کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9522465 1634969 2005 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spinel in Martian meteorite SaU 008: implications for Martian magnetism
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم زمین و سیاره ای (عمومی)
پیش نمایش صفحه اول مقاله
Spinel in Martian meteorite SaU 008: implications for Martian magnetism
چکیده انگلیسی
Shergotty-Nakhla-Chassigny (SNC) meteorites provide the only available samples of Martian material. The stable permanent magnetization of SNC meteorites has been traditionally attributed to magnetite (Fe3O4) or pyrrhotite (Fe7S8). On the basis of rock magnetic, microscopic, and electron microprobe analyses on rock chips and mineral separates, we suggest that a new material (Fe-Cr-Ti spinel) is responsible for the stable paleomagnetic record of Martian meteorite SaU 008. It is possible that SaU 008 acquired a primary remanence of thermal origin from the Martian crustal field. However, this proposition requires further testing because the effect of shock events on Fe-Cr-Ti spinel is unknown.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Earth and Planetary Science Letters - Volume 232, Issues 3–4, 15 April 2005, Pages 287-294
نویسندگان
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