火星上的古代地力学和全球规模的水文学
R J Phillips1, M T Zuber, S C Solomon
1McDonnell Center for the Space Sciences and Department of Earth and Planetary Sciences, Washington University, St. Louis, MO 63130, USA.
Science (New York, N.Y.)
|April 3, 2001
概括
火星上的Tharsis上升塑造了行星的重力和地形,影响了古老的山谷网络. 它的火山活动可能创造了更温暖的气候,允许早期的火星河流.
科学领域:
- 行星科学 行星科学
- 地质物理学 地质物理学
- 地质地质地质地质地质地
背景情况:
- 塔西斯升起是火星上一个主要的火山省.
- 它的巨大负载显著影响火星的全球形状和重力场.
研究的目的:
- 为了解释火星的全球形状和重力异常.
- 为了了解Tharsis上升对火星地形和气候的影响.
- 为了研究古代火星山谷网络的形成.
主要方法:
- 分析火星的全球形状和长波长引力场.
- 地质解释地形特征和重力异常.
- 火山负荷及其气候后果的建模.
主要成果:
- 塔尔西斯的上升解释了负重力异常和塔尔西斯周围的地形低谷.
- 它还解释了阿拉伯大地和乌托邦的重力和地形高峰.
- 这些特征在诺亚时代末期形成,影响了山谷网络的形成.
- 塔尔西斯火山的火山喷气可能支持了更温暖的气候.
结论:
- 塔尔西斯的上升是火星大规模地质和地形特征的主要驱动因素.
- 塔尔西斯引起的气候变化很可能促进了火星上早期河流系统的发展.
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