The Nature and Use of Copper Reserve and Resource Data
Dennis P. Cox, Nancy A. Wright, George J. Coakley
1981, Professional Paper 907-F
Copper reserve, resource, and production data can be combined to produce disaggregated resource estimates and trends and, when combined with demand forecasts, can be used to predict future exploration and development requirements. Reserve estimates are subject to uncertainties due mainly to incomplete exploration and rapidly changing economic conditions. United States' reserve...
Catalog of earthquakes along the San Andreas fault system in central California, July-September 1977
S.M. Marks, L. Fluty
1981, Open-File Report 81-462
Numerous small earthquakes occur each day in the Coast Ranges of central California. The detailed study of these earthquakes provides a tool for gaining insight into the tectonic and physical processes responsible for the generation of damaging earthquakes. This catalog contains the fundamental parameters for earthquakes located within and adjacent...
Areal and textural distribution of particulate gold in sediments from Bluff Beach, Alaska
Gretchen Luepke, Kam Wo Leong
1981, Open-File Report 81-1085
Flood of May 5 and 6, 1981, Mobile, Alabama
C. O. Ming, G. H. Nelson
1981, Open-File Report 81-1054
Heavy and intense rainfall in the late evening and early morning hours, May 5 and 6, 1981, caused widespread flooding along streams and low-lying areas in the port city of Mobile, Ala. More than 12 inches of rain fell between 6 p.m. May 5, and 3 a.m. May 6. Damage...
Single-channel seismic-reflection profiles and sidescan-sonar records collected on Georges Bank
David C. Twichell
1981, Open-File Report 81-438
Subbottom seismic-reflection, echo-sounding, and sidescan-sonar records were collected by the U.S. Geological Survey during two cruises over Georges Bank aboard the R/V OCEANUS (cruise 056, March 6-15, 1979 and cruise 067, August 6-13, 1979) (fig. 1). The data collected during these two cruises contributed to a study of bed-form types...
Measured sections of the Browns Park Formation (Miocene) in Moffat County, Colorado, 1980
Stanley J. Luft, William L. Thoen
1981, Open-File Report 81-171
Eight partial sections of the Browns Park Formation of Miocene age were measured in Moffat County, northwestern Colorado, during the 1980 field season, as part of a study of the stratigraphy and depositional environments of the formation. These newly measured sections are intended to complement other surface sections of the...
Ground-water levels in alluvium on the south coast of Puerto Rico, February 1979
Eloy Colon-Dieppa, J.R. Gonzalez
1981, Open-File Report 81-641
Selected drill-stem-test data from the Northern Great Plains area of Montana
Gary W. Levings
1981, Open-File Report 81-326
Selected drill-stem-test data were collected for use in the hydrologic analysis of aquifers in the northern Great Plains area of Montana. To supplement existing data defining the potentiometric surface of various aquifers, shut-in pressures recorded during drill-stem tests of oil and gas test wells were used to calculate the altitude...
Stratigraphic sections of Middle Jurassic Entrada Sandstone and related rocks from Salt Valley to Dewey Bridge in east-central Utah
Robert Brett O'Sullivan
1981, Oil and Gas Investigation Chart 113
No abstract available....
Subsurface cross section from southeastern Alberta, Canada, to Bowdoin Dome area, northcentral Montana, showing correlation of Cretaceous rocks and shallow, gas-productive zones in low-permeability reservoirs
Dudley D. Rice
1981, Oil and Gas Investigation Chart 112
No abstract available....
Correlation of Eocene rocks in measured sections in the southeast and west parts of the Rock Springs coal field, Wyoming
Henry W. Roehler
1981, Oil and Gas Investigation Chart 111
Petrogenetic modeling of a potential uranium source rock, Granite Mountains, Wyoming
J. S. Stuckless, A.T. Miesch
1981, Professional Paper 1225
Previous studies of the granite of Lankin Dome have led to the conclusion that this granite was a source for the sandstone-type uranium deposits in the basins that surround the Granite Mountains, Wyo. Q-mode factor analysis of 29 samples of this granite shows that five bulk compositions are required to...
A method of estimating average streamflow and headwater limits in U.S. Army Corps of Engineers, Mobile District, Alabama and adjacent states
Joe R. Harkins, J.D. Shell, R.F. Carter, Roger P. Rumenik
1981, Open-File Report 81-59
Aeromagnetic map of the Mokelumne Wilderness and contiguous Rare II further planning areas, central Sierra Nevada, California
Donald Plouff, Edwin H. McKee
1981, Miscellaneous Field Studies Map 1201-B
The aeromagnetic map consists of parts of two surveys flown at an altitude of 300 m above the average ground surface. One survey (west park of the map_ centered over the Mokelumne Wilderness was flowing in a northeast-southwest direction along slight lines spaced at a horizontal interval of about 800...
Petrographic and chemical data on Cretaceous granitic rocks of the Big Delta Quadrangle, Alaska
Stephen T. Luthy, Helen Laura Foster, Grant W. Cushing
1981, Open-File Report 81-398
Sources of data, procedures, and bibliography for coal resource investigation of western Maryland
Paul C. Lyons, Edwin F. Jacobsen
1981, Open-File Report 81-739
Plankton studies in San Francisco Bay; I, Chlorophyll distributions and hydrographic properties, July 1977-December 1979
Andrea E. Alpine, James E. Cloern, Brian E. Cole
1981, Open-File Report 81-213
This report summarizes the distribution of phytoplankton biomass and selected hydrographic properties measured in the San Francisco Bay Estuary, on a near-monthly basis, from July 1977 through December 1979. Parameters measured were: chlorophyll a, phaeopigments, in-vivo fluorescence, turbidity, size distribution of phytoplankton, salinity and temperature. (USGS)...
Earthquake-induced liquefaction and subsidence of granular media
S. Nemat-Nasser
1981, Open-File Report 81-259
Floods of September 16, 1975 in the Tallaboa Valley, Puerto Rico
Karl G. Johnson
1981, Open-File Report 80-1283
This report provides a record of the flood of September 16, 1975, and associated hydrologic data. These data can be used in making rational decisions in formulating effective flood-plain regulations that would minimize flood problems in the Tallaboa Valley.The Tallaboa Valley (fig. 1) lies on the southwestern coast of Puerto...
Modeling of a transient streambed in the Rio Grande, Cochiti Dam to near Albuquerque, New Mexico
Robert C. Mengis
1981, Open-File Report 82-106
Quality of surface water in the Suwannee River Basin, Florida, August 1968 through December 1977
Robert W. Hull, Joel E. Dysart, William B. Mann IV
1981, Water-Resources Investigations Report 80-110
In the 9,950-square mile area of the Suwannee River basin in Florida and Georgia, 17 surface-water stations on 9 streams and several springs were sampled for selected water-quality properties and constituents from August 1968 through December 1977. Analyses from these samples indicate that: (1) the water quality of tributary wetlands...
Geochemical analyses and summaries of Mississippian and Pennsylvanian sandstone from Kentucky
Jon J. Connor
1981, Open-File Report 81-1098
Favorable environments for the occurrence of sandstone-type uranium deposits, Milford Basin, Utah
W. Roger Miller, John B. McHugh
1981, Open-File Report 81-501
Effects of Mount St. Helens eruption on selected lakes in Washington
N. P. Dion, S.S. Embrey
1981, Circular 850-G
During several periods of volcanic-ash eruption at Mount St. Helens, Wash., (March 30, May 25-26, May 30-June 2, and June 12-13, 1980) strong winds from the north occurred at high altitudes. As a result, the volcanic ash fell some 50 miles to the south in the Bull Run watershed, the...
Postglacial faulting in the vicinity of the Norumbega fault zone, eastern Maine
Woodrow B. Thompson
1981, Open-File Report 81-1039
