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Summary Information for Field Activity 1977-037-FA

Area of Operations: Isla de Vieques, Puerto Rico, United States, Caribbean Sea, North America, Noth Atlantic

Dates: November 07, 1977 to November 16, 1977

Chief scientist: Jim Trumbull

   Kurt Grove - PR-DNR

Objectives: Investigate sand waves on pipeline route, Escollo de Arenas, northwest of Isla de Vieques, Puerto Rico. Map and measure sand waves; sample; set stakes to detect motion/sediment transport; photograph and observe sand waves by SCUBA; measure tide heights; and sample water on different tides to measure suspended sediment.

Type of Activity: Sea floor mapping; Photography;Sea floor mapping

Information to be derived: Grain size analysis; Suspended sediment concentrations;

Summary: Profiled, described and sampled shifting sand shoal, particularly 4 sand waves in central part, on pipeline route. Determined coarse sand is in oscillatory motion on each semi-diurnal tidal current; secondary 2-m waves are in motion. Sampled water on excurrent and incurrent tides for suspended sediment. Recorded rise and fall of tides. Ship days: 5; Man days: 25.

Contact: Jim Trumbull ()

InfoBank: uses the identifier M-9-77-PR. Visit this site for more information.

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Platform Info:
MCKEE

Publications resulting from these data

Grove, Kurt A., and Trumbull, James V. A.,1978, Surficial geologic maps and data on three potential offshore sand sources on the insular shelf of Puerto Rico: U.S. Geological Survey Miscellaneous Field Studies Map MF-1017, 1 sheet. (Available as a PDF version)


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