跳转到内容

File:Galileo I32 Thor SSI.png

页面内容不支持其他语言。
这个文件来自维基共享资源
维基百科,自由的百科全书

原始文件 (796 × 796像素,文件大小:383 KB,MIME类型:image/png


摘要

描述
English: Image of the Thor volcano by Galileo taken in October 2001. Thor was officially by the International Astronomical Union in 2006, after the publication of the original caption. This image data is discussed, along with the Thor plume in this image, in Turtle, E. P.; et al. (2004). "The final Galileo SSI observations of Io: orbits G28-I33". Icarus 169: 3–28. doi:10.1016/j.icarus.2003.10.014.

Original caption:

The source area of what had been a towering volcanic plume two months earlier lies in the far-right frame of this mosaic of images taken of Jupiter's moon Io by NASA's Galileo spacecraft on Oct. 16, 2001.

The region in the images includes the Zamama lava flow in Jupiter's northern hemisphere. The Zamama flow field emanates from the northernmost of two small volcanoes in the far left frame. These lava flows were not present in Voyager images of Io, so they formed some time between the Voyager 1 flyby in 1979 and the first Galileo observations of Io in 1996. Galileo also observed Zamama during Io encounters in 1999, and scientists identified narrow, long, dark lava flows thought to be similar to lava flows in Hawaii.

Moving northeast, the second and third frames of this mosaic contain lava flow fields and several unnamed volcanic depressions, called "paterae." It is unclear whether the broad, shield-like features or plateaus on which the paterae rest were created by eruptions from the paterae, or if they were preexisting features. Some fractures and dark lines suggest that the crust here is breaking up, creating cracks that magma can use to rise to the surface.

The far-right frame of this mosaic shows dark lava flows and bright spots. The bright spots are probably sulfur-bearing plume deposits, which are thought to be associated with the source of a plume eruption 500 kilometers (310 miles) high that was observed by the Galileo spacecraft in August, 2001. It was the largest plume eruption ever observed on Io.

The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Galileo mission for NASA's Office of Space Science, Washington, D.C. Additional information about Galileo and its discoveries is available on the Galileo mission home page at http://galileo.jpl.nasa.gov. Background information and educational context for the images can be found at http://galileo.jpl.nasa.gov/gallery/io.cfm.
日期
来源 http://photojournal.jpl.nasa.gov/catalog/PIA03531
作者 NASA/JPL/University of Arizona
授权
(二次使用本文件)
Public domain 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/zhNASA版权方针页面JPL图片使用方针。)
警告:

许可协议

Public domain 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/zhNASA版权方针页面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

描绘内容

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2010年2月25日 (四) 05:432010年2月25日 (四) 05:43版本的缩略图796 × 796(383 KB)Volcanopele{{Information |Description={{en|1=Image of the Thor volcano by ''Galileo'' taken in October 2001 Original Caption: The source area of what had been a towering volcanic plume two months earlier lies in the far-right frame of this mosaic of images tak

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: