URI | http://purl.tuc.gr/dl/dias/EB13BC5C-EC6C-4574-B043-B0AA2F11FEC9 | - |
Αναγνωριστικό | https://doi.org/10.1016/S0040-1951(01)00209-8 | - |
Γλώσσα | en | - |
Μέγεθος | 12 pages | en |
Τίτλος | Hercynian deformation and
metamorphism in the Cordillera Oriental
of southern Bolivia, central Andes | en |
Δημιουργός | Manoutsoglou Emmanouil | en |
Δημιουργός | Μανουτσογλου Εμμανουηλ | el |
Δημιουργός | Hans Ahrendt | en |
Δημιουργός | Volker Jacobshagen | en |
Δημιουργός | Joachim Muller | en |
Δημιουργός | Klaus Wemmer | en |
Εκδότης | Elsevier | en |
Περίληψη | In southern Bolivia the very thick Ordovician siliciclastic rocks of the Cordillera Oriental show folds and a slaty cleavage of
pre-Cretaceous age. These deformations had previously been attributed to either the late Ordovician Oclo´yic or to the late
Devonian to early Carboniferous Eohercynian (Chanic) orogenies. Now, we present K/Ar age determinations from phyllosilicates
of the Ordovician slates, which have been interpreted in relation to illite crystallinity data. High anchizonal to epizonal
metamorphism is indicated for most of the investigated samples. The majority of the samples have provided ages within the 320–
290 Ma interval (late Carboniferous to early Permian), indicating a late Hercynian orogeny. Traces of synchronous orogenic
processes are known from different parts of the Central Andes. This points to late Hercynian orogenic activities in that region.
| en |
Τύπος | Peer-Reviewed Journal Publication | en |
Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
Ημερομηνία | 2015-10-31 | - |
Ημερομηνία Δημοσίευσης | 2002 | - |
Θεματική Κατηγορία | Geology--Surveys | en |
Θεματική Κατηγορία | geological surveys | en |
Θεματική Κατηγορία | geology surveys | en |
Βιβλιογραφική Αναφορά | V. Jacobshagen, J. Müller , K. Wemmer ,H. Ahrendt , E. Manutsoglu ,"
Hercynian deformation and metamorphism in the Cordillera Oriental of southern Bolivia, central Andes,"Tecton.,vol. 345,no.1-4,pp.119-130,Feb. 2002.doi:10.1016/S0040-1951(01)00209-8 | en |