Widespread Tissintite in Strongly Shock‐Lithified Lunar Regolith Breccias

نویسندگان

چکیده

Abstract Shock‐lithification is a fundamental process of making rocks from fine‐grained and porous regoliths on the surface Moon. Previous investigations have constrained potential shock pressures during shock‐lithification based experimental numerical simulations. However, pressure temperature conditions not been directly inferred natural lunar breccias. Here, we report discovery widespread tissintite in strongly shock‐lithified meteorites, accompanied occasionally by Si‐rich corundum coesite. The coexistence coesite absence stishovite molten regions indicate 4–8 GPa, which might be boundary between weak strong shock‐lithification. Meanwhile, presence imposes constraint ∼2,300 K for intergranular melts. This has profound significance interpreting behaviors volatile moderately elements remanent magnetization records

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ژورنال

عنوان ژورنال: Geophysical Research Letters

سال: 2021

ISSN: ['1944-8007', '0094-8276']

DOI: https://doi.org/10.1029/2020gl091554