CALCULATION OF DIKE TRAJECTORIES FROM VOLCANIC CENTERS
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dc.contributor.author | Mériuax C. | |
dc.contributor.author | Lister J.R. | |
dc.date.accessioned | 2021-05-21T07:34:19Z | |
dc.date.available | 2021-05-21T07:34:19Z | |
dc.date.issued | 2002 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=42262361 | |
dc.identifier.citation | Journal of Geophysical Research: Solid Earth, 2002, 107, 4, 10-1-10-11 | |
dc.identifier.issn | 2169-9356 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/28469 | |
dc.description.abstract | Patterns of dike swarms around volcanic centers or above mantle plumes are interpreted by a mechanical analysis of regional and dike-induced stresses, in which dike emplacement is controlled and guided by the stress state. Comparisons of dike patterns with patterns of principal-stress trajectories caused by a source and a regional stress system are commonly used to infer paleostresses. However, dike trajectories are determined by a complex interaction between dike-induced stresses and the source/regional stress system. We present numerical calculations based on a novel boundary-integral formulation, which examines the simultaneous effects of regional stresses, magma pressure, and dike injection on the local stress state around a continously curving dike. Dike paths are calculated from the condition that dikes propagate by model I failure. Our results suggest that the magnitude of the regional stresses would be 2-5 times higher than previous estimates based on principal-stress trajectory analysis. | |
dc.title | CALCULATION OF DIKE TRAJECTORIES FROM VOLCANIC CENTERS | |
dc.type | Статья |
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