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首页> 外文期刊>Geophysical Research Letters >Volcanism and resurfacing on venus at the full resolution of Magellan SAR data
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Volcanism and resurfacing on venus at the full resolution of Magellan SAR data

机译：麦哲伦SAR数据全分辨率下的火山活动和金星表面重铺

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摘要

We examine the importance of localized volcanism in resurfacing on Venus by analyzing the results of geologic mapping of a 12° × 12° area at the full resolution of Magellan SAR data. Resurfacing due to corona-, ridge-, and small volcano-related volcanism accounts for 27%, 6%, and 10% respectively of the mapped area. Mapping at the resolution of Magellan data, rather than a regional scale, gives corona-related flow unit areas that can differ individually by almost an order of magnitude, with a total increase of 28%, and more than three times as many identifiable units. A total of 2919 small volcanoes or vents less than 10 km in diameter were identified in the F-Map, with a mean diameter of 1.59 (s.d. = 1.08) km and densities of up to 36 small volcanoes per 50 km~2. Taken together, coronae, ridge eruptions, and small volcanoes probably make a significant contribution to resurfacing on Venus.
机译：我们通过分析以麦哲伦SAR数据的全分辨率对12°×12°区域进行地质成图的结果，研究了局部火山作用在金星表面重铺的重要性。因电晕，山脊和小型火山相关的火山活动而造成的重铺分别占地图区域的27％，6％和10％。以麦哲伦数据的分辨率而不是区域规模进行映射，得出的电晕相关流量单位面积可以分别相差近一个数量级，总共增加28％，是可识别单位的三倍以上。在F-Map中，总共发现了2919个直径小于10 km的小火山或喷口，平均直径为1.59（标准差= 1.08）km，每50 km〜2密度最高为36个小火山。总的来说，日冕，山脊喷发和小型火山可能对金星表面重塑起了重要作用。

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