نتایج جستجو برای: nappe

تعداد نتایج: 544  

Journal: :Geosphere 2022

Abstract This paper provides an understanding of the sedimentary-tectonic evolution Cenozoic strata El Habt and Ouezzane Tectonic Units (Intrarif, External Rif) in Morocco. New data provide information about depositional architecture enable a correlation Rif Morocco with that Betic Cordillera Spain Tunisian Tell, which new insights for hydrocarbon exploration region regarding possible source, r...

Journal: :Terra Nova 2021

We describe a singular structure in Upper Cretaceous rocks of the Eaux-Chaudes massif western Pyrenees, consisting kilometre-scale fold nappe with sheared overturned limb. High ductile strain attests deformation style rarely reported for alpine and peak temperature carbonates is estimated by Raman spectroscopy carbonaceous material palaeothermometry lower greenschist facies (>300°C). The normal...

Journal: :Journal of Metamorphic Geology 2021

The collision of Baltica and Laurentia during the Caledonian Orogeny happened at c. 400–420 Ma. However, subduction processes also took place before this main collisional phase tectonic history these is still not fully resolved. Seve Nappe Complex in Sweden has recorded earlier phases. Norrbotten (North Swedish Caledonides) comprises four superimposed nappes emplaced by eastward thrusting (from...

Journal: :International Journal of Earth Sciences 2021

Abstract The Late Palaeozoic–Early Mesozoic Tethyan development of the Eastern Mediterranean region remains debatable, especially in Turkey, where alternative northward and southward subduction hypotheses are proposed. Relevant to this debate, new whole-rock geochemical data provided here for early Carboniferous (Late Tournaisian-Late Visean; c. 340–350 Ma) tuffaceous sedimentary rocks within Ç...

Journal: :Acta Geologica Polonica 2023

During the late Oligocene to early Miocene residual Magura Basin was located along front of Pieniny Klippen Belt (PKB). This basin supplied with clastic material derived from a south-eastern direction. In Male (Little) Mts. in Poland, Oligocene/ Kremna Fm. Nappe (Krynica subunit) occurs both PKB as well tectonic windows within PKB. Lenses exotic conglomerates contain frequent clasts Mesozoic li...

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