另外，马沃斯山谷的表层暴露在平原的表面，探测器易于着陆和导航。
The layers are exposed at the surface on plains that would be easy for the rover to land on and navigate.
马沃斯山谷的环境历史依然是火星上最令人费解的谜团之一，粘土的存在强烈的暗示了这是水的作用结果。
While its environmental history remains one of the planet's most enduring mysteries, the presence of clays strongly hints at the role of water.
在经过很多研究以后，科学家们确认马沃斯山谷拥有火星上最为丰富的粘土特征，并且还有一系列不同组成的矿物层可供研究，这点和盖尔环形山颇为相似。
Multiple studies have confirmed that it has the planet's strongest clay signature, and, like Gale, an array of intriguing mineral layers with different composition.
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