کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9527184 | 1636981 | 2005 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Seismic and geological structure of the crust in the transition from Baltica to Palaeozoic Europe in SE Poland-CELEBRATION 2000 experiment, profile CEL02
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Seismic and geological structure of the crust in the transition from Baltica to Palaeozoic Europe in SE Poland-CELEBRATION 2000 experiment, profile CEL02 Seismic and geological structure of the crust in the transition from Baltica to Palaeozoic Europe in SE Poland-CELEBRATION 2000 experiment, profile CEL02](/preview/png/9527184.png)
چکیده انگلیسی
The crustal thickness along CEL02 varies from 32-35 km in the USB to 45-47 km beneath the TESZ and the EEC. The USB is a clearly distinctive crustal block with the characteristic high velocity lower crust (7.1-7.2 km/s), interpreted as a fragment of Gondwana. The Kraków-Lubliniec Fault is a terrane boundary produced by soft docking of the USB with the MB. The MaÅopolska crust fundamentally differs from the USB and has a strong connection with Baltica. It is a transitional, 150- to 200-km wide unit composed of the extended Baltican lower crust and the overlying low velocity (5.15-5.9 km/s) Neoproterozoic metasediments in the up to 18-km thick upper crust. The Åysogóry Unit has its crustal structure identical with that of MaÅopolska, thus it is connected with Baltica and cannot be interpreted as a Gondwana-derived terrane. Higher velocity and density bodies found below the Mazovia-Lublin Graben at a depth of â¼12 km and at the base of the lower crust, might be a result of mantle-derived mafic intrusions accompanying the extension of Baltica. By the preliminary 2D gravity modelling, we have reconfirmed the need for considering the increased TESZ mantle density in comparison to the EEC and USB mantle.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tectonophysics - Volume 401, Issues 1â2, 25 May 2005, Pages 55-77
Journal: Tectonophysics - Volume 401, Issues 1â2, 25 May 2005, Pages 55-77
نویسندگان
M. Malinowski, A. Żelaźniewicz, M. Grad, A. Guterch, T. Janik, CELEBRATION Working Group CELEBRATION Working Group,