Knowledge Resource Center for Ecological Environment in Arid Area
| 来源ID | NTRS_Document_ID: 19940026603 |
| State of stress, faulting, and eruption characteristics of large volcanoes on Mars | |
| Mcgovern, Patrick J.; Solomon, Sean C. | |
| 英文摘要 | The formation of a large volcano loads the underlying lithospheric plate and can lead to lithospheric flexure and faulting. In turn, lithospheric stresses affect the stress field beneath and within the volcanic edifice and can influence magma transport. Modeling the interaction of these processes is crucial to an understanding of the history of eruption characteristics and tectonic deformation of large volcanoes. We develop models of time-dependent stress and deformation of the Tharsis volcanoes on Mars. A finite element code is used that simulates viscoelastic flow in the mantle and elastic plate flexural behavior. We calculate stresses and displacements due to a volcano-shaped load emplaced on an elastic plate. Models variously incorporate growth of the volcanic load with time and a detachment between volcano and lithosphere. The models illustrate the manner in which time-dependent stresses induced by lithospheric plate flexure beneath the volcanic load may affect eruption histories, and the derived stress fields can be related to tectonic features on and surrounding martian volcanoes. |
| 英文关键词 | ELASTIC PLATES FINITE ELEMENT METHOD GEOLOGICAL FAULTS LITHOSPHERE MARS SURFACE MARS VOLCANOES PLANETARY GEOLOGY STRESS ANALYSIS STRESS DISTRIBUTION TECTONICS VISCOELASTICITY VOLCANOES VOLCANOLOGY DEFORMATION LOADS (FORCES) MAGMA |
| 出版年 | 1993 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| URL | http://hdl.handle.net/2060/19940026603 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/259206 |
| 推荐引用方式 GB/T 7714 | Mcgovern, Patrick J.,Solomon, Sean C.. State of stress, faulting, and eruption characteristics of large volcanoes on Mars,1993. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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