收稿日期: 2004-02-25
修回日期: 2004-07-22
网络出版日期: 2005-03-25
A PRELIMINARY EXPLORATION ON THE GEOMORPHOLOGY ENVIRONMENT OF MARS REGION LANDED BY THE EXPLORES
Received date: 2004-02-25
Revised date: 2004-07-22
Online published: 2005-03-25
孙广友 . 火星探测器着陆区地貌环境特征初释[J]. 地球科学进展, 2005 , 20(3) : 366 -370 . DOI: 10.11867/j.issn.1001-8166.2005.03.0366
The landforms of two landing regions used by the Courage and the Opportunity are both plains with differences in the form and the matter structure and the dynamic process. The region landed by Courage mainly is a wind erosion area and the Opportunity mainly is a wind deposit area. And the former belongs to the plate gravel plain, or call it a gravel desert. The latter belongs to wave sand plain with rock bed, a sand desert with rock hill. The wind should be a main power and the windy direction should also be perennially same. These wind landforms are the results had transformed from the water landforms, certainly, the change of the landform power is a great. According to the landform classification, they belong to the dry landform by the windy power, and there is no the melt-freeze process. If the existences of river, lake, forest, grassland and marsh were possible on the ground of the Mars, the marsh wetland would be one which was disappeared in the last. There was big water in Mars in past time, but there was no direct evidence found in the tow landing regions, if there is water, it will only store in the deep of the underground, and the explorers are difficult in finding liquid water. The change of water in Mars may be a complex model.
Key words： The explorer of Mars; Mars landform; Water and life.
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