Introduction: geological and geophysical studies in the Trans-European Suture Zone
Introduction: geological and geophysical studies in the Trans-European Suture Zone
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简介：跨欧洲缝合带的地质和地球物理研究
DOI：
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发表时间：
1997
影响因子：
2.3
通讯作者：
A. Żelaźniewicz
中科院分区：
文献类型：
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作者：
T. Pharaoh;R. England;J. Verniers;A. Żelaźniewicz
跨欧缝合带（trans-European Suture Zone，TESZ）是东欧大陆（EEC）古老的前寒武纪岩石圈与西欧最新的新元古代-古生代移动的活动带之下的年轻岩石圈之间的边界。前者的特点是厚地壳（C。45公里），低热流和构造热年龄约3000至800 Ma，后者由一个较薄的地壳（c. 30 km），热流值较高，构造年龄为560 ~ 290 Ma。在加里东期和华力西期的造山作用中，这些对比鲜明的地壳类型并置在一起。在二叠纪-中生代伸展和新生代反转期间，TESZ的结晶基底在很大程度上被缝合带内的构造复活所控制的沉积盆地所掩盖。克拉通和移动的带的前二叠纪演化，以及缝合线的位置，从孤立的露头，数百个钻孔和地球物理证据推断。现有的地震资料表明，TESZ相当狭窄，在岩石圈的各个层次都有表现，并深入到软流圈。遥测研究表明，跨特提斯区的软流圈和岩石圈地幔速度结构的差异持续到c。400公里（Zielhus和Nolet，1994年）。
The Trans-European Suture Zone (TESZ) is the boundary between ancient Precambrian lithosphere of the East European Craton (EEC) and the younger lithosphere beneath the latest Neoproterozoic–Palaeozoic mobile belts of western Europe. The former is characterized by a thick crust (c. 45 km), low heat flow and a tectono-thermal age of about 3000 to 800 Ma, the latter by a thinner crust (c. 30 km), higher heat flow and a tectonothermal age of 560 to 290 Ma. These contrasting types of crust were juxtaposed during the Caledonian and Variscan orogenic episodes. The crystalline basement of the TESZ is largely concealed by sedimentary basins controlled by the reactivation of structures within the suture zone during Permian–Mesozoic extension and Cenozoic inversion. The pre-Permian evolution of the craton and the mobile belts, and the location of the sutures, is inferred from isolated outcrops, hundreds of boreholes and geophysical evidence. Existing seismic data demonstrates that the TESZ is rather narrow and has an expression at all levels of the lithosphere and deep into the asthenosphere. Teleseismic studies have demonstrated that the differences in the velocity structure of the asthenospheric and lithospheric mantle across the TESZ persist to depths of c. 400 km (Zielhus & Nolet, 1994).