Exp. 337 Deep Coalbed Biosphere off Shimokita (CPP)

乗船者募集（〆切ました）

追加募集

Call for Participation in Exp. 337 (追加募集版)>>こちら（PDF）

募集要項

乗船者募集〆切

2012年12月20日（火）
〆切ました

専門分野

Sedimentologists,
Microbiologists/biogeochemists,
Micropaleontologists to conduct age determination mainly from drill cuttings,
and any other speciality that fits to the scientific purpose of the expedition

 応募する＞＞こちら

 その他・注意事項

乗船旅費について＞＞こちら（乗船が決まった方は様式に記入の上お送りください）

乗船研究者のためのガイドライン＞＞こちら

※応募する方は全員英文CV、さらに在学中の場合は指導教員の推薦書が必要となります。
※修士課程の大学院生の場合は乗船中の指導者（指導教員もしくは代理となる者）が必要です。

募集要項

乗船者募集〆切

2011年11月30日（火）
〆切ました

募集する専門分野

堆積学者、有機・無機地球化学者（泥水ガスモニタリングを含む）、微生物学者、物理特性スペシャリスト、微古生物学者、ロギングサイエンティスト、および炭化水素貯留岩スペシャリスト等その他の専門分野

 応募する＞＞こちら

その他・注意事項

乗船旅費について＞＞こちら（乗船が決まった方は様式に記入の上お送りください）
乗船研究者のためのガイドライン＞＞こちら
※応募する方は全員英文CV、さらに在学中の場合は指導教員の推薦書が必要となります。
※修士課程の大学院生の場合は乗船中の指導者（指導教員もしくは代理となる者）が必要です。

Call for Participation in IODP Expedition 337: Deep coalbed biosphere off Shimokita

 CDEX/JAMSTEC
18 Oct 2010

CDEX currently plans to implement IODP Expedition 337: Deep coalbed biosphere off Shimokita, starting in 15th March, 2011. The expedition will focus on microbial and biogeochemical processes, as well as basic studies on geobiological aspects and physical properties, in and around the Eocene coalbed at ~2000 mbsf.

 

IODP Complementary Project Proposal

Complementary project proposal is a scientifically motivated expedition having a commitment from a third party source of at least 70% funding for the platform operating costs of the expedition. This expedition will be funded by Japan Society for the Promotion of Science (JSPS), as a part of the Strategic Fund for Strengthening Leading-edge Research and Development to JAMSTEC (PI: F. Inagaki). The expedition will follow the normal IODP rules for designation of co-chief scientists, scientific staffing, and the IODP Sample, Data and Obligations Policy that defines data moratorium, data access and publication responsibilities.

Scientific Objectives of the expedition

The objective of this expedition is to deepen a hole and recover core samples down to the target Eocene lignite coalbed. The core samples will be used to investigate geological, geophysical, (bio-)geochemical and (geo-)microbiological features of the formation, with a view to expand our knowledge on coalbed subseafloor hydrocarbon system and the deep biosphere.

Particular focus will be made on deep subseafloor life and the biosphere down to 2200 mbsf, in a habitat that has never been reached by previous scientific ocean drilling. We will investigate active microbial communities and geobiological processes in the thermally immature coalbed at great burial depths.

 Operation Plan

The proposed site has already been drilled in part during the Chikyu shakedown cruise CK06-06 in 2006: the hole C9001D was cased to a depth of 511 mbsf. As the initial step of the riser drilling down to the coalbed, we will first re-enter and deepen the hole by riser drilling to reach at 1220 mbsf. Spot coring will be conducted at selected intervals, and 13-3/8” casing will be installed to that depth after the first series of wireline logging runs. Then, the riser drilling will continue with spot coring through Oligocene marine sediments and Eocene terrigenous/lacustrine sediments to the depth of 2200 mbsf. Second series of wireline logging will be performed before casing and suspending the riser hole.

For the better recovery of high priority target material, we will switch the coring system from the standard RCB coring to industry-type large diameter coring system, equipped with special device of either full closure core catcher or jam-prevention mechanism. The large diameter (10 cm) coring system uses 27 m long core barrel retrieved by a pipe trip. Three runs of the large diameter coring are planned at two intervals; one for regional unconformity found at about 1700 mbsf, including marine-terrestrial sedimentary interfaces, and the other two for Eocene coalbed and porous sandy layers.

Wireline logging program includes standard set of resistivity, density, porosity, formation image, and zero-offset VSP experiment, as well as in-situ geophysical and geochemical measurements (e.g., pH, pCO2, hydrocarbons) and sampling of pristine formation fluids from permeable layers.

In addition to riser drilling, a separate hole will be drilled for pressure core sampling (PCS). PCS will be attempted at intervals in 200-300 mbsf, retrieving possible methane hydrate-bearing sediments at the site.

 Expedition Schedule

Current plan is that the expedition starts on 15th March, and ends on 21st May. This would allow 68 days of offshore operation. Since the first week is spent for preparation of riser drilling without producing any scientific data, Science Party will get onboard Chikyu via helicopter on around 20th March, and will disembark on 21st May at the port of Hachinohe.

This schedule is still subject to change. Update and latest information will be available at CDEX website (http://www.jamstec.go.jp/Chikyu/eng/).

 Science party

We will organize a full science party to conduct a standard core analysis flow. By the start of this expedition, new radioisotope lab will be installed to conduct onboard radioisotope experiments. In addition to core samples, cuttings and gas samples will be continuously collected from circulating drilling mud. Mud-gas logging will be conducted by using a newly installed gas monitoring system. Contamination test by chemical tracer in drilling mud will also be attempted. To complete these onboard analyses, we will organize science party including co-chiefs scientists, sedimentologists, organic and inorganic geochemists (including mud gas monitoring), microbiologists, physical property specialists, micropaleontologists, logging scientists and other specialists such as hydrocarbon reservoir rock specialists.

 Nobu Eguchi
CDEX Expedition Manager

 Table 1

D/V Chikyu Schedule for FY10

Exp. #	Expedition Name	Schedule	Duration	Co-chief Scientists	EPM
337	Deep coalbed biosphere off Shimokita	15th March to21st May, 2011 (1)	68 days	Fumio Inagaki (2)Kai-Uwe Hinrichs (2)	Yusuke Kubo

Remarks:

(1) All expedition schedules are subject to change based on FY budgetary situation and site conditions.

(2) Tentative assignment before official assignment

報告書類

2nd post cruise meeting

• 開催期間：2015年4月13日～15日
• 開催場所：台湾（高雄）
• 日本からの参加者

氏名	所属	役職	乗船中の役割
稲垣史生	海洋研究開発機構	上席研究員	Co-chief Scientist
井尻　暁	海洋研究開発機構	研究員	Organic Geochemist
谷川　亘	海洋研究開発機構	研究員	Physical Properties Specialist
星野辰彦	海洋研究開発機構	研究員	Microbiologist
諸野祐樹	海洋研究開発機構	主任研究員	Microbiologist
山田泰広	海洋研究開発機構	上席研究員	Logging Scientist
堀　知行	産業技術総合研究所	主任研究員	Microbilogist

• 報告書：こちら（PDF）

 

成果一覧

成果一覧はこちら

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