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Detailed Reference Information |
Pascal, C., van Wijk, J.W., Cloetingh, S.A.P.L. and Davies, G.R. (2002). Effect of lithosphere thickness heterogeneities in controlling rift localization: Numerical modeling of the Oslo Graben. Geophysical Research Letters 29: doi: 10.1029/2001GL014354. issn: 0094-8276. |
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We present 2-D thermo-mechanical and numerical modeling at lithospheric scale to assess the impact of pre-existing lithosphere thickness contrast on rift localization. The results of the modeling suggest that thickness heterogeneity was responsible for focussing rifting and passive asthenospheric upwelling in the Permo-Carboniferous Oslo Graben at the western margin of the Fennoscandian Shield. These findings are consistent with inferences from recent studies showing that both the crust-mantle boundary and the base of the lithosphere are and were deeper at the eastern margin of the Oslo Graben, resulting in contrasting crust and lithosphere thickness. |
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Abstract |
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Keywords
Tectonophysics, Continental margins and sedimentary basins, Tectonophysics, Continental tectonics--extensional, Tectonophysics, Dynamics of lithosphere and mantle--general, Tectonophysics, Rheology--crust and lithosphere, Structural Geology, Local crustal structure |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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