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Microbial carbon
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2008
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Atlantis
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Project Title: |
Microbial carbon and sulfur cycling in the hydrothermally altered sediments of Guaymas Basin |
Project Status: |
Submitted |
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Principal Investigator: |
Andreas P. Teske, UNC_CH |
Project Institution: |
UNC_CH |
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Project ID: |
100739 |
Version #: |
3 |
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Date Submitted: |
3/16/2007 2:57:00 PM |
Created By: |
Andreas P. Teske |
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Date Last Modified: |
6/21/2007 1:54:00 PM |
URI Serial #: |
20060713141831FZ |
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Funding Agencies: |
NSF/OCE/BIO - 0647633 - Funded |
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Summary of Field Work: |
We are using radioactive label for in-situ and shipboard incubations to measure microbial process rates in Guaymas Basin sediment cores. While all 35S and 14C shipboard work remains limited to the rad van, the in-situ 35S incubations recovered from the seafloor will be brought to the surface as 35S-labelled sediment cores, either with ALVIN or Jason |
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Summary of Facility Requirements: |
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Summary of other requirements and comments: |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1000828 |
Created By: |
Andreas P. Teske |
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Date Last Modified: |
6/21/2007 1:51:00 PM |
Date Submitted: |
3/16/2007 4:11:00 PM |
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Year: |
2008
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Ship/Facility: |
Atlantis
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Optimum Start Date:
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10/1/2008 |
Dates to Avoid: |
Change dates to accomodate German Colleagues - see below |
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Earliest Start Date: |
1/1/2008 |
Multi-Ship Op: |
No |
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Latest Start Date: |
12/31/2008 |
Other Ship(s): |
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Operating Days Needed: |
Science Days |
Mob Days |
De-Mob Days |
Estimated Transit Days |
Total Days |
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12 |
0 |
0 |
0 |
12 |
Repeating Cruise?
(within same year) |
No |
Interval: |
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# of Cruises: |
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Description of Repeating cruise requirements: |
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Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
--- June 21: 12 days approved by NSF per L. Goad
--- Update June 18: I am requesting an increase in the science days from 10 to 12 and hope this is acceptable from a scheduling viewpoint and does not wreak havoc. Our work program and the program of our MPI collaborators has become more ambitious since we realized the potential of this cruise. The MPI is interesting in bringing in-situ devices (chemical gradient profilers; benthic chambers, planar optodes) that allow unprecedented detail in measurements of in-situ microbial process rates and geochemical gradients; all this will benefit greatly from more bottom time. |
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Short Description of Op Area
for use in schedules: |
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| Description of Op Area: |
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| Op Area Size/Dia.: |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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Ending
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Show Degrees Minutes |
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Foreign Clearance Required? |
Yes |
Coastal States:
Mexico |
 Important Info on Foreign Research Clearances
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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)?
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No |
If yes, have you applied for the necessary permits through your export control office?
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No |
| Questions about ITAR/EAR regulations?
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Comments about foreign clearance requirements or
description of any other special permitting requirements
(e.g., MMPA, ESA, IHA, Marine Sanctuaries, etc.) |
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Requested Start Port |
Intermediate Port(s) |
Requested End Port |
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Guaymas, Mexico |
None |
Guaymas, Mexico |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
Requested Ports: Start - Guaymas, Mazatlan, or Manzanillo/Intermediate - /End - Guaymas, Mazatlan, Manzanillo, or San Diego |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Andreas P. Teske, UNC_CH |
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# in Science Party |
23 |
# of different science teams |
2 |
# Marine Technicians to be
provided by ship operator:
(include in science party total)
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1 |
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Explanation of Science Party Requirements and Technician Requirements |
We are trying to accomodate the time window of our German collaborators from the Max-Planck-Institute for Marine Microbiology |
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 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 |
| 1 PI-Provided Vans - briefly describe | MOCNESS | | |
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Explain Instrumentation or Capability
requirements that could affect choice
of ship in scheduling. |
We need a -80C freezer for sample storage, and a contained area (radioactivity van) for work with radiotracers (35S-sulfate, 14C-methane), all of them weak beta-emitters.
--- A large minus 80C freezer for sample storage would be optimal; we will have lots of samples for molecular biology work that have to be frozen immediately. Otherwise, we can improvise with -20 chest freezers and load them with dry ice for colder temperatures.
--- For sediment sampling: If there are thermometers or thermosensors for Alvin or JASON use, we would need them for measuring the temperature gradients in hydrothermally active sediment s before coring.
--- A contained area (radioisotope van) for work with radiotracers (35S-sulfate, 14C-methane) and temporary waste storage (until end of cruise) is needed.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
--- We have to look into using an ROV for in-situ sulfate reduction work using radiotracers, since radionucleotides are prohibited on ALVIN.
--- Update June 18, 2007: After consulting with our German collaborators and other ALVIN and ROV (JASON) users, it is clear that we can perform our program of sediment sampling and in-situ process measurements just as well or even better with JASON and an elevator; the advantage of more bottom time with JASON would outweigh the greater maneuverability of ALVIN. If possible, JASON and an elevator platform for transporting samples and in-situ equipment are preferred. |
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