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ID W-1-06-MB
Also Known As MBARI T971 to T979
Abstract Monterey Bay Aquarium Research Institute,United States Geological Survey, Menlo Park, California. Chief Scientist: Charlie Paull, MBARI. Dive and Sampling data (ROV) of field activity W-1-06-MB in Submarine canyons of the central California coast from 04/27/2006 to 05/01/2006
Organization Monterey Bay Aquarium Research Institute
United States Geological Survey, Menlo Park, California
Project/Theme California Urban Ocean
Chief Scientist Charlie Paull
Activity Type Dive and Sampling
Platform Western Flyer
Area of Operation Submarine canyons of the central California coast, Monterey Bay, CA
Bounding Coordinates
37.52786
-123.21685    -121.74786
36.09080
Ports LEAVE Moss Landing, CA
ARRIVE Moss Landing, CA
Dates 04/27/2006 (JD 117) to 05/01/2006 (JD 121)
Analog Materials list
Scanned Materials w-1-06-mb_equipmentlog log (pdf)
w-1-06-mb_opslog log (pdf)
Information Specialist
Bill Normark, USGS
Crew
Charlie Paull
Bill Ussler
Patrick Whaling
Doug Conlin
Chris Preston
Bill Normark
Mary McGann
Chris Gutmacher
Anne Bernhardt
Angela Hessler
B.J. Reynolds
Mark Talkovic
Randy Pricket
Brian Schaefer
Buzz Scott
Ian Young
Darrell Palmer
Patt Duffy
Matt Tanner
Tim Chiefy
Derek Greenwood
Lance Wardle
Aaron Glass
Dan Chamberlin
Dan Benvenuti
Equipment Used
ROV
Purpose
Six dive days were planned in the axes of
central coast canyons north and south of Monterey Canyon and its primary
tributaries. The primary targets are Ano Nuevo, Pioneer, Lucia, Partington,
and Sur canyons. The primary MBARI objective of these dives was to determine
the recent sediment transport activity in each of these canyons with specific
attention to tracking DDT residues. In addition, the USGS project interests
were to determine which of the canyons, if any, show evidence for recent
transport of coarse sediment and to examine the stratigraphy of the canyon
walls on selected dives. Dive sites were based on MBARI and NOAA multibeam.
The intention was to collect vibracore and push core along transects across
the center of the axial channel and locally up the adjacent canyon walls.
Mechanical problems with the Western Flyer limited the cruise to five days.
Information to be Derived
Extensive sea-floor video coverage to identify benthic fauna, active methane gas 
vents,
etc. Sediment samples will be used for isotopic age determinations,
stable-element isotopic studies, benthic-foraminifera populations, and
sediment stratigraphy (for canyon/fan channel dive sites).
Summary
1730/JD117 R/V Western Flyer departs Moss Landing.
~1830/JD117 Begin test of CTD/rosette sampler in upper Monterey Canyon (MBARI 
operation)
2200/JD117 On station for the first ROV dive of the expedition TIBURON Dive
T-971 in Ano Nuevo Canyon, one of the main tributaries to the Ascension
Canyon
0153/JD121 Complete final ROV Dive T979, in Partington Canyon.
1430/JD121 A shaft seal leak on one of the main screws could not be fixed at
sea. The ROV operations are suspended and the Western Flyer heads for Moss
Landing to initiate repairs. This is the end of the science operations.
The Western Flyer arrives in Moss Landing at 2245/JD121.
Refer to the Operation Log for details.
A total of 9 TIBURON ROV dives were completed by the end of the fourth day of
operations on JD121. Of these dives, 1 was in Ano Nuevo Canyon, 4 were Pioneer
Canyon, 1 was in a slope gulley north of Pioneer Canyon, 1 was in Sur Canyon,
and 2 were in Partington Canyon. During these dives, 18 vibracores were
obtained that will come to the USGS for MST logging, photography, description
and archiving. Other cores that will come to the USGS are 4 vertical push
cores for stratigraphic purposes that will be logged before splitting for
photography and description.
Push cores not saved in their original polycarbonate core liners include 12
horizontal push cores, which were taken from vertical or near-vertical
outcrops and 6 samples from vertical push cores whose upper sections were
sampled for geochemical analyses. The bottom sections of these cores were
split after extruding, photographed on board the vessel, and are stored in
plastic ziplock bags.
All primary objectives of the cruise were attained by dives in the canyons
noted above, but the failure to sample Lucia Canyon and the Sur Canyon
downstream of its confluence with Partington Canyon leaves an incomplete
picture of the sediment transport history in these conduits.
Notes
(1) Station IDs reflect the Tiburon dive numbers set by MBARI.
(2) Sample numbers for the push cores are generally not consecutive but
reflect permanent labels on coring and other devices that are randomly chosen
before each dive, and many of the push cores are reused in later dives.
USGS sample protocol could not used during dives except for the Activity ID
(W-1-05-SC).
(3) Sample numbers recorded in FACS reflect only those samples that will be
brought to the USGS for logging, description, and, in most cases, archiving.
(4) Water samples collected by CTD/rosette sampler are not entered in FACS log
because samples are processed on board for an MBARI program.

ROV Tiburon and CTD/rosette sampler (all MBARI equipment). Tiburon will be used to map and sample the sea floor (see Purpose and Goals above). The CTD/rosette sampler is for detection of methane gas in the water column within the canyons generally at the ROV dive sites.
Got Help? For W-1-06-MB, we would appreciate any information on -- contract, days at sea, dive count, funding, kms of navigation, national plan, NGDC Info, owner, project number, publications, scanned materials, seismic description, station count, station description, submersible, tabulated info.
Type Webpage KMZ Arc         Metadata        
Metadata data     txt  data  FAQ  xml
Navigation data nav    
Samples data samp    
Times   060.times    

W-1-06-MB location map of where navigation 

equipment operated
W-1-06-MB location map of where navigation 

equipment operated

 
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