کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9522075 | 1634959 | 2005 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
2-D numerical simulations of groundwater flow, heat transfer and 4He transport - implications for the He terrestrial budget and the mantle helium-heat imbalance
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم زمین و سیاره ای (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: 2-D numerical simulations of groundwater flow, heat transfer and 4He transport - implications for the He terrestrial budget and the mantle helium-heat imbalance 2-D numerical simulations of groundwater flow, heat transfer and 4He transport - implications for the He terrestrial budget and the mantle helium-heat imbalance](/preview/png/9522075.png)
چکیده انگلیسی
Our simulations also indicate that in order for both heat and He to be in steady-state in recently formed crust, the presence of an advective dominated regime is required (k â¥Â 10â 16 m2). Under these conditions, only in total absence of contact with ASW (e.g., an atmospheric component provided by freshwater or seawater) is the total 4He / heat flux ratio expected to equal the radiogenic production ratio. Lower 4He / heat fluxes in an advective dominated regime require the incorporation of an ASW component. We argue that the observed low ocean mantle 4He / heat flux results, at least partially, from sea water incorporation within mid-ocean ridge basalts. Our simulations also suggest that 4He transport is in transient state in recently formed crust for permeabilities â¤Â 10â 17 m2. Under these conditions, low to very low mantle He excesses and thus total He / heat fluxes of up to several orders of magnitude lower than the radiogenic production ratios are expected.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Earth and Planetary Science Letters - Volume 237, Issues 3â4, 15 September 2005, Pages 893-910
Journal: Earth and Planetary Science Letters - Volume 237, Issues 3â4, 15 September 2005, Pages 893-910
نویسندگان
Maria Clara Castro, Delphine Patriarche, Patrick Goblet,