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Sampling Strategy

The Sample Distribution, Data Distribution, and Publications Policy is posted at As part of this policy, any access to data and core sampling to be conducted during Leg 210 or during the 1-yr moratorium following the end of the leg must be approved by the Sampling Allocation Committee (SAC). The SAC members are the co-chief scientists, the staff scientist, and the curatorial representative. The SAC will work with the scientific party to formulate a formal a leg-specific sampling plan for shipboard and postcruise sampling.

Sample and data requests may be submitted by shipboard and shore-based scientists no later than 3 months before the cruise via the electronic form ( Prior to the cruise, the SAC will prepare a temporary sampling plan, which will be revised on the ship as needed. Minimizing redundancy of measurements among the science party, both shipboard and shore-based scientists, will be a factor in evaluating sample requests. The sampling plan will be subject to modification depending upon the actual material recovered and collaborations that may evolve between scientists during the leg.

The minimum permanent archive will be the standard archive half of each core. All sample frequencies and sizes must be justified on a scientific basis and will depend on core recovery, the full spectrum of other requests, and the cruise objectives. Some redundancy of measurement is unavoidable, but minimizing the duplication of measurements among the shipboard party and identified shore-based collaborators will be a factor in evaluating sample requests.

As we intend to core only one hole at proposed Site NNB-01A during Leg 210, there will only be one lithologic section available for core description and sampling. In some critical intervals (e.g., Cretaceous/Tertiary boundary, ocean anoxic events, basement contact, faults, veins, etc.) there may be considerable demand for samples from a limited amount of recovered core material. These intervals may require special handling, a higher sampling density, or reduced sample size. A coordinated sampling plan may be required before critical intervals are sampled.

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