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Summary Information for Field Activity 2005-005-FA

Area of Operations: Merrimack Embayment, Massachusetts, Gulf of Maine, United States, North America, North Atlantic

Dates: September 06, 2005 to September 21, 2005

Chief scientist: Walter Barnhardt

   Massachusetts Office of Coastal Zone Management

Objectives: Sea floor mapping to: 1) support management of ocean resources; 2) clarify the post-glacial history of sea-level change in the region; 3) reconstruct coastal environments and quantifying rates of change over the last few thousand years; and 4) develop a sediment budget for the coastal system, which is experiencing chronic erosion.

Type of Activity: Sampling (SEABOSS); Seismic profiling; Sea floor mapping;Sampling (SEABOSS)
Sea floor mapping

Information to be derived: Grain size analysis; Sea floor map; Bathymetric maps; high-resolution geologic maps;

Summary: The new remotely operated vehicle (ROV) was deployed for the first time to successfully recover a sound-velocity profiler that was lost during a cast. We collected 100% coverage of sea floor with bathymetry and sidescan sonar data, approximately 1000 km of seismic reflection profiles, and grab samples and bottom photography/video at 93 stations. Cruise focused on nearshore areas in water depths of 5-25 m to complete the surficial mapping that was begun in 2003 (SAIC contract multibeam). Sub-bottom profiles were collected throughout entire study area in water depths of 5-90 m.

Contact: Walter Barnhardt (wbarnhardt@usgs.gov)

InfoBank: uses the identifier C-1-05-GU. Visit this site for more information.

Related Links: http://woodshole.er.usgs.gov/project-pages/coastal_mass/html/capeann.html
http://soundwaves.usgs.gov/2007/12/pubs.html

Click to get Google Software - Download 05005.kml to view this field activity in Google Earth

Platform Info:

Publications resulting from these data

Barnhardt, Walter A., Andrews, Brian D., Ackerman, Seth D., Baldwin, Wayne E., and Hein, Christopher J.,2009, High-resolution geologic mapping of the inner continental shelf; Cape Ann to Salisbury Beach, Massachusetts: U.S. Geological Survey Open-File Report 2007-1373. (Also available at http://pubs.usgs.gov/of/2007/1373/)

Pendleton, E.A., Baldwin, W.E., Barnhardt, W.A., Ackerman, S.D., Foster, D.S., Andrews, B.A., and Schwab, W.C.,2013, Shallow Geology, Sea-floor Texture, and Physiographic Provinces of the Inner Continental Shelf from Nahant to Northern Cape Cod Bay, Massachusetts: U.S.Geological Survey Open-File Report 2012-1157. (Also available at http://pubs.usgs.gov/of/2012/1157/)

Data Types and Locations:

Bathymetry

Bathymetric depth grid

GeophysicsNavigation

Data is in the Data Library - contact Data Manager (bbuczkowski@usgs.gov)

Logs

Cruise Log: Excel spreadsheet kept by participants during cruise.

Photos

Deck photos: 138 photos posted to the Data Archive web pages.

SamplesSeismics

Raw SEGY data

Sonar

Data is in the Data Library - contact Data Manager (bbuczkowski@usgs.gov)

Video

Data is in the Data Library - contact Data Manager (bbuczkowski@usgs.gov)

 

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