کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1773801 | 1021145 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The high-pressure phase relation of the MgSO4–H2O system and its implication for the internal structure of Ganymede
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
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چکیده انگلیسی
We have determined the phase relation of the MgSO4–H2O binary system using an externally heated diamond anvil cell in the compositional range of 0–30 wt.% MgSO4, and under temperature and pressure conditions from 298 to 500 K and up to 4.5 GPa. Using our experimental results, we were able to estimate the composition of the ice mantle of the large icy satellites of Jupiter, such as Ganymede.In our experiments, we identified the following phases in the MgSO4–H2O system up to 4 GPa at 298 K: Ices VI and VII, magnesium heptahydrate, MgSO4·7H2O, and a liquid phase. The present phase relations suggest that there may be a deep internal ocean down to a depth about 800 km in the interior of Ganymede.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Icarus - Volume 211, Issue 1, January 2011, Pages 648–654
Journal: Icarus - Volume 211, Issue 1, January 2011, Pages 648–654
نویسندگان
Ryo Nakamura, Eiji Ohtani,