کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4717266 | 1354429 | 2009 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental model for alkalic chloride-rich liquids in the upper mantle
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کلمات کلیدی
PrPGRTjadeiteCPXMRWPHLGRsLCCForsteriteSPLLCSPhlogopiteClinopyroxeneHigh-pressure experiment - آزمایشی با فشار بالاSpinel - اسپینلenstatite - تهدیدDiopside - دیوپسایدliquid immiscibility - عدم تقارن مایعMica - میکاGrossular - نقره ایPyrope - پودرKimberlites - کیمبرلیست هاGarnet - گارنت Upper mantle - گوشته فوقانی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
In order to expand an applicability of a model for evolution of the alkalic chloride-rich liquids in the upper mantle additional runs in chloride-carbonate-silicate systems involving model silicate end-members were performed at 5Â GPa. Results of experiments can be evaluated using the single scheme of phase relations. They show that interaction of the chloride-carbonate liquids with silicates produces a wide range of the chloride-rich carbonate-silicate melts, whose composition is determined by the chloride/carbonate ratio in the chloride-carbonate liquid and composition of the interacting silicate assemblage. The carbonate-silicate melts are immiscible with Si-Al-saturated chloride-carbonate melts. With decreasing temperature, evolution of both melts proceeds toward the homogeneous chloride-carbonate or carbonatitic liquid coexisting with silicates. Trends for melt evolution in the model systems closely reproduce the evolution of the carbonate-silicate and saline inclusions in kimberlitic diamonds. These trends suggest a diamond growth during cooling. In addition, experiments showed stronger effect of interaction of eclogite-related phases with the alkalic chloride-carbonate melts, in contrast to peridotite-related phases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Lithos - Volume 112, Supplement 1, November 2009, Pages 260-273
Journal: Lithos - Volume 112, Supplement 1, November 2009, Pages 260-273
نویسندگان
O.G. Safonov, N.V. Chertkova, L.L. Perchuk, Yu.A. Litvin,