Sample catalog for core CL-80-1, Clear Lake, Lake County, California
Michael J. Rymer, John D. Sims, Charles W. Hedel, W.D. Bridge, R.S. Makdisi, G.A. Mannshardt
1981, Open-File Report 81-245
A 177-m-long core designated CL-80-1 was taken from Clear Lake, Calif., during July and August, 1980, at latitude 39.08°N, longitude 122.84°W (fig. 1). The core was removed from Clear Lake for interdisciplinary studies and regional correlation of paleoclimates, paleoecologies, paleolimnology, Quaternary dating techniques, and frequency of volcanic eruptions. This catalog...
Research in the Geysers-Clear Lake geothermal area, Northern California
Robert J. McLaughlin, Julie M. Donnelly-Nolan, editor(s)
1981, Professional Paper 1141
The Geysers-Clear Lake area is one of two places in the world where major vapor-dominated hydrothermal reservoirs are commercially exploited for electric power production. Because energy can be extracted more efficiently from steam than from hot water, vapor-dominated systems are preferable for electric power generation, although most geothermal electric power...
A late Oligocene or earliest Miocene molluscan fauna from Sitkinak Island, Alaska
Richard C. Allison, Louie Marincovich
1981, Professional Paper 1233
Raymond quadrangle, Madera and Mariposa counties, California— Analytic data
Paul Charles Bateman, Wayne N. Sawka
1981, Professional Paper 1214
No abstract available....
Stratigraphy, paleontology, and geology of the central Santa Cruz Mountains, California Coast Ranges
Joseph C. Clark
1981, Professional Paper 1168
Tectonics of southeastern Arizona
Harald D. Drewes
1981, Professional Paper 1144
Surface geology of the Jeptha Knob cryptoexplosion structure, Shelby County, Kentucky
Earle Rupert Cressman
1981, Professional Paper 1151-B
The Jeptha Knob crytoexplosion structure, described by Bucher in 1925, was remapped in 1973 as part of the U.S. Geological Survey and the Kentucky Geological Survey cooperative mapping program. The knob is in the western part of the Blue Grass region. Hilltops in the rolling farmland adjacent to the knob...
Deformation of host rocks and flow of magma during growth of minette dikes and breccia-bearing intrusions near Ship Rock, New Mexico
Paul T. Delaney, David D. Pollard
1981, Professional Paper 1202
We have studied a small group of minette dikes and plugs that crop out within a flat-lying sequence of siltstone and shale near Ship Rock, a prominent volcanic throat of tuff breccia in northwestern New Mexico. Seven dikes form a radial pattern about Ship Rock we describe in detail the...
The Accotink Schist, Lake Barcroft Metasandstone, and Popes Head Formation— Keys to an understanding of the tectonic evolution of the northern Virginia Piedmont
Avery Ala Drake, Peter T. Lyttle
1981, Professional Paper 1205
The newly named Accotink Schist and Lake Barcroft Metasandstone of the Eastern Fairfax sequence are the structurally lowest metamorphic rocks in the northernmost Piedmont of Virginia. The Accotink consists of beds of pelitic schist that have thin basal intervals containing graded, very fine grained metasiltstone, as well as interbeds of...
Geology and origin of the Chilean nitrate deposits
George Edward Ericksen
1981, Professional Paper 1188
Seismic intensities of earthquakes of conterminous United States– Their prediction and interpretation
J. F. Evernden, W.M. Kohler, Gary D. Clow
1981, Professional Paper 1223
No abstract available....
Amount and timing of late Cenozoic uplift and tilt of the central Sierra Nevada, California: Evidence from the upper San Joaquin River basin
N. King Huber
1981, Professional Paper 1197
No abstract available....
Conodonts from the Genesee Formation in western New York
John Warfield Huddle, John E. Repetski
1981, Professional Paper 1032-B
No abstract available....
Landslides from the February 4, 1976, Guatemala earthquake
Edwin L. Harp, Raymond C. Wilson, Gerald F. Wieczorek
1981, Professional Paper 1204-A
The M (Richter magnitude) = 7.5 Guatemala earthquake of February 4, 1976, generated more than 10,000 landslides throughout an area of approximately 16,000 km2. These landslides caused hundreds of fatalities as well as extensive property damage. Landslides disrupted both highways and the railroad system and thus severely hindered early rescue...
Early Jurassic ammonites from Alaska
Ralph Willard Imlay
1981, Professional Paper 1148
Jurassic (Bathonian and Callovian) ammonites in eastern Oregon and western Idaho
Ralph Willard Imlay
1981, Professional Paper 1142
Late Jurassic ammonites from Alaska
Ralph William Imlay
1981, Professional Paper 1190
Petrologic and structural studies in the northwestern Sierra Nevada, California
Anna Martta Hietanen
1981, Professional Paper 1226-A-C
No abstract available....
Systematic ice retreat in New England
Carl Koteff, Fred Pessl
1981, Professional Paper 1179
Lithostratigraphy of the Silurian rocks exposed on the west side of the Cincinnati Arch in Kentucky
Warren Lee Peterson
1981, Professional Paper 1151-C
This report discusses the Silurian rocks that crop out in Kentucky west of the axis of the Cincinnati arch. The Silurian System has a maximum thickness in this outcrop area of about 190 feet. It is in most places separated from the underlying Ordovician System by a minor erosional unconformity....
The geothermal hydrology of Warner Valley, Oregon: A reconnaissance study
Edward A. Sammel, Robert W. Craig
1981, Professional Paper 1044-I
No abstract available....
The sorting and deposition of allochthonous plant material in a modern environment at Silwood Lake, Silwood Park, Berkshire, England
Robert A. Spicer
1981, Professional Paper 1143
Geology of the western part of the Harold D. Roberts Tunnel, Colorado (Stations 0+00 to 690+00)
Ernest Eugene Wahlstrom, Charles Sherwood Robinson, V. Quentin Hornback
1981, Professional Paper 831-C
Summary of the engineering geology of the Harold D. Roberts Tunnel, Colorado
Ernest Eugene Wahlstrom
1981, Professional Paper 831-E
Geology of the eastern part of the Harold D. Roberts Tunnel, Colorado (Stations 690+00 to 1238+58)
Lawrence Allen Warner, Charles Sherwood Robinson
1981, Professional Paper 831-D