The Mineralogy and Petrology of Anomalous Eucrite Emmaville
نویسندگان
چکیده
W. Mittlefehldt, D. K. Ross, R. C. Greenwood, M. Anand, I. A. Franchi, M. M. Grady, and B. L. A. Charlier. Department of Physical Sciences, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK (Email: [email protected]), Astromaterials Research Office, NASA Johnson Space Center, Houston, TX, 77058, USA, Jacobs Technology, 2224 Bay Area Blvd. Houston Tx 77058, USA, Department of Earth Sciences, Natural History Museum, London, SW7 5BD, UK.
منابع مشابه
Petrology of the Unbrecciated Eucrite, Cumulus Hills 04049
Introduction: Eucrite meteorites represent earlyformed (~4.557-4.565 Ga) crustal basalts and basaltic to gabbroic cumulates from the howardite-eucritediogenite (HED) parent body or bodies (e.g., [1]). The HED are commonly thought to originate from the asteroid Vesta (e.g., [2-3]), although O-isotopes for eucrites [4] and diogenites [5] indicate more than one parent body. Approximately 85% of eu...
متن کاملEstimating the modal mineralogy of eucrite and diogenite meteorites using visiblenear infrared reflectance spectroscopy
Reliable quantitative mapping of minerals exposed on Vesta’s surface is crucial for understanding the crustal composition, petrologic evolution, and surface modification of the howardite, eucrite, and diogenite (HED) parent body. However, mineral abundance estimates derived from visible–near infrared (VIS–NIR) reflectance spectra are complicated by multiple scattering, particle size, and nonlin...
متن کاملMineralogy and Petrology of Stardust Particles Extracted from the Walls
Introduction: Since the return to Earth of the Wild 2 comet samples by the Stardust mission, most of the studies have been performed on terminal particles located at the end of the deceleration tracks. However, the major fraction of the cometary material is unevenly distributed along the track walls [1,2]. Particles within samples extracted from the walls show strong collectinduced thermal alte...
متن کاملPetrology, geochemistry and origin of Hesaruiyeh Granitoid, east of Zahedan, southweast Iran
Hesaruiyeh granitoid is located about 85 Km east of Zahedan city, in the Sistan suture zone. This granitoid occurs as small stocks in Cretaceous ophiolite melange and Eocene Flysch. This granitoid is composed of granite, granodiorite and diorite. Granite and granodiorite consist mainly of quartz, plagioclase, orthoclase, biotite and hornblende and diorite is composed of plagioclase and hornblen...
متن کامل