate to lithology and vanadium-uranium deposits in Salt Wash sandstone of southwestern Colorado
Norbert Lee Archbold
1956, Open-File Report 56-2
This study was made to determine whether any relationship exists between lithology or vanadium-uranium deposits and calcium carbonate content in the Salt Wash member of the Morrison formation of Jurassic age. Results indicate that altered gray-green mudstone contains less carbonate than does unaltered red-brown mudstone. No significant difference exists between...
Geology and ore deposits of the Monument Valley area, Apache and Navajo Counties, Arizona
Irving Jerome Witkind
1956, Open-File Report 57-124
In 1951 the U.S. Geological Survey undertook a program of uranium investigations in Apache and Navajo Counties, northeastern Arizona. The work had three major objectives. The first was to accumulate data basic to an understanding of the regional geology. The second was to appraise the Triassic strata as host rocks...
Geology and petrology of the Lava Mountains, San Bernardino County, California
George I. Smith
1956, Open-File Report 56-109
The Lava Mountains are a range of low mountains along the northern edge of the Mojave Desert, California. The pre-Tertiary rocks consist of a few swell pendants of metamorphic rocks in Atolia quartz monzonite. Overlying these are small patches of volcanic and sedimentary rocks, probably Tertiary, which project into the...
Gravity survey of Ogden Valley, Weber County, Utah
Samuel Woods Stewart
1956, Open-File Report 56-112
Ogden Valley is a northwest trending valley within the Wasatch Mountains of north-central Utah. On the basis of geological evidence Ogden Valley is believed to be structurally controlled by normal faults along both the east and west margins. Gravity measurements in the valley definitely indicate a fault with at least...
Annotated list of plants of Arctic Slope of Alaska
Lloyd Anthony Spetzman
1956, Open-File Report 56-110
The accompanying 5-page list of 439 higher plants was compiled as part of a manuscript to be included in a series of professional papers on Naval Petroleum Reserve No. 4 and adjoining areas.This check list describing the distribution, abundance, flowering period, plant growth on various rook types, and other habitat...
Preliminary report on the geology of San Nicolas Island, California
J. G. Vedder, J.E. Schoelhamer, M.C. Israelsky
1956, Open-File Report 56-126
The U. S. Geological Survey, at the request of the Director of Naval Petroleum Reserves, undertook a geologic investigation of San Nicolas Island, Ventura County California, in the spring of 1955. This preliminary report summarizes present knowledge concerning the general stratigraphy and structure of the island. Additional surface and underwater...
Geology of Devils Tower National Monument, Wyoming
Charles Sherwood Robinson
1956, Bulletin 1021-I
Devils Tower is a steep-sided mass of igneous rock that rises above the surrounding hills and the valley of the Belle Fourche River in Crook County, Wyo. It is composed of a crystalline rock, classified as phonolite porphyry, that when fresh is gray but which weathers to green or brown....