U.S. Geological Survey (USGS) <http://www.usgs.gov/>, Coastal and Marine Geology Program (CMGP) <http://marine.usgs.gov/>
20130331
Geological and Geophysical data of field activity L-9-81-AA
in Aleutian Arc, Alaska from 07/19/1981 to 08/13/1981
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/l-9-81-aa.fmeta.xml
http://walrus.wr.usgs.gov/infobank/l/l981aa/html/l-9-81-aa.meta.html
Chief Scientists: Dave Scholl, Tracy Vallier. Geological
and Geophysical data (3dot5khz, 12khz, airgun, airgunmonitor,
Burgairgun, 24channel, sonobuoy, gravity, gravitycore,
chaindredge, dopplersonar, integratednavigation, RhoRho,
transitsatellite) of field activity L-9-81-AA in Aleutian
Arc, Alaska from 07/19/1981 to 08/13/1981,
http://walrus.wr.usgs.gov/infobank/l/l981aa/html/l-9-81-aa.meta.html.
These data and information are intended for science
researchers, students from elementary through
college, policy makers, and general public.
Equipment Used -
3dot5khz 3.5 khz bathymetry
12khz 12 khz bathymetry
airgun single-channel airgun
airgunmonitor single-channel airgun monitor
Burgairgun
24channel 24-channel seismic
sonobuoy
gravity shipboard gravity
gravitycore
chaindredge
dopplersonar
integratednavigation
RhoRho
transitsatellite
Publications -
Childs, Jonathan R., Scholl, David W., and Vallier, Tracy L., 1981, Onshore and offshore studies,
Amlia Island area, Aleutian Ridge, in Albert, N.R., and Hudson, Travis, eds., The United States
Geological Survey in Alaska; accomplishments during 1979: U.S. Geological Survey Circular 0823-B,
p. 134-137.<BR>
<HR>
McCarthy, Jill, Stevenson, Andrew J., Scholl, David W., and Vallier, Tracy L., 1984, Speculations on
the petroleum geology of the accretionary body; an example from the central Aleutians: Marine and
Petroleum Geology, v. 1, no. 2, p. 151-167. <BR>
<HR>
McCarthy, Jill, and Scholl, David W., 1985, Mechanisms of subduction accretion along the
central Aleutian Trench: Geological Society of America Bulletin, v. 96, no. 6, p. 691-701.<BR>
<HR>
Harbert, W.P., Scholl, David W., Mann, D., Vallier, Tracy L., and Stevenson, Andrew J., 1982,
Geologic and tectonic history of Atka Basin, Aleutian Ridge, in American Geophysical Union
1982 fall meeting: American Geophysical Union Eos, Transactions, v. 63, no. 45, p. 1115.<BR>
<HR>
McCarthy, J., Scholl, David W., Mann, D., Vallier, Tracy L., and Stevenson, Andrew J., 1982,
Mechanisms of accretion along the Aleutian Trench, in American Geophysical Union 1982 fall
meeting: American Geophysical Union Eos, Transactions, v. 63, no. 45, p. 1115.<BR>
<HR>
Harbert, William, Scholl, David W., Vallier, Tracy L., Stevenson, Andrew J., and Mann, D.M., 1986,
Major evolutionary phases of a forearc basin of the Aleutian Terrace; relation to North Pacific
tectonic events and the formation of the Aleutian subduction complex: Boulder, CO, Geology,
v. 14, no. 9, p. 757-761.<BR>
<HR>
McCarthy, Jill, Scholl, David W., and Sleep, Norman H., 1983, Accretionary structures along
the central Aleutian Trench: American Geophysical Union Eos, Transactions, v. 64, no. 45, p. 870.<BR>
<HR>
McCarthy, Jill, 1987, Seismic reflection imaging of plate boundaries; examples from the
central Aleutians, the North Atlantic, and the Basin and Range Province of the Western U.S.:
Stanford, CA, Stanford University Ph. D. Dissertation.<BR>
<HR>
Geist, Eric L., Childs, Jonathan R., and Scholl, David W., 1987, Evolution and petroleum
geology of Amlia and Amukta intra-arc summit basins, Aleutian Ridge: Marine and Petroleum
Geology, v. 4, no. 4, p. 334-352.<BR>
<HR>
Geist, Eric L., Childs, Jonathan R., and Scholl, David W., 1985, Extensional structures
on the Aleutian Ridge, Alaska: American Geophysical Union Eos, Transactions, v. 66, no. 46,
p. 1072.<BR>
<HR>
Geist, Eric L., Childs, Jonathan R., and Scholl, David W., 1988, The origin of summit
basins of the Aleutian Ridge; implications for block rotation of an arc massif: Tectonics,
v. 7, no. 2, p. 327-341.<BR>
<HR>
Scholl, David W., Mann, Dennis M., Vallier, Tracy L., and Sliter, Ray W., 1988, Multichannel
seismic-reflection data collected in 1981 across the Aleutian Arc and Trench, Alaska:
U.S. Geological Survey Open-File Report 88-0592, 4 p. 2 sheets.<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.).
19810719
19810813
ground condition
As needed
173.58301
-165.99205
54.08144
50.11441
ISO 19115 Topic Category
geoscientificinformation
oceans
Global Change Master Directory (GCMD)
EARTH SCIENCE > OCEANS
USGS CMG InfoBank
Marine Geology
Marine Geophysics
Marine Gravity Field
Marine Magnetic Field
Magnetic Anomalies
Bathymetry
Water Depth
Seafloor Topography
Marine Seismic
USGS CMG InfoBank
AK
Alaska
Aleutian Arc
Aleutian Arc, Alaska
Aleutians
USA
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>
Aaron Dunwald (Chief Engineer);
Andy Stevenson (Geologist);
Bob Rothman (Chief Mate);
Dave Scholl (Chief Scientist);
Dennis Mann (Geophysicist);
Eric Dash (Watchstander);
Frank Johnson (Ship Captain);
George Asuncion (Electronics Technician);
Guy Cochrane (Navigator);
Jill McCarthy (Dafe Curator);
Joe Edwards (Mechanical Technician);
Jon Childs (Geophysicist);
Kaye Kinoshita (Navigator);
Margaret Keller (Geologist);
Meg Kingston (Navigator);
Paul Wenberg (Mechanical Technician);
Rick Murnane (Geochemist);
Rick Murnane (Geologist);
Roy Fields (Electronics Technician);
Tracy Vallier (Chief Scientist);
Wyn Hill (Geologist);
Wyn Hill (Geophysicist)
Digital, ASCII
U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
Unknown
USGS/CMG Information Bank <http://walrus.wr.usgs.gov/infobank/>
Menlo Park, CA
U.S. Geological Survey (USGS) <http://www.usgs.gov> Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
Childs, Jonathan R., Scholl, David W., and Vallier, Tracy L., 1981, Onshore and offshore studies,
Amlia Island area, Aleutian Ridge, in Albert, N.R., and Hudson, Travis, eds., The United States
Geological Survey in Alaska; accomplishments during 1979: U.S. Geological Survey Circular 0823-B,
p. 134-137.
McCarthy, Jill, Stevenson, Andrew J., Scholl, David W., and Vallier, Tracy L., 1984, Speculations on
the petroleum geology of the accretionary body; an example from the central Aleutians: Marine and
Petroleum Geology, v. 1, no. 2, p. 151-167.
McCarthy, Jill, and Scholl, David W., 1985, Mechanisms of subduction accretion along the
central Aleutian Trench: Geological Society of America Bulletin, v. 96, no. 6, p. 691-701.
Harbert, W.P., Scholl, David W., Mann, D., Vallier, Tracy L., and Stevenson, Andrew J., 1982,
Geologic and tectonic history of Atka Basin, Aleutian Ridge, in American Geophysical Union
1982 fall meeting: American Geophysical Union Eos, Transactions, v. 63, no. 45, p. 1115.
McCarthy, J., Scholl, David W., Mann, D., Vallier, Tracy L., and Stevenson, Andrew J., 1982,
Mechanisms of accretion along the Aleutian Trench, in American Geophysical Union 1982 fall
meeting: American Geophysical Union Eos, Transactions, v. 63, no. 45, p. 1115.
Harbert, William, Scholl, David W., Vallier, Tracy L., Stevenson, Andrew J., and Mann, D.M., 1986,
Major evolutionary phases of a forearc basin of the Aleutian Terrace; relation to North Pacific
tectonic events and the formation of the Aleutian subduction complex: Boulder, CO, Geology,
v. 14, no. 9, p. 757-761.
McCarthy, Jill, Scholl, David W., and Sleep, Norman H., 1983, Accretionary structures along
the central Aleutian Trench: American Geophysical Union Eos, Transactions, v. 64, no. 45, p. 870.
McCarthy, Jill, 1987, Seismic reflection imaging of plate boundaries; examples from the
central Aleutians, the North Atlantic, and the Basin and Range Province of the Western U.S.:
Stanford, CA, Stanford University Ph. D. Dissertation.
Geist, Eric L., Childs, Jonathan R., and Scholl, David W., 1987, Evolution and petroleum
geology of Amlia and Amukta intra-arc summit basins, Aleutian Ridge: Marine and Petroleum
Geology, v. 4, no. 4, p. 334-352.
Geist, Eric L., Childs, Jonathan R., and Scholl, David W., 1985, Extensional structures
on the Aleutian Ridge, Alaska: American Geophysical Union Eos, Transactions, v. 66, no. 46,
p. 1072.
Geist, Eric L., Childs, Jonathan R., and Scholl, David W., 1988, The origin of summit
basins of the Aleutian Ridge; implications for block rotation of an arc massif: Tectonics,
v. 7, no. 2, p. 327-341.
Scholl, David W., Mann, Dennis M., Vallier, Tracy L., and Sliter, Ray W., 1988, Multichannel
seismic-reflection data collected in 1981 across the Aleutian Arc and Trench, Alaska:
U.S. Geological Survey Open-File Report 88-0592, 4 p. 2 sheets.
http://walrus.wr.usgs.gov/infobank/
Identified as best available version.
Unspecified
Start and end date/times of data
>Navigation Data (l-9-81-aa.070)
>YYYYMMDDHHMMSST YYYYMMDDHHMMSST
>198107190212000 198107201108000
>198107201117000 198107201649260
>198107201654360 198107240505200
>198107240533190 198108100623120
>198108100629050 198108131805000
>YYYYMMDDHHMMSST YYYYMMDDHHMMSST
>Gravity Data (l-9-81-aa.165_070)
>YYYYMMDDHHMMSST YYYYMMDDHHMMSST
>198107190226000 198107191506480
>198107191515000 198107200834420
>198107200844060 198107201713240
>198107201721540 198107210201540
>198107210207060 198107220431240
>198107220437540 198107221335180
>198107221437060 198107230816360
>198107230822060 198107260508240
>198107260515060 198107261854300
>198107261904300 198107270358300
>198107270405060 198107280617420
>198107280623180 198107300818000
>198107300823420 198107302338120
>198107310226480 198107311039000
>198107311044420 198107311846420
>198107312049060 198108010036180
>198108011032240 198108011810120
>198108020548240 198108021051240
>198108021100300 198108031253120
>198108031259060 198108031357120
>198108031428000 198108031855300
>198108032204360 198108040707540
>198108040714120 198108061331420
>198108061337060 198108070714540
>198108070720000 198108080919000
>198108080925120 198108090505480
>198108090511060 198108110414420
>198108110420180 198108120846480
>198108120943000 198108131742180
>YYYYMMDDHHMMSST YYYYMMDDHHMMSST
>Magnetics Data (l-9-81-aa.220_070)
>YYYYMMDDHHMMSST YYYYMMDDHHMMSST
>198107190800000 198107191512070
>198107191520030 198107200840000
>198107200849080 198107200941560
>198107201633160 198107201718360
>198107201726520 198107210207000
>198107210212080 198107220436560
>198107220442520 198107221340320
>198107221442060 198107230821560
>198107230827040 198107260514000
>198107260520040 198107261900000
>198107261909320 198107270404000
>198107270410040 198107280328100
>198107280514400 198107280623000
>198107280628160 198107280827240
>198107282256360 198107290141400
>198107291204400 198107292022040
>198107300334400 198107301240080
>198107301921440 198107302256160
>198107310232160 198107310915240
>198107312054050 198108010041040
>198108011039070 198108011814510
>198108020553270 198108021057070
>198108021105310 198108031402400
>198108031433030 198108031900320
>198108032209360 198108040713000
>198108040719120 198108042338400
>198108050854400 198108051705160
>198108060916400 198108061337000
>198108061342040 198108080924200
>198108080930140 198108082258280
>198108090114200 198108092221440
>198108100038240 198108100539160
>198108100821280 198108110419560
>198108110425160 198108112310080
>198108120135090 198108120852280
>198108120948000 198108121339000
>198108121712230 198108131045000
>YYYYMMDDHHMMSST YYYYMMDDHHMMSST
>Bathymetry Data (l-9-81-aa.335_070)
>YYYYMMDDHHMMSST YYYYMMDDHHMMSST
>198107190300060 198107190924360
>198107190939180 198107191007300
>198107191020300 198107201215060
>198107201247300 198107201801480
>198107201812240 198107220000000
>198107220150360 198107280300000
>198107280527180 198107280829060
>198107282303120 198107290131420
>198107290630000 198107301458180
>198107301509180 198107301518120
>198107301528180 198107301528180
>198107301538420 198107310915240
>198107311000060 198108010034540
>198108011042420 198108011833540
>198108020601000 198108042338060
>198108050904180 198108051848000
>198108060955240 198108061704180
>198108061716180 198108070022120
>198108070059540 198108070343300
>198108070357300 198108070400540
>198108070413540 198108071800000
>198108071831180 198108080333120
>198108080344060 198108081108060
>198108081205060 198108082230060
>198108082241120 198108112300060
>198108112311540 198108121338300
>198108121700120 198108131040360
>YYYYMMDDHHMMSST YYYYMMDDHHMMSST
>Seismic Shots Data (l-9-81-aa.421_070)
>YYYYMMDDHHMMSST YYYYMMDDHHMMSST
>198107201802220 198107220000060
>198107220145060 198107221720110
>198107221940110 198107231354470
>198107231502070 198107241036120
>198107241130120 198107250221110
>198107250250310 198107250325520
>198107250349520 198107251319520
>198107251353120 198107260210140
>198107260216540 198107261053340
>198107261205140 198107270851500
>198107271310100 198107280253350
>198108060958150 198108062358190
>198108070055190 198108080252180
>198108080258580 198108080515390
>198108080540390 198108081137190
>198108081208190 198108081718160
>198108081724560 198108082231350
>198108100823460 198108101352280
>198108101357390 198108110016060
>198108110032270 198108110055080
>198108110100310 198108110100310
>198108110106460 198108110106460
>198108110113250 198108110113250
>198108110120020 198108110120020
>198108110127340 198108110127340
>198108110135550 198108110135550
>198108110142460 198108110147400
>198108110152500 198108110152500
>198108110158320 198108110230210
>198108110235310 198108110537260
>198108110607470 198108111406020
>198108111411390 198108111715540
>198108111721220 198108112301430
>YYYYMMDDHHMMSST YYYYMMDDHHMMSST
Unspecified
Unspecified
Navigation Data
>Converted to time format with year at start.
>
>06/06/86 EDM DUA0:[DATA.LEE81B]L981AA.070;
>DUA0:[DATA.LEE81B]FIXLATLON.EXE;
>fixed longitude values <-180. degrees
>
>Input was...
>06/24/85 CAROLYN DRS$DATA:[L981AA.N]L981AA.070;
>DRB0:[DRS.NAV]EOTCSSP.EXE;
>
>06/24/85 CAROLYN DRS$DATA:[L981AA.N]L981AA.050;
>DRB0:[DRS.REFMT]REFORMAT.EXE;4
>was l981aa.sinse1._ on TAM295 and on TAM339
>
19960122
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>
Gravity Data
>10/31/1998 /tiger/l/l981aa/grav/l-9-81-aa.165_070
>/bear/programs/edit/automerge/automerge
>
>Input was...
>Converted to time format with year at start.
>
>04/14/86 BECKIE DUA0:[DATA.JON.L981AA]L981AA.165;
>DRB0:[DRS.REFMT]REFORMAT.EXE;5
>This file was a Multics file named l981aa.red_grv.
>Jon Childs believes this file to be superior to
>L981AA.161, which has regional value problems.
>
>Input was...
>Converted to time format with year at start.
>
>06/06/86 EDM DUA0:[DATA.LEE81B]L981AA.070;
>DUA0:[DATA.LEE81B]FIXLATLON.EXE;
>fixed longitude values <-180. degrees
>
>06/24/85 CAROLYN DRS$DATA:[L981AA.N]L981AA.070;
>DRB0:[DRS.NAV]EOTCSSP.EXE;
>
>06/24/85 CAROLYN DRS$DATA:[L981AA.N]L981AA.050;
>DRB0:[DRS.REFMT]REFORMAT.EXE;4
>was l981aa.sinse1._ on TAM295 and on TAM339
>
>time, lat, long, time(sec) to nearest nav fix, data values
19981031
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>
Magnetics Data
>06/20/2012 carolyn l-9-81-aa.220_070
>
>Reprocessed using subroutines from Susan Macmillan's
>IGRF SYNTHESIS PROGRAM <http://www.ngdc.noaa.gov/IAGA/vmod/igrf11.f>
>with IGRF-11 coeffiecients integrated into the source code.
>/infobank/programs/mag/magred11/magred11.for
>Using geodetic coordinate system (Earth shape approximated by spheriod)
>with altitude 0.0 km (for sea level).
>
>Input was...
>10/31/1998 /tiger/l/l981aa/mag/l-9-81-aa.200_070
>/bear/programs/edit/automerge/automerge
>
>Converted to time format with year at start.
>
>11/21/85 CAROLYN DRS$DATA:[L981AA.M]L981AA.200;
>DRB0:[DRS.REFMT]REFORMAT.EXE;4
>was L981AA._.MAGSB1 on TAM002
>was L981AA220.DAT on VAM002
>
>Converted to time format with year at start.
>
>06/06/86 EDM DUA0:[DATA.LEE81B]L981AA.070;
>DUA0:[DATA.LEE81B]FIXLATLON.EXE;
>fixed longitude values <-180. degrees
>
>06/24/85 CAROLYN DRS$DATA:[L981AA.N]L981AA.070;
>DRB0:[DRS.NAV]EOTCSSP.EXE;
>
>06/24/85 CAROLYN DRS$DATA:[L981AA.N]L981AA.050;
>DRB0:[DRS.REFMT]REFORMAT.EXE;4
>was l981aa.sinse1._ on TAM295 and on TAM339
>
>time, lat, long, time(sec) to nearest nav fix, data values
20120620
U.S. Geological Survey (USGS) <http://www.usgs.gov>, Coastal and Marine Geology (CMG) <http://walrus.wr.usgs.gov>
Clint Steele <http://walrus.wr.usgs.gov/staff/csteele.html>
InfoBank Group Leader <http://walrus.wr.usgs.gov/staff/csteele.html>
mailing and physical address
USGS, MailStop 999, 345 Middlefield Road
Menlo Park
CA
94025-3561
USA
(650) 329-5055
(650) 329-5190
infobank@octopus.wr.usgs.gov <mailto:infobank@octopus.wr.usgs.gov>
Bathymetry Data
>10/31/1998 /tiger/l/l981aa/bath/l-9-81-aa.335_070
>/bear/programs/edit/automerge/automerge
>
>Input was...
>Converted to time format with year at start.
>
>09/04/85 BECKIE DUA0:[DATA.L981AA.B]L981AA.335;
>DRB0:[DRS.REFMT]REFORMAT.EXE;4
>This file was hand-digetized in 2-way traveltime(secs).
>
>Input was...
>Converted to time format with year at start.
>
>06/06/86 EDM DUA0:[DATA.LEE81B]L981AA.070;
>DUA0:[DATA.LEE81B]FIXLATLON.EXE;
>fixed longitude values <-180. degrees
>
>06/24/85 CAROLYN DRS$DATA:[L981AA.N]L981AA.070;
>DRB0:[DRS.NAV]EOTCSSP.EXE;
>
>06/24/85 CAROLYN DRS$DATA:[L981AA.N]L981AA.050;
>DRB0:[DRS.REFMT]REFORMAT.EXE;4
>was l981aa.sinse1._ on TAM295 and on TAM339
>
>time, lat, long, time(sec) to nearest nav fix, data values
19981031
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>
Aleutian Arc, Alaska
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
Bathymetry with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/bath.html>
Gravity with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/grav.html>
Magnetics with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/mag.html>
Navigation with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/nav.html>
Seismic Shots with Time Stamp <http://walrus.wr.usgs.gov/infobank/programs/html/definition/seis.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 L-9-81-AA data set <http://walrus.wr.usgs.gov/infobank/l/l981aa/html/l-9-81-aa.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
1.2
http://walrus.wr.usgs.gov/infobank/l/l981aa/html/l-9-81-aa.nav.html
ASCII
No compression applied
2.9
http://walrus.wr.usgs.gov/infobank/l/l981aa/html/l-9-81-aa.grav.html
ASCII
No compression applied
2.5
http://walrus.wr.usgs.gov/infobank/l/l981aa/html/l-9-81-aa.mag.html
ASCII
No compression applied
0.9
http://walrus.wr.usgs.gov/infobank/l/l981aa/html/l-9-81-aa.bath.html
ASCII
No compression applied
1.7
http://walrus.wr.usgs.gov/infobank/l/l981aa/html/l-9-81-aa.seis.html
None
20130331
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