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1c5c32b11b5ad1bd9c846a77784abc38 |
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5a9f28970e2d0d0ba76f7ab60ee890ba |
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ext-75f95bfaf980acf38875e90622b3afcd |
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ext-956428711b5d58f6a1a9054302e9606c |
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Creator |
ext-a4dadc72ab774204daa200035e4970df |
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Creator |
ext-da4c2c61e80923b4947517041bab7890 |
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ext-eefd07e9e0fe5926e54a72a9789f9378 |
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Creator |
ext-f0b0f6972df83da1050799a0d06235d9 |
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Date |
2018-06-29 |
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Is Part Of |
repository |
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Is Part Of |
p20452322 |
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abstract |
We report the first discoveries of high-pressure minerals in the historical L6 chondrite
fall Château-Renard, based on co-located Raman spectroscopy, scanning electron microscopy
(SEM) with energy-dispersive X-ray spectroscopy and electron backscatter diffraction,
electron microprobe analysis, and transmission electron microscopy (TEM) with selected-area
electron diffraction. A single polished section contains a network of melt veins from
~40 to ~200 μm wide, with no cross-cutting features requiring multiple vein generations.
We find high-pressure minerals in veins greater than ~50 μm wide, including assemblages
of ringwoodite + wadsleyite, ringwoodite + wadsleyite + majorite-pyrope<sub>ss</sub>,
and ahrensite + wadsleyite. In association with ahrensite + wadsleyite at both SEM
and TEM scale, we find a sodic pyroxene whose Raman spectrum is indistinguishable
from that of jadeite but whose composition and structure are those of omphacite. We
discuss constraints on the impact record of this meteorite and the L-chondrites in
general. |
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authorList |
authors |
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issue |
1 |
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status |
published |
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status |
peerReviewed |
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uri |
http://data.open.ac.uk/oro/document/656018 |
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uri |
http://data.open.ac.uk/oro/document/656019 |
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uri |
http://data.open.ac.uk/oro/document/656020 |
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uri |
http://data.open.ac.uk/oro/document/656021 |
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uri |
http://data.open.ac.uk/oro/document/656022 |
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uri |
http://data.open.ac.uk/oro/document/656023 |
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uri |
http://data.open.ac.uk/oro/document/661232 |
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volume |
8 |
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type |
AcademicArticle |
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type |
Article |
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label |
Baziotis, Ioannis; Asimow, Paul D.; Hu, Jinping; Ferrière, Ludovic; Ma, Chi; Cernok,
Ana ; Anand, Mahesh and Topa, Dan (2018). High pressure minerals in the Château-Renard
(L6) ordinary chondrite: implications for collisions on its parent body. Scientific
reports, 8(1), article no. 9851. |
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label |
Baziotis, Ioannis; Asimow, Paul D.; Hu, Jinping; Ferrière, Ludovic; Ma, Chi; Cernok,
Ana ; Anand, Mahesh and Topa, Dan (2018). High pressure minerals in the Château-Renard
(L6) ordinary chondrite: implications for collisions on its parent body. Scientific
reports, 8(1), article no. 9851. |
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Title |
High pressure minerals in the Château-Renard (L6) ordinary chondrite: implications
for collisions on its parent body |
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in dataset |
oro |