High-pressure experiments of phase compositions in subducted ophicarbonate
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2020
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| _version_ | 1867168206291992576 |
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| author | Zhang, Yanfei Xu, Qijin Wang, Chao Jin, Zhenmin |
| author_facet | Zhang, Yanfei Xu, Qijin Wang, Chao Jin, Zhenmin |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Ophicarbonate is an important type of hydrothermally altered ultramafic rock that occurs in spreading centers and trenches, and in the interface between a subducting slab and the overlying mantle wedge. High-pressure experiments were performed at 10-15 GPa and 700-1100 oC to investigate the phase relations of subducted ophicarbonate. Ten samples were recovered after the experiments. In the recovered experimental charges, hydrous phases include phases A, D, and E; anhydrous minerals include clinopyroxene, orthopyroxene, garnet, magnesite, and olivine/wadsleyite. Phase compositions in the recovered charges were analyzed with an electron probe micro-analyzer (EPMA, JXA-8100), installed at the Key Laboratory of Submarine Geosciences, State Oceanic Administration. The accelerating voltage, beam current and beam size were 15 kv, 20 nA and 1-2 μm, respectively, for minerals, and 15 kv,10 nA and 5-30 μm, respectively, for quench phases. Count times were 10s for each of the measured element and 5s for the background. Standard materials were diopside for SiO2, MgO and CaO, jadeite for Na2O, K-feldspar for K2O, hematite for FeO, pyrope for Al2O3, NiO for NiO, apatite (Ca5P3F) for P2O5, rutile for TiO2, and eskolaite (Cr2O3) for Cr2O3. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_923662 |
| institution | PANGAEA |
| language | en |
| publishDate | 2020 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | High-pressure experiments of phase compositions in subducted ophicarbonate Zhang, Yanfei Xu, Qijin Wang, Chao Jin, Zhenmin Binary Object; Binary Object (File Size); Binary Object (Media Type); cold subduction zone; File content; hydrous carbonatitic liquids; Ophicarbonate Ophicarbonate is an important type of hydrothermally altered ultramafic rock that occurs in spreading centers and trenches, and in the interface between a subducting slab and the overlying mantle wedge. High-pressure experiments were performed at 10-15 GPa and 700-1100 oC to investigate the phase relations of subducted ophicarbonate. Ten samples were recovered after the experiments. In the recovered experimental charges, hydrous phases include phases A, D, and E; anhydrous minerals include clinopyroxene, orthopyroxene, garnet, magnesite, and olivine/wadsleyite. Phase compositions in the recovered charges were analyzed with an electron probe micro-analyzer (EPMA, JXA-8100), installed at the Key Laboratory of Submarine Geosciences, State Oceanic Administration. The accelerating voltage, beam current and beam size were 15 kv, 20 nA and 1-2 μm, respectively, for minerals, and 15 kv,10 nA and 5-30 μm, respectively, for quench phases. Count times were 10s for each of the measured element and 5s for the background. Standard materials were diopside for SiO2, MgO and CaO, jadeite for Na2O, K-feldspar for K2O, hematite for FeO, pyrope for Al2O3, NiO for NiO, apatite (Ca5P3F) for P2O5, rutile for TiO2, and eskolaite (Cr2O3) for Cr2O3. |
| title | High-pressure experiments of phase compositions in subducted ophicarbonate |
| topic | Binary Object; Binary Object (File Size); Binary Object (Media Type); cold subduction zone; File content; hydrous carbonatitic liquids; Ophicarbonate |
| url | https://doi.org/10.1594/PANGAEA.923662 |