Transmission electron microscope texture and crystal chemistry of coexisting ortho- and clinopyroxene in the Antarctic ureilite Frontier Mountain 90054: Implications for thermal history
Frontier Mountain (FRO) 90054, from Antarctica, is a rare clino- and orthopyroxene-bearing ureilite with a coarse equigranular oriented texture (grains up to 3 mm); it is classified as a low-shock Ca-rich type. The crystal chemistry of its clinopyroxene (Wo(39.3)En(54.6)Fs(6.1)), orthopyroxene (En(8...
Main Authors: | , , , |
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Other Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
1997
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Subjects: | |
Online Access: | http://hdl.handle.net/11381/2368105 |