Geologic map of the greater Denver area, Front Range urban corridor, Colorado
Donald E. Trimble, Michael N. Machette
1979, IMAP 856-H
This digital map shows the areal extent of surficial deposits and rock stratigraphic units (formations) as compiled by Trimble and Machette from 1973 to 1977 and published in 1979 under the Front Range Urban Corridor Geology Program. Trimble and Machette compiled their geologic map from published geologic maps and unpublished...
Mineral resources of the Citico Creek Wilderness Study Area, Monroe County, Tennessee
John F. Slack, E. R. Force, P. T. Behum, B. B. Williams
1979, Open-File Report 79-231
The proposed Citico Creek Wilderness comprises about 5,670 hectares (56.7 km2) in the Cherokee National Forest south of the Little Tennessee River in easternmost Monroe County, Tennessee. Principal drainages are Citico Creek and Doublecamp Creek. Rocks of the study area include greenschist-facies arkosic metasandstone, metagraywacke, slate, and metaconglomerate of the...
Preliminary map of chromite provinces in the conterminous United States
T. P. Thayer, B. R. Lipin
1979, Open-File Report 79-576-R
Map showing occurrences of spring-deposited travertine in the conterminous Western United States
J. H. Feth, Ivan Barnes
1979, Water-Resources Investigations Report 79-35
Extinct travertine terraces occur hundreds of meters above present levels of spring activity and have potentials for interpretation of ancient hydrologic systems, rates of downcutting, or rates of tectonic uplift that remain virtually unexploited. The abundance and size of extinct travertine deposits suggest that in many places, such as pinnacles...
Ground-water availability in parts of the Chicopee and Mill River basins, near Wilbraham, Massachusetts
David F. Delaney
1979, Water-Resources Investigations Report 79-72
Ground water in the Wilbraham area occurs in glacial drift and in underlying bedrock. Stratified sand and gravel deposits form the principal unconsolidated aquifers. These aquifers are generally less than 50 feet thick in most of the study area; however, an area in north-central Wilbraham, near the Chicopee River, is...
Preconstruction and postconstruction ground-water levels, Lock and Dam 3, Red River Valley, Louisiana
A. H. Ludwig, J. E. Terry
1979, Open-File Report 79-920
Proposed construction of a series of locks and dams in the Red River in Louisiana will cause a permanent increase in average river stage. The potentiometric surface of the shallow alluvial aquifer and the water table in the fine-grained material confining the aquifer will be affected. The purpose of this...
Preconstruction and postconstruction ground-water levels, Lock and Dam 4, Red River Valley, Louisiana
A. H. Ludwig, J.E. Reed
1979, Open-File Report 79-921
Proposed construction of a series of locks and dams in the Red River in Louisiana will cause a permanent increase in average river stage. The potentiometric surface of the shallow alluvial aquifer and the water table in the fine-grained material confining the aquifer will be affected. The purpose of this...
Preconstruction and postconstruction ground-water levels, Lock and Dam 5 and 6, Red River Valley, Louisiana
A. H. Ludwig, J. E. Terry
1979, Open-File Report 79-922
Proposed construction of a series of locks and dams in the Red River in Louisiana will cause a permanent increase in average river stage. The potentiometric surface of the shallow alluvial aquifer and the water table in the fine-grained material confining the aquifer will be affected. The purpose of this...
Federal coal resource occurrence and federal coal development potential maps of the Stilger East quadrangle, Muskogee and Haskell Counties, Oklahoma
Bruce T. Brady
1979, Open-File Report 79-307
No abstract available....
Geologic map of the Lava Ridge-Hells Half Acre area, eastern Snake River plain, Idaho
Mel A. Kuntz, W. E. Scott, Betty Skipp, M. H. Hait Jr., G. F. Embree, R. D. Hoggan, E. J. Williams
1979, Open-File Report 79-669
No abstract available....
Generalized thickness of the surficial deposits above the confining bed overlying the Floridan Aquifer, Southwest Florida Water Management District
R. M. Wolansky, R. M. Spechler, Anthony Buono
1979, Open-File Report 79-1071
This map report presents the thickness of the surficial deposits overlying the upper confining bed of the Floridan aquifer in the Southwest Florida Water Management District. The surficial deposits range in thickness from less than 25 feet in the western part of the district to greater than 250 feet in...
Map of Antelope Valley-East Kern Water Agency area, California, showing well density in ground-water subunits and areas
Judith C. Faughn
1979, Open-File Report 79-1298
A map (scale, 1:125,000) shows ground-water subunits and areas and the density of wells in the Antelope Valley-East Kern Water Agency areas, California. (Kosco-USGS)...
Structure contour map of buried Precambrian basement-rock surface, eastern part of the Rolla 1° x 2° quadrangle and adjacent areas, Missouri
E. B. Kisvarsanyi
1979, Miscellaneous Field Studies Map 1001-A
No abstract available....
Maps showing coal resources of the Honaker Quadrangle, Russell, Tazewell, and Buchanan counties, Virginia
Charles R. Meissner Jr.
1979, Miscellaneous Field Studies Map 1123
The Honaker quadrangle lies in two physiographic provinces. The northern half of the quadrangle is part of the Appalachian Plateaus province, where the coal-bearing formations of Pennsylvanian age are nearly flat lying or very gently dipping. Diagonally extending east-northeastward across the middle of the quadrangle are several belts of faulted,...
Map showing lithostratigraphic and structural setting of stratabound (massive) sulfide deposits in the U.S. Appalachians
Jacob Eugene Gair, John F. Slack
1979, Open-File Report 79-1517
No abstract available....
Map showing ground-water conditions in the Bodaway Mesa area, Coconino County, Arizona: 1977
C. D. Farrar
1979, Open-File Report 79-1488
The Bodaway Mesa area includes about 800 square miles in north-central Arizona, and most of the area is in the Navajo Indian Reservation. Ground-water development has been slight; in 1977 the estimated ground-water withdrawal was less than 5 acre-feet. The Chinle Formation is the principal aquifer tapped by wells, and...
Structure contour map of buried Precambrian basement-rock surface, eastern part of the Rolla 1° x 2° quadrangle and adjacent areas, Missouri
E. B. Kisvarsanyi
1979, Miscellaneous Field Studies Map 1001-B
No abstract available....
Geologic map and coal sections of the Forks Ranch quadrangle, Big Horn County, Montana
William C. Culbertson, Mark C. Klett
1979, Miscellaneous Field Studies Map 1086
The Forks Ranch quadrangle lies on the gently-dipping east flank of the Powder River basin, near its trough line....
Contour map of the base of the Pennsylvanian system, eastern Kentucky
T.D. Coskren, C. L. Rice
1979, Miscellaneous Field Studies Map 1100
No abstract available....
Water resources of the St. Louis River watershed, northeastern Minnesota
Gerald F. Lindholm, D.W. Ericson, W.L. Broussard, M. F. Hult
1979, Hydrologic Atlas 586
The St. Louis River is the largest tributary to Lake Superior in Minnesota. It drains a predominantly forested area of about 3,650 mi2 (Minnesota Department of Conservation, 1959) and discharges into the lake at Duluth. The Mesabi Iron Range, noted for rich deposits of iron ore, parallels much of the northern...
Aeromagnetic map and associated depth map of the Upper Mississippi Embayment region
T.G. Hildenbrand, R.P. Kucks, M. F. Kane, J. D. Hendricks
1979, Miscellaneous Field Studies Map 1158
The purpose of these maps is to present recently compiled aeromagnetic data and associated depth estimates to magnetic basement in the upper Mississippi embayment region. This area is one of the most seismically active regions in the eastern United States. In 1974, the U.S. Geological Survey initiated magnetic surveys to...
Estimation of floods of various frequencies for the small ephemeral streams in eastern Washington
W.L. Haushild
1979, Water-Resources Investigations Report 79-81
Equations were developed to estimate the magnitude of floods for various occurrence frequencies at ungaged sites on ephemeral streams that drain small, relatively undeveloped basins in the semiarid part of eastern Washington. The equations were developed from regression analyses that used the logarithms of the longitude indexes of gaged sites,...
Background information to accompany folio of geologic, mineral resource, geochemical, aeromagnetic, and gravity maps of the Hillsboro and San Lorenzo quadrangles, Sierra and Grant Counties, New Mexico, with sections on geochemistry and geophysics
David Carl Hedlund, K. C. Watts, Henry V. Alminas, Jeffrey C. Wynn
1979, Circular 808
The Hillsboro and San Lorenzo 15-minute quadrangles of southwestern New Mexico have been mapped at a 1:48,000 scale and selected mineralized areas within these quadrangles have been mapped in greater detail. This area of about 550 mi2 (1,424 km2) is within the southern part of the Black Range and includes...
The Alaskan Mineral Resource Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Big Delta quadrangle, Alaska
Helen Laura Foster, N. R. D. Albert, Andrew Griscom, T. D. Hessin, W. D. Menzie, D. L. Turner, Frederic H. Wilson
1979, Circular 783
The geology, geochemistry, geophysics, and Landsat imagery of the Big Delta quadrangle, 16,335 km 2 in the Yukon-Tanana Upland of east-central Alaska, were investigated, and maps and reports were prepared by an interdisciplinary research team for the purpose of assessing the mineral potential. The quadrangle is dominantly a complex terrane...
The Alaskan Mineral Resource Assessment Program: Guide to information contained in the folio of geologic and mineral resource maps of the Chandalar quadrangle, Alaska
H. N. Reiser, W. P. Brosge, J. H. DeYoung, S.P. Marsh, T. D. Hamilton, J. W. Cady, N. R. D. Albert
1979, Circular 758
The Chandalar quadrangle in east-central Alaska was investigated by a multidisciplinary research group to assess the mineral resource potential of the quadrangle. This circular serves as a guide to and integrates with a folio of 10 miscellaneous field study (MF) maps and 2 open-file (OF) reports (table 1) concerned with...
