Research Geologist
Pacific Coastal and Marine Science Center
Email:
mmcgann@usgs.gov
Office Phone:
650-329-4979
Fax:
650-329-5441
ORCID:
0000-0002-3057-2945
Supervisor:
Amy East
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This part of the data release is a spreadsheet including the name, location, and length of sediment cores collected in 2009 offshore from Palos Verdes, California. It is one of seven files included in this U.S. Geological Survey data release that include data from a set of sediment cores acquired from the continental slope, offshore Los Angeles and the Palos Verdes Peninsula, adjacent to the Palos Verdes Fault. Gravity cores were collected by the USGS in 2009 (cruise ID S-I2-09-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=SI209SC), and vibracores were collected with the Monterey Bay Aquarium Research Institute’s remotely operated vehicle (ROV) Doc Ricketts in 2010 (cruise ID W-1-10-SC; http://cmgds.marine.usgs.gov/fan_info.php?fan=W110SC)....
Categories: Data;
Tags: Distributions,
Holocene,
Los Angeles,
Palos Verdes Peninsula,
Pleistocene, All tags...
Quaternary,
San Gabriel Canyon,
Substrate,
geoscientificInformation,
gravity coring,
ocean processes,
oceans,
sediment,
sediment composition,
sediment transport,
sediment transport,
sedimentation, Fewer tags
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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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Landslides have been mapped offshore of Southern California. Polygons were mapped from visual interpretation of high-resolution multibeam echosounder data (MBES), single-beam echosounder data, and seismic reflection data.
Categories: Data;
Tags: CMHRP,
Coastal and Marine Hazards and Resources Program,
Distributions,
PCMSC,
Pacific Coastal and Marine Science Center, All tags...
Pacific Ocean,
State of California,
U.S. Geological Survey,
USGS,
United States of America,
earth characteristics,
earthquake effects,
geologic mapping,
geologic processes,
geological features,
geology,
geophysics,
geoscientificInformation,
geospatial datasets,
hazards,
hazards and disasters,
landslides,
marine geology,
marine geophysics,
natural agents of coastal change,
oceanic lithosphere,
oceanographic observations,
oceans,
scientific interpretation,
sea-floor characteristics, Fewer tags
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The urbanized area of downtown Menlo Park is subject to persistent flooding and sediment deposition by San Francisquito Creek in South San Francisco Bay. To mitigate these events, a suite of cores was collected in 2002 at the mouth of the creek to determine sediment depositional rates on the delta. One of those cores (721-1) was selected for microbiological (pollen, diatoms, and foraminifera) and geochemical analyses to reconstruct a depositional record over the past two millennia. This data release provides radiocarbon dates, census counts of benthic foraminifera, diatoms, and palynomorphs, and the measurement of anthropogenic metals and other elements in sediments from this core.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: CMHRP,
Coastal and Marine Hazards and Resources Program,
Habitat,
Hooks Point,
Invertebrates, All tags...
PCMSC,
Pacific Coastal and Marine Science Center,
San Francisco Bay,
San Francisquito Creek,
Substrate,
U.S. Geological Survey (USGS),
USGS,
animals,
bay,
benthic foraminifera,
biota,
carbon-14 analysis,
chemical analysis,
diatoms,
environment,
foraminifera,
geochemistry,
geoscientificInformation,
gravity coring,
marine chemistry,
mass spectroscopy,
mercury analysis,
none,
organisms,
palynology,
protists,
radiometric dating,
sediment deposition,
sediment geochemistry,
sediment-pollutant interaction,
society, Fewer tags
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This data release provides the locations and certain key metrics of landslide features offshore southern California, including landslide perimeters, scarps, evacuation zones, debris aprons, and slide-prone areas in geographic information system (GIS) shapefile format. The offshore region of southern California is a tectonically active area that includes more than 20 fault-bounded basins and ridges that are subject to various types of mass-wasting and landslide processes. The collection of high-resolution seafloor mapping data offshore southern California, mostly within the last 25 years, provide a new data set that forms the basis for the identification and mapping of landslides and slide-related features throughout...
Categories: Data;
Tags: CMHRP,
Coastal and Marine Hazards and Resources Program,
Distributions,
Geomorphology,
Geophysics, All tags...
Marine Geology,
PCMSC,
Pacific Coastal and Marine Science Center,
Pacific Ocean,
State of California,
U.S. Geological Survey,
USGS,
United States of America,
earth characteristics,
earthquake effects,
geologic mapping,
geologic processes,
geological features,
geology,
geophysics,
geoscientificInformation,
geospatial datasets,
hazards,
hazards and disasters,
landslides,
marine geology,
marine geophysics,
natural agents of coastal change,
oceanic lithosphere,
oceanographic observations,
oceans,
scientific interpretation,
sea-floor characteristics, Fewer tags
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