Altered volcanic ash partings in Wasatch Formation coal beds of the northern Powder River basin: composition and geologic applications
Bruce Forbes Bohor, Richard E. Phillips, Richard M. Pollastro
1979, Open-File Report 79-1203
In contrast to the coal-bearing rocks of the Appalachian and Eastern Interior Basins, those of the northern Powder River Basin exhibit more complex stratigraphic and facies relationships, and regional correlations of coal beds are, therefore, more difficult to establish. Recently, however, several coal beds in the Powder River Basin, as...
Location map and summary logs for the U.S. Geological Survey's 1979 Beaufort Sea over the ice drilling program
R. W. Hartz, K. Holden, D.M. Hopkins, G. Shearer
1979, Open-File Report 79-1303
Major sources of ground-water contamination in Connecticut
Elinor H. Handman, I.G. Grossman, J.W. Bingham, J.L. Rolston
1979, Open-File Report 79-1069
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...
Measured sections of Ordovician strata in northeast Kentucky
Gordon Whitney Weir, Warren Lee Peterson, W. C. Swadley
1979, Open-File Report 79-1663
The sections described in this report are part of the data used in studies of the Upper Ordovician rocks of Kentucky. The studies were part of a geologic mapping program by the U. S. Geological Survey in cooperation with the Kentucky Geological Survey. Formations of Late Ordovician age described in...
Measured stratigraphic sections of Jurassic San Rafael Group and adjacent rocks in Emery and Sevier counties, Utah
J.C. Wright, D.D. Dickey, R.P. Snyder, L.C. Craig, R. A. Cadigan
1979, Open-File Report 79-1317
These sections were measured prior to 1960, before adoption of the metric system. Publication was delayed by other assignments of the authors and later by the untimely death of J. C. Wright. They are being released at this time because of the increased interest in the uranium potential of Jurassic...
Metals in Devonian kerogenous marine strata at Gibellini and Bisoni properties in southern Fish Creek Range, Eureka County, Nevada
George A. Desborough, F. G. Poole, R. K. Hose, A. S. Radtke
1979, Open-File Report 79-530
A kerogen-rich sequence of siliceous mudstone, siltstone, and chert as much as 60 m thick on ridge 7129 in the southern Fish Creek Range, referred to as Gibellini facies of the Woodruff Formation, has been evaluated on the surface and in drill holes principally for its potential resources of vanadium,...
Stratigraphic relations of the Navajo Sandstone to Middle Jurassic formations, southern Utah and northern Arizona
Fred Peterson, G. N. Pipiringos
1979, Professional Paper 1035-B
No abstract available....
Water-level records for the northern High Plains of Colorado
Ronald G. Borman
1979, Open-File Report 80-5
Water-level measurements were made in 665 wells in January 1979 in the northern High Plains of Colorado. Measurements for January 1979 and the four preceding winters are given in a table....
Trace metals in surface sediments of the Mid-Atlantic Continental Shelf
Michael H. Bothner
1979, Open-File Report 79-843
The concentrations of 9 trace metals (Fe, Pb,Zn, Ba, Cu, Ni, V, Cr, and Cd) in surficial Continental Shelf sediments are low compared to the concentrations reported for average crustal rocks. No evidence for the accumulation of anthropogenic trace metals was found at the 51 locations sampled in this study....
Water resources of the Santa Rosa Indian Reservation and vicinity, Riverside County, California
Anthony Buono, W. R. Moyle, Patricia Dana
1979, Open-File Report 79-1172
Additional water for irrigation is needed by the Santa Rosa Indian Reservation, Riverside County, California. Water in the area is derived from precipitation, which averages 12 inches annually, on three subbasins nearly surrounding the 17-square-mile reservation. No ground water flows in from outside the area. A supply well that taps...
Mineral resources evaluation of the Round Lake Wilderness Study Area, Price and Vilas counties, Wisconsin
William F. Cannon, C. C. Cameron, J. S. Klasner, A. E. Grosz, B. B. Williams
1979, Open-File Report 79-705
Mineral resources of the Wambaw Swamp Wilderness Study Area, Charleston County, South Carolina
Cornelia Clermont Cameron, Eric R. Force, Gertrude C. Gazdik, Edward Charles Rodehamel
1979, Open-File Report 79-229
No abstract available....
Mineralogy as a guide for exploration in the Montezuma District, central Colorado
Theodore Botinelly
1979, Open-File Report 79-1177
The Montezuma district of central Colorado is a small base metal-silver mining district containing vein deposits associated with a Tertairy porphyry stock. The distribution of tetrahedrite having large unit-cell edges correlates in part with the distribution of more productive mines and suggests areas favorable for further production. The abundance of...
Clay mineralogy of Pleistocene Lake Tecopa, Inyo County, California
Harry C. Starkey, Paul D. Blackmon
1979, Professional Paper 1061
Pleistocene Lake Tecopa in southeastern Inyo County, Calif., was formed when the Amargosa River was blocked at the southern end of its valley. The lake acted as a settling basin for detrital material being transported by the river. This detritus consisted of clays, quartz, feldspars, and micas which became mudstones...
Sand dunes on the central Delmarva Peninsula, Maryland and Delaware
Charles Storrow Denny, James Patrick Owens
1979, Professional Paper 1067-C
Inconspicuous ancient sand dunes are present in parts of the central Delmarva Peninsula, Maryland and Delaware. Many dunes are roughly V-shaped, built by northwest winds, especially on the east sides of some of the large rivers. On the uplands, the form and spacing of the dunes are variable. A surficial...
Programs TRANS-HCLOOP and TRANS-HZWIRE: calculation of transient horizontal coplanar loop soundings and transient wire-loop soundings
Walter L. Anderson
1979, Open-File Report 79-590
Program MARQLOOPS: Marquardt inversion of loop-loop frequency soundings
Walter L. Anderson
1979, Open-File Report 79-240
Program MARQDCLAG: Marquardt inversion of DC-Schlumberger soundings by lagged-convolution
Walter L. Anderson
1979, Open-File Report 79-1432
Program MARQ-TRANS-HCLOOP: Marquardt inversion of transient horizontal coplanar loop soundings
Walter L. Anderson, James P. Kauahikaua
1979, Open-File Report 79-773
Program IMSLPW: Marquardt inversion of plane-wave frequency soundings
Walter L. Anderson
1979, Open-File Report 79-586
Late Precambrian Sixtymile Formation and orogeny at top of the Grand Canyon Supergroup, northern Arizona
Donald Parker Elston
1979, Professional Paper 1092
The Sixtymile Formation, a 60-m-thick red-bed unit at the top of the late Precambrian Chuar Group, crops out at three places in the Chuar syncline in the eastern Grand Canyon. Its base is marked by a transition from gray marine shale to red sandstone. The Sixtymile was deposited in the...
Paleotectonic investigations of the Mississippian System in the United States
Lawrence C. Craig, Carol Waite Connor, Others
1979, Professional Paper 1010
This professional paper is the fifth in a series of paleotectonic studies each covering a geologic system in the conterminous United States. Part I provides a region-by-region discussion of data concerning the Mississippian System and an explanation and documentation for the maps and sections contained in part III. Part II...
Abundance and distribution of thorium in the carbonatite stock at Iron Hill, Powderhorn District, Gunnison County, Colorado
Theodore J. Armbrustmacher
1979, Open-File Report 79-536
The carbonatite stock at Iron Hill is part of an alkalic complex of Cambrian or latest Precambrian age containing pyroxenite, uncompahgrite, ijolite, nepheline syenite, and related rocks characterized by their subsilicic composition and by their lack of calcic plagioclase. Thorium averages 36.2 parts per million (ppm) Th (0.0041 percent Th02)...
An appraisal of pumping effects on the Edgeley Aquifer, La Moure County, North Dakota, as determined by a digital model
M. R. Burkart
1979, Open-File Report 79-748
A finite-difference digital model simulated hydrologic conditions in the Edgeley aquifer, which is an unconfined glacial-drift aquifer. The calibrated model supported the hypothesis that under natural steady-state conditions, recharge is from precipitation and discharge is through evapotranspiration. This hypothesis was further supported by comparing simulated water levels to observed water...
