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Data report: coring disturbances in IODP Expedition 340, a detailed list of intervals with fall-in and flow-in1

M. Jutzeler,2, 3, 4 P.J., Talling,2 J.D.L. White,4 and the Expedition 340 Scientists5


We report an exhaustive list of coring disturbances from the entire collection of piston cores collected during Integrated Ocean Drilling Program (IODP) Expedition 340. Expedition 340 cores contain numerous coring disturbances resulting from the particularly thick and coarse granular material cored. Overall, 23%–32% of the recovered core length is disturbed. Here, coring disturbances are grouped into fall-in and flow-in classes, and uncertain intervals are distinguished from those with clear evidence of coring disturbances. Fall-in corresponds to fallen material atop the core, chiefly from hole collapse. Flow-in includes basal flow-in, which occurs at the bottom of a core, and midcore flow-in, which corresponds to injection of sand into the in situ core stratigraphy. Basal flow-in is likely to occur in conditions of partial stroke, whereas midcore flow-in seems to occur where the core material was stretched during recovery.

1 Jutzeler, M., Talling, P.J., White, J.D.L., and the Expedition 340 Scientists, 2016. Data report: coring disturbances in IODP Expedition 340, a detailed list of intervals with fall-in and flow-in. In Le Friant, A., Ishizuka, O., Stroncik, N.A., and the Expedition 340 Scientists, Proceedings of the Integrated Ocean Drilling Program, 340: Tokyo (Integrated Ocean Drilling Program Management International, Inc.). doi:10.2204/iodp.proc.340.206.2016

2 National Oceanography Centre, Southampton,

European Road, Waterfront Campus, SO14 3ZH Southampton, United Kingdom. Correspondence author:

3 School of Physical Sciences-Earth Sciences, University of Tasmania, Private Bag 79, Hobart, TAS 7001, Australia.

4 Geology Department, PO Box 56, University of Otago, Dunedin 9001, New Zealand.

5 Expedition 340 Scientists’ addresses.

Initial receipt: 30 July 2015
Acceptance: 17 November 2015
Publication: 12 February 2016
MS 340-206