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Expedition 350 summary

Citation

Tamura, Y and Busby, CJ and Blum, P and Guerin, G and Andrews, GDM and Barker, AK and Berger, JLR and Bongiolo, EM and Bordiga, M and DeBari, SM and Gill, JB and Hamelin, C and Jia, J and John, EH and Jonas, A-S and Jutzeler, M and Kars, MAC and Kita, ZA and Konrad, K and Mahoney, SH and Martini, M and Miyazaki, T and Musgrave, RJ and Nascimento, DB and Nichols, ARL and Ribiero, JM and Sato, T and Schindlbeck, JC and Schmitt, AK and Straub, SM and Vautravers, MJ and Yang, Y, Expedition 350 summary, Proceedings of the International Ocean Discovery Program, 350, (MS 350-101) pp. 1-65. ISSN 1932-9415 (2015) [Refereed Article]


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Copyright the Authors. Licensed under Creative Commons Attribution 3.0 Unported (CC BY 3.0) license https://creativecommons.org/licenses/by/3.0/

DOI: doi:10.14379/iodp.proc.350.101.2015

Abstract

nternational Ocean Discovery Program (IODP) Hole U1436A (proposed Site IBM-4GT) lies in the western part of the Izu fore-arc basin, ~60 km east of the arc-front volcano Aogashima, ~170 km west of the axis of the Izu-Bonin Trench, and 1.5 km west of Ocean Drilling Program (ODP) Site 792, at 1776 meters below sea level (mbsl). It was drilled as a 150 m deep geotechnical test hole for potential future deep drilling (5500 meters below seafloor [mbsf]) at proposed Site IBM-4 using the D/V Chikyu. Core from Site U1436 yielded a rich record of Late Pleistocene explosive volcanism, including a distinctive black glassy mafic ash layer that may record a large-volume subaqueous eruption on the Izu arc front. Because of the importance of this discovery, Site U1436 was drilled in three additional holes (U1436B, U1436C, and U1436D), as part of a contingency operation, in an attempt to get better recovery on the black glassy mafic ash layer and its enclosing sediments and to better constrain its thickness.

Item Details

Item Type:Refereed Article
Keywords:IODP, Expedition 350, IBM, reararc, arc, volcaniclastic, volcanic
Research Division:Earth Sciences
Research Group:Geology
Research Field:Volcanology
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the earth sciences
UTAS Author:Jutzeler, M (Dr Martin Jutzeler)
ID Code:116569
Year Published:2015
Deposited By:Earth Sciences
Deposited On:2017-05-12
Last Modified:2017-08-21
Downloads:123 View Download Statistics

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