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Geologic map of Morrill County, Nebraska Geologic map of Morrill County, Nebraska
No abstract available.
Maps of upper Mississippi embayment Paleozoic and Precambrian rocks Maps of upper Mississippi embayment Paleozoic and Precambrian rocks
The Mississippi Embayment regional seismic hazard (Fuller, 1912; Nuttli, 1973, 1982, 1983), associated with the New Madrid seismic zone (NMSZ) is attributed to displacement on seismogenic structures primarily within the failed Reelfoot rift (Burke and Dewey, 1973; Ervin and McGinnis, 1975; Hildenbrand, 1977; Johnston and Shedlock, 1992). Hildenbrand and others (1977) and Hildenbrand...
Maps showing gas-hydrate distribution off the east coast of the United States Maps showing gas-hydrate distribution off the east coast of the United States
These maps present the inferred distribution of natural-gas hydrate within the sediments of the eastern United States continental margin (Exclusive Economic Zone) in the offshore region from Georgia to New Jersey (fig. 1). The maps, which were created on the basis of seismic interpretations, represent the first attempt to map volume estimates for gas hydrate. Gas hydrate forms a large...
Geologic map and structure sections of the Clear Lake Volcanics, Northern California Geologic map and structure sections of the Clear Lake Volcanics, Northern California
The Clear Lake Volcanics are located in the California Coast Ranges about 150 km north of San Francisco. This Quaternary volcanic field has erupted intermittently since 2.1 million years ago. This volcanic field is considered a high-threat volcanic system (Ewert and others, 2005) The adjacent Geysers geothermal field, largest power-producing geothermal field in the world, is powered by...