کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6440528 | 1638642 | 2016 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Tracking bubble evolution inside a silicic dike
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Pressure estimates from rapidly erupted crustal xenoliths constrain the depth of intrusion of the silicic lavas hosting them. This represents an opportunity for tracking magmatic bubble's evolution and quantifying the variation in bubble volume during rapid magma ascent through a volcanic dike just prior to eruption. The petrology, stable-isotope geochemistry and X-ray micro-tomography of dacites containing crustal xenoliths, erupted from a Neogene volcano in SE Spain, showed an increase in porosity from ~Â 1.7 to 6.4% from ~Â 19 to 13Â km depth, at nearly constant groundmass and crystal volumes. This result provides additional constraints for experimental and numerical simulations of subvolcanic magma-crust degassing processes in silicic systems, and may allow the characterization of volcanic eruptive styles based on volatile content.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Lithos - Volume 262, 1 October 2016, Pages 668-676
Journal: Lithos - Volume 262, 1 October 2016, Pages 668-676
نویسندگان
Antonio M. Álvarez-Valero, Satoshi Okumura, Fabio Arzilli, Javier Borrajo, Clemente Recio, Masao Ban, Juan C. Gonzalo, José M. BenÃtez, Madison Douglas, Osamu Sasaki, Piedad Franco, Juan Gómez-Barreiro, Asunción Carnicero,