...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Planetary and space science >Heat flow in Triton: Implications for heat sources powering recent geologic activity
【24h】

Heat flow in Triton: Implications for heat sources powering recent geologic activity

机译：海卫一的热流：热源为近期地质活动提供动力的意义

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Triton's surface shows clear evidences of resurfacing processes such as volcanism, tectonic structures and a very low presence of impact basins, which indicates that Triton's interior could remain active currently. It is generally assumed in icy satellites that the depth of faulting associated with large faults corresponds to the brittle-ductile transition (BDT), and the properties of large faults penetrating to the BDT depth can be used to obtain information on the mechanical behavior of the lithosphere, and potentially can contribute to constrain the thermal state of a planetary body. Here we present a detailed study of Raz Fossae, suggesting that this structure is not only limited to the graben originally described in previous works. Our study shows that north of the classical Raz Fossae there is another trough set with similar structural characteristics that can be interpreted as part of the same system of faults. We have calculated surface heat flows for Triton from the depth of the BDT under both structures: Raz Fossae and the new northern trough set from a detailed analysis of the troughs widths, taking into account the possible composition of the ice shell (H2O and NH3 center dot 2H(2)O). Our results show surface heat flows values much higher than those estimated in previous studies by modeling radiogenic production and tidal dissipation for fixed orbital eccentricities. Furthermore, our results suggest regional differences in the pattern of heat loss throughout Triton's lithosphere.
机译：特里顿的表面清楚地显示出重铺过程的证据，例如火山作用，构造结构和撞击盆地的很少存在，这表明特里顿的内部目前可能仍然活跃。通常在冰冷的卫星中假定与大断层有关的断层深度对应于脆性-延性转变（BDT），并且渗透到BDT深度的大断层的性质可以用来获得有关断层的力学行为的信息。岩石圈，并有可能有助于限制行星体的热态。在这里，我们对Raz Fossae进行了详细的研究，表明这种结构不仅限于先前作品中最初描述的the。我们的研究表明，在经典Raz Fossae的北部还有另一个具有相似结构特征的槽组，可以将其解释为同一断层系统的一部分。我们已经从BDT在以下两种结构下的深度计算了Triton的表面热流：Raz Fossae和新的北部槽组，通过对槽宽的详细分析，并考虑了冰壳的可能成分（H2O和NH3中心）点2H（2）O）。我们的结果表明，通过对固定轨道偏心率的放射源产生和潮汐耗散进行建模，地表热流值大大高于以前的研究估计的值。此外，我们的结果表明整个Triton岩石圈的热损失模式存在区域差异。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号