A5023425045- Geology and Paleoclimatology Research
- Geological and Geochemical Analysis
- Geological Modeling and Analysis
- Geological Studies and Exploration
- Geochemistry and Geologic Mapping
- Landslides and related hazards
- Geological formations and processes
- earthquake and tectonic studies
- Fire effects on ecosystems
- Archaeology and Natural History
- Rangeland and Wildlife Management
- Seismology and Earthquake Studies
- Botany, Ecology, and Taxonomy Studies
- Atmospheric and Environmental Gas Dynamics
- Aeolian processes and effects
- Cryospheric studies and observations
- Remote Sensing and LiDAR Applications
- Maritime and Coastal Archaeology
- Hydrocarbon exploration and reservoir analysis
- Water Quality and Resources Studies
- High-pressure geophysics and materials
- Paleontology and Stratigraphy of Fossils
- Species Distribution and Climate Change
- Geotechnical and Geomechanical Engineering
- Traffic Prediction and Management Techniques
United States Geological Survey
1990-2021
Earth and Space Research
2003-2020
University of Washington
1991-2020
Metropolitan Washington Council of Governments
2003
University of Puget Sound
2003
Goddard Space Flight Center
2003
National Aeronautics and Space Administration
2003
Pacific Island Ecosystems Research Center
2001
Western Washington University
1981-1994
Washington Department of Natural Resources
1994
More than 10,000 km 2 of high-resolution, public-domain topography acquired by the Puget Sound Lidar Consortium is revolutionizing investigations active faulting, continental glaciation, landslides, and surficial processes in seismically Lowland.The Lowland-the population economic center Pacific Northwest-presents special problems for hazards investigations, with its young glacial topography, dense forest cover, urbanization.Lidar mapping during leaf-off conditions has led to a detailed...
Research Article| January 01, 2004 Holocene fault scarps near Tacoma, Washington, USA Brian L. Sherrod; Sherrod 1U.S. Geological Survey, Department of Earth and Space Sciences, University Box 351310, Seattle, Washington 98195, Search for other works by this author on: GSW Google Scholar Thomas M. Brocher; Brocher 2U.S. MS 977, 345 Middlefield Road, Menlo Park, California 94025, Craig S. Weaver; Weaver 3U.S. Robert C. Bucknam; Bucknam 4U.S. 966, Denver Federal Center, Lakewood, Colorado...
The northern Cascadia forearc takes up most of the strain transmitted northward via Oregon Coast block from northward‐migrating Sierra Nevada block. north‐south contractional in manifests upper‐plate faults active during Holocene, northern‐most components which are within Bellingham Basin. Basin is four basins actively deforming forearc. A set Holocene faults, Drayton Harbor, Birch Bay, and Sandy Point occur can be traced onshore to offshore using a combination aeromagnetic lineaments,...
High-resolution topographic surveys allow fairly precise mapping of landslide deposits and their relative ages. Relative ages are determined by cross-cutting relations the amount smoothing—more smoothed slide older—of these deposits. The Tulalip Tribes, in partnership with Puget Sound Lidar Consortium, acquired a high-resolution lidar (light detection ranging) survey North Fork Stillaguamish River valley 2013. This report presents preliminary interpretation topography this area using data at...
Research Article| October 01, 1991 Late Cretaceous and early Tertiary plutonism deformation in the Skagit Gneiss Complex, North Cascade Range, Washington British Columbia RALPH A. HAUGERUD; HAUGERUD 1U.S. Geological Survey at Department of Sciences, AJ-20, University Washington, Seattle, 98195 Search for other works by this author on: GSW Google Scholar PETER VAN DER HEYDEN; HEYDEN 2Department Columbia, Vancouver, V6T 2B4 Canada ROWLAND W. TABOR; TABOR 3U.S. Survey, Menlo Park, California...
The mineralogy of shocked mineral and lithic grains in the Cretaceous-Tertiary (K-T) boundary claystone worldwide is most consistent with a bolide impact on continent. Both concentrations sizes these are greatest western interior North America. These data suggest that Manson structure north-central Iowa viable candidate for K-T event. Argon-40-argon-39 age spectrum dating microcline from crystalline central uplift indicates there was severe argon-40 loss at 65.7 +/- 1.0 million years ago, an...
The Upper Cretaceous Ventura Member of the Goat Wall unit in southern Methow block British Columbia and northern Washington State holds a syntectonic magnetization. Eight new sites from Manning Park give mean direction D = 27.5°, I 60.1°, k 304.7, α 95 3.2° after optimal partial tilt correction. Of five groups bedded farther south basin reported by Bazard et al. [1990] , four have remanence with similar to what we observe. exception is one group which has concentration directions on >100%...
Research Article| April 01, 1981 Metamorphic facies and tectonics in part of the Cascade Range Puget Lowland northwestern Washington E. H. BROWN; BROWN 1Department Geology, Western University, Bellingham, 98225 Search for other works by this author on: GSW Google Scholar M. L. BERNARDI; BERNARDI B. W. CHRISTENSON; CHRISTENSON J. R. CRUVER; CRUVER A. HAUGERUD; HAUGERUD P. RADY; RADY N. SONDERGAARD GSA Bulletin (1981) 92 (4): 170–178....
First posted October 8, 2020 For additional information, contact: Director,Geology, Minerals, Energy, & Geophysics Science CenterMenlo Park, CaliforniaU.S. Geological Survey345 Middlefield RoadMenlo CA 94025-3591 The Portland-Vancouver-Hillsboro Metropolitan Area (metro area) has great scenic, natural, and cultural resources is the major economic hub of Oregon. metro area subject to a variety geologic hazards. Underthrusting oceanic plate along Cascadia boundary fault, or megathrust, deforms...
1DT is an interactive Pascal program for one-dimensional modelling of conductive and advective heat transfer in a geologic context.The allows user-specified physical properties, basal boundary conditions, internal generation, tectonic deformation, rates erosion.Input from the keyboard; output form several graphic displays which may be printed during execution, as well disk file temperature-depth conditions experienced by specified material points evolution model.1DT runs on IBM PC compatible...
The North Cascade Range, commonly referred to as the Cascades, is northern part of Range that stretches from California into British Columbia, where it merges with Coast Mountains Columbia at Fraser River. Cascades are generally characterized by exposure plutonic and metamorphic rocks in contrast volcanic terrain south. more resistant erosion, display greater relief, show evidence pronounced uplift recent glaciation. Although total length extending north Snoqualmie Pass Washington, about 200...
First posted August 10, 2020 Revised November 26, 2021 For additional information, contact: Geology, Minerals, Energy, & Geophysics Science CenterU.S. Geological Survey345 Middlefield RoadMenlo Park, CA 94025 Western Whatcom County has a rich history of glaciation, sea-level change, fluvial erosion and deposition, landsliding, nearby volcanic activity, human landscape modification. This lidar-derived geomorphic map interprets this from the form position Earth’s surface.The record is broken...
Research Article| June 01, 1981 Structural and metamorphic history of the Shuksan Metamorphic Suite in Mount Watson Gee Point areas, North Cascades, Washington R. A. HAUGERUD; HAUGERUD 1Department Geology, Western University, Bellingham, WA 98225 Search for other works by this author on: GSW Google Scholar M. L. MORRISON; MORRISON E. H. BROWN Author Article Information Publisher: Geological Society America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print 0016-7606 GSA Bulletin (1981)...
The first National Lidar Initiative meeting was held on February 14-16, 2007 at the USGS Center in Reston, Virginia. This a successor to September 12, 2006 of several agencies, including Aeronautics and Space Administration (NASA), Association American State Geologists (AASG), U.S. Geological Survey (USGS). During discussion, presented plan organize discuss feasibility strategy Initiative. Originally scheduled as workshop be June, 2007, moved up accommodate desire AASG have talking points...
This atlas presents an up-to-date map compilation of the geological and geophysical observations that underpin interpretations active, surface-deforming faults in Puget Lowland, Washington. Shallow lowland are mapped where deformation from paleoseismic, seismic-reflection, potential-field investigations converge. Together, results these studies strengthen identification characterization regional show as many a dozen shallow have been active during Holocene. The suite maps presented our...
This report contains a 250-meter digital elevation model (DEM) for Cascadia (latitude 39N - 53N, longitude 116W 133W), region that encompasses the Cascade volcanic arc, subduction zone, and Juan de Fuca Ridge system. The DEM is distributed as file cascdem.tar.gz (39 MB; 78MB uncompressed).
The northwest-striking southern Whidbey Island fault zone (SWIF) was mapped previously using borehole data and potential-field anomalies on marine seismic surveys beneath surrounding waterways. Abrupt subsidence at a coastal marsh south-central suggests that the SWIF experienced MW 6.5 to 7.0 earthquake about 3000 years ago. Southeast of Island, hypothesized southeastward projection would make landfall between cities Seattle Everett. As part systematic, ongoing studies by U.S. Geological...
This map is an interpretation of a 6-ft-resolution (2-m-resolution) lidar (light detection and ranging) digital elevation model combined with the geology depicted on Geologic Map Wildcat Lake 7.5' quadrangle, Kitsap Mason Counties, Washington (Haeussler Clark, 2000). Haeussler Clark described, interpreted, located 1:24,000-scale topographic quadrangle. map, derived from 1951 aerial photographs, has 20-ft contours, nominal horizontal resolution approximately 40 ft (12 m), mean vertical...