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Not all publications have extents, not all extents are completely accurate
Influence of climate on progressive hillslope failure in Redwood Creek Valley, northwestern California
Douglas N. Swanston, Robert Ruhl Ziemer, Richard J. Janda
1983, Open-File Report 83-259
Both creep and earthflow processes control hillslope erosion over large parts of the Redwood Creek basin. The type of process and displacement rates are largely dependent on underlying bedrock type and precipitation input. Progressive creep with rates ranging from 1.0 to 2.5 mm/a dominates on slopes west of the Grogen...
AIRYROOT: A Fortran program for calculating the gravitational attraction of an Airy isostatic root out to 166.7 km
R.W. Simpson, R.C. Jachens, R.J. Blakely
1983, Open-File Report 83-883
This report describes a FORTRAN-77 program called AIRYROOT which calculates the gravitational attraction at sea level of an Airy isostatic root extending out to a radius of 166.7 km. The program incorporates an efficient algorithm devised by Parker (1912) which uses the fast Fourier transform to calculate potential field anomalies....
Slides showing quantitative models for mineral-resource assessment of the Rolla 1 degree x 2 degrees Quadrangle, Missouri
Kim-Marie Walker, S.K. Jenson, J. R. Francica, D. A. Hastings, C. M. Trautwein, W. P. Pratt
1983, Open-File Report 83-387
Th.is report consists of nineteen 35-mm color slides sh.owing digital synthesis and quantitative modeling of five geologic recognition criteria for assessment of Mississippi Valley-type resource potential in the Rolla 1° x 2° quadrangle, Missouri. The digital synthesis and quantitative modeling (Pratt and others, 1982) was done to supplement an earlier...
Geothermal resources of the western arm of the Black Rock Desert, northwestern Nevada: Part I, geology and geophysics
Donald H. Schaefer, Alan H. Welch, Douglas K. Mauzer
1983, Open-File Report 81-918
Studies of the geothermal potential of the western arm of the Black Rock Desert in northwestern Nevada included a compilation of existing geologic data on a detailed map, a temperature survey at 1-meter depth, a thermal-scanner survey, and gravity and seismic surveys to determine basin geometry. The temperature survey showed...
Gravity survey of Dixie Valley, west-central Nevada
Donald H. Schaefer
1983, Open-File Report 82-111
Dixie Valley, a northeast-trending structural trough typical of valleys in the Basin and Range Province, is filled with a maximum of about 10,000 feet of alluvial and lacustrine deposits , as estimated from residual-gravity measurements obtained in this study. On the basis of gravity measurements at 300 stations on nine...
Stratigraphic framework and distribution of lignite on Crowleys Ridge, Arkansas
Charles R. Meissner
1983, Open-File Report 83-609
The purpose of this report is to establish a stratigraphic framework of lignite beds and associated strata of Crowleys Ridge, Arkansas. Drill hole data provided by the Arkansas Geological Commission is used in the synthesis and interpretation. Areas containing lignite of potential resource value are also delineated. To illustrate the...
Potentiometric surfaces on Long Island, New York -- A bibliography of maps
D. A. Smolensky
1983, Open-File Report 84-70
Historic water-level records form a major basis for ground-water investigations and water-management decisions on Long Island. Potentiometric-surface maps, one of the major sources of historic data, are scattered within the literature or are available only through the publisher or sponsoring agency. This report presents a comprehensive list of available water-table...
Statistical treatment and preliminary interpretation of chemical data from a uranium deposit in the northeast part of the Church Rock area, Gallup mining district, New Mexico
C.S. Spirakis, C. T. Pierson, E.S. Santos, N.S. Fishman
1983, Open-File Report 83-379
Statistical treatment of analytical data from 106 samples of uranium-mineralized and unmineralized or weakly mineralized rocks of the Morrison Formation from the northeastern part of the Church Rock area of the Grants uranium region indicates that along with uranium, the deposits in the northeast Church Rock area are enriched in...
Hydrology of area 2, Eastern Coal Province, Pennsylvania and New York
W.J. Herb, D.E. Brown, L. C. Shaw, J.E. Stoner, J.K. Felbinger
1983, Open-File Report 82-647
Provisions of the Surface Mining Control and Reclamation Act of 1977 recognized a nationwide need for hydrologic information in mined and potentially mined areas. This report is designed to be useful to mine owners, operators, regulatory authorities, citizens groups, and others by presenting information on existing hydrologic conditions and by...
Preliminary map of limonitic hydrothermal alteration for portions of the Needles 1° x 2° quadrangle, Arizona and California
Gary L. Raines
1983, Open-File Report 83-421
Portions of the Needles quadrangle have been designated by the Bureau of Land Management as potential wilderness areas and are being evaluated by a multidisciplinary team to determine the mineral-resource potential. As a part of this study Landsat images are being used to map the generalized distribution of limonitic materials...