Articles | Volume 32, issue 1
https://doi.org/10.5194/ejm-32-187-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/ejm-32-187-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 Feb 2020
Research article |
| 17 Feb 2020
| 17 Feb 2020
Multistage origin of dunite in the Purang ophiolite, southern Tibet, documented by composition, exsolution and Li isotope characteristics of constituent minerals
Center for Advanced Research on the Mantle (CARMA), Key Laboratory of
Deep-Earth Dynamics of Ministry of Natural Resources, Institute of Geology,
Chinese Academy of Geological Sciences, Beijing 100037, China
Key Laboratory of Depositional Mineralization and Sedimentary
Minerals, Shandong University of Science and Technology, Qingdao 266590,
China
Jingsui Yang
Center for Advanced Research on the Mantle (CARMA), Key Laboratory of
Deep-Earth Dynamics of Ministry of Natural Resources, Institute of Geology,
Chinese Academy of Geological Sciences, Beijing 100037, China
Hans-Peter Schertl
Ruhr University Bochum, Faculty of Geosciences, Institute of
Geology, Mineralogy and Geophysics, 44780 Bochum, Germany
Key Laboratory of Depositional Mineralization and Sedimentary
Minerals, Shandong University of Science and Technology, Qingdao 266590,
China
Zhao Liu
MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of
Mineral Resources, CAGS, Beijing 100037, China
Xiangzhen Xu
Center for Advanced Research on the Mantle (CARMA), Key Laboratory of
Deep-Earth Dynamics of Ministry of Natural Resources, Institute of Geology,
Chinese Academy of Geological Sciences, Beijing 100037, China
Related authors
Fahui Xiong, Xiangzhen Xu, Enrico Mugnaioli, Mauro Gemmi, Richard Wirth, Edward S. Grew, Paul T. Robinson, and Jingsui Yang
Eur. J. Mineral., 32, 557–574, https://doi.org/10.5194/ejm-32-557-2020, https://doi.org/10.5194/ejm-32-557-2020, 2020
Short summary
Short summary
Two new nanominerals: titanium monophosphide and titanium disilicide, formed at pressures of Earth’s upper mantle by the action of methane and hydrogen from the mantle on basaltic melts in the Luobusa ophiolite (Tibet). The minerals were characterized by 3D electron diffraction, which can solve the crystal structures of phases less than a micrometer in size. The results contribute to our understanding of deeply subducted crustal rocks and their exhumation back to the Earth's surface.
Fahui Xiong, Xiangzhen Xu, Enrico Mugnaioli, Mauro Gemmi, Richard Wirth, Edward S. Grew, Paul T. Robinson, and Jingsui Yang
Eur. J. Mineral., 32, 557–574, https://doi.org/10.5194/ejm-32-557-2020, https://doi.org/10.5194/ejm-32-557-2020, 2020
Short summary
Short summary
Two new nanominerals: titanium monophosphide and titanium disilicide, formed at pressures of Earth’s upper mantle by the action of methane and hydrogen from the mantle on basaltic melts in the Luobusa ophiolite (Tibet). The minerals were characterized by 3D electron diffraction, which can solve the crystal structures of phases less than a micrometer in size. The results contribute to our understanding of deeply subducted crustal rocks and their exhumation back to the Earth's surface.
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Short summary
There have been many different ages found for ophiolite. We have researched these ages through fieldwork and microscopy to identify three types of dunite. These are useful ways to research the origin of ophiolitic magma. The Purang ophiolite, which crops out over an area of about 650 km2 in the western Yarlung–Zangbo suture zone, chiefly consists of mantle peridotite, pyroxenite and gabbro. It is a useful ultra-massif for showing the multistage nature of ophiolite.
There have been many different ages found for ophiolite. We have researched these ages through...
