Oblique rifting and the Late Eocene-Oligocene demise of Laurasia with inception of Molloy Ridge: Deformation of Forlandsundet Basin, Svalbard
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- 作者：Karen L. Kleinspehn ; klein004@umn.edu ; Christian Teyssier
- 关键词：Tertiary Laurasian continental bridge ; Svalbard ; Late Eocene&ndash ; Oligocene Forlandsundet basin ; Oblique rifting ; Transpression to transtension transition ; Molloy Ridge ; Hydraulically fractured cobbles
- 刊名：Tectonophysics
- 出版年：2016
- 出版时间：14 December 2016
- 年：2016
- 卷：693
- 期：part_PB
- 页码：363-377
- 全文大小：9347 K
- 卷排序：693
文摘
Tertiary Forlandsundet basin, Svalbard records Laurasian continental-bridge rupture. Fractured clasts with injected matrix, stylolites and faults record Late Eocene NNW–SSE extrusion. Younger structures record latest Eocene transtension in the Forlandsundet graben. NW–SE extension was established at least 9 m.y. before Molloy oceanic lithosphere. Paleogene basin encapsulates the transition from oblique convergence to divergence.