000111624 001__ 111624
000111624 005__ 20230519145453.0
000111624 0247_ $$2doi$$a10.1016/j.gloplacha.2021.103677
000111624 0248_ $$2sideral$$a126016
000111624 037__ $$aART-2021-126016
000111624 041__ $$aeng
000111624 100__ $$aLloret, J.
000111624 245__ $$aTransition between Variscan and Alpine cycles in the Pyrenean-Cantabrian Mountains (N Spain): Geodynamic evolution of near-equator European Permian basins
000111624 260__ $$c2021
000111624 5060_ $$aAccess copy available to the general public$$fUnrestricted
000111624 5203_ $$aIn the northern Iberian Peninsula, the Pyrenean-Cantabrian orogenic belt extends E-W for ca. 1000 km between the Atlantic Ocean and Mediterranean Sea. This orogen developed from the collision between Iberia and Eurasia, mainly in Cenozoic times. Lower-middle Permian sediments crop out in small, elongated basins traditionally considered independent from each other due to misinterpretations on incomplete lithostratigraphic data and scarce radiometric ages. Here, we integrate detailed stratigraphic, sedimentary, tectonic, paleosol and magmatic data from well-dated lithostratigraphic units. Our data reveal a similar geodynamic evolution across the Pyrenean-Cantabrian Ranges at the end of the Variscan cycle. Lower-middle Permian basins started their development under an extensional regime related to the end of the Variscan Belt collapse, which stars in late Carboniferous times in the Variscan hinterland. This orogenic collapse transitioned to Pangea breakup at the middle Permian times in the study region. Sedimentation occurred as three main tectono-sedimentary extensional phases. A first phase (Asselian-Sakmarian), which may have even started at the end of the Carboniferous (Gzhelian) in some sections, is mainly represented by alluvial sedimentation associated with calc-alkaline magmatism. A second stage (late Artinskian-early Kungurian), represented by al-luvial, lacustrine and palustrine sediments with intercalations of calc-alkaline volcanic beds, shows a clear up-ward aridification trend probably related to the late Paleozoic icehouse-greenhouse transition. The third and final stage (Wordian-Capitanian) comprised of alluvial deposits with intercalations of alkaline and mafic beds, rarely deposited in the Cantabrian Mountains, and underwent significant pre-and Early Mesozoic erosion in some segments of the Pyrenees. This third stage can be related to a transition towards the Pangea Supercontinent breakup, not generalized until the Early/Middle Triassic at this latitude because the extensional process stopped about 10 Myr (Pyrenees) to 30 Myr (Cantabrian Mountains). When compared to other well-dated basins near the paleoequator, the tectono-sedimentary and climate evolution of lower-middle Permian basins in Western and Central Europe shows common features. Specifically, we identify coeval periods with magmatic activity, extensional tectonics, high subsidence rates and thick sedi-mentary record, as well as prolonged periods without sedimentation. This comparison also identifies some evolutionary differences between Permian basins that could be related to distinct locations in the hinterland or foreland of the Variscan orogen. Our data provide a better understanding of the major crustal re-equilibration and reorganization that took place near the equator in Western-Central Europe during the post-Variscan period.
000111624 536__ $$9info:eu-repo/grantAgreement/ES/MCIU/CGL2015-70970-P$$9info:eu-repo/grantAgreement/ES/MICINN/PGC2018-098272-B-I00
000111624 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000111624 590__ $$a4.956$$b2021
000111624 592__ $$a1.371$$b2021
000111624 594__ $$a7.9$$b2021
000111624 591__ $$aGEOSCIENCES, MULTIDISCIPLINARY$$b36 / 203 = 0.177$$c2021$$dQ1$$eT1
000111624 593__ $$aOceanography$$c2021$$dQ1
000111624 591__ $$aGEOGRAPHY, PHYSICAL$$b8 / 50 = 0.16$$c2021$$dQ1$$eT1
000111624 593__ $$aGlobal and Planetary Change$$c2021$$dQ1
000111624 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000111624 700__ $$aLopez-Gomez, J.
000111624 700__ $$aHeredia, N.
000111624 700__ $$aMartin-Gonzalez, F.
000111624 700__ $$aDe la Horra, R.
000111624 700__ $$aBorruel-Abadia, V.
000111624 700__ $$aRonchi, A.
000111624 700__ $$aBarrenechea, J.F.
000111624 700__ $$aGarcia-Sansegundo, J.
000111624 700__ $$0(orcid)0000-0002-2745-0357$$aGale, C.
000111624 700__ $$aUbide, T.
000111624 700__ $$aGretter, N.
000111624 700__ $$aDiez, J.B.
000111624 700__ $$aJuncal, M.
000111624 700__ $$aLago, M.
000111624 773__ $$g207 (2021), 103677 [25 pp.]$$pGlob. planet. change$$tGLOBAL AND PLANETARY CHANGE$$x0921-8181
000111624 8564_ $$s3021756$$uhttps://zaguan.unizar.es/record/111624/files/texto_completo.pdf$$yVersión publicada
000111624 8564_ $$s2262802$$uhttps://zaguan.unizar.es/record/111624/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000111624 909CO $$ooai:zaguan.unizar.es:111624$$particulos$$pdriver
000111624 951__ $$a2023-05-18-14:47:33
000111624 980__ $$aARTICLE