Second, we consider large background source zones based on broad geologic criteria to quantify hazard in areas with little or no historic seismicity, but with the potential for generating large events. Third, we include the hazard from specific fault sources. We use about 450 faults in the ...
The State Geologic Map Compilation provides a seamless spatial data set that combines state geologic maps for the 48 conterminous United States. The layer’s attributes have been standardized among states to facilitate analyses of lithology, age, and stratigraphy at a national scale. Esri built these...
US Geological Survey Geologic Investigations Series I-2789. Map of Surficial Deposits and Materials in the Eastern and Central United States (East of 102° West Longitude). David S. Fullerton, Charles A. Bush,. Jean N. Pennell. The text of this report is presented here in Portable Document...
Geologic map of the Valdez D-1 and D-2 quadrangles (Mount Wrangell Volcano), Alaska Mount Wrangell (elev. 4,317 m) is the youngest and only active volcano in the Oligocene to Holocene-aged Wrangell volcanic field that extends from beyond the Alaska-Yukon border northwest through the Wrangell...
This report is one in a series of digital maps, data files, and reports generated by the U.S. Geological Survey (USGS) to provide geologic process and mine... Johnson, B. R,Raines, G. L 被引量: 43发表: 1996年 加载更多研究点推荐 USGS ...
(orHubbert) production profile is advocated and is linked to the concept of field growth. Continuous or unconventional oil and gas resources have been captured digitally for a future assessment effort and represent a significant future resource. A series of digital products including geologic maps of...
The general areas of interest are (1) delineation and evaluation of hazards associated with earthquakes, including but not restricted to preparation of geologic and land use maps, prediction of ground motion, and studies of seismicity induced by reservoirs and (2) earthquake prediction research and ...