898913

Lut 009, an H4 (S2, W4) ordinary chondrite meteorite from Lut Desert of Iran

، نويسنده Aix-Marseille Université,France Pourkhorsandi, H. , ، نويسنده Faculty of Sciences,Department of Geology,University of Tehran,Iran Mirnejad, H. , ، نويسنده Aix-Marseille Université,France Rochette, P. , ، نويسنده California Institute of Technology,USA Hassanzadeh, J.

فصلنامه سال 1394

علمي پژوهشي

6

125

130

Lut Desert , Ordinary chondrite , Iran , Meteorite

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 sle 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. FeNi 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 109 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 sle, inprogress investigations of other meteorites from the desert will open a window into the characteristics of meteorite concentrations in this region.

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فيزيك زمين و فضا

فيزيك زمين و فضا

فصلنامه با شماره پیاپی سال 1394

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