Scientist Emerita
Email:
lstern@usgs.gov
Office Phone:
650-329-4811
ORCID:
0000-0003-3440-5674
Location
345 Middlefield Road
Menlo Park
, CA
94025
US
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One of the primary goals of South Korea’s second Ulleung Basin Gas Hydrate Expedition (UBGH2) was to examine the geotechnical properties of the marine sediment associated with methane gas hydrate occurrences found offshore of eastern Korea in the Ulleung Basin, East Sea. Methane gas hydrate is a naturally occurring crystalline solid that sequesters methane in individual molecular cages formed by a lattice of water molecules. During UBGH2, concentrated gas hydrate was found in two sedimentary environments: gas hydrate was found in thin, coarse-grained sediment layers interbedded with fine-grained sediment (fines, such as clays and muds) and as veins of essentially pure gas hydrate within predominantly fine-grained...
Categories: Data;
Tags: CMHRP,
Coastal and Marine Hazards and Resources Program,
East Sea,
Geophysics,
South Korea, All tags...
U.S. Geological Survey,
USGS,
Ulleung Basin,
WHCMSC,
Woods Hole Coastal and Marine Science Center,
brine,
core analysis,
deionized water,
diatoms,
earth material properties,
fine-grained sediment,
gas hydrate resources,
geoscientificInformation,
laboratory experiments,
oceans,
settling,
soil sciences, Fewer tags
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One goal of Korea’s second Ulleung Basin Gas Hydrate Expedition, UBGH2, is to examine geotechnical properties of the marine sediment associated with methane gas hydrate occurrences found offshore eastern Korea in the Ulleung Basin, East Sea. Methane gas hydrate is a naturally occurring crystalline solid that sequesters methane in individual molecular cages formed by a lattice of water molecules. Offshore Korea, gas hydrate is found in thin, coarse-grained sediment layers that are interbedded with fine-grained sediment. Methane gas hydrate is a potential energy resource, but whether extracting methane from gas hydrate in these layered marine environments is technically and economically viable remains an open research...
Categories: Data;
Tags: CMHRP,
Coastal and Marine Hazards and Resources Program,
East Sea,
Energy Resources,
Marine Geology, All tags...
Soil Sciences,
South Korea,
U.S. Geological Survey,
USGS,
Ulleung Basin,
WHCMSC,
Woods Hole Coastal and Marine Science Center,
brine,
core analysis,
deionized water,
earth material properties,
fine-grained sediment,
gas hydrate resources,
geoscientificInformation,
kerosene,
laboratory experiments,
oceans,
settling,
soil sciences, Fewer tags
|
One goal of the Indian National Gas Hydrate Program's NGHP-02 expedition was to examine the geomechanical response of marine sediment to the extraction of methane from gas hydrate found offshore eastern India in the Bay of Bengal. Methane gas hydrate is a naturally occurring crystalline solid that sequesters methane in individual molecular cages in a lattice of water molecules. Methane gas hydrate is a potential energy resource, but whether extracting methane from gas hydrate in the marine subsurface is technically and economically viable remains an open research topic as of 2018. This data release provides insight about a poorly quantified aspect of this process: the reaction of fine-grained sediment particles...
Categories: Data;
Tags: Bay of Bengal,
CMGP,
Coastal and Marine Geology Program,
Indian Ocean,
Krishna-Godavari Basin, All tags...
U.S. Geological Survey,
USGS,
WHCMSC,
Woods Hole Coastal and Marine Science Center,
brine,
core analysis,
deionized water,
earth material properties,
fine-grained sediment,
geoscientificInformation,
kerosene,
laboratory experiments,
oceans,
settling,
soil sciences, Fewer tags
|
The safety, effectiveness and longevity of many construction and geotechnical engineering projects rely on correctly accounting for the evolution of soil properties over time. Critical sediment properties, such as compressibility, can change in response to pore-fluid chemistry changes, particularly if the sediment contains appreciable concentrations of fine-grained materials. Pore-fluid changes act at the micro scale, altering interactions between sediment particles, or between sediment particles and the pore fluid. These micro-scale alterations change how sediment fabrics and void ratios develop, which directly impacts macro-scale properties such as sediment compressibility. The goal of this study is to correlate...
Categories: Data;
Tags: CMGP,
Coastal and Marine Geology Program,
Laboratory,
U.S. Geological Survey,
U.S. Geological Survey, All tags...
USGS,
WHCMSC,
Woods Hole Coastal and Marine Science Center,
Woods Hole Coastal and Marine Science Center,
brine,
calcium carbonate,
compressibility,
consolidation,
deionized water,
diatoms,
earth material properties,
fine-grained sediment,
geoscientificInformation,
illite,
kaolin,
kerosene,
mica,
recompresibility,
silica silt,
soil sciences, Fewer tags
|
One goal of the Indian National Gas Hydrate Program's NGHP-02 expedition was to examine the geomechanical response of marine sediment to the extraction of methane from gas hydrate found offshore eastern India in the Bay of Bengal. Methane gas hydrate is a naturally occurring crystalline solid that sequesters methane in individual molecular cages in a lattice of water molecules. Methane gas hydrate is a potential energy resource, but whether extracting methane from gas hydrate in the marine subsurface is technically and economically viable remains an open research topic as of 2018. This data release provides insight about a poorly quantified aspect of this process: the reaction of fine-grained sediment particles...
Categories: Data;
Tags: Bay of Bengal,
CMGP,
Coastal and Marine Geology Program,
Indian Ocean,
Krishna-Godavari Basin, All tags...
U.S. Geological Survey,
USGS,
WHCMSC,
Woods Hole Coastal and Marine Science Center,
brine,
core analysis,
deionized water,
earth material properties,
fine-grained sediment,
gas hydrate resources,
geoscientificInformation,
kerosene,
laboratory experiments,
oceans,
settling,
soil sciences, Fewer tags
|
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