莫里斯博士解释说，富含碳酸盐的水和石头发生反应，从而产生了碳酸盐。
Dr Morris explained that the mineral probably came from carbonate-rich water, which interacted with the rock.
莫里斯博士解释说，富含碳酸盐的水和石头发生反应，从而产生了碳酸盐。这也可以解释为什么火星过去比我们想像的暖和。
Dr Morris explained that the mineral probably came from carbonate-rich water, which interacted with the rock. This could also point to early Mars being warmer than previously thought.
美国航空航天局的火星探险号飞船在古谢夫陨石坑的哥伦比亚山探测到富含碳酸盐的石头。
Nasa's Mars Exploration Rover Spirit detected the carbonate-rich rocks in the Columbia Hills of Gusev Crater.
然而其它一些岩石也有放射性，常见于碳酸盐岩和富含长石的岩石。
However, other rocks are also radioactive, notably some carbonates and feldspar-rich rocks.
然而其它一些岩石也有放射性，常见于碳酸盐岩和富含长石的岩石。
However, other rocks are also radioactive, notably some carbonates and feldspar-rich rocks.
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