Publications
Filter Total Items: 1333
Numerical dating of a Late Quaternary spit-shoreline complex at the northern end of Silver Lake playa, Mojave Desert, California: A comparison of the applicability of radiocarbon, luminescence, terrestrial cosmogenic nuclide, electron spin resonance, U-se
A Late Quaternary spit-shoreline complex on the northern shore of Pleistocene Lake Mojave of southeastern California, USA was studied with the goal of comparing accelerator mass spectrometry (AMS) radiocarbon, luminescence, electron spin resonance (ESR), terrestrial cosmogenic radionuclide (TCN) surface exposure, amino acid racemization (AAR) and U-series dating methods. The pattern of ages obtain
Authors
L.A. Owen, Jordon Bright, R.C. Finkel, M.K. Jaiswal, D. S. Kaufman, S. Mahan, U. Radtke, J.S. Schneider, W. Sharp, A.K. Singhvi, C.N. Warren
Atlas of relations between climatic parameters and distributions of important trees and shrubs in North America: Ecoregions of North America
Climate is the primary factor controlling the continental-scale distribution of plant species, although the relations between climatic parameters and species' ranges are only now beginning to be quantified. This volume examines the relations between climate and the distributions of (1) Kuchler's 'potential natural vegetation' categories for the 48 contiguous States of the United States of America,
Authors
Robert S. Thompson, Katherine H. Anderson, Richard T. Pelltier, Sarah L. Shafer, Patrick J. Bartlein
Geologic Map of the Goleta Quadrangle, Santa Barbara County, California
This map depicts the distribution of bedrock units and surficial deposits and associated deformation underlying those parts of the Santa Barbara coastal plain and adjacent southern flank of the Santa Ynez Mountains within the Goleta 7 ?? quadrangle at a compilation scale of 1:24,000 (one inch on the map = 2,000 feet on the ground) and with a horizontal positional accuracy of at least 20 m. The Gol
Authors
Scott A. Minor, Karl S. Kellogg, Richard G. Stanley, Theodore R. Brandt
Rapid Data Delivery System (RDDS)
Since the start of the active 2000 summer fire season, the U. S. Geological Survey (USGS) Rocky Mountain Geographic Science Center (RMGSC) has been actively engaged in providing crucial and timely support to Federal, State, and local natural hazards monitoring, analysis, response, and recovery activities. As part of this support, RMGSC has developed the Rapid Data Delivery System (RDDS) to provide
Authors
Jill J. Cress, Susan E. Goplen
Global Data Toolset (GDT)
According to the United Nations Environment Programme World Conservation Monitoring Centre (UNEP-WCMC) approximately 60 percent of the data contained in the World Database on Protected Areas (WDPA) has missing or incomplete boundary information. As a result, global analyses based on the WDPA can be inaccurate, and professionals responsible for natural resource planning and priority setting must re
Authors
Jill J. Cress, Jodi L. Riegle
Ages of Quaternary Rio Grande terrace-fill deposits, Albuquerque area, New Mexico
Results from luminescence dating on 13 samples from the Albuquerque area show that major-drainage fluvial deposits represent significant periods of aggradation that formed paired, correlatable terraces on the east and west margins of the Rio Grande valley . The youngest terrace fills (Primero Alto) formed during late Pleistocene as a result of streamflow variations with climate cooling during Mari
Authors
Shannon Mahan, Byron D. Stone, Ralph R. Shroba
Upper Neogene tephrochronologic correlations in the northern Rio Grande Rift, New Mexico and southern Colorado
No abstract available.
Authors
Janet L. Slate, Andrei M. Sarna-Wojcicki, Elmira Wan, Daniel Koning, Sean D. Connell, David P. Dethier, David B. Wahl, Michael Perkins
Loess records: North America
No abstract available.
Authors
H.M. Roberts, D.R. Muhs, E. Arthur Bettis
Last glacial loess sedimentary system of eastern Nebraska and western Iowa
No abstract available.
Authors
Joseph A. Mason, E. Arthur Bettis, Helen M. Roberts, Daniel R. Muhs, R. M. Joeckel