V24E:
Initial Results from the Oman Drilling Project I

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Session ID#: 38012

Session Description:
After several years of preparation, the Oman Drilling Project began drilling in late December 2016, and continued through the end of March 2017. As planned, we obtained 1500 meters of core from four boreholes in the oceanic crust and upper mantle of the Samail ophiolite, with 100% recovery. Three were in the lower oceanic crust (GT1: lower-gabbros; GT2: foliated gabbros; GT3: dike-gabbro transition), with one through the basal thrust, beginning in listvenite (100% carbonated peridotite) interlayered with partially serpentinized peridotite), passing through the fault zone, and ending in fine-grained mafic volcanics and sediments of the metamorphic sole. Two rotary holes were drilled in altered peridotite from the mantle section. Geophysical logging was conducted in all six holes. Core description onboard the Drilling Vessel Chikyu, in port in Shimizu, Japan, started July 15, and ends September 15. This session will provide an opportunity to present initial results from drilling, biogeoscience, geophysical logging, and core analysis. In turn, the session will provide scientists a preview of research opportunities available to volunteers over the coming year, as we drill another 2 km of core, and continue water sampling, logging and core observations.
Primary Convener:  Peter B Kelemen, Columbia University of New York, Palisades, NY, United States
Conveners:  Jude Ann Coggon1, Juerg Michael Matter2 and Damon A H Teagle2, (1)University of Southampton, School of Ocean & Earth Science, National Oceanography Centre Southampton, Southampton, United Kingdom(2)University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom
Chairs:  Jude Ann Coggon, University of Southampton, School of Ocean & Earth Science, National Oceanography Centre Southampton, Southampton, United Kingdom and Peter B Kelemen, Columbia University of New York, Palisades, NY, United States
OSPA Liaison:  Juerg Michael Matter, University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom
Co-Organized with:
Volcanology, Geochemistry and Petrology, and Tectonophysics

Cross-Listed:
  • T - Tectonophysics
Index Terms:

3036 Ocean drilling [MARINE GEOLOGY AND GEOPHYSICS]
4863 Sedimentation [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
8115 Core processes [TECTONOPHYSICS]
8140 Ophiolites [TECTONOPHYSICS]

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