Summary Information for Field Activity 1985-005-FA

Area of Operations: U.S. Virgin Islands, Puerto Rico, United States, Caribbean Sea, North America, North Atlantic

Dates: March 14, 1985 to March 28, 1985

Chief scientist: Kathy Scanlon

Nelson Espinell, USGS-San Juan, Puerto Rico

Objectives: 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.

Type of Activity: Seismic profiling; Gravity data collection;Gravity data collection

Information to be derived: Seismic reflection data
Gravity data collection

Summary: 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.

Contact: Kathy Scanlon (kscanlon@usgs.gov)

InfoBank: uses the identifier P-1-85-VI. Visit this site for more information.

InfoBank: uses the identifier P-3-85-CB. Visit this site for more information.

- Download 85005.kml to view this field activity in Google Earth

Platform Info:

POWELL, JW

Publications resulting from these data

Edgar, N.T., and Scanlon, K.M.,1987, Single-channel seismic-reflection profiles collected aboard R/V POWELL, Cruises P-2-85, P-3-85, P-4-85 in the nearshore waters around Puerto Rico and the Virgin Islands: U.S. Geological Survey Open-File Report 87-147, 3 p.. (Available as a PDF version)

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Data Types and Locations:

Geophysics

Navigation

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).

Logs

Chief Scientist's report of ship movement, personnel, equipment and data acquisition notes, ship configuration, and trackchart.

Cruise Curator's inventory of data items collected at sea for POWELL Legs P-2 (FA 85004), P-3 (FA 85005), and P-4 (FA 85007).

Seismic log for Leg P-3 only containing airgun and gravity data, equipment configurations, start and end of lines, etc.

Ship's log maintained by ship's crew describing ship movement for POWELL cruises from February 28, 1985 through April 11, 1985.

Seismics