Juan de Fuca CORKs 2014

Ship

R/V Atlantis

Vehicles

HOV Alvin

Cruise Party

Geoffrey Wheat: Chief Scientist, Principal Investigator
University of Alaska Fairbanks P.O. BOX 757200 Fairbanks, AK USA 99775
+1 831 633 7033
wheat@mbari.org

Departure: Astoria, OR on Aug 10, 2014

Arrival: Astoria, OR on Aug 24, 2014

Mobilization Date: Aug 8, 2014

Demobilization Date: Aug 25, 2014

Supporting documentation:

Operations Area: Eastern flank of the Juan de Fuca - CORKS

Lat/Lon: 47° 45.0′ N / 127° 45.0′ W

Depth Range: 2660 / 2700

Will the vessel be operating within 200 NM of a foreign country? Canada
Are visas or special travel documents required? no

Science objectives

Over the past decade the scientific ocean drilling has installed six borehole observatories on the eastern flank of the Juan de Fuca Ridge off the coast of Washington and British Columbia. The goal of this research has been to understand the pathways of seawater flow through the basaltic crust and the reactions that take place while this seawater is in the crust. These reactions include exchange with the overlying sediment pore waters and water-rock reactions and potentially microbial mediated reactions. The goal of this cruise is to recover all of the instruments that have been deployed on earlier cruises, collect fluid samples, and seal the boreholes for future experiments.

Science Activities

Conduct a hydrostatic check at 1026B, 1027C (Maybe?), 1031A, 1031B, 1362A, and 1362B;

- Download pressure at 1026B, 1027C (Maybe?), 1031A, 1031B, 1362A, 1362B;

- Measure temperatures of the exiting fluids;

- Recover the flow meter chimney with thermistors (1362A);

- Recover wellhead OmsoSamplers at 1026B, 1362A and 1362B;

- Recover downhole samplers at 1026B, 1362A, and 1362B;

- Attempt to recover downhole sampler at 1301A;

- Sample fluids that vent from the open boreholes and through the umbilicals at 1026B, 1362A and 1362B (1301A??);

- Deploy the UH elevator/platform for large volume collection and discrete samples; and

- Conduct a background CTD

 

If necessary, we will

- Collect multi-beam bathymetric data and sediment push cores and make measurements of temperature in the sediment for heat flow analysis.

Pre-cruise planning meeting: Teleconference

Media personnel on board: N?A
At this point we do not expect to have a media person onboard

Stations:

  Station 1
  Distance: 20
  Days: 1
  Latitude: 48° 11.0’ N
  Longitude: 127° 33.0’ W

  Papa Bare
  Distance: 5
  Days: 1
  Latitude: 47° 51.0’ N
  Longitude: 127° 37.0’ W

  IODP Site 1362
  Distance: 100
  Days: 11
  Latitude: 47° 45.662’ N
  Longitude: 127° 45.674’ E

Funding Agency: NSF #1260548

- added NSF #1260548 on May 20, 2014 8:23 AM by Eric Benway

R/V Atlantis

Shipboard Equipment

Bathymetry System 3.5 kHz
Deionized Water System
Navigation - Heading
Multibeam
Fume Hood
Navigation - Position

Shipboard Communication

Basic Internet access via HiSeasNet

CTD/Water Sampling

911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors
SBE43 oxygen sensor

Critical CTD Sensors: 

Sample Storage

Climate Controlled Walk-in
Freezer -70°C 25 cu. ft.
Freezer -70°C 3.2 cu. ft. ea.
Refrigerator 8.6 cu. ft.
Scientific Walk-in Freezer


Storage Notes: Need a cold rooom to work in (4C) and storage for frozen samples for microbiology (-80C)

Navigation

Will you be using Long Base Line (LBL) navigation? no

Will you be using Ultra-short baseline (USBL) navigation for other than Alvin operations? no

Navigation

GPS
LBL
USBL

Navigation Notes: What ever Alvin uses.  Also we will need some Alvin homers etc to deal with elevators, the plasma line, and the geomicrobs sled

Winches

CTD Winch with .322" Electro-mechanical wire

Winch Notes: Will have the plasma winch on board

Wire use and application

CTD Winch with .322" Electro-mechanical wire


Wire Notes: will have the 3,000-m-lon plasma rope and winch

Slip ring required? no	Number of conductors:
Non-standard wire required? no	Type:
Traction winch required? no	Describe:

Portable Vans

Chemical Storage Van

Other Science Vans:

Specialized Deck Equipment

Mooring Deployment/Recovery Equipment Required: no	Type:
Cruise Specific Science Winch Required: yes	Type: plasma winch
Nets Required: no	Type:

Over the Side Equipment

Will you be bringing any equipment (winches, blocks, etc.) that lowers instruments over the side? yes

Details: I will bring the plasma winch

Special Requirements

Elecrical Power: yes	Identify: for the plasma winch
Equipment Handling: no	Identify:
Inter/intraship Communications: no	Identify:
Science Stowage: no	Identify:
Water: no	Identify:

Additional Cruise Items/Activities

Explosive Devices: no Portable Air Compressors: no Flammable Gases: no

Small Boat Operations: no SCUBA Diving Operations: no

Hazardous Material

Will hazardous material be utilized? yes

Describe deployment method and quantity:
probably some acids  - not sure this far off

Radioactive Material

Radioiosotopes: no

Additional Information

Is night time work anticipated on this cruise? yes

Specialized tech support (Seabeam, coring, other):  deploying elevators, one or two CTDs, deploying and recovering the plasma winch

Other required equipment and special needs: 

HOV Alvin

Site Survey

Will you provide detailed charts of the work area(s)?  no
Current Chart(s):


If no, willl you need R/V Atlantis to generate maps of the work area(s)?  no

Will you need post-dive maps of the work area generated?  no

Navigation

Will you be using Long Base Line (LBL) navigation? yes

How many nets? 0

How many tansponders? 0

Will you be using Ultra-short baseline (USBL) navigation for other than Alvin operations? yes

Vehicle Equipment

Bio collection boxes: 12 x 12 x 12
CTD
Low temperature probe
Major (dual) pair water sampler(s) with ICL temperature probles
Push corers (12-pack rack)
Search sonar


What type of samples do you expect to collect?

Elevators

Will you be using elevators to transport samples to the surface?  yes
If yes, how many would you anticipate?  6

Science Supplied Equipment

Are you supplying equipment to be used on HOV Alvin?  yes

Has this equipment been used on Alvin before?  yes

Please give a brief description of the equipment, its intended purpose, the cruise # it was last used on if any and its deployment method.
standard cork pressure connectors
ODI for geomicrob sled - drawings provided to Alvin

Does this equipment use an external pressure housing?  yes

Has the pressure housing been tested per Alvin Pressure Test requirements?  yes

Air weight of this equipment? null

Water weight(s) of this equipment?

Does the equipment require a power interface from Alvin?  yes

Voltage required

Power required

Data Interface

Does the equipment meet the electrical requirements of the Alvin User Manual?  yes

Please provide power and comms specifics, wiring diagram, pinout, and wiring harness in advance of the cruise.

Does this equipment require hydraulic inputs from Alvin?  no
Hydraulic schematic of the equipment requirements.

Does this equipment require manipulation?  yes

If yes, please describe how the equipment is to be manipulated:  To connect to another ODI either on the wellhead or on the Geomicrobe sled

Will this equipment be deployed off the vehicle?  no

If yes, please describe how the equipment is intended for deployment: 

If yes, will the equipment be disconnected from the vehicle and left in situ?  no

How long will the deployment be?  2  Days

Will the equipment be recovered by the same vehicle?  yes

Do you intend to recover any other previously deployed equipment?  yes

If yes, please describe this equipment:  OsmoSamplers, flow meter chimney, downhole OsmoSampler systems

Does this equipment use any glass spheres, ceramic housings or similar (non-metallic materials) for either buoyancy or as pressure housings?  no

Do you require any electronic equipment in the personal sphere? yes

Has the computer or control panel been gas tested for use in the personnel sphere?  yes

Hazardous Material

Will hazardous material be utilized? no

Additional Information

Brief operations description or comments:

Date Submitted: May 20, 2014 4:47 PM by Geoffrey Wheat