Publications
Here you will find publications, reports and articles produced by geology, energy, and mineral scientists. For a comprehensive listing of all USGS publications, click the button below.
Filter Total Items: 1428
Geologic map and digital database of the Yucaipa 7.5’ quadrangle, San Bernardino and Riverside Counties, California Geologic map and digital database of the Yucaipa 7.5’ quadrangle, San Bernardino and Riverside Counties, California
Authors
Jonathan C. Matti, D. M. Morton, B. F. Cox, S. E. Carson, T. J. Yetter, P. M. Cossette, M. C. Wright, S. A. Kennedy, M. L. Dawson, R. M. Hauser
Cx-02 Program, workshop on modeling complex systems Cx-02 Program, workshop on modeling complex systems
This publication contains the abstracts and program for the workshop on complex systems that was held on November 19-21, 2002, in Reno, Nevada. Complex systems are ubiquitous within the realm of the earth sciences. Geological systems consist of a multiplicity of linked components with nested feedback loops; the dynamics of these systems are non-linear, iterative, multi-scale, and operate...
Authors
Victor G. Mossotti, Jo Ann Barragan, Todd D. Westergard
Alaska resource data file: Talkeetna Mountains quadrangle Alaska resource data file: Talkeetna Mountains quadrangle
Descriptions of the mineral occurrences shown on the accompanying figure follow. See U.S. Geological Survey (1996) for a description of the information content of each field in the records. The data presented here are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska.
Authors
Robert K. Rogers, Jeanine M. Schmidt
Preliminary location and age database for invertebrate fossils collected in the San Francisco Bay region, California Preliminary location and age database for invertebrate fossils collected in the San Francisco Bay region, California
Most geologic maps published for central California in the past century have been made without the benefit of microfossils. The age of Cretaceous and Tertiary rocks in the structurally complex sedimentary formations of the Coast Ranges is critical in determining stratigraphic succession and in determining whether the juxtapositon of similar appearing formations means that a fault is...
Authors
John M. Parker, William B. West, William T. Malmborg, Earl E. Brabb
Origin of the Lisburne Hills–Herald Arch structural belt: Stratigraphic, structural, and fission-track evidence from the Cape Lisburne area, northwestern Alaska Origin of the Lisburne Hills–Herald Arch structural belt: Stratigraphic, structural, and fission-track evidence from the Cape Lisburne area, northwestern Alaska
No abstract available.
Authors
Thomas E. Moore, T.A. Dumitru, K.E. Adams, S.N. Witebsky, A. G. Harris
What governments are doing to reduce the consequences of landslides What governments are doing to reduce the consequences of landslides
No abstract available.
Authors
E. E. Brabb, D. G. Howell, W. R. Cotton
Isostatic gravity map of the Monterey 30' x 60' quadrangle and adjacent areas, California Isostatic gravity map of the Monterey 30' x 60' quadrangle and adjacent areas, California
The digital dataset consists of one file (monterey_100k.iso) containing 2,385 gravity stations. The file, monterey_100k.iso, contains the principal facts of the gravity stations, with one point coded per line. The format of the data is described below. Each gravity station has a station name, location (latitude and longitude, NAD27 projection), elevation, and an observed gravity reading...
Authors
V.E. Langenheim, S. R. Stiles, R.C. Jachens
Rationale and operational plan for a U.S. high-altitude magnetic survey Rationale and operational plan for a U.S. high-altitude magnetic survey
On August 8, 2002, twenty-one scientists from the federal, private and academic sectors met at a workshop in Denver, Co., to discuss the feasibility of collecting magnetic anomaly data on a Canberra aircraft (Figure 1). The need for this 1-day workshop arose because of an exciting and cost-effective opportunity to collect invaluable magnetic anomaly data during a Canberra mission over...
Authors
Thomas G. Hildenbrand, Mario Acuna, Robert E. Bracken, Doug Hardwick, William J. Hinze, Gordon R. Keller, Jeff Phillips, Walter Roest
Shaded relief, topographic slope, and land use planning in the Los Altos Hills area, California - an example of the use of elevation data Shaded relief, topographic slope, and land use planning in the Los Altos Hills area, California - an example of the use of elevation data
No abstract available.
Authors
Suzanna K. Brooks, Arthur H. Lachenbruch, Carl M. Wentworth
Rationale and operational plan to upgrade the U.S. gravity database Rationale and operational plan to upgrade the U.S. gravity database
A concerted effort is underway to prepare a substantially upgraded digital gravity anomaly database for the United States and to make this data set and associated usage tools available on the internet. This joint effort, spearheaded by the geophysics groups at the National Imagery and Mapping Agency (NIMA), University of Texas at El Paso (UTEP), U.S. Geological Survey (USGS), and...
Authors
Thomas G. Hildenbrand, Allen Briesacher, Guy Flanagan, William J. Hinze, A. M. Hittelman, Gordon R. Keller, R.P. Kucks, Donald Plouff, Walter Roest, John Seeley, David A. Stith, Mike Webring
Preliminary report on mercury geochemistry of placer gold dredge tailings, sediments, bedrock, and waters in the Clear Creek restoration area, Shasta County, California Preliminary report on mercury geochemistry of placer gold dredge tailings, sediments, bedrock, and waters in the Clear Creek restoration area, Shasta County, California
Clear Creek, one of the major tributaries of the upper Sacramento River, drains the eastern Trinity Mountains. Alluvial plain and terrace gravels of lower Clear Creek, at the northwest edge of the Sacramento Valley, contain placer gold that has been mined since the Gold Rush by various methods including dredging. In addition, from the 1950s to the 1980s aggregate-mining operations...
Authors
Roger P. Ashley, James J. Rytuba, Ronald Rogers, Boris B. Kotlyar, David Lawler
Preliminary gravity inversion model of Frenchman Flat Basin, Nevada Test Site, Nevada Preliminary gravity inversion model of Frenchman Flat Basin, Nevada Test Site, Nevada
The depth of the basin beneath Frenchman Flat is estimated using a gravity inversion method. Gamma-gamma density logs from two wells in Frenchman Flat constrained the density profiles used to create the gravity inversion model. Three initial models were considered using data from one well, then a final model is proposed based on new information from the second well. The preferred model...
Authors
Geoffrey A. Phelps, Scott E. Graham