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首页> 外文期刊>Tectonophysics: International Journal of Geotectonics and the Geology and Physics of the Interior of the Earth >Palaeomagnetism and rock magnetism of the Permian redbeds from the Velebit Mt. (Karst Dinarides, Croatia): dating of the early Alpine tectonics in the Western Dinarides by a secondary magnetization
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Palaeomagnetism and rock magnetism of the Permian redbeds from the Velebit Mt. (Karst Dinarides, Croatia): dating of the early Alpine tectonics in the Western Dinarides by a secondary magnetization

机译:Velebit山的二叠纪红床的古磁性和岩磁性。 (克罗地亚喀斯特Dinarides):通过二次磁化作用确定了西部Dinarides早期高山构造的年代

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摘要

The studied area of the Velebit Mt., a part of the Adria microplate, belonged to a NE margin of Gondwana during the Carboniferous and Permian. While the Carboniferous to the Early Permian was characterised by deposition of clastic rocks, younger sedimentation was dominated by a thick sequence of carbonate rocks. The Lower Permian deposits of the core part of the Velebit Mt. at Kosna and Crne Grede localities were investigated using palaeomagnetic and rock magnetic measurements. The main remanence carriers were recognized as haematite with an increasing contribution of SP/SD magnetite in younger subsections. The AMS fabric with low anisotropy ratio (1-3%) is strongly oblate at Kasna and weakly prolate at Crne Grede, reflecting differences in the contribution of magnetic phases.
机译:Velebit山的研究区域是Adria微板的一部分,在石炭纪和二叠纪期间属于冈瓦纳的NE边缘。虽然早二叠世的石炭纪以碎屑岩的沉积为特征,但较年轻的沉积以大量的碳酸盐岩为主。韦勒比特山核心部分的下二叠纪矿床。使用古地磁和岩石磁测量法研究了科斯纳和克雷格莱德地区的岩石。主要剩磁载体被认为是赤铁矿,在较年轻的部分中,SP / SD磁铁矿的贡献增加。具有低各向异性比率(1-3%)的AMS织物在卡斯纳(Kasna)呈强扁圆形,在克恩格勒德(Crne Grede)呈弱扁圆形,反映出磁性相的贡献存在差异。

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