کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4686804 1635558 2008 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cliff retreat and talus development at the caldera wall of Mount St. Helens: Computer simulation using a mathematical model
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Cliff retreat and talus development at the caldera wall of Mount St. Helens: Computer simulation using a mathematical model
چکیده انگلیسی

To simulate the landform evolution at the caldera wall of Mount St. Helens, USA, a mathematical model for talus development was applied to model the topographic change during the 11years from the volcanic eruption, i.e., from formation of the cliff. Simulated results show that the topographic change is predicted to be large for about 10years after the eruption and to decline thereafter. If snow accumulation in the talus slope deposits is negligible, the talus top will not reach the cliff top within 300years after the eruption. Talus growth in Mount St. Helens was much faster than that in the Chichibu Basin, Japan. This may indicate the low strength and/or high weathering rate of the rockwall of Mount St. Helens, resulting in rapid production of debris and rapid retreat of the cliff.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geomorphology - Volume 97, Issues 3–4, 15 May 2008, Pages 697–711
نویسندگان
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