Ni-Fe alloy possibly associated with reduced magmatic fluids in lower-crustal gabbro, IODP Hole U1309D, Atlantis Massif, Mid-Atlantic Ridge
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概要
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A Ni-Fe alloy (Ni3.8Fe0.1Co0.1) was found in olivine-poor gabbro recovered from the Integrated Ocean Drilling Program (IODP) Hole U1309D, Atlantis Massif, 30°N on the Mid-Atlantic Ridge. Ni-Fe alloys are one of the unique minerals formed during serpentinization; however, our finding establishes that Ni-Fe alloys are also formed in the gabbroic crust possibly associated with extremely reduced magmatic fluids. The occurrence of the Ni-Fe alloy suggests that oceanic lower-crustal gabbros as well as serpentinites may be potential reservoirs of abiogenic CH4.
- 日本鉱物科学会の論文
- 2009-10-01
著者
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Yamasaki Toru
Institute Of Geology And Geoinformation Geological Survey Of Japan (aist)
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Takeda Fumiaki
Department Of Natural History Sciences Graduate School Of Science Hokkaido University
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MAEDA Jinichiro
Department of Earth and Planetary Sciences, Graduate School of Science, Hokkaido University
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NIINO Akiko
Department of Natural History Sciences, Graduate School of Science, Hokkaido University
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Niino Akiko
Department Of Natural History Sciences Graduate School Of Science Hokkaido University
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Maeda Jinichiro
Department Of Natural History Sciences Faculty Of Science Hokkaido University
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- Ni-Fe alloy possibly associated with reduced magmatic fluids in lower-crustal gabbro, IODP Hole U1309D, Atlantis Massif, Mid-Atlantic Ridge