Sampling/Data acquisition plan

Expedition 332 will most likely be recovering data from the previously installed SmartPlug observatory at Site C0010; these data are currently acquired using third-party instruments and will be made available upon request to members the science party from Expedition 332 or shore-based researchers. Limited LWD/MWD drilling will be conducted at Site C0002, with no other sampling or data collection planned for Expedition 332. Shipboard and shore-based researchers should also refer to the IODP Sample, Data, and Obligations Policy ( as well as to the following text.

Sample/Data requests and coordination

Because NanTroSEIZE is a long-term multiexpedition drilling project that includes several linked expeditions over several years that share overarching scientific objectives, sampling and coordination of individual samples and data requests are somewhat different than for single expeditions. These differences include the recognition of Specialty Coordinators, unique data sharing opportunities, and a more integrated sample and data request program. Key aspects of these differences are described below.

Specialty coordinators

Unlike traditional stand-alone ODP/IODP legs and expeditions, unusual amounts of coordination and collaboration must occur among science parties across expeditions and within the framework of overall NanTroSEIZE goals. Specialty Coordinators, in collaboration with Co-Chief Scientists, are usually responsible for facilitating collaborations between the participants aboard the Chikyu during Expedition 332 and shore-based science party members, as well as identifying research or sampling gaps or collaborations in addition to those planned by shipboard science parties but needed to advance the overall NanTroSEIZE scientific goals. They will also provide technical and scientific guidance to each science party. The NanTroSEIZE Project Management Team (PMT) has identified six specific research areas that require special effort over the project's duration:

  1. Lithology and sedimentary petrology.

  2. Structural geology.

  3. Geotechnical properties and hydrogeology.

  4. Geochemistry.

  5. Core-log-seismic integration.

  6. Paleomagnetism and biostratigraphy.

No Specialty Coordinator for observatories has been nominated or assigned so far. However, the PMT observatory team assists the PMT in decision-making concerning long-term monitoring strategies, instruments, and associated issues.

Data/Sample sharing

Data sharing across expeditions is normally accommodated through a formal data/sample request; that is, scientists from one expedition can apply as a shore-based scientist for shipboard data/samples from a completed or planned expedition. In the case of NanTroSEIZE, it is also possible that drilling or scientific objectives will overlap across two or more expeditions to such an extent that the expeditions will be considered one expedition in terms of shipboard data and samples. In these cases, data can be shared without a separate data/sample request. This may occur, for example, for scientific or logistical reasons during preexpedition planning or during the expedition, if contingency sites are drilled that overlap with a planned expedition. The decision as to whether an expedition is a stand-alone expedition in terms of data/samples or is part of a suite of expeditions is made by the PMT in consultation with the Sample Allocation Committee (SAC) and the Co-Chiefs of the involved expeditions.

Sample and data requests (research proposals)

All shipboard scientists must submit at least one data or sample request in advance of the drilling expedition. Since Expedition 332 will most likely only recover data, sample requests would have to be for other NanTroSEIZE expeditions. Additional requests also may be submitted during or after the expedition if appropriate. The initial sample requests provide the basis for the SAC and Specialty Coordinators to develop an integrated sampling program of both shipboard and postcruise sample requests. The initial sampling plan, of course, will be subject to modification depending upon the actual material/data recovered and on collaborations that may evolve between scientists before and during the expedition(s). Modifications to the sampling plan during the expedition require the approval of the SAC. To provide time for the SAC and Specialty Coordinators to develop a detailed and integrated sampling strategy, data requests are due by 15 October 2010.

The IODP Sample, Data, and Obligations Policy ( outlines the policy for distributing IODP samples and data and defines the obligations incurred by both shipboard and shore-based scientists. Both groups of scientists should also use the Sample/Data Request form ( in submitting their requests.

Additional sampling/data handling guidelines

The SAC is composed of Co-Chief Scientists, Expedition Project Managers, the shipboard curatorial representative, and the IODP curator on shore; the SAC for the expedition(s) must approve access to data and core samples requested during the expedition and during the 1 y moratorium, which starts at the end of the drilling expedition.

All sample frequencies and sizes must be justified on a scientific basis and will depend on core recovery, the full spectrum of other sample/data requests, the expedition objectives, and project-wide NanTroSEIZE objectives.

When critical or volumetrically limited intervals are recovered, there may be considerable demand for samples because of the limited amount of cored material. These intervals (e.g., highly deformed fault zone) may require special handling, a higher sampling density, reduced sample size, or continuous core sampling for a set of particular high-priority research objectives. The SAC may require an additional formal sampling plan before critical intervals are sampled.

All sampling to acquire ephemeral data types or to achieve essential sample preservation will be conducted during the expedition. Sampling for individual scientists' postcruise research may be conducted during the expedition, or may be deferred to postcruise.

For third-party experiments (e.g., VSP, etc.) or instruments such as components of CORKs or miniCORKS, a different strategy and moratorium period applies. Those data or samples (in case of OsmoSamplers, flow-through osmo colonization system [FLOCS] modules, etc.) will generally be associated with research proposals by the primary investigators (PIs) of the projects that funded the instruments. In a situation where several researchers request samples and/or data from a third-party instrument/experiment, the following prioritization will be applicable: third-party researcher/PI, shipboard scientist, shore-based scientist. The SAC will oversee that this order is enforced. After the 24 month moratorium period has expired, the data/samples will be available for the public for anybody's request.