R7: Petrology, Mineralogy and Economic geology (Joint session with SRG)

[R7-03] Permeability profile in the Oman Drilling Project inferred from onboard measurements of resistivity at drilling vessel “CHIKYU”

*Ikuo Katayama¹, Natsue Abe², Kohei Hatakeyama¹, Yuya Akamatsu¹, Keishi Okazaki², Ole Ivar Ulven⁴, Gilbert Hong⁵, Wenlu Zhu⁶, Benoit Cordonnier⁴, Katsuyoshi Michibayashi³, Marguerite Godard⁷, Peter Kelemen⁸, The Oman Drilling Project Phase 2 Science Party The Oman Drilling Project Phase 2 Science Party (1. Hiroshima University, 2. JAMSTEC, 3. Nagoya University, 4. University of Oslo, 5. Seoul National University, 6. University of Maryland, 7. Universitè Montpellier, 8. Columbia University)

Keywords:permeability, resistivity, Oman Drilling Project, mantle drilling

Permeability is a key property that controls heat and chemical exchange in the oceanic lithosphere as well as microbial activity in the sub-seafloor. Although direct measurements of permeability were not made on board D/V Chikyu during analysis of cores from the Oman Drilling Project, we estimated permeability profiles based on onboard measurements of dry and wet resistivities.