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doi:10.2204/iodp.sp.310.2005
SAMPLE ALLOCATION COMMITTEE AND SAMPLE REQUESTS
The IODP Sample, Data, and Obligations policy is scheduled to be published by 1 October 2005 on the Program Policies page of the IODP Web site (www.iodp.org), and will apply to Expedition 310.
Access to data and core samples during Expedition 310 or within the 1 y moratorium following the onshore part of the expedition must be approved by the Sample Allocation Committee (SAC).
The SAC (composed of Co-Chief scientists, Staff Scientist, and ESO Curation Manager/IODP Curator onshore or the shipboard curatorial representative) will work with the Expedition Scientists to formulate a formal expedition-specific sampling plan for postcruise sampling.
The SAC has agreed that the review of sample requests will be deferred until after the offshore operation, so that sample requests can be reviewed in the context of the known core recovery and lithology.
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 expedition objectives. Some redundancy of measurement may be unavoidable, but minimizing the duplication of measurements among the Expedition Scientists Party (may include approved shore-based collaborators) will be a factor in evaluating sample requests.
The minimum permanent archive will consist of one-half of each core taken from the deepest hole drilled at a site (depending on the growth direction of the coral colony, if any). As such, the archive halves of cores from additional holes drilled to equal or shallower depths that contain replicate copies of stratigraphic intervals constituting the minimum permanent archive need not be designated as permanent archive, but can be, if so desired by the SAC. This may be required, for example, to fill gaps in recovery in the deepest hole. If not designated as permanent archive, they are “temporary archive.” If a composite splice section is constructed and the sampling demand exceeds the working half, an alternative scenario may be required to make sure that all samples can be taken from the spliced section. In this case, the permanent archive will be defined from cores that are not part of the splice (e.g., from cores from different holes). It should be stressed that the availability of archive halves for sampling depends on the presence of comparable sedimentary sequences in adjacent holes that can be directly correlated and thereby identified as duplicate material. In the drilling of corals, similar to the situation in hard rock environments, the paucity of replicate material may severely limit the availability of nonpermanent archive-half material.
The Sample Allocation Committee comprises the following members:
- Gilbert Camoin: Co-Chief Scientist
- Yasufumi Iryu: Co-Chief Scientist
- Ursula Röhl: ESO Curation Manager/IODP Curator (or shipboard representative)
- David McInroy: ESO Staff Scientist