Field Activity 1979-017-FA

Identifier 1979-017-FA
Alternate names Cruise II, Leg II; RP-4-SU-79B
Purpose Detect and locate earthquake activity in the northeast Gulf of Alaska (NEGOA). Obtain measurements of sea floor accelerations accompanying both strong and weak earthquakes. Demonstrate and evaluate the effectiveness of the USGS OBIPs when used in the seismic refraction mode.
Location Yakutat Bay, northeastern Gulf of Alaska, Alaska, United States, North America, North Pacific;
Summary OBIP deployments - 13; OBIP recoveries - 8; Seismic refraction - 3 lines, 165 km; Bathymetry/sub-bottom profiling - 580 km; XBT launches - 12; Shipek bottom samples - 8.
Related activities
1979-027-FA: Deployment-recovery
Platform
Surveyor
Length: 292 ft 2 in (89.05 m) Beam: 46 ft (14 m).
Itinerary
Start (port not specified) 1979-07-19
End (port not specified) 1979-07-27
Days in the field 9
Bounds
West -148
East -142
North 60
South 57

Personnel

Organization
384 Woods Hole Road
Quissett Campus
Woods Hole, MA02543-1598
(508) 548-8700
Principal investigators Bruce Ambuter
Crew members
Bruce Ambuter
Scientist, Staff
Raymond E. Davis
Scientist, Staff
Affiliate staff Dr. Mark Holmes, USGS-Seattle; Joe Edwards, USGS-Menlo Park

Data types and categories

Data category: Seismics, Location-Elevation
Data type: Sub Bottom Profiler, Air Gun / Water Gun, Sonobuoy, Ocean Bottom Seismometer, Navigation

Documents: Notes and log books

Name Description
Cruise report Chief Scientist's cruise report with a fairly extensive narrative of data acquisition. Includes personnel list, objectives, equipment descriptions, and summary of results.

Equipment used

Equipment Usage description Data types Datasets
3.5 kHz Sub Bottom Profiler 2
Air gun Air Gun / Water Gun (no data reported)
Seismic refraction Sonobuoy (no data reported)
Ocean Bottom Seismometer Ocean Bottom Seismometer (no data reported)
Loran-C Navigation 2

Datasets

Datasets produced in this activity

Dataset name Equipment Description Dataset contact
1979-017-FA-SE-001 3.5 kHz Collection of paper record displays of seismic data( 3.5K) for lines Nancy K. Soderberg
1979-017-FA-SE-002 3.5 kHz microfilm of Nancy K. Soderberg
1979-017-FA-LN-001 Loran-C Navigation trackline plot for field activity 79017 Nancy K. Soderberg
1979-017-FA-LN-001-01 Loran-C Scans of various trackmaps in .pdf and .tif formats. Alice M. Orton

Publications

Samples collected during this field activity