کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9522602 | 1634957 | 2005 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Strontium, hydrothermal systems and steady-state chemical weathering in active mountain belts
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم زمین و سیاره ای (عمومی)
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چکیده انگلیسی
We compare model results with Sr fluxes and isotopic composition of riverine waters from the Southern Alps of New Zealand, an area that is frequently used as an example of a steady-state collisional orogen. As our model predicts, roughly 50% of Sr flux is from the weathering of calcite in the areas of highest uplift along the west-flank of the Southern Alps. This proportion decreases substantially (<Â 20% from calcite) in the areas of lower uplift east of the Southern Alps. Because chemical weathering rates are approximately a factor of two higher in the rapidly uplifting areas as compared to the more stable regions a significant portion of strontium flux from rivers on South Island of New Zealand is from the weathering of calcite.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Earth and Planetary Science Letters - Volume 238, Issues 3â4, 15 October 2005, Pages 351-366
Journal: Earth and Planetary Science Letters - Volume 238, Issues 3â4, 15 October 2005, Pages 351-366
نویسندگان
C. Page Chamberlain, Jacob R. Waldbauer, Andrew D. Jacobson,