Field Activity Details for field activity 1974-010-FA

Other ID: Line IPOD

Status: Completed

Organization(s): USGS, Woods Hole Coastal and Marine Science Center

Funding Program(s):

Principal Investigator(s): John Grow

Affiliate Investigator(s): Digicon, Inc. - contractor

Information Specialist(s): Nancy K. Soderberg

Data Type(s): Electro-Magnetic: Magnetics, Location-Elevation: Navigation, Seismics: Multichannel

Scientific Purpose/Goals: Obtain multichannel Line IPOD running from Cape Hatteras across the Mid-Atlantic Ridge.


Start Port/Location:

End Port/Location:

Start Date: 1974-10-17

End Date: 1974-11-07

Equipment Used: Multichannel seismics, Loran-C, Sonar Doppler, Magnetometer (wh), Magnavox satellite positioning system

Information to be Derived: Morphology;

Summary of Activity and Data Gathered: Geophysical Services, Inc. processed the data resulting in 1520 km of 36-channel demultiplexed data with 50 m shotpoint spacing. CDP multichannel seismic line: IPOD (3400 km).


Affiliate Staff:
Inc. field party chief Jack Friesen

Notes: Project = International Phase of Ocean Drilling (IPOD), International Phase of Ocean Drilling (IPOD)


Cape Hatteras to mid-Atlantic ocean ridge rift valley, United States, North America, North Atlantic;

North: 35 South: 22 West: -76 East: -45


Gulf Seal


Grow, J.A., Mattick, R.E., and Schlee, J.S., 1979, Multichannel seismic depth sections and interval velocities over outer continental shelf and upper continental slope between Cape Hatteras and Cape Cod; in Watkins, J.S., Montadert, L., and Dickerson, P.W., eds., Geological and geophysical investigations of continental margins: American Association of Petroleum Geologists (AAPG) Memoir 29, .

Grow, J.A., and Markl, Rudi G., 1977, IPOD-USGS multichannel seismic reflection profile from Cape Hatteras to the Mid-Atlantic Ridge: Geology, v. 5 no. 10, doi: 10.1130/0091-7613(1977)5<625:IMSRPF>2.0.CO;2.

Hutchinson, D.R., Poag, C. W., and Popenoe, P., 1995, Geophysical database of the East Coast of the United States; southern Atlantic margin - stratigraphy and velocity from multichannel seismic profiles: 176 URL:

Hutchinson, D.R., Poag, C. W., Johnson, A., Popenoe, P., and Wright, C., 1996, Geophysical database of the East Coast of the United States; southern Atlantic margin - stratigraphy and velocity in map grids: 165 URL:

Klitgord, K.D., and Schneider, C.M., 1994, Geophysical database of the east coast of the United States northern Atlantic margin; velocity analyses: 74 URL:, download PDF.

Klitgord, K.D., Poag, C.W., Schneider, C.M., and North, L., 1994, Geophysical database of the east coast of the United States northern Atlantic margin; cross sections and gridded database (Georges Bank Basin, Long Island Platform, and Baltimore Canyon Trough): 190 URL:, download PDF.

Zihlman, F.N., Abston, C.C., Taylor, D.J., Agena, W.F., and Oliver, H.L., 1993, International Phase of Ocean Drilling seismic Line 1 demultiplexed data, Cape Hatteras to mid-Atlantic Ridge: , download PDF.


Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Multichannel seismics --- Multichannel
1974-010-FA-SE-001-05 ( scanned record sections of Lines IPOD, )
1974-010-FA-SE-001-02 ( CD ROM disk of IPOD lines, NAVOCEANO ATLANTIC PLOTS, )
1974-010-FA-SE-001-04 ( SEG-Y demux data files for Line IPOD.)
1974-010-FA-SE-001-03 ( List of SEG-Y Files (text file) List of SEG-Y demux and stack files migrated from 9-track tapes to CD-ROM.)
1974-010-FA-SE-001-01 ( Paper record section of Lines IPOD, )
Loran-C --- Navigation
1974-010-FA-LN-001-04 ( Shotpoint Map (tif file) Shotpoint map for IPOD line.)
1974-010-FA-LN-001-03 ( Shotpoint Navigation (txt file) Shotpoint navigation with latitude/longitude coordinates.)
1974-010-FA-LN-001-05 ( Contracted Atlantic Marine Multichannel Seismic Reflection Data Tracklines (pdf file) Generalized track map depicting several data sets including IPOD line collected by Digicon aboard the GULF SEAL.)
Sonar Doppler --- Navigation
Magnetometer (wh) --- Magnetics
1974-010-FA-GP-001 ( Digital tapes of MG-IPOD: inventory #0846, 0848, and 0981.)
Magnavox satellite positioning system --- Navigation

USGS Coastal and Marine Geology Program