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USGS CMG 87017 Metadata

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ID 87017
Also Known As S-1-87-SC
87017
PSAL_DEEP
SPRL
Abstract United States Geological Survey, Woods Hole, Massachusetts. Chief Scientists: Brad Butman, Dave Cacchione, Cheryl Ann Butman. Geological and Geophysical data (sidescansonar, boxcore, RhoRho, Geoprobe, instrumentmooring) of field activity 87017 (S-1-87-SC) in Pt. Sal area, Southern California from 05/05/1987 to 05/09/1987
Organization United States Geological Survey, Woods Hole, Massachusetts
Project/Theme California Outer Continental Shelf Phase II Monitoring Program
Chief Scientist Brad Butman
Dave Cacchione
Cheryl Ann Butman
Activity Type Geological and Geophysical
Platform Robert Gordon Sproul
Area of Operation Pt. Sal area, Southern California, Southern California
Bounding Coordinates
34.92667
-120.99100    -120.76350
34.89533
Dates 05/05/1987 (JD 125) to 05/09/1987 (JD 129)
Analog Materials list
Crew
Brad Butman Chief Scientist, USGS Woods Hole
Bill Strahle Unspecified Investigator, USGS Woods Hole
John Moody Unspecified Investigator, USGS Woods Hole
Dave Cacchione Chief Scientist, USGS Western Region
Dave Drake Unspecified Investigator, USGS Western Region
George Tate Unspecified Investigator, USGS Western Region
Rick Vale Unspecified Investigator, USGS Western Region
Jim Nicholson Unspecified Investigator, USGS Western Region
Cheryl Ann Butman Chief Scientist, WHOI
Chris Webb Unspecified Investigator, WHOI
Jim Campbell Unspecified Investigator, Battelle
Jim Marzohf Unspecified Investigator, IUC
Equipment Used
sidescansonar
boxcore
RhoRho
Geoprobe
instrumentmooring
Purpose
To assess the transport and fate of drilling muds
and cuttings discharged from production platforms along the California coast.
The continental shelf between Pt. Conception and Pt. San Luis is rather narrow,
only 10-15 km wide. Platform Julius will be located near the edge of the shelf
in water about 150 m dee; water less than 100 m deep is less than 5 km onshore
and water greater than 500 m deep is less than 15 km offshore. Muds and cuttings
discharged from these platforms may initially settle over a wide range of water
depths where the extent and frequency of sediment movement, as well as the
processes causing movement, will vary significantly. The field measurements
described here are designed to describe the near-bottom flow and sediment
movement in these differenet sedimentary environments.
Information to be Derived
bedforms, bottom features, vertical profile of sediment grain size, cross-shelf 
hydrographic sections, temperature, salinity and suspended material.
Summary
Current moorings were deployed at three sites across the shelf and
slope in water depths of 83, 148, and 415 m, with instruments at approximately 6
and 20 meters above bottom (mab) atstations A, B, and C, and an additional
instrument at 144 m at station C. All instruments at 6 and 20 mab measured
current, temperature, conductivity and light transmission. Geoprobes were
deployed at sites A and B; these specialized bottom instrument systems measure
curretn at 5 levels above the seafloor, every few hours. At each mooring site a
limited side-scan sonarsurvey was conducted to map any bedforms or other bottom
featurs. Box cores were collected at inshore of Santa Lucia Bank. The box cores
were fitted witha special intev als to obtain a detailed vertical profile of
sediment grain size in the upper 2 cm of the bottom. Two cross-shelf
hydrographic sections were made to map the regional distribution of temperature,
salinity and suspended material in the region of the moored observations
Got Help? For 87017, we would appreciate any information on -- contract, days at sea, dive count, funding, information specialist, kms of navigation, national plan, NGDC Info, notes, owner, ports, project number, publications, scanned materials, seismic description, station count, station description, submersible, tabulated info.
Type Webpage KMZ Arc         Metadata         WHSC
Metadata data     txt  data  FAQ  xml data
Sensors data sensors      
Navigation data nav     data
Times   062.times      

87017 location map of where navigation 

equipment operated
87017 location map of where navigation 

equipment operated

 
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