Dataset Identification:
Resource Abstract:
- description: In summer 2014, the U.S. Geological Survey conducted a 21-day geophysical program in deep water along the Atlantic
continental margin by using R/V Marcus G. Langseth (Field Activity Number 2014-011-FA). The purpose of the seismic program
was to collect multichannel seismic reflection and refraction data to determine sediment thickness. These data enable the
United States to delineate its Extended Continental Shelf (ECS) along the Atlantic margin. The same data can also be used
to understand large submarine landslides and therefore assess their potential tsunami hazard for infrastructure and communities
living along the eastern seaboard. Supporting geophysical data were collected as marine magnetic data, gravity data, 3.5-kilohertz
shallow seismic reflections, multibeam echo sounder bathymetry, and multibeam backscatter. The survey was conducted from water
depths of approximately 1,500 meters to abyssal seafloor depths greater than 5,000 meters. Approximately 2,761 kilometers
of multi-channel seismic data was collected along with 30 sonobuoy profiles. This field program had two primary objectives:
(1) to collect some of the data necessary to establish the outer limits of the U.S. Continental Shelf, or Extended Continental
Shelf, as defined by Article 76 of the United Nations Convention of the Law of the Sea and (2) to study the sudden mass transport
of sediments down the continental margin as submarine landslides that pose potential tsunamigenic hazards to the Atlantic
and Caribbean coastal communities. More information regarding the field activity can be found in the cruise report:; abstract:
In summer 2014, the U.S. Geological Survey conducted a 21-day geophysical program in deep water along the Atlantic continental
margin by using R/V Marcus G. Langseth (Field Activity Number 2014-011-FA). The purpose of the seismic program was to collect
multichannel seismic reflection and refraction data to determine sediment thickness. These data enable the United States to
delineate its Extended Continental Shelf (ECS) along the Atlantic margin. The same data can also be used to understand large
submarine landslides and therefore assess their potential tsunami hazard for infrastructure and communities living along the
eastern seaboard. Supporting geophysical data were collected as marine magnetic data, gravity data, 3.5-kilohertz shallow
seismic reflections, multibeam echo sounder bathymetry, and multibeam backscatter. The survey was conducted from water depths
of approximately 1,500 meters to abyssal seafloor depths greater than 5,000 meters. Approximately 2,761 kilometers of multi-channel
seismic data was collected along with 30 sonobuoy profiles. This field program had two primary objectives: (1) to collect
some of the data necessary to establish the outer limits of the U.S. Continental Shelf, or Extended Continental Shelf, as
defined by Article 76 of the United Nations Convention of the Law of the Sea and (2) to study the sudden mass transport of
sediments down the continental margin as submarine landslides that pose potential tsunamigenic hazards to the Atlantic and
Caribbean coastal communities. More information regarding the field activity can be found in the cruise report:
Citation
- Title Marine magnetics data collected by the U.S. Geological Survey in U.S. Atlantic Seaboard in 2014 (Geographic, WGS84, point
shapefile 2014-011-FA_mag.shp).
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- creation Date
2018-05-20T02:33:25.196792
Resource language:
Processing environment:
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Metadata data stamp:
2018-08-06T19:49:04Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-06T19:49:04Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
-
- Contact information
-
-
- Address
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- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:23b7823f-f818-4857-a203-9e461c5f6a6c
Metadata record format is ISO19139 XML (MD_Metadata)