U.S. Geological Survey (USGS) <http://www.usgs.gov/>, Coastal and Marine Geology Program (CMGP) <http://marine.usgs.gov/> 20130609 Menlo Park, CA U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov> http://walrus.wr.usgs.gov/infobank/gos/m-1-81-np.fmeta.xml http://walrus.wr.usgs.gov/infobank/m/m181np/html/m-1-81-np.meta.html United States Geological Survey, Menlo Park, California,Scripps Institution of Oceanography. Chief Scientists: Peter Lonsdale, Roland Von Huene, Gregory Moore. Geophysical data (echosounder, subbottomprofiler, sidescansonar, bottomtransponder) of field activity M-1-81-NP in Middle America Trench, off Guatemala from 09/00/1981 to 09/00/1981, http://walrus.wr.usgs.gov/infobank/m/m181np/html/m-1-81-np.meta.html. These data and information are intended for science researchers, students from elementary through college, policy makers, and general public. Equipment Used - echosounder 125khz narrowbeam bathy profiler subbottomprofiler 6khz bottom penetration profiler sidescansonar side-looking sonar bottomtransponder Publications - Kurnosov, Victor B., Murdmaa, Ivar O., Kazakova, Vera, Mikhina, Vladlena, and Shevchenko, Alla Ya, 1982, Mineralogy of sediments from the Middle America Trench (Guatemala transect), in Orlofsky, Susan, ed., Initial Reports of the Deep Sea Drilling Project covering Leg 67 of the cruises of the drilling vessel Glomar Challenger, Manzanillo, Mexico to Puntarenas, Costa Rica: Initial Reports of the Deep Sea Drilling Project, v. 67, p. 515-528.<BR> Similar information is available for thousands of other USGS/CMG-related Activities. If known, available are Activity-specific navigation, gravity, magnetics, bathymetry, seismic, and sampling data; track maps; and equipment information; as well as summary overviews, crew lists, and information about analog materials. If available, access to physical samples is described in the "WR CMG Sample Distribution Policy" at: http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html Primary access to the USGS/CMG Information Bank's digital data, analog data, and metadata is provided through... http://walrus.wr.usgs.gov/infobank/ This page accomodates a variety of search approaches (e.g., by platform, by region, by scientist, by equipment type, etc.). 19810900 19810900 ground condition Complete As needed -119.75000 -75.25000 32.75000 6.25000 ISO 19115 Topic Category geoscientificinformation oceans Global Change Master Directory (GCMD) EARTH SCIENCE > OCEANS USGS CMG InfoBank Marine Geology USGS CMG InfoBank Central Pacific Ocean Middle America Trench, off Guatemala North Pacific Ocean Northern Pacific Ocean Physical materials are under controlled on-site access. If available, access to physical samples is described in the "WR CMG Sample Distribution Policy" at: http://walrus.wr.usgs.gov/infobank/programs/html/main/sample-dist-policy.html Please recognize the U.S. Geological Survey (USGS) as the source of this information. Physical materials are under controlled on-site access. Some USGS information accessed through this means may be preliminary in nature and presented without the approval of the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the responsibility of the user. This information is not intended for navigational purposes. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov> Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html> InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html> mailing and physical address

USGS, MailStop 999, 345 Middlefield Road

Menlo Park CA 94025-3561 USA (650) 329-5055 (650) 329-5190 infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov> Peter Lonsdale (Chief Scientist, Scripps); Roland Von Huene (Chief Scientist, USGS Western Region); Gregory Moore (Chief Scientist, Scripps); Arsenault (Ship Captain, Melville) Digital, ASCII U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov> Unknown Menlo Park, CA U.S. Geological Survey (USGS) <http://www.usgs.gov> Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov> Kurnosov, Victor B., Murdmaa, Ivar O., Kazakova, Vera, Mikhina, Vladlena, and Shevchenko, Alla Ya, 1982, Mineralogy of sediments from the Middle America Trench (Guatemala transect), in Orlofsky, Susan, ed., Initial Reports of the Deep Sea Drilling Project covering Leg 67 of the cruises of the drilling vessel Glomar Challenger, Manzanillo, Mexico to Puntarenas, Costa Rica: Initial Reports of the Deep Sea Drilling Project, v. 67, p. 515-528. http://walrus.wr.usgs.gov/infobank/ Identified as best available version. Unspecified Start and end date/times of data >Navigation Data (m-1-81-np.050 [SINS]) >YYYYMMDDHHMMSST YYYYMMDDHHMMSST >198101010101000 198101050101000 >YYYYMMDDHHMMSST YYYYMMDDHHMMSST Unspecified Unspecified Navigation Data Unknown 20110113 U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov> Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html> InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html> mailing and physical address

USGS, MailStop 999, 345 Middlefield Road

Menlo Park CA 94025-3561 USA (650) 329-5055 (650) 329-5190 infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov> Middle America Trench, off Guatemala Point Point 0.00001 0.00001 Decimal degrees North American Datum of 1927 Clarke 1866 6378206.4 294.98 Local surface 0.1 meters Attribute values Navigation with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/nav.html> U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov> Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html> InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html> mailing and physical address

USGS, MailStop 999, 345 Middlefield Road

Menlo Park CA 94025-3561 USA (650) 329-5055 (650) 329-5190 infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov> Downloadable Data M-1-81-NP data set <http://walrus.wr.usgs.gov/infobank/m/m181np/html/m-1-81-np.meta.html> Please recognize the U.S. Geological Survey (USGS) as the source of this information. Physical materials are under controlled on-site access. Some USGS information accessed through this means may be preliminary in nature and presented without the approval of the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the responsibility of the user. This information is not intended for navigational purposes. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. ASCII No compression applied 0.1 http://walrus.wr.usgs.gov/infobank/m/m181np/html/m-1-81-np.nav.html None 20130609 U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov> Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html> InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html> mailing and physical address

USGS, MailStop 999, 345 Middlefield Road

Menlo Park CA 94025-3561 USA (650) 329-5055 (650) 329-5190 infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov> FGDC Content Standards for Digital Geospatial Metadata <http://www.fgdc.gov/> FGDC-STD-001-1998 <http://www.its.nbs.gov/nbs/meta/meta.html> universal time none none