Phase Composition and Microstructure of UHPHT Vein Glass from Giant Diamondiferous Kara Impact Crater by Raman Mapping (original) (raw)
2019, IOP Conference Series: Earth and Environmental Science
AI-generated Abstract
2D and 3D Raman mapping allows for in situ visualization of mineral phase distributions and relationships in rock samples, enabling scientists to analyze complex mineral aggregates and inclusions. This study showcases the advantages of 2D Raman mapping in investigating ultrahigh-pressure high-temperature (UHPHT) vein glasses, particularly coesite found within diamondiferous impactites of the Kara meteorite crater. Findings indicate that coesite is centrally located within UHPHT silica glass, which is primarily amorphous, and that high luminescence areas correspond to smectite micro-drop inclusions. The effective application of 2D Raman mapping has been demonstrated in revealing mineral phase distributions in UHPHT glass.
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