Publications
Filter Total Items: 1429
Potential effects of a scenario earthquake on the economy of southern California: Labor market exposure and sensitivity analysis to a magnitude 7.8 earthquake Potential effects of a scenario earthquake on the economy of southern California: Labor market exposure and sensitivity analysis to a magnitude 7.8 earthquake
The Multi-Hazards Demonstration Project (MHDP) is a collaboration between the U.S. Geological Survey (USGS) and various partners from the public and private sectors and academia, meant to improve Southern California's resiliency to natural hazards (Jones and others, 2007). In support of the MHDP objectives, the ShakeOut Scenario was developed. It describes a magnitude 7.8 (M7.8)...
Authors
Benson C. Sherrouse, D. J. Hester, Anne M. Wein
Potential effects of a scenario earthquake on the economy of southern California: Small business exposure and sensitivity analysis to a magnitude 7.8 earthquake Potential effects of a scenario earthquake on the economy of southern California: Small business exposure and sensitivity analysis to a magnitude 7.8 earthquake
The Multi-Hazards Demonstration Project (MHDP) is a collaboration between the U.S. Geological Survey (USGS) and various partners from the public and private sectors and academia, meant to improve Southern California's resiliency to natural hazards (Jones and others, 2007). In support of the MHDP objectives, the ShakeOut Scenario was developed. It describes a magnitude 7.8 (M7.8)...
Authors
Benson C. Sherrouse, D. J. Hester, Anne M. Wein
Preliminary Geologic Map of the North-Central Part of the Alamosa 30' x 60' Quadrangle, Alamosa, Conejos and Costilla Counties, Colorado Preliminary Geologic Map of the North-Central Part of the Alamosa 30' x 60' Quadrangle, Alamosa, Conejos and Costilla Counties, Colorado
This geologic map presents new polygon (geologic map unit contacts) and line (terrace and lacustrine spit/barrier bar) vector data for a map comprised of four 7.5' quadrangles in the north-central part of the Alamosa, Colorado, 30' x 60' quadrangle. The quadrangles include Baldy, Blanca, Blanca SE, and Lasauses. The map database, compiled at 1:50,000 scale from new 1:24,000-scale mapping...
Authors
Michael N. Machette, Ren A. Thompson, Theodore R. Brandt
Preliminary Geologic Map of the Culebra Peak Area, Sangre de Cristo Mountains, Las Animas and Costilla Counties, Colorado Preliminary Geologic Map of the Culebra Peak Area, Sangre de Cristo Mountains, Las Animas and Costilla Counties, Colorado
This geologic map provides new geologic mapping at 1:50,000-scale in the Culebra Peak area of the Sangre de Cristo Mountains of south-central Colorado. The map area includes all of the El Valle Creek, Stonewall, Culebra Peak, and Torres 7.5' quadrangles. Paleoproterozoic crystalline basement rocks are exposed along the crest of the Culebra Range which include a calc-alkaline gneiss...
Authors
Christopher J. Fridrich, Robert M. Kirkham
Digital elevation models of the Pre-Eruption 2000 Crater and 2004-07 Dome-Building Eruption at Mount St. Helens, Washington, USA Digital elevation models of the Pre-Eruption 2000 Crater and 2004-07 Dome-Building Eruption at Mount St. Helens, Washington, USA
Presented in this report are 27 digital elevation model (DEM) datasets for the crater area of Mount St. Helens. These datasets include pre-eruption baseline data collected in 2000, incremental model subsets collected during the 2004–07 dome building eruption, and associated shaded-relief image datasets. Each dataset was collected photogrammetrically with digital softcopy methods...
Authors
James A. Messerich, Steve P. Schilling, Ren A. Thompson
Late Pleistocene through Holocene landscape evolution of the White River Badlands, South Dakota Late Pleistocene through Holocene landscape evolution of the White River Badlands, South Dakota
Badlands are common arid and semiarid landscapes long recognized in slope development and erosion rate studies by preeminent geomorphologists including Gilbert, Davis, and Schumm. The trip described here will examine in detail Quaternarystrata and landscape evolution in arguably the most famous badlands, the White River Badlands of South Dakota, which were pivotal during development of...
Authors
Patrick A. Burkhart, Jack Livingston, J. E. Rawling, Paul R. Hanson, Shannon A. Mahan, Rachel Benton, Erin Heffron, Michael Jahn, Travis Anderson, Bryan Page
Increasing eolian dust deposition in the western United States linked to human activity Increasing eolian dust deposition in the western United States linked to human activity
Mineral aerosols from dust are an important influence on climate and on marine and terrestrial biogeochemical cycles. These aerosols are generated from wind erosion of surface soils. The amount of dust emission can therefore be affected by human activities that alter surface sediments. However, changes in regional- and global-scale dust fluxes following the rapid expansion of human...
Authors
J. C. Neff, A. P. Ballantyne, G. L. Farmer, N. M. Mahowald, C. C. Landry, J. T. Overpeck, T. H. Painter, C. R. Lawrence, Richard L. Reynolds
Magmatic and tectonic evolution of the Caetano caldera, north-central Nevada: A tilted, mid-Tertiary eruptive center and source of the Caetano Tuff Magmatic and tectonic evolution of the Caetano caldera, north-central Nevada: A tilted, mid-Tertiary eruptive center and source of the Caetano Tuff
The Caetano Tuff is a late Eocene, rhyolite ash-flow tuff that crops out within an ∼90-km-long, east-west–trending belt in north-central Nevada, previously interpreted as an elongate graben or “volcano-tectonic trough.” New field, petrographic, geochemical, and geochronologic data show that: (1) the east half of the “trough” is actually the Caetano caldera, formed by eruption of the...
Authors
David A. John, Christopher D. Henry, Joseph P. Colgan
Palaeoclimate Palaeoclimate
This chapter assesses palaeoclimatic data and knowledge of how the climate system changes over interannual to millennial time scales, and how well these variations can be simulated with climate models. Additional palaeoclimatic perspectives are included in other chapters. Palaeoclimate science has made significant advances since the 1970s, when a primary focus was on the origin of the...
Authors
Eystein Jansen, Jonathan Overpeck, Keith R. Briffa, Jean-Claude Duplessy, Fortunat Joos, Valerie Masson-Delmotte, Daniel Olago, Bette Otto-Bliesner, W. Richard Peltier, Stefan Rahmstorf, Rengaswamy Ramesh, Dominique Raynaud, David Rind, Olga Solomina, Ricardo Villalba, De’er Zhang, Jean-Marc Barnola, Eva M. Bauer, Esther Brady, Mark Chandler, Julia E. Cole, Edward R. Cook, Esla Cortijo, Trond Dokken, Dominik Fleitmann, Masa Kageyama, Myriam Khodri, Laurent Labeyrie, Alexander Laine, Anders Levermann, E. Mosley-Thompson, Daniel R. Muhs, Raimund Muscheler, Tim Osborn, Oyvind Paasche, Frederic Parrenin, Gian-Kasper Plattner, Henry Pollack, Renato Spahni, Lowell D. Stott, Lonnie Thompson, Claire Waelbroeck, Gregory Wiles, James Zachos, Zhangteng Guo
Late Cenozoic drainage history of the southwestern Great Basin and lower Colorado River region: Geologic and biotic perspectives Late Cenozoic drainage history of the southwestern Great Basin and lower Colorado River region: Geologic and biotic perspectives
No abstract available.
Authors
Marith C. Reheis, R. Hershler, David M. Miller
Rocks above the clouds: A hiker's and climber's guide to Colorado mountain geology Rocks above the clouds: A hiker's and climber's guide to Colorado mountain geology
A Colorado mountain geology book written specifically for climbers, scramblers and hikers. A geologic primer for mountain people with range-by-range geological descriptions of Colorado mountains and detailed geologic information on the Fourteeners. Rocks Above the Clouds is the first geology book written for climbers, scramblers and hikers. It is an exploration of how the nature of...
Authors
Jack Reed, Gene Ellis