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Colored shaded-relief bathymetry, acoustic backscatter, and selected perspective views of the northern part of the California Continental Borderland, southern California Colored shaded-relief bathymetry, acoustic backscatter, and selected perspective views of the northern part of the California Continental Borderland, southern California
The California Continental Borderland is the complex continental margin in southern California that extends from Point Conception southward into northern Baja California (Fisher and others, 2009). This colored shaded-relief bathymetry map of the northern continental borderland in southern California was generated primarily from multibeam-echosounder data collected by the University of...
Stratigraphic cross sections of the Mowry Shale and associated strata in the Wind River Basin, Wyoming Stratigraphic cross sections of the Mowry Shale and associated strata in the Wind River Basin, Wyoming
The Wind River Basin in Wyoming is one of many structural and sedimentary basins that formed in the Rocky Mountain foreland during the Laramide orogeny in the latest Cretaceous through the early Eocene. The basin (bounded by the Washakie, Owl Creek, and Bighorn uplifts on the north, the Casper arch on the east, the Granite Mountains uplift on the south, and Wind River uplift on the west)
Delineating the Pierre Shale from geophysical surveys within and near Ellsworth Air Force Base, South Dakota, 2019 Delineating the Pierre Shale from geophysical surveys within and near Ellsworth Air Force Base, South Dakota, 2019
The U.S. Geological Survey, in cooperation with the U.S. Air Force Civil Engineering Center, investigated the use of surface geophysical methods to delineate the top of the Cretaceous Pierre Shale along survey transects in selected areas within and near Ellsworth Air Force Base, South Dakota. Two complementary geophysical methods—electrical resistivity and passive seismic—were used along...
Surficial geology of the northern San Luis Valley, Saguache, Fremont, Custer, Alamosa, Rio Grande, Conejos, and Costilla Counties, Colorado Surficial geology of the northern San Luis Valley, Saguache, Fremont, Custer, Alamosa, Rio Grande, Conejos, and Costilla Counties, Colorado
The San Luis Valley and associated underlying basin of south-central Colorado and north-central New Mexico is the largest structural and hydrologic basin of the Rio Grande Rift and fluvial system. The surrounding San Juan and Sangre de Cristo Mountains reveal evidence of widespread volcanism and transtensional tectonism beginning in the Oligocene and continuing to the present, as seen in...
June 08, 2021—Kīlauea summit thermal map June 08, 2021—Kīlauea summit thermal map
June 08, 2021—Kīlauea summit thermal map constructed from aerial imagery
May 28, 2021—Kīlauea summit contour map May 28, 2021—Kīlauea summit contour map
May 28, 2021—Kīlauea summit contour map showing lava lake level and topographic profiles across the caldera
May 13, 2021—Rise of the Halema‘uma‘u lava lake May 13, 2021—Rise of the Halema‘uma‘u lava lake
Digital elevation models (DEMs) created from photos taken during helicopter overflights of Kīlauea summit.
March 4, 2021—Kīlauea 2018 lower East Rift Zone thermal map March 4, 2021—Kīlauea 2018 lower East Rift Zone thermal map
A thermal map of Kīlauea Volcano's 2018 lower East Rift Zone fissures and steaming area.
May 13, 2021—Halema‘uma‘u eruption Digital Elevation Model May 13, 2021—Halema‘uma‘u eruption Digital Elevation Model
HVO uses regular Kīlauea summit helicopter overflights of Halema‘uma‘u crater to create digital elevation models (DEMs) of the crater.
May 13, 2021—Kīlauea summit eruption thermal map May 13, 2021—Kīlauea summit eruption thermal map
May 13, 2021—Kīlauea summit eruption thermal map constructed from aerial imagery
May 13, 2021—Kīlauea summit eruption thermal map compilation May 13, 2021—Kīlauea summit eruption thermal map compilation
A compilation of nine thermal maps created for the ongoing eruption in Halema‘uma‘u, at the summit of Kīlauea, showing the evolution of the lava lake.
Surface Rupture Map of the 2020 M 6.5 Monte Cristo Range earthquake, Esmeralda and Mineral counties, Nevada Surface Rupture Map of the 2020 M 6.5 Monte Cristo Range earthquake, Esmeralda and Mineral counties, Nevada
The 15 May 2020, M6.5 Monte Cristo Range earthquake was the largest earthquake in Nevada in over 66 years and occurred in a sparsely populated area of western Nevada about 74 km southeast of the town of Hawthorne. The earthquake produced surface rupture distributed across a 28-km-long zone along the eastward projection of the Candelaria fault in the Mina deflection of the central Walker...