کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8142100 1523882 2018 55 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Large-scale lava-ice interactions on Mars: Investigating its role during Late Amazonian Central Elysium Planitia volcanism and the formation of Athabasca Valles
ترجمه فارسی عنوان
تعاملات گدازه و یخ در مقیاس بزرگ در مریخ: بررسی نقش آن در آتشفشانی مرکزی الیشیوم مرکزی آمازون و تشکیل آتاباسکا والس
کلمات کلیدی
مریخ، آب و هوای مریخ، ایسس، فرآیندهای زمین شناسی، آتشفشان،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فیزیک زمین (ژئو فیزیک)
چکیده انگلیسی
We find that surface ice and lava-ice interactions could have influenced the geomorphology of Central Elysium Planitia by contributing to the formation of the regions platy-ridged volcanic plains texture and rootless cones. Large-scale lava-ice interactions in Central Elysium Planitia are found to be able to readily supply the water volumes needed to form the Athabasca Valles system, but additional mechanisms are required to cause meltwater confinement and release to supply requisite discharges. Of the several potential mechanisms which could have led to meltwater confinement and release, the most likely are supra/englacial melt accumulation with outflow triggered by the flotation of a confining ice dam, and supra/englacial meltwater accumulation released by top-down supraglacial overflow. A simple analysis of these processes indicates that the rates of discharge necessary to form Athabasca Valles can be supplied while adhering to the geomorphic constraints of the system. Therefore, we conclude that the formation of the Athabasca Valles outflow channel system (and possibly other outflow channels in the region) could plausibly have been the result of surficial lava-ice interactions through meltwater confinement, accumulation, and release, providing an advantageous alternative to classical groundwater outburst models.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Planetary and Space Science - Volume 158, 1 September 2018, Pages 96-109
نویسندگان
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