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East Pacific Rise — Current Experiment Coordination — Responses [ISS]

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1. PI-Project Information

Name: Emily M. Klein (co-PIs S. White, M. Perfit, K. Von Damm, K. Sims)
Institution: Duke University (lead)
Email address: ek4@duke.edu
Project Title: Collaborative Proposal: Anatomy of an Overlapping Spreading Center; Geochemical and Geological Study of the EPR 9°03'N OSC
NSF-OCE number: OCE 0526120 (to Klein)
Upcoming cruise ID and dates: 03/24/07-04/25/07

2. Planned Sampling Requirements

  • 2.1. Types of Samples:

    • Rock, fluid and biologic samples will be collected by ROV Jason II over and adjacent to the two limbs of the overlapping spreading center at 9°03'N on the EPR.

  • 2.2. Type of Sample Locality:

    • The main goal of this work is to characterize and sample rock outcrops. This work is exploratory with respect to hydrothermal vent identification. If new vents are found, we intend to sample high-temperature vent fluids and edifices, as well as biota.

  • 2.3. Seafloor Collection Devices to be Used:

    • ROV Jason II, supplemented by rock coring.

  • 2.4. Seafloor Experiments to be Deployed:

    • Transponder net (7); Jason II; elevators associated with Jason II, all of which will be recovered. If hydrothermal venting is identified, we may wish to leave simple permanent markers.

3. Planned Duration of Seafloor Experiments:

21 science days today; 11 devoted to Jason II operations (the remainder devoted to DSL120 surveying.

4. Constraints on Your Deployment Plans:

None anticipated.

  • 4.1. Will vehicle operations be allowable in your experiment area? If so, with what restrictions for sampling or imaging (e.g., non-invasive observations or mapping).

    • Yes. No restrictions anticipated.

  • 4.2. What is the proximity (meters distant) from your experiment(s) that future sampling can be done.

    • No restrictions.

  • 4.3. What is the proximity (meters distant) to which other in-situ instrument deployments can be made.

    • No restrictions anticipated.

  • 4.4. Will you be using acoustic devices or moorings?

    • No permanent acoustic devices or moorings.

  • 4.4. Are you looking for other experiments that can be co-located with your experiments?

    • No.

  • 4.5. Does your experiment require site protection? To what level of tolerance?

    • No, not anticipated.

5. Other Issues?