PETROLOGY AND CLASSIFICATION OF THE GARRAF, SPAIN CHONDRITE

Autor:	Alfredo San Miguel, Elbert A. King, G. H. Conrad, Klaus Keil
Rok vydání:	1986
Předmět:	Undulose extinction Recrystallization (geology) Olivine Geochemistry Mineralogy Pyroxene Maskelynite engineering.material Meteorite Chondrite engineering General Earth and Planetary Sciences Plagioclase Geology General Environmental Science
Zdroj:	Meteoritics. 21:125-129
ISSN:	0026-1114
DOI:	10.1111/j.1945-5100.1986.tb01231.x
Popis:	Microscopic and electron microprobe studies indicate that the Garraf meteorite is a highly-recrystallized chondrite of petrologic type 6. Olivine (Fa24.7; PMD 1.1) and low-Ca pyroxene (Fs20.9; PMD 1.1) compositions indicate that it belongs to the L-group. Based on contents of noble gases, pervasive fracturing of silicates, common undulose extinction of olivine and plagioclase, and the lack of melt pockets and maskelynite, Garraf is placed into shock facies b. It is concluded that Garraf is a highly recrystallized L6b chondrite that, after recrystallization, was cataclased and comminuted by shock.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1915373175db31b7c31511c6bd45abb6 https://doi.org/10.1111/j.1945-5100.1986.tb01231.x Zobrazit plný text záznamu Plný text