Publications
Filter Total Items: 2674
Trace metals and major and rare earth elements in cuttings from five high-temperature wells in the northwest region of The Geysers, California, vapor-dominated geothermal system
Temperatures within the main vapor-dominated steam reservoir at The Geysers geothermal field generally are in the range 238°C to 244°C. A few deep wells in the northwestern part of the field have penetrated beneath this reservoir into a second vapor-dominated reservoir where temperatures are >315°C, while vapor pressure remains nearly constant at about 35.9 bars (Walters et al., 1992). Vapor-domin
Authors
Robert O. Fournier, Joseph N. Moore
Composition of waters from the research drill hole at the summit of Kilauea Volcano, Hawaii; 1973-1991
No abstract available.
Authors
Robert I. Tilling, Blair F. Jones
The Pu'u O'o-Kupaianaha eruption of Kilauea Volcano; June 1990 through August 1994 lava sample archive
No abstract available.
Authors
Margaret T. Mangan, C. C. Heliker, T. N. Mattox, J. P. Kauahikaua, Rosalind Tuthill Helz, B. C. Hearn
Hydrologic effects associated with the June 28, 1992 Landers, California, earthquake sequence
No abstract available.
Authors
E.A. Roeloffs, W.R. Danskin, C. D. Farrar, D. L. Galloway, S. N. Hamlin, E.G. Quilty, H.M. Quinn, D.H. Schaefer, M. L. Sorey, D.E. Woodcock
Cerro Prieto geothermal field, Mexico; chemical analyses and other data for 58 samples collected in 1977-1979
This report releases the results of selected chemical analyses by the USGS of fluids collected from geothennal power production wells at the Cerro Prieto Geothennal Field, Mexico. Cerro Prieto, the world's largest producing hot-water geothennal field, is located 32 km southeast of Mexicali, Baja California. Comision Federal de Electricidad de Mexico (CFE) gave permission for, and assisted in, samp
Tholeiitic‐alkalic transition at subglacial volcanoes, Tuya region, British Columbia, Canada
Ash Mountain, South Tuya, and Tuya Butte are three small basaltic volcanoes in the Stikine volcanic belt of northern British Columbia. The volcanoes rise 700, 500, and 400 m above their bases and are about 3.2, 1.6, and 2.6 km3 in volume, respectively. They began eruptive activity under several hundred meters of overlying glacial ice, or water in an ice‐impounded lake, and undegassed pillow lava w
Authors
James G. Moore, C.J. Hickson, L. C. Calk
Preliminary geologic map of the Mount Hood 30- by 60-minute Quadrangle, Northern Cascade Range, Oregon
This map shows the geology of the central and eastern parts of the Cascade Range in northern Oregon. The Quaternary andesitic stratovolcano of Mount Hood dominates the northwest quarter of the quadrangle, but nearly the entire area is underlain by arc-related volcanic and volcaniclastic rocks of the Cascade Range. Most stratigraphic units were emplaced since middle Miocene time, and all are Oligoc
Authors
David R. Sherrod, William E. Scott
Descriptions, photographs and positions for Global Positioning System (GPS) bench marks in the vicinity of Lassen Peak, California
No abstract available.
Authors
Kenneth M. Yamashita, E.Y. Iwatsubo, Elliot T. Endo
Volcanic activity in Alaska: Summary of events and response of the Alaska Volcano Observatory 1994
During 1994, the Alaska Volcano Observatory (AVO) responded to eruptions, possible eruptions, or false alarms at nine volcanic centers-- Mount Sanford, Iliamna, the Katmai group, Kupreanof, Mount Veniaminof, Shishaldin, Makushin, Mount Cleveland and Kanaga (table 1). Of these volcanoes, AVO has a real time, continuously recording seismic network only at Iliamna, which is located in the Cook Inlet
Authors
Christina A. Neal, Michael P. Doukas, Robert G. McGimsey
Quick reference to Alaska's active volcanoes and listing of historical eruptions, 1760-1994
No abstract available.
Authors
Robert G. McGimsey, Thomas P. Miller
Images of Kilauea East Rift Zone eruption, 1983-1993
This CD-ROM disc contains 475 scanned photographs from the U.S. Geological Survey Hawaii Observatory Library. The collection represents a comprehensive range of the best photographic images of volcanic phenomena for Kilauea's East Rift eruption, which continues as of September 1995. Captions of the images present information on location, geologic feature or process, and date. Short documentations
Authors
Taeko Jane Takahashi, C. C. Abston, C. C. Heliker