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.
At each Leg 190 site, the APC/XCB hole will only overlap the RCB hole by ~10 m. Therefore, there will only be one copy of the section available for core description and sampling. In some critical intervals (e.g., faults, décollement, 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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