also compared with results obtained with flat-earth models and found that there is general agreement between the two types of Understanding the glacial isostatic adjustment (GIA) and even archeology. In particular, observations of GIA have been used to infer mantle viscosity and ice history [1,2]. E...
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| Format: | Text |
| Language: | English |
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2006
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.566.4729 http://www.whigg.cn/data/download/kfsPDF/2006_01.pdf |
| Summary: | also compared with results obtained with flat-earth models and found that there is general agreement between the two types of Understanding the glacial isostatic adjustment (GIA) and even archeology. In particular, observations of GIA have been used to infer mantle viscosity and ice history [1,2]. Earth and Planetary Science Lettersprocess is important in the study of many branches ofmodeling although spherical earth models are more realistic because they take into account the interaction between ice complexes and there is no problem with edge effects. The effects of lateral heterogeneity on uplift rate are found to be large enough to be resolved by current GPS technology. It confirms that the effect of the reverse viscosity contrast in the transition zone under the Laurentian and Fennoscandian craton may mask the effect of lateral heterogeneity in the neighboring layers on uplift rate. For tangential motion, lateral heterogeneity is found to be able to overprint the divergent motion from the centers of rebound predicted in laterally homogeneous models. This finding is new for Laurentide and is due to the contribution from the deep part of the lower mantle – although the contribution from the upper mantle is also important on tangential motion, its effects are compromised by the |
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