USGS Coastal and Marine Geology Program

Coastal & Marine Geology Program

Field Activity Details for field activity 1985-005-FA

Other ID: P-3-85

Status: Completed

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

Funding Program(s):

Location: U.S. Virgin Islands, Puerto Rico, United States, Caribbean Sea, North America, North Atlantic;

Principal Investigator(s): Kathryn Scanlon Catanach

Affiliate Investigator(s): Nelson Espinell, USGS-San Juan, Puerto Rico

Information Specialist(s):

Data Type(s): Location-Elevation: Navigation, Seismics: Air Gun / Water Gun, Seismics: Boomer

Scientific Purpose/Goals: Collect high-resolution single-channel seismic reflection data near Puerto Rico and the U.S. Virgin Islands. This endeavor was secondary to the collection of gravity data by the USGS-Menlo Park personnel for the Defense Mapping Agency (DMA). This report covers the seismic reflection aspects of the cruise.


Start Date: 1985-03-14

Start Port/Location: Roosevelt Roads, Puerto Rico

End Date: 1985-03-28

End Port/Location: Roosevelt Roads, Puerto Rico

Equipment Used: Air gun, EG&G 234, Magnavox System 5000 integrated navigation system, Single channel hydrophone

Information to be Derived:

Summary of Activity and Data Gathered: Seismic reflection data gathered: Lines 35A, 35A-TRANS, 32, 32A-TRANS, 33, 33A-TRANS, 34, 34A-TRANS, 30, 52, 26, 26A-TRANS, 29, 28, 28A-TRANS, 28B, 28-WEST, 27, 27A-TRANS, 55, 53, 54B, 54A-TRANS, 16, 45, 45A-TRANS, 3, 3A-TRANS, 4, 4A-TRANS, 42, 42A-TRANS, 8, 8A-TRANS, 7, 6, 5, 5A-TRANS, 9, 9A-TRANS, 10/11, 10A, 12/13, 13A, 13A/B-TRANS, 14C, 14A-TRANS, 14B-TRANS, and 50.

Staff: Kathryn Scanlon Catanach

Affiliate Staff:
USGS-Menlo Park: Jack Swenson - Gravity
Roy Fields - Electrical Tech.
Hal Williams - Mechanical Tech.; USGS-SJPR: Nelson Espinell - Seismics

Notes: Cruise reports for Field Activities 85004, 85005 and 85007 detail the 3 legs of this project: LEG 2 - 02/28-03/11/1985 (FA 85004); LEG 3 - 03/15/-03/28/1985 (FA 85005); LEG 4 - 04/01-04/08/1985 (FA 85007). Original Center People field contained: Kathy Scanlon - Seismics.

Location Map:


photo of John Wesley Powell
John Wesley Powell


(Gravity) Steele, Wm. Clinton, Degnan, Carolyn H., Deeter, Gary B., and Riordan, Jean A., 1989, Description of marine geophysical data collected by the U.S. Geological Survey and how to obtain it: U.S. Geological Survey Open-File Report 89-167, 26 p..

Data Acquired

Survey EquipmentSurvey InfoData Type(s)Data Collected
Air gun --- Air Gun / Water Gun
EG&G 234 --- Boomer
Magnavox System 5000 integrated navigation system --- Navigation
1985-005-FA-LN-001-01 ( Trackmap for Legs 1, 2, 3 and 4 (pdf file) Composite trackmap for POWELL Legs P-1 (see InfoBank), P-2 (FA 85004), P-3 (FA 85005), and P-4 (FA 85007).)
Single channel hydrophone --- Air Gun / Water Gun
Bubble Gun
Sub Bottom Profiler
1985-005-FA-SE-001 ( Collection of paper record displays of seismic data( AIR) for lines )
1985-005-FA-SE-002 ( microfilm of )