نتایج جستجو برای: tectonic history
تعداد نتایج: 360326 فیلتر نتایج به سال:
, Earth Sci. Frontiers, 12(2), 247–262.Xu, C., Z. Zhou, P. Van Den Haute, R. A. Donelick,J. De Grave, M. A. Changqian, and P. W. Reiners (2005), Apatite fission track geochronology and itstectonic correlation in the Dabieshan orogen,central China, Sci. China, Ser. D, 48, 506–520.Xue, F., A. Kröner, T. Reischmann, and F. Lerch(1996a), Palaeozoic preand post-collision calc...
Key-words: Earthquakes, Tectonic movements, Stress, DisplaceKljuZne rije* Potresi, Tektonski pokreti, Stres, Pomaci struktura, ment, Seismotectonically active zone Seizmotektonski aktivna zona A permanent seismotectonic activity is present in the region of U podrutju sjevernog Velebita stalno je prisutna seizmotektonska northern Velebit. Through history a number of earthquakes magniaktivnast. U...
Introduction: The study area has various types of geological structures, especially various types of fractures and folds. Evidence indicates that Structures with specific mechanisms in this area have been affected by Compressional - Tensile tensions. Materials and methods: To determine the direction of stress in the fault zone north of Tehran, from various tectonic evidences i...
Rocks exposed west of the Coast Plutonic Complex in southern southeast Alaska form an imbricate thrust belt that overprints the tectonic boundary between two of the largest allochthonous crustal fragments in the North American Cordillera, the Insular and Intermontane composite terranes. In the Alexander terrane (Insular composite terrane), lower Paleozoic metavolcanic and metasedimentary rocks ...
Asian frogs of the tribe Paini (Anura: Dicroglossidae) range across several first-order tectono-morphological domains of the Cenozoic Indo-Asian collision that include the Tibetan Plateau, the Himalayas, and Indochina. We show how the tectonic events induced by the Indo-Asian collision affected the regional biota and, in turn, how the geological history of the earth can be viewed from a biologi...
Introduction: Planar deformation features (PDFs) in quartz are diagnostic impact evidence. Using light microscopy, it is often impossible to distinguish between PDFs and tectonic deformation lamellae. [1] showed that PDFs can be imaged using a cathodoluminescence (CL) detector in a scanning electron microscope (SEM) and that in SEM-CL images PDFs can be distinguished from tectonic microfracture...
This study presents a comprehensive low-temperature thermochronometric data set from the Shanxi Rift, Taihangshan, and eastern Ordos block in North China, including new apatite fission track (U-Th-Sm)/He published zircon data. We use these thermal history inversion models to reveal that Rift Taihangshan experienced an increase cooling rates between ca. 110–70 Ma 50–30 Ma. A preceding 160–135 ev...
The details of stratigraphic units and structures making up six coronae and their regional surroundings on Venus were examined using full resolution Magellan images and stereoscopic coverage. Altimetry and stereoscopic coverage were essential in establishing the local stratigraphic relationships and the timing of corona-related topography. The degree of preservation of signatures of earlier cor...
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