کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6440054 | 1638345 | 2014 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dome collapse mechanisms and block-and-ash flow emplacement dynamics inferred from deposit and impact mark analysis, Mono Craters, CA
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
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چکیده انگلیسی
Impact marks on clast faces that resulted from clast-to-clast interactions recorded details of the impacting mechanism. We analyzed ~Â 15,000 marks and report for the first time their size, shape, and sorting to infer the flow regime of the BAF during emplacement, to a distance of ~Â 2.6Â km from the vent. Clast-to-clast interactions occurred over a broad spectrum from purely collisional (normal to clast faces) to purely frictional (clasts shearing in a unidirectional flow), and recorded a transition to a more frictional flow regime in distal reaches as the sliding head of the BAF decelerated and halted. Finally, we briefly differentiate a similar, but previously undescribed older deposit that predates the 1325-1350Â A.D. North Mono eruptive episode.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Volcanology and Geothermal Research - Volume 276, 15 April 2014, Pages 1-9
Journal: Journal of Volcanology and Geothermal Research - Volume 276, 15 April 2014, Pages 1-9
نویسندگان
R.L. Dennen, M.I. Bursik, O. Roche,