High Resolution Imaging Science Experiment (HiRISE) images of volcanic terrains from the first 6 months of the Mars Reconnaissance Orbiter Primary Science Phase
High Resolution Imaging Science Experiment (HiRISE) images of volcanic terrains from the first 6 months of the Mars Reconnaissance Orbiter Primary Science Phase
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DOI：
10.1029/2007je002968
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发表时间：
2008-04-24
影响因子：
4.8
通讯作者：
Milazzo, Moses
中科院分区：
文献类型：
--
作者：
Keszthelyi, Laszlo;Jaeger, Windy;Milazzo, Moses
在火星勘测轨道飞行器的主要科学阶段的前6个月，高分辨率成像科学实验（HiRISE）相机已经返回了火星火山地形多样性的图像。虽然这些特征中的许多在早期的成像中被注意到，但它们现在以前所未有的清晰度被看到。我们发现，一些火山口产生的主要是喷出的产品，而其他主要是火山碎屑。洪水熔岩在湍流和温和的喷发中就位，产生了带顶的通道和膨胀特征。然而，火星上的许多地区覆盖太重，无法识别米级火山特征。特别是，主要的火山机构被广泛覆盖，尽管一些地幔可能是火山碎屑物质而不是大气尘埃。背景成像仪（CTX）的支持成像和立体成像的地形信息在解释HiRISE数据方面都是非常宝贵的。
In the first 6 months of the Mars Reconnaissance Orbiter's Primary Science Phase, the High Resolution Imaging Science Experiment (HiRISE) camera has returned images sampling the diversity of volcanic terrains on Mars. While many of these features were noted in earlier imaging, they are now seen with unprecedented clarity. We find that some volcanic vents produced predominantly effusive products while others generated mostly pyroclastics. Flood lavas were emplaced in both turbulent and gentle eruptions, producing roofed channels and inflation features. However, many areas on Mars are too heavily mantled to allow meter-scale volcanic features to be discerned. In particular, the major volcanic edifices are extensively mantled, though it is possible that some of the mantle is pyroclastic material rather than atmospheric dust. Support imaging by the Context Imager (CTX) and topographic information derived from stereo imaging are both invaluable in interpreting the HiRISE data.