کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4406967 1307335 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure, composition and P–T conditions of rutile from diamondiferous gneiss of the Saxonian Erzgebirge, Germany
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات ژئوشیمی و پترولوژی
پیش نمایش صفحه اول مقاله
Microstructure, composition and P–T conditions of rutile from diamondiferous gneiss of the Saxonian Erzgebirge, Germany
چکیده انگلیسی

The chemical composition and microstructure of rutile grains in a ultra-high pressure metamorphic gneiss of the Saxonian Erzgebirge, Germany have been studied by Raman spectroscopy, SEM, EMPA and TEM. Rutile inclusions in garnet contain free dislocations, iron-enriched dislocations and exsolved ilmenite lamellae, while subgrain boundaries are observed in rutile grains of the rock matrix. The previously reported α-PbO2 type TiO2 phase could not be confirmed by our TEM observations. On the basis of Zr solubility in the rutile and the presence of microdiamonds, minimum metamorphic peak conditions of 3.95 GPa and 915 °C are estimated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemie der Erde - Geochemistry - Volume 72, Issue 1, January 2012, Pages 25–30
نویسندگان
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