V11B:
Crustal Formation, Fluid–Rock Reactions, and Subsurface Microbial Communities in the Samail Ophiolite: Results from the Oman Drilling Project and Related Research II


Submit an Abstract to this Session


Session ID#: 63827

Session Description:
The Oman Drilling Project (2016-2018) has obtained 1200 m of diamond drillcore from three boreholes in oceanic crust, 300 m from one hole at the base of the mantle section into the underlying metamorphic sole, 700 m from two holes in the crust-mantle transition zone, and 1000 m from three holes in partially serpentinized peridotite undergoing active alteration. Seven rotary holes for future water sampling and microbiological, geophysical and hydrological experiments, have been drilled in the crust-mantle transition zone and in altered peridotite. Most holes have been geophysically logged. IODP standard core description onboard the DV Chikyu has been supplemented with X-Ray CT and high resolution infrared scanning of the entire core, and XRF scanning of selected sections. This session will present new results from drilling, geophysical logging, and core analysis, as well as related research in the Samail ophiolite, and the oceanic lithosphere in general.
Primary Convener:  Damon A H Teagle, University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom
Conveners:  Juerg Michael Matter, University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom, Peter B Kelemen, Lamont-Doherty Earth Observatory, Palisades, NY, United States and Alexis S Templeton, University of Colorado, Boulder, Geological Sciences, Boulder, United States
Primary Liaison:  Damon A H Teagle, University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom
Chairs:  Damon A H Teagle1, Juerg Michael Matter1, Peter B Kelemen2 and Alexis S Templeton3, (1)University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom(2)Lamont-Doherty Earth Observatory, Palisades, NY, United States(3)University of Colorado, Boulder, Geological Sciences, Boulder, United States
OSPA Liaison:  Damon A H Teagle, University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom
Co-Organized with:
Volcanology, Geochemistry and Petrology, and Tectonophysics

Cross-Listed:
  • B - Biogeosciences
  • T - Tectonophysics

Proposed Co-Organized Session with:
  • B - Biogeosciences
  • T - Tectonophysics
Index Terms:

0456 Life in extreme environments [BIOGEOSCIENCES]
8140 Ophiolites [TECTONOPHYSICS]
8416 Mid-oceanic ridge processes [VOLCANOLOGY]
8424 Hydrothermal systems [VOLCANOLOGY]

Abstracts Submitted to this Session:

Pure, but not Simple (Shear): Structural Characterization of the gabbroic crust and crust-mantle transition in the Wadi Tayin Massif of the Samail Ophiolite, Oman (Oman Drilling Project Holes CM1A, CM2B, GT1A & GT2A) (473575)
Michael J Cheadle1, Valentin Basch2, Aled Evans3, Greg Hirth4, Max Jansen5, Mary-Alix Kaczmarek6, Laura Crispini7, Jeremy R Deans8, Jude Ann Coggon9, Peter B Kelemen10, Juerg Michael Matter11, Eiichi Takazawa12, Damon A H Teagle11 and Oman Drilling Project Science Party, (1)University of Wyoming, Geology & Geophysics, Laramie, United States, (2)University of Genoa, Earth Sciences, Environment and Life, Genoa, Italy, (3)University of Southampton, School of Ocean and Earth Science, National Oceanography Centre Southampton, Southampton, United Kingdom, (4)Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States, (5)Cardiff University, School of Earth & Ocean Sciences, Cardiff, CF24, United Kingdom, (6)GET Géosciences Environnement Toulouse, Toulouse, France, (7)University of Genova, Department of Earth Sciences, Environment and Life, Genova, Italy, (8)University of Southern Mississippi, Department of Geography and Geology, Stennis Space Center, TX, United States, (9)University of Southampton, School of Ocean & Earth Science, National Oceanography Centre Southampton, Southampton, United Kingdom, (10)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (11)University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom, (12)Niigata University, Niigata, Japan
Hydrothermal Alteration of the Crust-Mantle Transition and Upper Mantle in the Samail Ophiolite: Insights from Holes CM1A and CM2B of the Oman Drilling Project (470045)
Gretchen L. Frueh-Green1, Marta Grabowska2, Ryosuke Oyanagi3, Kosuke Kimura4, Tomoaki Morishita5, Atsushi Okamoto6, Frieder Klein7, Akihiro Tamura8, Damon A H Teagle9, Eiichi Takazawa10, Judith A. Coggon11, Peter B Kelemen12, Juerg Michael Matter9 and OmanDP Phase 2 Science Party, (1)ETH Zurich, Department of Earth Sciences, Zurich, Switzerland, (2)University of Plymouth, School of Geography, Earth and Environmental Sciences, Plymouth, United Kingdom, (3)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (4)Hiroshima University, Higashi-Hiroshima, Japan, (5)Kanazawa University, Course in Earth and Planetary Science, Kanazawa, Japan, (6)Tohoku University, Graduate School of Environmental Sciences, Sendai, Japan, (7)Woods Hole Oceanographic Inst., Department of Geology and Geophysics, Woods Hole, United States, (8)Kanazawa University, Department of Earth Science, Kanazawa, Japan, (9)University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom, (10)Niigata University, Niigata, Japan, (11)University of Southampton, Southampton, United Kingdom, (12)Lamont-Doherty Earth Observatory, Palisades, NY, United States
Physical property of the fossilized crust-mantle transition zone from ICDP Oman Drilling Project Hole CM1A and CM2B (473553)
Keishi Okazaki1, Natsue Abe2, Kohei Hatakeyama3, Yuya Akamatsu3, Eiichi Takazawa4, Damon A H Teagle5, Peter B Kelemen6, Judith A. Coggon7 and The Oman Drilling Project Phase 2 Science Party, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (3)Hiroshima University, Higashi-Hiroshima, Japan, (4)Niigata University, Niigata, Japan, (5)University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom, (6)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (7)University of Southampton, Southampton, United Kingdom
Rapid Cooling of the Crust and Mantle at Hess Deep is Consistent with the Sheeted Sill Model for Accretion of Oceanic Crust (469693)
Nadine Lynne Grambling, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, United States, Nicholas J Dygert, University of Tennessee, Knoxville, TN, United States and Marlon M Jean, University of Rochester, Rochester, United States
Questioning the Penrose Paradigm: Insights from in-situ gabbroic lower ocean crust at Pito Deep (400560)
Michelle Gess1, Barbara E John2, Michael J Cheadle2, Tyler C Brown3, Susan Swapp1 and Jeffrey S Gee4, (1)University of Wyoming, Laramie, United States, (2)University of Wyoming, Geology & Geophysics, Laramie, United States, (3)University of Wyoming, Laramie, WY, United States, (4)Univ California San Diego, La Jolla, CA, United States
Origin of Serpentinite and Listvenite Near the Basal Thrust of the Samail Ophiolite Recorded in Oman Drilling Project Hole BT1B (472188)
Craig E Manning, University of California Los Angeles, Earth, Planetary and Space Sciences, Los Angeles, CA, United States, Shawn Lu, University of California Los Angeles, Earth, Planetary, and Space Science, Los Angeles, CA, United States, Peter B Kelemen, Lamont-Doherty Earth Observatory, Palisades, NY, United States and The Oman Drilling Project Phase 1 Science Party
Strontium isotope profile of Oman Drilling Project hole BT1B (435317)
Juan Carlos de Obeso, Lamont -Doherty Earth Observatory, Palisades, NY, United States, Yue Cai, Lamont-Doherty Earth Observatory, Palisades, United States, Peter B Kelemen, Lamont-Doherty Earth Observatory, Palisades, NY, United States and Oman Drilling Project Phase 1 Science Party

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