Description: Active faulting and volcanism represent features and events that could potentially compromise the ability of a geologic repository to isolate waste. The major region of active faulting in the US occupies many of the western states while the most active areas of volcanism are the Cascade volcanoes of Washington and Oregon and the Snake River/Yellowstone system of Idaho and Wyoming. Scattered basaltic volcanoes of small volume have erupted during the last 10,000 years in Arizona, New Mexico, Utah, California, and Oregon. Data for their distribution of faults and volcanoes in the US are important for identifying regions of active tectonics.
Copyright Text: USGS (2006); Garrity and Soller (2009), LANL
Description: Active faulting and volcanism represent features and events that could potentially compromise the ability of a geologic repository to isolate waste. The major region of active faulting in the US occupies many of the western states while the most active areas of volcanism are the Cascade volcanoes of Washington and Oregon and the Snake River/Yellowstone system of Idaho and Wyoming. Scattered basaltic volcanoes of small volume have erupted during the last 10,000 years in Arizona, New Mexico, Utah, California, and Oregon. Data for their distribution of faults and volcanoes in the US are important for identifying regions of active tectonics.
Copyright Text: USGS (2006); Garrity and Soller (2009), LANL
Description: Active faulting and volcanism represent features and events that could potentially compromise the ability of a geologic repository to isolate waste. The major region of active faulting in the US occupies many of the western states while the most active areas of volcanism are the Cascade volcanoes of Washington and Oregon and the Snake River/Yellowstone system of Idaho and Wyoming. Scattered basaltic volcanoes of small volume have erupted during the last 10,000 years in Arizona, New Mexico, Utah, California, and Oregon. Data for their distribution of faults and volcanoes in the US are important for identifying regions of active tectonics.
Copyright Text: USGS (2006); Garrity and Soller (2009), LANL
Description: Active faulting and volcanism represent features and events that could potentially compromise the ability of a geologic repository to isolate waste. The major region of active faulting in the US occupies many of the western states while the most active areas of volcanism are the Cascade volcanoes of Washington and Oregon and the Snake River/Yellowstone system of Idaho and Wyoming. Scattered basaltic volcanoes of small volume have erupted during the last 10,000 years in Arizona, New Mexico, Utah, California, and Oregon. Data for their distribution of faults and volcanoes in the US are important for identifying regions of active tectonics.
Copyright Text: USGS (2006); Garrity and Soller (2009), LANL
Description: This layer depicts the boundaries of the sedimentary basins of the continental US. Layers attributes describe the basins by Province, Acreage, Geologic Era, Type, and Name.
Description: Areas of oil and gas exploration production indicate where relative dense and deep drilling in the US has occurred and likely will occur in the future
Description: Structures within crystalline basement rocks are interpreted primarily from geophysical data combined with generally less abundant geologic data that includes borehole data and interpretations of geologic data. Linear features and discontinuities in aeromagnetic data are generally interpreted to represent structures (faults, shear zones) that have offset and juxtaposed rocks with contrasting magnetic properties (Sims et al., 2008). These features largely formed during major tectonic episodes that took place during the Archean and Proterozoic Eons with episodic reactivation into the late Proterozoic (Sims et al., 2008).
Description: Structures within crystalline basement rocks are interpreted primarily from geophysical data combined with generally less abundant geologic data that includes borehole data and interpretations of geologic data. Linear features and discontinuities in aeromagnetic data are generally interpreted to represent structures (faults, shear zones) that have offset and juxtaposed rocks with contrasting magnetic properties (Sims et al., 2008). These features largely formed during major tectonic episodes that took place during the Archean and Proterozoic Eons with episodic reactivation into the late Proterozoic (Sims et al., 2008).
Description: Structures within crystalline basement rocks are interpreted primarily from geophysical data combined with generally less abundant geologic data that includes borehole data and interpretations of geologic data. Linear features and discontinuities in aeromagnetic data are generally interpreted to represent structures (faults, shear zones) that have offset and juxtaposed rocks with contrasting magnetic properties (Sims et al., 2008). These features largely formed during major tectonic episodes that took place during the Archean and Proterozoic Eons with episodic reactivation into the late Proterozoic (Sims et al., 2008).
Description: Data for horizontal stress in the US was acquired from the World Stress Map Project (Heidbach et al., 2008). Technical siting guidelines related to horizontal stresses in the crust relative to deep borehole disposal are discussed in detail by Arnold et al. (2013). Large differential horizontal stresses can compromise borehole integrity through breakouts oriented in the direction of the minimum horizontal stress. Relatively homogeneous regions of the US with low differential stress, such as the mid-continent region, are therefore more favorable for a deep borehole disposal demonstration site (Arnold et al., 2013
Description: Strong seismic ground motion produced by fault displacement can adversly impact repository facilities and infrastructure and is indicative of regions of tectonic activity5). The seismic ground motion hazard is represented as the probability of exceeding a certain peak ground acceleration within a defined period of time, for example, a probability of 2% in 50 years.
Description: U.S. States (Generalized) represents the 50 states and the District of Columbia of the United States. Data for granitic rock in the contiguous United States were obtained from Garrity and Soller (2009), a digital database of the geology of North America. Granitic, or crystalline, rocks in the GIS database are broadly divided into granitic (igneous) or gneissic (metamorphic) rock