证据表明,火星最近的地下水漏和地表排水
1Malin Space Science Systems, Post Office Box 910148, San Diego, CA 92191-0148, USA.
概括
最近的火星地形表明,火星表面下方存在液态水源. 这些由火星轨道卫星摄像头观测的年轻地质特征表明地下水透和下水.
科学领域:
- 行星科学 行星科学
- 地质地质地质地质地质地
- 水文学 水文学
背景情况:
- 自1999年3月以来,火星全球测量器火星轨道器摄像头 (MOC) 的高分辨率图像揭示了火星上相对较年轻的地形.
- 这些地形主要位于中高度,特别是在南半球.
研究的目的:
- 为了调查火星表面下浅处的液态水源的存在.
- 分析地形特征,表明地下水透和地表排水.
主要方法:
- 分析火星轨道卫星摄像机获得的高分辨率火星图像.
- 对峡谷,南极坑和火星山谷的地形分析.
- 根据叠加和没有横切特征的基础上测定地形的年代.
主要成果:
- 相对较年轻的地形,包括峡谷,南极坑和火星山谷的特征,表明最近的地质活动.
- 地形特征与涉及地下水漏和地表冲水的过程相一致.
- 这些地形的年轻程度可以通过它们在年轻表面上的叠加和缺乏叠加或交叉的特征,如撞击坑或沙丘,来证明.
- 这些特征的有限大小和分布表明受限制的地下水库.
结论:
- 证据表明,火星上浅处存在可访问的液态水源.
- 地下水的透和地表排水可能是塑造火星景观的活跃过程.
- 这些发现表明局部和潜在的有限的地下水库.
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