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THE MARYVILLE METEORITE: A 1983 FALL OF AN L6 CHONDRITE
Author(s) -
Shervais John W.,
Taylor Lawrence A.,
Cirlin EunHee,
Jarosewich Eugene,
Laul J.C.
Publication year - 1986
Publication title -
meteoritics
Language(s) - English
Resource type - Journals
eISSN - 1945-5100
pISSN - 0026-1114
DOI - 10.1111/j.1945-5100.1986.tb01224.x
Subject(s) - plagioclase , chondrite , meteorite , geology , geochemistry , chondrule , olivine , feldspar , shock metamorphism , achondrite , parent body , ordinary chondrite , mineralogy , astrobiology , paleontology , quartz , physics
The Maryville chondrite fell on January 28, 1983 in eastern Tennessee. Compositions of olivine (Fa 24.5), orthopyroxene (Fs 20.8), plagioclase (An 10.6), along with the bulk composition and siderophile concentrations, indicate L‐group classification. The presence of highly equilibrated minerals, strongly recrystallized matrix, and the development of large, clear plagioclase grains suggest petrologic type 6 classification. Subsequent to metamorphism the meteorite was subjected to high transient pressures that converted some feldspar to glass, deformed the silicates, and caused small amounts of melting to occur. The effects of this shock event correspond to shock facies “d” or “e”.