澳大利亚古代岩石与火星生命搜寻
Ancient Australian Rocks and the Search for Life on Mars
摘要:
我们讨论的遥感研究的结果,揭示了一个重要的岩石单元的新的细节为主的两种矿物,可以与火山作用(橄榄石)和生命(碳酸盐)。这项研究使用了一种新的CRISM数据分析技术,确定了一个不存在碳酸盐或粘土的区域,只有大粒度的橄榄石。这一发现为Jezero陨石坑内橄榄石碳酸盐岩的形成和历史提供了新的线索,火星2020探测器将对其进行探索。
英文摘要:
We discuss the results of a remote sensing study that has revealed new details about an important rock unit dominated by two minerals that can be associated with volcanism (olivine) and life (carbonate). The study, which used a new analysis technique on CRISM data, identified a region where no carbonates or clays are present, only large grain size olivine. This discovery shines new light on the formation and history of the olivine-carbonate rock within Jezero crater that will be explored by the Mars 2020 rover.
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