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Publication Extents

Not all publications have extents, not all extents are completely accurate
Decollement in the southern Allegheny Plateau of Pennsylvania
Howard A. Pohn, Terri L. Purdy
1979, Open-File Report 79-1321
Recent field investigations in the Allegheny Plateau north of Williamsport, Pennsylvania have shown the presence of both southward dipping, low-angle thrust faults translated to the north and northward dipping back or antithectic thrusts translated to the south at the leading (north) edge of Barclay syncline. The presence of these thrusts,...
Statistics and earth sciences; a challenge for the 80's; the geologists viewpoint
Richard B. McCammon
1979, Open-File Report 79-1245
It used to be that university students took up geology because they were attracted to the outdoors. This attraction developed perhaps because of a weekend field trip, or a summer field camp, or, for the lucky ones, a field season with an oil company. Whatever the reason, to be a...
K-Ar age of alunite alteration at Red Mountain, Lake City area, western San Juan Mountains, Colorado
Harald H. Mehnert, John F. Slack, Gerald T. Cebula
1979, Open-File Report 79-1642
The San Juan Mountains of southwestern Colorado are famous for rich vein deposits of base and precious metals and for patterns of conspicuous hydrothermal alteration. Areas of acid-sulfate alteration, characterized by extensive base leaching of volcanic rocks or hypabyssal plutons, are of current interest because of their local association with...
Tree rings as indicators of hydrologic change in the Great Dismal Swamp, Virginia and North Carolina
Richard L. Phipps, D.L. Ierley, C.P. Baker
1979, Water-Resources Investigations Report 78-136
Analyses of tree rings of large, canopy loblolly pines (Pinus taeda L.,) growing near a drainage ditch in the Great Dismal Swamp have indicated that the tree rings are datable and hydrologically (climatically) sensitive. Climatic and prior growth factors in regression explained 87 and 71 percent of the variance of...
Seepage study for unnamed tributary to Alder Creek, Stevens County, Washington
P.J. Carpenter, B. W. Drost
1979, Water-Resources Investigations Report 79-33
Analysis of seepage measurements in the Alder Creek basin, Stevens County, Wash., shows that approximately 50% of 0.2 cubic foot per second taken from an unnamed tributary and used for the 1978 irrigation season would have reached Alder Creek as surface flow. Differences in discharge and specific conductance are explained...
Makah Formation--a deep marginal basin sedimentary sequence of Late Eocene and Oligocene age in the northwestern Olympic Peninsula, Washington
P. D. Snavely, A. R. Niem, N. S. MacLeod, J. E. Pearl, W. W. Rau
1979, Open-File Report 79-581
The Makah Formation of the Twin River Group crops out in a north-west-trending linear belt in the northwesternmost part of the Olympic Peninsula, Wash. This marine sequence consists of 2,800 meters of predominantly thin-bedded siltstone and sandstone that encloses six distinctive members. The named members include four packets of thick-bedded...
Stormwater-runoff data for a multifamily residential area, Dade County, Florida
Jack Hardee, Robert A. Miller, Harold C. Mattraw Jr.
1979, Open-File Report 79-1295
Rainfall, stormwater discharge, and water-quality data for a multifamily residential area in Dade County, Florida, are summarized in this report. Loads for 19 water-quality constituents were computed for runoff from 16 storms from May 1977 through June 1978. The 14.7 acre basin contains apartment buildings with adjacent parking lots. The...
Petroleum source potential of rocks dredged from the continental slope in the eastern Gulf of Alaska
George Plafker, George Edwin Claypool
1979, Open-File Report 79-295
A bedrock dredging program by the R/V Sea Sounder in 1977 and 1978 along the continental slope in the eastern Gulf of Alaska revealed a previously unknown Eocene sedimentary sequence that includes argillaceous rocks with favorable petroleum source rock characteristics. Seven of 36 dredge hauls that sampled outcrop contain argillaceous...