نتایج جستجو برای: nappe

تعداد نتایج: 544  

Journal: :Austrian Journal of Earth Sciences 2022

Abstract The Meran-Mauls nappe stack is part of the Austroalpine unit in South Tyrol (Italy). There it holds a special position directly front Southalpine Dolomites indenter and west Tauern Window. It situated hanging wall unit, above NW dipping segment Periadriatic fault system, namely fault. Also all other sides are defined by Oligocene-Miocene strike-slip normal faults. Based on recent mappi...

2014
R. A. Strachan

7 The Unst Ophiolite is the best exposed of a chain of early Ordovician ophiolites in the 8 Scottish Caledonides and is widely regarded as having formed in a supra-subduction zone 9 setting within the Iapetus Ocean. Reinterpretation of sheeted dykes suggests that it formed 10 as an oceanic core complex, presumably during subduction roll-back immediately prior to 11 obduction onto the Laurentian...

Journal: :Geodinamika i Tektonofizika 2022

The paper presents the results of detailed structural analysis and 40 Ar/ 39 Ar dating deformations in Golets Vysochaishii deposit area. geological studies showed folded-deformation sequence from large lying folds through axial-plane cleavage formation to quartz-filled fractures. syntectonic sericite yielded ages two Hercynian tectonic impulses – 340 320 Ma. This stage is characterized by earli...

2013

Assemblages of agglutinated foraminifers ranging from the Aptian to the lower Eocene were studied in the Bile Karpaty unit. One hundred ninety species (43 of them undetermined) were studied taxonomically. The *species Glomospira s traniki and ~ u r r i t e l l e l l a reversa are 'new. Several species of the abyssal "Krashenimikov" fauna (Buzasina inflata, Haplophragmoides decussatus, H . perex...

Journal: :Mineralogy and petrology 2011
Jolanta Burda Urs Klötzli

In situ LA-MC-ICP-MS U-Pb zircon geochronology combined with cathodoluminescence imaging were carried out to determine protolith and metamorphic ages of orthogneisses from the Western Tatra Mountains (Central Western Carpathians). The metamorphic complex is subdivided into two units (the Lower Unit and the Upper Unit). Orthogneisses of the Lower Unit are mostly banded, fine- to medium-grained r...

2009
M. Farhad Howladar Sharmin Afroz Shofiqul Islam

Finite elements analysis is a powerful tool, often used for analyzing problems on stress, that can be successfully employed to analyze the finite deformation of geological structures in a mathematical form on a digital computer. Over the last century, great earthquakes with magnitudes of 7->8 have struck in the NW Himalaya; the 1905 Kangra earthquake is one of them. This study performed a plane...

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