Research Geophysicist
Pacific Coastal and Marine Science Center
Email:
dbrothers@usgs.gov
Office Phone:
831-460-7460
Fax:
831-427-4748
ORCID:
0000-0001-7702-157X
Location
2885 Mission St Occupancy Agreement # Aca12594
400 Natural Bridges Drive
Santa Cruz
, CA
95060
US
Supervisor:
Jessica R Lacy
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High-resolution multichannel minisparker and chirp seismic-reflection data were collected in August of 2015 to explore marine geologic hazards of inland waterways of southeastern Alaska. Sub-bottom profiles were acquired in the inland waters between Glacier Bay and Juneau, including Cross Sound and Chatham Strait. High-resolution seismic-reflection profiles were acquired to assess evidence for active seabed faulting and submarine landslide hazards. The data were collected aboard the U.S. Geological Survey R/V Alaskan Gyre. Chirp data were acquired using a tow-fish Edgetech 512 chirp subbottom profiler, and multichannel (mcs) minisparker data were acquired using a 500-Joule minisparker source and a 48-channel Geometrics...
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The U.S. Geological Survey (USGS) collected high-resolution multichannel sparker, minisparker and chirp seismic-reflection data in November 2014, from offshore Catalina and Santa Cruz basins. The survey was designed to image faults and folds associated with movement on the faults in offshore southern California, including the Catalina, Catalina Ridge, San Clemente, and San Diego Trough faults. Data were collected aboard the Scripps Institution of Oceanography R/V Robert Gordon Sproul. Subbottom acoustic penetration spans several hundred meters and is variable by location. This data release contains processed digital SEG-Y. The seismic-reflection profiles of bedrock, sediment deposits and tectonic structure provide...
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High-resolution acoustic backscatter data, bathymetry data, single channel minisparker seismic-reflection data were collected by the U.S. Geological Survey (USGS) and the Alaska Department of Fish and Game in May of 2014 southwest of Chenega Island and southwest of Montague Island, Alaska. Data were collected aboard the Alaska Department of Fish and Game vessel, R/V Solstice, during USGS field activity 2014-622-FA, using a pole mounted 100-kHz Reson 7111 multibeam echosounder, a 500 Joule SIG 2-mille minisparker sound source and a single channel streamer.
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This part of the data release is a spreadsheet including radiocarbon sample information and calibrated ages of sediment cores collected in 2014 from the northern flank of Monterey Canyon, offshore California. It is one of five files in this U.S. Geological Survey data release that include data from a set of sediment cores acquired from the continental slope, north of Monterey Canyon, offshore central California. Vibracores and push cores were collected with the Monterey Bay Aquarium Research Institute’s (MBARI’s) remotely operated vehicle (ROV) Doc Ricketts in 2014 (USGS cruise ID 2014-615-FA). One spreadsheet (NorthernFlankMontereyCanyonCores_Info.xlsx) contains core name, location, and length. One spreadsheet...
Categories: Data;
Tags: Distributions,
Holocene,
Monterey Canyon,
Pleistocene,
Quaternary, All tags...
State of California,
Substrate,
geoscientificInformation,
ocean processes,
oceans,
push coring,
sediment,
sediment composition,
sediment transport,
sediment transport,
sedimentation,
vibracoring, Fewer tags
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This data release contains processed high-resolution multichannel sparker seismic-reflection (MCS) data that were collected aboard Humboldt State University’s R/V Coral Sea in October of 2018 on U.S. Geological Survey cruise 2018-658-FA on the shelf and slope between Cape Blanco, Oregon, and Cape Mendocino, California. MCS data were collected to characterize quaternary deformation and sediment dynamics along the southern Cascadia margin.
Tags: Bathymetry and Elevation,
Bear Valley,
Blanco Fracture Zone,
Blanco Saddle,
CMHRP, All tags...
Cape Blanco,
City of Eureka,
Coastal and Marine Hazards and Resources Program,
Continental Margin,
Crescent City,
Eel Canyon,
Eel River,
Geophysics,
Gorda Basin,
Marine Geology,
Mattole Canyon,
Mendocino Escarpment,
Mendocino Fracture Zone,
Mendocino Ridge,
PCMSC,
Pacific Coastal and Marine Science Center,
Pacific Ocean,
Seismology,
State of California,
State of Oregon,
Stratigraphy,
Structural Geology,
Trinidad Canyon,
U.S. Geological Survey,
USGS,
geoscientificInformation,
geospatial datasets,
marine geophysics,
oceans,
seismic reflection profiling,
sparker,
sub-bottom profiling, Fewer tags
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