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Page 5914, results 147826 - 147850

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Geology of the Cupsuptic quadrangle, Maine
David S. Harwood
1966, Open-File Report 66-57
The Cupsuptic quadrangle, in west-central Maine, lies in a relatively narrow belt of pre-Silurian rocks extending from the Connecticut River valley across northern New Hampshire to north-central Maine. The Albee Formation, composed of green, purple, and black phyllite with interbedded-quartzite, is exposed in the core of a regional anticlinorium overlain...
Geology of the Cerro Summit quadrangle, Montrose County, Colorado
Robert G. Dickinson
1966, Open-File Report 66-24
The Cerro Summit quadrangle covers 58 square miles of dissected plateau on the south flank of the Gunnison uplift in southwestern Colorado. It lies east of the Uncompahgre River valley and south of the Black Canyon of the Gunnison River. Rocks dip gently in most of the quadrangle, but they...
Road log for southern Santa Rita Mountains, Santa Cruz and Pima Counties, Arizona
Harald Drewes
1966, Open-File Report 66-29
Geologic mapping of the Mount Wrightson quadrangle has been completed recently by the U.S. Geological Survey. As a result, I am able to present a summary (table 1) of the rocks exposed and to indicate their ages and relations with each other. The Mesozoic rocks are emphasized because the local...
Seismic refraction surveys in the vicinity of Eagle City, Clark County, Ohio
Jerry H. Hassemer, Joel S. Watkins, Norman G. Bailey
1966, Open-File Report 66-58
As part of a continuing program to define the thickness and extent of water-bearing sand and gravel deposits in southwestern Ohio, the U.S. Geological Survey, in cooperation with the Ohio Division of Water, in the summer of 1964 completed a seismic refraction survey in the vicinity of Eagle and Tremont...
Mines and prospects, Idaho Springs district, Clear Creek and Gilpin counties, Colorado -- Descriptions and maps
Robert Hadley Moench, Avery Drake Jr.
1966, Open-File Report 66-87
The Idaho Springs mining district forms an important segment of the Front Range mineral belt, a northeast-trending zone of coextensive intrusive rocks and hydrothermal ore deposits of early Tertiary age. This belt, which is about 50 miles long, extends from the region just west of Boulder southwestward across the Front...