File:Ius_Chasma,_Valles_Marineris,_Mars.jpg
維基百科,自由的 encyclopedia
![File:Ius Chasma, Valles Marineris, Mars.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/0/06/Ius_Chasma%2C_Valles_Marineris%2C_Mars.jpg/800px-Ius_Chasma%2C_Valles_Marineris%2C_Mars.jpg)
本预览的尺寸:800 × 600像素。 其他分辨率:320 × 240像素 | 640 × 480像素 | 1,024 × 768像素 | 1,280 × 960像素 | 2,560 × 1,920像素。
原始文件 (2,560 × 1,920像素,文件大小:793 KB,MIME类型:image/jpeg)
摘要
描述Ius Chasma, Valles Marineris, Mars.jpg |
English: The Red Planet is home to Valles Marineris, the solar system's largest canyon. Within this canyon lies Ius Chasma. This image, which spans the floor of its southern trench, was taken by the Mars Reconnaissance Orbiter. The canyon is well-known for its fine stratigraphic layers modified by wind and water.
The outcrops contain interchanging layers of dark and bright rocks. The layered deposits consist of dark basalt lava flows and bright sedimentary layers. The sediments are likely to be from atmospheric dust, sand or alluvium from an ancient water source. The layers are visible on the gentle slopes above the canyon floor, in pitted areas, and in small mesa buttes. The floor of the canyon is littered with megaripples that are aligned in a north-south direction. Ius Chasma is believed to have been shaped by a process called sapping when water seeped from the layers of the cliffs and evaporated before it reached the canyon floor. Ius Chasma also has several structural features such as east trending normal faults and grabens that deformed the canyons. Recent geomorphological events include avalanches and minor sapping from gullies that continued to erode the canyon walls. |
日期 | |
来源 | NASA website; description,[1] high resolution image.[2] |
作者 | NASA/JPL-Caltech/Univ. of Arizona |
许可协议
Public domainPublic domainfalsefalse |
![]() |
本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。) | ![]() |
![]() |
警告:
|
说明
添加一行文字以描述该文件所表现的内容
此文件中描述的项目
描繪內容
22 9 2008
文件历史
点击某个日期/时间查看对应时刻的文件。
日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
---|---|---|---|---|---|
当前 | 2008年10月5日 (日) 15:58 | ![]() | 2,560 × 1,920(793 KB) | Elipongo | {{Information |Description={{en|1=The Red Planet is home to Valles Marineris, the solar system's largest canyon. Within this canyon lies Ius Chasma. This image, which spans the floor of its southern trench,m was taken by the Mars Reconnaissance Orbiter. T |
文件用途
以下页面使用本文件:
全域文件用途
以下其他wiki使用此文件:
- en.wikipedia.org上的用途
- hy.wikipedia.org上的用途
- pt.wikipedia.org上的用途
- ru.wikipedia.org上的用途
- uk.wikipedia.org上的用途
元数据
此文件中包含有扩展的信息。这些信息可能是由数码相机或扫描仪在创建或数字化过程中所添加。
如果此文件的源文件已经被修改,一些信息在修改后的文件中将不能完全反映出来。
_error | 0 |
---|