岩岛上的山脉起源于推力断层和大规模的质量运动
1P. M. Schenk, Lunar and Planetary Institute, Houston, TX 77058, USA. M. H. Bulmer, Center for Earth and Planetary Science, National Air and Space Museum, Washington, DC 20560, USA.
Science (New York, N.Y.)
|March 21, 1998
概括
伊奥的尤博亚蒙特斯山是由10.5公里的地升起和倾斜形成的. 这引发了巨大的斜率失败,创造了太阳系最大的碎片围之一.
科学领域:
- 行星地质学 行星地质学
- 火山学 火山学是一门学科.
- 地质物理学 地质物理学
背景情况:
- 木星的火山卫星Io表现出动态的地质过程.
- 之前的观测表明,在Io上存在复杂的山脉形成机制.
研究的目的:
- 用旅行者立体图像分析Io上的Euboea Montes的形成.
- 了解岛山脉形成的地质过程.
主要方法:
- 旅行者号对尤博亚蒙特斯的立体图像的分析.
- 地理解释地形和结构特征.
主要成果:
- 尤博亚蒙特斯升高10.5公里,倾斜6度.
- 在西北侧发生了巨大的斜坡故障,形成了一个大型碎片前.
- 这次故障涉及到刚性岩层 (厚度≥11公里) 上的未结合层 (厚度2公里).
结论:
- 在Io上形成山脉可能涉及根深蒂固的推力断层和块旋转.
- 深处的压缩,可能是由于地的回收,驱动这些过程.
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