Feldspar

Meteorites that produce K-feldspar-rich ejecta blankets correspond to mass extinctionsOPEN ACCESS

02/12/2021 07:27 · by karmaka · in impact / impact-structures, meteorite

M.J. Pankhurst, C.J. Stevenson and B.C. Coldwell Journal of the Geological Society, 1 December 2021 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Meteorite impacts load the atmosphere with dust and cover the Earth’s surface with debris. They…

Primary feldspar in the Semarkona LL3.00 chondrite: Constraints on chondrule formation and secondary alteration

04/10/2018 07:10 · by karmaka · in aqueous alteration, chondrule, chondrule formation, LL, ordinary chondrite, thermal metamorphism

Jonathan A. Lewis, Rhian H. Jones Meteoritics & Planetary Science First published: 3 October 2018 LINK “Feldspar in ordinary chondrites (OCs) is often associated with thermal metamorphism, as a secondary mineral that forms from the…

Cathodoluminescence of high‐pressure feldspar minerals as a shock barometer

17/04/2018 08:01 · by karmaka · in L, ordinary chondrite, shock metamorphism

Masahiro Kayama, Toshimori Sekine, Naotaka Tomioka, Hirotsugu Nishido, Yukako Kato, Kiyotaka Ninagawa, Takamichi Kobayashi, Akira Yamaguchi Meteorit Planet Sci. . doi:10.1111/maps.13092 LINK “Cathodoluminescence (CL) analyses were carried out on maskelynite and lingunite in L6 chondrites…