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Sci Rep. 2018 Jun 29;8(1):9851. doi: 10.1038/s41598-018-28191-6.

High pressure minerals in the Château-Renard (L6) ordinary chondrite: implications for collisions on its parent body.

Scientific reports

Ioannis Baziotis, Paul D Asimow, Jinping Hu, Ludovic Ferrière, Chi Ma, Ana Cernok, Mahesh Anand, Dan Topa

Affiliations

  1. Department of Natural Resources Management and Agricultural Engineering, Agricultural Univ. of Athens, Iera Odos 75, 11855, Athens, Greece.
  2. California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, California, 91125, USA. [email protected].
  3. California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, California, 91125, USA.
  4. Natural History Museum, Burgring 7, A-1010, Vienna, Austria.
  5. Planetary and Space Sciences, The Open University, Milton Keynes, MK7 6AA, United Kingdom.
  6. Department of Earth Sciences, The Natural History Museum, London, SW7 5BD, United Kingdom.

PMID: 29959423 PMCID: PMC6026127 DOI: 10.1038/s41598-018-28191-6

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

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