کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5779262 | 1634387 | 2017 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Pre-Variscan Ba Enrichment in Rocks Adjacent to the Sardic Unconformity (SW Sardinia, Italy)
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
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چکیده انگلیسی
Rocks from the Cabitza and Monte Argentu Fms, adjacent to the Sardic Unconformity (SU), are characterized by anomalously high concentrations of Ba. Very high Ba contents had been previously observed only in the late Variscan mineralization of the “Quartzite” horizon. This horizon is located between the Gonnesa and the Portixeddu Fms, in a reduced sequence due to the complete erosion of the Cabitza and Monte Argentu Fms. High Ba contents, with six values exceeding 1000 ppm, up to 4363 ppm, indicate that even in its early tectonic movements, before the Late Variscan mineralizing event, the SU acted as a major pathway for the circulation of Ba-rich fluids. Ba contents significantly decrease with the distance from the SU, with local maxima in correspondence of more heterogeneous and frequent permeable layers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Earth and Planetary Science - Volume 17, 2017, Pages 173-176
Journal: Procedia Earth and Planetary Science - Volume 17, 2017, Pages 173-176
نویسندگان
Stefano Battaglia, Fabrizio Gherardi,