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Publication Extents

Not all publications have extents, not all extents are completely accurate
Geology of the Antler Peak quadrangle, Nevada
Ralph Jackson Roberts
1949, Open-File Report 49-47
The Antler Peak quadrangle is bounded by the meridians 117° and 117°15' and the parallels 140°30' and 40°45', in north-central Nevada. It is in the Basin and Range province and includes Battle Mountain, a north-trending range 18 miles long and 114 miles wide. The range is bounded on the east...
Petrology and habit of some diabase sheets in southeastern Pennsylvania
Preston Enslow Holtz
1949, Open-File Report 49-33
Small masses of granophyre occur in the upper part of diabase intrusions southeastern Pennsylvania. Diamond drill hole exploration of magnetite deposits near Dillsburg revealed a body of diabase beneath the sedimentary rocks in which the deposits occur. The drill core revealed a complete gradational sequence downward from a diabase chill...
The Magnet Cove Rutile Company mine, Hot Spring County, Arkansas
Douglas M. Kinney
1949, Open-File Report 50-6
The Magnet Cove Rutile Company mine was mapped by the U.S. Geological Survey in November 1944. The pits are on the northern edge of Magnet Cove and have been excavated in the oxidized zone of highly weathered and altered volcanic agglomerate. The agglomerate is composed of altered mafic igneous rocks...
Interpreting ground conditions from geologic maps
Water Resources Division, U.S. Geological Survey
1949, Circular 46
Intelligent planning for heavy construction, water supply, or other land utilization requires advance knowledge of ground conditions in the area. It is essential to know:the topography, that is, the configuration of the land surface;the geology and soils, that is, the deposits that compose the land and its weathered surface; andthe...