کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5779592 1634677 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental insight into redox transfer by iron- and sulfur-bearing serpentinite dehydration in subduction zones
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم زمین و سیاره ای (عمومی)
پیش نمایش صفحه اول مقاله
Experimental insight into redox transfer by iron- and sulfur-bearing serpentinite dehydration in subduction zones
چکیده انگلیسی
The evolution of mineral modes and Fe3+/Fetotal with temperature in our synthetic samples shows similar trends to what has been reported in serpentinite rocks collected, for example, along a metamorphic transect in the western Alps. We show that a large amount of O2-equivalent - up to 10 mol/kg of rock - can be generated at temperature around 450 °C due to the presence of oxides and sulfides such as magnetite and pyrite. Owing to the poor capacity of aqueous fluid to transfer redox conditions, we surmise that this O2-equivalent is “consumed” at the scale of the lithospheric-mantle top which is partially serpentinized and therefore bear strong redox gradients.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Earth and Planetary Science Letters - Volume 479, 1 December 2017, Pages 133-143
نویسندگان
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