|
|
JFR CORKS
-
2014
-
Global
|
|
|
|
Project Title: |
Collaborative Research: Completing single- and cross-hole hydrogeologic and microbial experiments: Juan de Fuca Flank |
Project Status: |
Submitted |
|
Principal Investigator: |
Charles G. Wheat, UAF_CFOS |
Project Institution: |
UAF_CFOS |
|
Project ID: |
103566 |
Version #: |
2 |
|
Date Submitted: |
8/10/2012 5:05:00 PM |
Created By: |
Charles G. Wheat |
|
Date Last Modified: |
6/2/2013 12:53:00 PM |
URI Serial #: |
None |
|
Funding Agencies: |
NSF/OCE/ODP - 1260548 - Funded |
|
Summary of Field Work: |
Specifically, we request ship and ROV support to complete the final phase of borehole monitoring, sampling, and experiments (Table 2). At the center of these studies are the cross-hole tracer experiments (begun on IODP Expedition 327 in 2010), and the long-term, multi-dimensional, cross-hole flow experiment (begun on AT18-07 in Summer 2011). Completing the tracer experiment requires recovery of downhole sampling and measurement systems so that we can quantify the presence of dissolved gas, ions, and particle tracers in the years following tracer injection. This is best done in Summer 2014, after these systems have been deployed for four years, recording a long period of geochemical response following drilling, CORK installation, and tracer injection. Experience has shown that it can take two years or more for borehole conditions to recover fully from the perturbation associated with drilling, casing, and other operations, and this should also allow for (virtually) complete dissipation of the tracer plume and return to background conditions.
We will also complete a final round of wellhead fluid and microbial sampling in 2014, download pressure data from all CORKs, recover the remaining OsmoSampler systems deployed on wellheads, recover the wellhead flowmeter, and close remaining valves so that the borehole observatories are left fully sealed, functional, and ready for future work. The CORKs installed in Holes 1362A and 1362B were sampled initially in Summer 2011, and appear to be providing pristine materials from multiple crustal depths. Extending the time series of active wellhead sampling from these holes, and from Hole 1301A, will provide important information on microbial dynamics. We propose to use a 24-48 hour deployment of the autonomous GeoMICROBE sampling sled at Hole 1362A and 1362B, helping to resolve factors contributing to inter-annual variability indicated by longer-term sampling (e.g., Jungbluth et al. 2012).
To complete the proposed tasks we request ship support for an ROV dive program comprising 10 days of scientific operations, two days of transit (assumed to/from Seattle WA or Astoria, OR), one day for weather, one day for mechanical contingency, 14 at-sea days in total. |
|
Summary of Facility Requirements: |
We request a global ship with the capabilities to deploy Jason (WHOI ROV). Milli Q water, -80 freezers, fume hoods, elevators, deck Space for plasma winch, electrical for plasma winch |
|
Summary of other requirements and comments: |
|
|
|
Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
|
Request ID: |
1005637 |
Created By: |
Charles G. Wheat |
|
Date Last Modified: |
8/10/2012 5:07:00 PM |
Date Submitted: |
8/10/2012 5:05:00 PM |
|
|
Year: |
2014
|
Ship/Facility: |
Global
|
|
Optimum Start Date:
|
8/1/2014 |
Dates to Avoid: |
There is a distinct weather window for the North East Pacific off the coast of Washington state. Best if the expdition occurred between July1 and September 1 |
|
|
|
|
|
|
Earliest Start Date: |
7/1/2012 |
Multi-Ship Op: |
No |
|
Latest Start Date: |
8/19/2012 |
Other Ship(s): |
|
|
|
Operating Days Needed: |
Science Days |
Mob Days |
De-Mob Days |
Estimated Transit Days |
Total Days |
|
12 |
4 |
2 |
2 |
20 |
Repeating Cruise?
(within same year) |
No |
Interval: |
|
# of Cruises: |
|
|
|
Description of Repeating cruise requirements: |
|
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
We request the use of Jason (ROV) and need a ship with dynamic positioning and large enough to handle the winch. |
|
Short Description of Op Area
for use in schedules: |
NE Pacific |
| Description of Op Area: |
Juan de Fuca CORKS on the eastern flank |
| Op Area Size/Dia.: |
15 |
|
|
| |
Lat/Long |
Marsden Grid |
Navy Op Area |
|
Beginning
|
|
|
|
|
Ending
|
|
|
|
|
|
|
Foreign Clearance Required? |
Yes |
Coastal States:
|
 Important Info on Foreign Research Clearances
|
|
Are you or any member in your science party bringing in any science equipment items which are regulated for export by the International Traffic in Arms Regulations (ITAR) and/or the Export Administration Regulations (EAR)?
|
No |
If yes, have you applied for the necessary permits through your export control office?
|
No |
| Questions about ITAR/EAR regulations?
|
Comments about foreign clearance requirements or
description of any other special permitting requirements
(e.g., MMPA, ESA, IHA, Marine Sanctuaries, etc.) |
|
|
|
Requested Start Port |
Intermediate Port(s) |
Requested End Port |
|
Astoria, OR, USA |
None |
Astoria, OR, USA |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
|
Important Info on Working in Foreign Ports
|
|
|
|
Chief Scientist: |
Charles G. Wheat, UAF_CFOS |
|
# in Science Party |
25 |
# of different science teams |
6 |
# Marine Technicians to be
provided by ship operator:
(include in science party total)
|
1 |
|
Explanation of Science Party Requirements and Technician Requirements |
|
|
 Dynamic Positioning |  ADCP | Multibeam | Seismic |
| Dredging/Coring/Large Dia. Trawl Wire | Stern A-frame | Fiber Optic (.681) | 0.680 Coax Wire |
| SCUBA Diving | Radioisotope use - briefly describe | NO Radioisotope use/Natural level work | Other Operator Provided Inst. - Describe |
| 0 PI-Provided Vans - briefly describe | MOCNESS | | |
|
Explain Instrumentation or Capability
requirements that could affect choice
of ship in scheduling. |
|
|
|
|
Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
|
|
