Deep Norden： Highlights of the lithospheric structure of Northern Europe, Iceland, and Greenland
Deep Norden： Highlights of the lithospheric structure of Northern Europe, Iceland, and Greenland
复制标题
北欧深处：北欧、冰岛和格陵兰岩石圈结构的亮点
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
H. Thybo
中科院分区：
文献类型：
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作者：
I. Artemieva;H. Thybo
我们提出了一个审查的地球物理模型的大陆岩石圈北欧，其中包括北欧国家（丹麦，冰岛，芬兰，挪威，瑞典），格陵兰岛，和邻近地区的邻国。地壳和岩石圈地幔的结构反映了北欧从前寒武纪波罗的海盾和格陵兰岛的陆壳增生和俯冲到中生代裂谷、火山作用、岩浆壳形成、俯冲和陆-陆碰撞的地质演化过程。冰岛下方地幔柱的存在并没有被现有的地震证据所证明。它与北大西洋的分裂有关。65 My ago是不确定的，但冰岛和格陵兰之间的海峡中超过30公里厚的地壳可能表明了羽流的轨迹。利用地震的结果（反射和折射剖面、P波和S波、体波和表面波层析成像）、热、重力和岩石学研究，我们回顾了Norden的地壳和岩石圈地幔结构，并提出了该地区岩石圈物理性质的综合模型，包括地壳和岩石圈厚度的横向变化图以及岩石圈地幔的成分变化图。
We present a review of geophysical models of the continental lithosphere of Norden, which includes the Nordic countries (Denmark, Iceland, Finland, Norway, Sweden), Greenland, and the adjacent regions of the neighbouring countries. The structure of the crust and the lithospheric mantle reflects the geologic evolution of Norden from Precambrian terrane accretion and subduction within the Baltic Shield and Greenland to Phanerozoic rifting, volcanism, magmatic crust formation, subduction and continent-continent collision at the edges of the cratons and at the plate boundaries. The proposed existence of a mantle plume below Iceland has not been uniquely demonstrated by the available seismic evidence. Its connection to the break-up of the North Atlantic Ocean c. 65 My ago is uncertain, but the >30 km thick crust in the strait between Iceland and Greenland may indicate the track of the plume. Using the results from seismic (reflection and refraction profiles, P- and S-wave, body-wave and surface-wave tomography), thermal, gravity, and petrologic studies, we review the structure of the crust and the lithospheric mantle of Norden and propose an integrated model of physical properties of the lithosphere of the region, including maps of lateral variation in crustal and lithospheric thicknesses and compositional variation in the lithospheric mantle.