Anisotropy of absorption bands in some lunar, meteoritic, and terrestrial pyroxenes
Autor: | Alvin J. Cohen |
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Rok vydání: | 1973 |
Předmět: | |
Zdroj: | The Moon. 7:307-321 |
ISSN: | 1573-0794 0027-0903 |
DOI: | 10.1007/bf00564637 |
Popis: | The optical anisotropy of individual spin-forbidden transitions of Fe3+ and Fe2+ ions and spin-allowed transitions of Ti3+ and of Fe2+ ions are observed in complex clinopyroxene crystals in lunar rock in both the pigeonite core and the augite overgrowth. Spectral bands are compared to similar ones in terrestrial augite from Maui, Hawaii, meteoritic augite in the Angra dos Reis achondrite, meteoritic shocked hypersthene in the Tatahauine achondrite and meteoritic diopside in the Nakhla achondrite. |
Databáze: | OpenAIRE |
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