کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9953754 1523475 2019 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Decline of crater obliteration rates during early Martian history
ترجمه فارسی عنوان
کاهش میزان دفع دهی دهانه در طول تاریخ اولیه مریخ
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم فضا و نجوم
چکیده انگلیسی
A change in the global climate on early Mars is suspected from the geologic evidence of warmer wetter conditions that prevailed during the Noachian but stands in contrast to the dry and cold conditions observed currently. However, the timing and evolution of this climatic change represents a gap in our understanding of the history of Mars. Here, we document the time-dependence of the crater obliteration rates on Mars that decreased continuously between 3.8 Ga and 3 Ga. Our results indicate that the erosion responsible for crater modification and obliteration declined gradually through the Noachian and into the Hesperian periods. These results suggest that the climatic conditions also changed gradually and the amount of water available on the surface of Mars slowly decreased over time.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Icarus - Volume 317, 1 January 2019, Pages 427-433
نویسندگان
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