Patrick Hart
Geophysicist Emeritus with the USGS Pacific Coastal and Marine Science Center
Science and Products
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Late Pleistocene to Holocene sedimentation and hydrocarbon seeps on the continental shelf of a steep, tectonically active margin, southern California, USA Late Pleistocene to Holocene sedimentation and hydrocarbon seeps on the continental shelf of a steep, tectonically active margin, southern California, USA
Small, steep, uplifting coastal watersheds are prolific sediment producers that contribute significantly to the global marine sediment budget. This study illustrates how sedimentation evolves in one such system where the continental shelf is largely sediment-starved, with most terrestrial sediment bypassing the shelf in favor of deposition in deeper basins. The Santa Barbara-Ventura...
Authors
Amy Draut, Patrick Hart, T.D. Lorenson, Holly F. Ryan, Florence Wong, Ray Sliter, James Conrad
High-resolution chirp and mini-sparker seismic-reflection data from the southern California continental shelf — Gaviota to Mugu Canyon High-resolution chirp and mini-sparker seismic-reflection data from the southern California continental shelf — Gaviota to Mugu Canyon
The U.S. Geological Survey (USGS) collected high-resolution shallow seismic-reflection data in September, 2007, and June-July, 2008, from the continental shelf offshore of southern California between Gaviota and Mugu Canyon, in support of the California's State Waters Mapping Program. Data were acquired using SIG 2mille mini-sparker and Edgetech chirp 512 instruments aboard the R/V...
Authors
Ray Sliter, Peter J. Triezenberg, Patrick Hart, Amy Draut, William Normark, James Conrad
High-resolution chirp seismic reflection data acquired from the Cap de Creus shelf and canyon area, Gulf of Lions, Spain in 2004 High-resolution chirp seismic reflection data acquired from the Cap de Creus shelf and canyon area, Gulf of Lions, Spain in 2004
Seismic reflection data were collected from the Cap de Creus shelf and canyon in the southwest portion of the Gulf of Lions in October 2004. The data were acquired using the U.S. Geological Survey`s (USGS) high-resolution Edgetech CHIRP 512i seismic reflection system aboard the R/V Oceanus. Data from the shipboard 3.5 kHz echosounder were also collected but are not presented here. The...
Authors
Eric E. Grossman, Patrick Hart, Michael Field, Peter Triezenberg
GIS of selected geophysical and core data in the northern Gulf of Mexico continental slope collected by the U.S. Geological Survey GIS of selected geophysical and core data in the northern Gulf of Mexico continental slope collected by the U.S. Geological Survey
Since 1982 the U. S. Geological Survey (USGS) has collected a large amount of surficial and shallow subsurface geologic information in the deep-water parts of the US EEZ in the northern Gulf of Mexico. These data include digital sidescan sonar imagery, digital seismic-reflection data, and descriptions and analyses of piston and gravity cores. The data were collected during several...
Authors
David Twichell, VeeAnn Cross, Valerie Paskevich, Deborah Hutchinson, William Winters, Patrick Hart
High-resolution multichannel seismic-reflection data acquired in the northern Gulf of Mexico, 2003 High-resolution multichannel seismic-reflection data acquired in the northern Gulf of Mexico, 2003
No abstract available.
Authors
Patrick Hart, Deborah Hutchinson, Myung Lee
Seismic reflection and refraction data acquired in Canada Basin, Northwind Ridge and Northwind Basin, Arctic Ocean in 1988, 1992 and 1993 Seismic reflection and refraction data acquired in Canada Basin, Northwind Ridge and Northwind Basin, Arctic Ocean in 1988, 1992 and 1993
Seismic reflection and refraction data were collected in generally ice-covered waters of the Canada Basin and the eastern part of the Chukchi Continental Borderland of the Amerasia Basin, Arctic Ocean, during the late summers of 1988, 1992, and 1993. The data were acquired from a Polar class icebreaker, the U.S. Coast Guard Cutter Polar Star, using a seismic reflection system designed by...
Authors
Arthur Grantz, Patrick Hart, Steven D. May
Science and Products
Filter Total Items: 20
No Result Found
Filter Total Items: 68
Late Pleistocene to Holocene sedimentation and hydrocarbon seeps on the continental shelf of a steep, tectonically active margin, southern California, USA Late Pleistocene to Holocene sedimentation and hydrocarbon seeps on the continental shelf of a steep, tectonically active margin, southern California, USA
Small, steep, uplifting coastal watersheds are prolific sediment producers that contribute significantly to the global marine sediment budget. This study illustrates how sedimentation evolves in one such system where the continental shelf is largely sediment-starved, with most terrestrial sediment bypassing the shelf in favor of deposition in deeper basins. The Santa Barbara-Ventura...
Authors
Amy Draut, Patrick Hart, T.D. Lorenson, Holly F. Ryan, Florence Wong, Ray Sliter, James Conrad
High-resolution chirp and mini-sparker seismic-reflection data from the southern California continental shelf — Gaviota to Mugu Canyon High-resolution chirp and mini-sparker seismic-reflection data from the southern California continental shelf — Gaviota to Mugu Canyon
The U.S. Geological Survey (USGS) collected high-resolution shallow seismic-reflection data in September, 2007, and June-July, 2008, from the continental shelf offshore of southern California between Gaviota and Mugu Canyon, in support of the California's State Waters Mapping Program. Data were acquired using SIG 2mille mini-sparker and Edgetech chirp 512 instruments aboard the R/V...
Authors
Ray Sliter, Peter J. Triezenberg, Patrick Hart, Amy Draut, William Normark, James Conrad
High-resolution chirp seismic reflection data acquired from the Cap de Creus shelf and canyon area, Gulf of Lions, Spain in 2004 High-resolution chirp seismic reflection data acquired from the Cap de Creus shelf and canyon area, Gulf of Lions, Spain in 2004
Seismic reflection data were collected from the Cap de Creus shelf and canyon in the southwest portion of the Gulf of Lions in October 2004. The data were acquired using the U.S. Geological Survey`s (USGS) high-resolution Edgetech CHIRP 512i seismic reflection system aboard the R/V Oceanus. Data from the shipboard 3.5 kHz echosounder were also collected but are not presented here. The...
Authors
Eric E. Grossman, Patrick Hart, Michael Field, Peter Triezenberg
GIS of selected geophysical and core data in the northern Gulf of Mexico continental slope collected by the U.S. Geological Survey GIS of selected geophysical and core data in the northern Gulf of Mexico continental slope collected by the U.S. Geological Survey
Since 1982 the U. S. Geological Survey (USGS) has collected a large amount of surficial and shallow subsurface geologic information in the deep-water parts of the US EEZ in the northern Gulf of Mexico. These data include digital sidescan sonar imagery, digital seismic-reflection data, and descriptions and analyses of piston and gravity cores. The data were collected during several...
Authors
David Twichell, VeeAnn Cross, Valerie Paskevich, Deborah Hutchinson, William Winters, Patrick Hart
High-resolution multichannel seismic-reflection data acquired in the northern Gulf of Mexico, 2003 High-resolution multichannel seismic-reflection data acquired in the northern Gulf of Mexico, 2003
No abstract available.
Authors
Patrick Hart, Deborah Hutchinson, Myung Lee
Seismic reflection and refraction data acquired in Canada Basin, Northwind Ridge and Northwind Basin, Arctic Ocean in 1988, 1992 and 1993 Seismic reflection and refraction data acquired in Canada Basin, Northwind Ridge and Northwind Basin, Arctic Ocean in 1988, 1992 and 1993
Seismic reflection and refraction data were collected in generally ice-covered waters of the Canada Basin and the eastern part of the Chukchi Continental Borderland of the Amerasia Basin, Arctic Ocean, during the late summers of 1988, 1992, and 1993. The data were acquired from a Polar class icebreaker, the U.S. Coast Guard Cutter Polar Star, using a seismic reflection system designed by...
Authors
Arthur Grantz, Patrick Hart, Steven D. May