Lut 009, an H4 (S2, W4) ordinary chondrite meteorite from Lut Desert of Iran | ||
| فیزیک زمین و فضا | ||
| مقاله 12، دوره 41، شماره 4، 1394، صفحه 125-130 اصل مقاله (1.38 M) | ||
| شناسه دیجیتال (DOI): 10.22059/jesphys.2015.55100 | ||
| نویسندگان | ||
| Hamed Pourkhorsandi* 1؛ Hassan Mirnejad2؛ Pierre Rochette3؛ Jamshid Hassanzadeh4 | ||
| 1Ph.D. Student, Aix-Marseille Université/CNRS/IRD, CEREGE UM34, Aix-en-Provence, France | ||
| 2Associate Professor, Department of Geology, Faculty of Sciences, University of Tehran, Iran | ||
| 3Professor, Aix-Marseille Université/CNRS/IRD, CEREGE UM34, Aix-en-Provence, France | ||
| 4Associate Researcher, Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, USA | ||
| چکیده | ||
| Lut 009 meteorite was found during a trip to Lut Desert of Iran in March,2012, at 30°20.38' N, 59°09.04' E. Chemical compositions of equilibrated olivine (Fa19.3 ± 0.5) and orthopyroxene (Fs16.7 ± 0.6) show that the meteorite sample belongs to H group of ordinary chondrites, while the texture (chondrule petrography and plagioclase size) suggests a petrologic type of 4. The Lut 009 has been very weakly shock altered and has a shock stage of S2. Fe-Ni is completely weathered whereas less than 5 percent of troilite is still present. Therefore, the meteorite has a weathering grade of W4. Magnetic susceptibility is log χ =4.75 (χ in 10-9 m3/kg) and, thus, consistent with a W4 H ordinary chondrite. Here we report description of Lut 009 in the first extended study on a meteorite from Lut Desert. Along with this sample, in-progress investigations of other meteorites from the desert will open a window into the characteristics of meteorite concentrations in this region. | ||
| کلیدواژهها | ||
| Iran؛ Lut Desert؛ Meteorite؛ Ordinary chondrite | ||
| مراجع | ||
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