Patch thumbnail artwork for Expedition 368X
15 November - 8 December 2018
South China Sea
Hong Kong to Hong Kong
Laurel Childress
IODP Report
Patch thumbnail artwork for Expedition 368X

Return to Hole U1503A (South China Sea)

Expedition 368X was planned to reoccupy a site started by Expedition 368. Due to equipment breakdown during Expedition 368, Hole U1503A was abandoned after installing casing to 991.5 m below sea floor. Expedition 368X was able to take advantage of a unique opportunity in the JOIDES Resolution schedule. At Site U1503 the key operational objectives are to:

1) sample the lowermost ~300 m of sediments on top of basement to constrain the age and subsidence history of the crust at this location, the timing of normal faulting, and the environment of the early half-graben fill.

2) sample the igneous stratigraphy to at least 100 m below the basement to obtain deep, representative sampling of the basaltic material at this site which will provide an important reference frame for the modeling of breakup.

Author:
N Kurtz
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Outreach Coordinator
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