Evidence of space weathering in regolith breccias II: Asteroidal regolith breccias
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چکیده
منابع مشابه
Diatreme Breccias in British Columbia*
INTRODUCTION Over the last decade considerable interest has been expressed in diarreme breccias ofpc~ssible kimberlitic affinity in British Columbia (Fipke, 1983; Fipk.: and Capell, 1983; Grieve, 1981 and 1982; Roberts, et a/., 1980; Woodcock, 1978; etc.). This interest has been heightened by the reported recent discovery of diamonds in pipes north of Golden (Durnmet, rr a / . . 1985; Northcote...
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PROCESSES AND SPACE WEATHERING. A. Przepiórka 1 , S. Crites 2 , S. Quintana 3 , C. Santiago 4 , T. Trabucchi 5 , D. A. Kring 6 ; 1 Space Research Centre of the Polish Academy of Sciences, Warsaw, Poland, [email protected]; 2 University of Hawai’i, Honolulu, HI; 3 Brown University, Providence, RI; 4 University of Texas at El Paso, El Paso, TX; 5 University of New Brunswick, New Brunswick, C...
متن کاملSpace Weathering of Rock Surface without Regolith: Laboratory Simulation of Spectral Change,
OF SPECTRAL CHANGE, S. Sasaki, T. Nimura, T. Hiroi, M. Ishiguro, N. Hirata, M. Abe, Y. Ueda, A. Yamamoto, B. E. Clark, Mizusawa Astrogeodynamics Observatory, National Astronomical Observatory of Japan, Ohshu, Iwate 023-0861, Japan ([email protected]), Institute of Space and Astronautical Sciences (ISAS), Japan Aerospace Exploration Agency (JAXA), Kanagawa 229-8510, Japan, Department of Geologic...
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Introduction: Lunar regolith breccias provide direct samples of the complicated, highly mixed nature of the Moon’s near-surface environment. By understanding their makeup it is hoped to be able to extrapolate to how large-scale remote-sensing datasets will detect geochemical information from a mixture of different lunar lithological terranes. Discussed here is an investigation into three lunar ...
متن کاملForeign Materials in Polymict Breccias from Vesta
Previous studies have documented fragments of petrogeneti-cally unrelated materials in HED polymict breccias [e.g., 1,2,3,4,5,6]. Observed clasts range in size from as large as 5 mm in diameter [2,3] to very small (~25 μm diameter) [4]. Most fall into two groups: clasts with textures similar to CM materials and those similar to CR materials [2,3,4]. CM-like clasts predominate among larger fragm...
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ژورنال
عنوان ژورنال: Meteoritics & Planetary Science
سال: 2010
ISSN: 1086-9379
DOI: 10.1111/j.1945-5100.2010.01151.x