USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1984-026-FA

Other ID: 84-3

Status: Completed

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

Funding Program(s):

Principal Investigator(s): Thomas O'Brien

Affiliate Investigator(s): John A. Grow, USGS-Denver

Information Specialist(s):

Data Type(s): Sonar: Single Beam, Imagery: Video, Sampling: Biology, Sampling: Geology

Scientific Purpose/Goals: Geologic investigations of two nuclear craters.

Vehicle(s):

Start Date: 1984-08-21

Start Port/Location:

End Date: 1984-09-20

End Port/Location:

Equipment Used: Echosounder, Video camera - deep sea, Grab sampler, Seismic reflection

Information to be Derived:

Summary of Activity and Data Gathered: Seismic profiles for OAK and KOA craters; fathometer strip charts; diver cores.

Staff: David Mason, David Nichols, Thomas O'Brien

Affiliate Staff:
USGS-Denver: John Grow - Ch. Sci.
J. J. Miller; Seismic Data Systems
Inc.: T. Owens; USGS-St. Pete: E. A. Shinn - diver
R. Halley - diver
Hudson - diver
J. Kindinger - diver; USGS: T.W. Henry
B. R. Wardlaw; Meridian Ocean Systems
Inc. (MOS): R.F. Johnson
S.L. Thoresen; Defense Nuclear Agency (DNA): E.L. Tremba
R.F. Couch

Notes: No post-cruise report found; information derived from USGS Bulletin 1678. Submitted 03/30/2009 by A. Orton for T. O'Brien.
Project = Pacific Enewetak Atoll Crater Exploration (PEACE), Pacific Enewetak Atoll Crater Exploration (PEACE)

Location:

Enewetak Atoll, Enewetok, Marshall Islands, Trust Territory of the Pacific Islands (TTPI), North Pacific;

Boundaries
North: 11.8 South: 11.2 West: 161.9 East: 162.5

Platform(s):

photo of Egabrag II
Egabrag II
photo of Halimeda
Halimeda

MWRA Whaler

Publications

Folger, D.W., 1986, Introduction, in Folger, D. W., ed., Sea-floor observations and subbottom seismic characteristics of OAK and KOA craters, Enewetak Atoll, Marshall Islands: URL: http://pubs.er.usgs.gov/usgspubs/b/b1678.

Folger, D.W., Hampson, J. C., Robb, J. M., Woellner, R. A., Foster, D. S., and Tavares, L. A., 1986, Bathymetry of OAK and KOA craters, Chapter A in Folger, D. W., ed., Sea-floor observations and subbottom seismic characteristics of OAK and KOA craters, Enewetak Atoll, Marshall Islands: URL: http://pubs.er.usgs.gov/usgspubs/b/b1678.

Portals/Viewers

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Echosounder --- Single Beam
Video camera - deep sea --- Video
Grab sampler --- Biology
Geology
Seismic reflection ---