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Petrology and Geochemistry of Ungrouped Dunitic Achondrites Northwest
| Content Provider | Semantic Scholar |
|---|---|
| Author | Vaci, Zoltan Day, James M. D. Paquet, Marine Agee, Carl B. |
| Copyright Year | 2020 |
| Abstract | Introduction: The dunitic achondrite meteorites Northwest Africa (NWA) 12217 and 12562 are highly unusual monomict fragmental breccias (Fig. 1). They have petrological characteristics similar to brachinites and brachinite-like achondrites [1,2] and oxygen isotopes that plot in the region of the howardite-eucrite-diogenite (HED) meteorites, angrites, and brachinites [3]. Mineralogically they are unique, containing more magnesian olivine than any previously characterized dunitic meteorite. In this study, we report the petrology and geochemistry of these meteorites which are likely cumulate rocks from a highly differentiated planetary body. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.hou.usra.edu/meetings/lpsc2020/pdf/1751.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |