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Page 5970, results 149226 - 149250

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Preliminary overview map of volcanic hazards in the 48 conterminous United States
D. R. Mullineaux
1976, Miscellaneous Field Studies Map 786
Volcanic eruptions and related phenomena can be expected to occur in the Western United States, and in some places are potentially hazardous enough to be considered in longe-range land-use planning. But the immediate risk from volcanic hazards is low because eruptions are so infrequent in the conterminous United States that...
Crossbedding of the Potomac Formation in Fairfax County, Virginia
Gordon Whitney Weir
1976, Open-File Report 76-193
Crossbedding in sandstone units is the most conspicuous sedimentary structure of the Potomac Formation in Fairfax County, Virginia. Most sets of crossbeds are a few feet thick and several feet wide and tens of feet long. Trough sets are dominant, but planar sets are also common. Dip directions of crossbeds...
Geologic map of the McCarthy Quadrangle, Alaska
E.M. MacKevett Jr.
1976, Miscellaneous Field Studies Map 773-A
Diverse Quaternary surficial deposits are abundant in the quadrangle. Quaternary processes of deposition and erosion strongly influenced the landscape, producing many of the scenic and physiographic features. ...
Mineral deposits and occurrences in the McCarthy Quadrangle, Alaska
E.M. MacKevett Jr.
1976, Miscellaneous Field Studies Map 773-B
The McCarthy quadrangle contains numerous and diverse mineral deposits in various geologic settings. Copper is the dominant mineral commodity, both historically and in terms of potential future production. Gold and silver are the only other metals that have been produced. The metalliferous deposits are concentrated in a northwest-trending belt along...