Sediment Cores
Sediment Cores
Filter Total Items: 11
USGS Law of the Sea
The USGS Law of the Sea project helps to determine the outer limits of the extended continental shelf (ECS) of the United States. The ECS is that portion of the continental shelf beyond 200 nautical miles. It is an important maritime zone that holds many resources and vital habitats for marine life. Its size may exceed one million square kilometers, encompassing areas in the Arctic, Atlantic...
Cascadia Subduction Zone Marine Geohazards
Societal Issue: Uncertainty related to rupture extent, slip distribution, and recurrence of past subduction megathrust earthquakes in the Pacific Northwest (northern CA, OR, WA, and southern BC) leads to ambiguity in earthquake and tsunami hazard assessments and hinders our ability to prepare for future events.
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Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, 3-D CT Core Imaging Laboratory, Core Preparation and Analysis Laboratory and Sample Repositories, Multi-Sensor Core Logger Laboratory, Deep Sea Exploration, Mapping and Characterization, Subduction Zone Science
PCMSC MarFac Field Equipment and Capabilities
Learn about the USGS Pacific Coastal and Marine Science Center Marine Facility’s vast array of field equipment, sampling devices, and mapping systems, and our capabilities. Our engineers, designers, mechanics, and technicians have also designed and developed some of the specialized field equipment we use in field operations in the nearshore, in the deep sea, and on land.
Drag and sediment transport: conditions at the bottom boundary
Research on bed sediment grain size, bedform morphology, vegetation characteristics, and sediment resuspension and transport.
Tsunami Hazards, Modeling, and the Sedimentary Record
Basic research to develop the geologic record of paleotsunamis and improve the ability to interpret that record is needed to mitigate tsunami risk in the U.S.
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Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, 3-D CT Core Imaging Laboratory, Core Preparation and Analysis Laboratory and Sample Repositories, Multi-Sensor Core Logger Laboratory, Sediment Lab Suite and Carbon Analysis Laboratory, Subduction Zone Science
Piston coring rig
The USGS Pacific Coastal and Marine Science Center’s Marine Facility recently acquired this floating coring rig that features a motorized piston coring unit and is capable of collecting 20-meter sediment cores in calm waters.
VibeCore DW
The VibeCore DW is a small, portable, 24v DC vibracorer
Rossfelder vibracorer
USGS uses the vibracorer is best in locations where the seafloor, lakebed, bay-floor, or river-bottom sediment is unconsolidated and waterlogged.
Jumbo piston corer
Piston corers are generally used in areas with soft sediment, such as clay.
GOMEX box corer
PCMSC uses the GOMEX box corer for collecting soft, deep-water sediment samples.
Preliminary Analysis of Sedimentary Deposits from the July 17, 1998 Papua New Guinea Tsunami
Preliminary analysis of sedimentary deposits from the tsunami caused by the July 17, 1998 Papua New Guinea earthquake.