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Summary for Field Activity Number 1989-027-FA

Alternate Leg ID: AII 122

Area of Operations: Continental Rise offshore New Jersey, New York, Deep Water Dump Site (DWDS) 106, United States, North America, North Atlantic

Dates: September 15, 1989 to September 26, 1989

Objectives: To test the hypothesis that particles from municipal sewage sludge disposal at Deep Water Dump Site 106 can be detected on the deep-sea floor in the vicinity of this dump site (2250-2750 m water depth). USGS objectives were to construct a detailed bathymetric map using SeaBeam (URI), deploy instruments to monitor currents and sediment transport, and collect samples to evaluate rates of sediment mixing and accumulation and levels of chemical contaminants in surficial sediments.

Type of Activity: Sampling
Mooring work
Sea floor mapping

Information to be derived: Time series data
Samples and Chemical Analysis
Grain size analysis
Suspended Sediment Concentrations
Sea Floor Map
Bathymetric Maps

Summary: Data acquired include a Sea Beam bathymetric map and digitally recorded depth data from a survey area of about 520 nmi2 (or about 1750 km2), sediment samples from gravity cores and Alvin-manipulated corers (some cores were subsampled at sea), and the usual video, camera, and audio descriptive data generated by ALVIN. Current-meter and sediment-trap data retrieval tentatively scheduled for OCEANUS cruise in May 1990. Moorings deployed: 2 (#336 and 337 recovered FA 90026 OCEANUS 222 Aug. 2-7, 1990).

USGS Project Number: DWDS106

Contact: Mike Bothner (mbothner@usgs.gov)

InfoBank: uses the identifier A-22-89-NJ. Visit this site for more information.

Click to get Google Software - Download 89027.kml to view this field activity in Google Earth

Map for Area of Operations :

Map of field activity boundary.

Platform Info:

The following materials for this field activity are available in the Information Archives:

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