The birth of the Alps: Ediacaran to Paleozoic accretionary processes and crustal growth along the northern Gondwana margin

dc.creatorSiegesmund, Siegfried
dc.creatorOriolo, Sebastián
dc.creatorSchulz, Bernhard
dc.creatorHeinrichs, T.
dc.creatorBasei, M. A. S.
dc.creatorLammerer, Bernd
dc.date2021-05-10
dc.date.accessioned2023-08-31T00:36:27Z
dc.date.available2023-08-31T00:36:27Z
dc.identifierhttp://hdl.handle.net/11336/175547
dc.identifierSiegesmund, Siegfried; Oriolo, Sebastián; Schulz, Bernhard; Heinrichs, T.; Basei, M. A. S.; et al.; The birth of the Alps: Ediacaran to Paleozoic accretionary processes and crustal growth along the northern Gondwana margin; Springer; International Journal of Earth Sciences; 110; 4; 10-5-2021; 1321-1348
dc.identifier1437-3254
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8543601
dc.descriptionNew whole-rock geochemical and coupled U–Pb and Lu–Hf LA-ICP-MS zircon data of metasedimentary rocks of the Austroalpine, South Alpine and Penninic basement domains are presented, to disentangle the pre-Variscan tectonic evolution of the proto-Alps. The studied units seem to record distinct stages of protracted Late Ediacaran to Carboniferous tectonosedimentary processes prior to the Variscan collision. In the case of Austroalpine and South Alpine units, nevertheless, no major differences in terms of provenance are observed, since most detrital zircon samples are characterized by a major Pan-African peak. Their detrital zircon spectra record a provenance from the northeastern Saharan Metacraton and the Sinai basement at the northern Arabian-Nubian Shield, being thus located along the eastern Early Paleozoic northern Gondwana margin, whereas sources located further west are inferred for the Penninic Unit, which might have been placed close to the Moldanubian Unit of the Bohemian Massif. In any case, it is thus clear that the Alpine basement remained in a close position to the Gondwana mainland at least during the Early Paleozoic. The Late Ediacaran to Silurian tectonic evolution, which includes Cadomian and Cenerian tectonometamorphic and magmatic processes, seem thus to record a continuum related to a retreating-mode accretionary orogen, with diachronous back-arc basin opening and possibly discrete compressional/transpressional pulses linked to changes in subduction zone dynamics. On the other hand, it is inferred that the Alpine basement essentially comprises Pan-African metasedimentary and subordinate metaigneous rocks, possibly with very few Early Neoproterozoic relics. This basement was significantly reworked during the protracted Paleozoic orogenic evolution, due to anatexis and/or assimilation by mantle-derived juvenile magmatism.
dc.descriptionFil: Siegesmund, Siegfried. Universität Göttingen; Alemania
dc.descriptionFil: Oriolo, Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Geociencias Básicas, Aplicadas y Ambientales de Buenos Aires; Argentina
dc.descriptionFil: Schulz, Bernhard. Technische Universitat Bergakademie Freiberg; Alemania
dc.descriptionFil: Heinrichs, T.. Universität Göttingen; Alemania
dc.descriptionFil: Basei, M. A. S.. Universidade de Sao Paulo; Brasil
dc.descriptionFil: Lammerer, Bernd. Ludwig Maximilians Universitat; Alemania
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherSpringer
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1007/s00531-021-02019-7
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s00531-021-02019-7
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttps://creativecommons.org/licenses/by/2.5/ar/
dc.subjectALPINE BASEMENT
dc.subjectCADOMIAN OROGENY
dc.subjectCENERIAN OROGENY
dc.subjectDETRITAL ZIRCONS
dc.subjectRETREATING-MODE ACCRETIONARY OROGEN
dc.subjectSEDIMENTARY PROVENANCE
dc.subjecthttps://purl.org/becyt/ford/1.5
dc.subjecthttps://purl.org/becyt/ford/1
dc.titleThe birth of the Alps: Ediacaran to Paleozoic accretionary processes and crustal growth along the northern Gondwana margin
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


Este ítem pertenece a la siguiente institución