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Maskelynite formation via solid-state transformation: Evidence of infrared and x-ray anisotropy

Journal Article · · Journal of Geophysical Research. Planets
DOI:https://doi.org/10.1002/2014JE004764· OSTI ID:1193229
 [1];  [2];  [1];  [1];  [1];  [3];  [1]
  1. Stony Brook Univ., Stony Brook, NY (United States)
  2. Stony Brook Univ., Stony Brook, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Auburn Univ., Auburn, AL (United States); Planetary Science Institute, Tucson, AZ (United States)

We present optical microscopy, micro-Raman spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, high-energy X-ray total scattering experiments, and micro-Fourier transform infrared (micro-FTIR) spectroscopy on shocked labradorite from the Lonar Crater, India. We show that maskelynite of shock class 2 is structurally more similar to fused glass than to crystalline plagioclase. However, there are slight but significant differences – preservation of original pre-impact igneous zoning, anisotropy at Infrared wavelengths, X-ray anisotropy, and preservation of some intermediate range order – which are all consistent with a solid-state transformation formation of maskelynite.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
OSTI ID:
1193229
Report Number(s):
BNL--108115-2015-JA
Journal Information:
Journal of Geophysical Research. Planets, Journal Name: Journal of Geophysical Research. Planets Journal Issue: 3 Vol. 120; ISSN 2169-9097
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (12)

Effects of the γ-irradiation strength and basalt additive content on the mechanical performance and dielectric response of polypropylene films journal January 2019
Unconventional high-pressure Raman spectroscopy study of kinetic and peak pressure effects in plagioclase feldspars journal January 2020
Nanoscale chemical characterisation of phase separation, solid state transformation, and recrystallization in feldspar and maskelynite using atom probe tomography journal October 2018
Partial Melting‐Induced Chemical Evolution in Shocked Crystalline and Amorphous Plagioclase From the Lunar Meteorite Mount DeWitt 12007 journal July 2019
New triple oxygen isotope data of bulk and separated fractions from SNC meteorites: Evidence for mantle homogeneity of Mars journal April 2016
The provenance, formation, and implications of reduced carbon phases in Martian meteorites journal August 2016
Exploring the variability of argon loss in Apollo 17 impact melt rock 77135 using high‐spatial resolution 40 Ar/ 39 Ar geochronology journal January 2019
Detailed mineralogy and petrology of highly shocked poikilitic shergottite Northwest Africa 6342 journal January 2019
Shock‐induced phase transformation of anorthitic plagioclase in the eucrite meteorite Northwest Africa 2650 journal April 2019
On the formation of diaplectic glass: Shock and thermal experiments with plagioclase of different chemical compositions journal April 2019
Partial amorphization of experimentally shocked plagioclase: A spectroscopic study journal March 2020
Shock-Induced Olivine-Ringwoodite Transformation in the Shock Vein of Chondrite GRV053584 journal April 2018

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