Geodynamic controls in the southernmost Northern Andes magmatic arc:Trace elements and Hf-O isotopic systematics in forearc detrital zircon

Autor: César Witt, Marc Poujol, Massimo Chiaradia, Diego Villagomez, Monique Seyler, Olivier Averbuch, Nordine Bouden

Publikováno v: Geological Society of America Bulletin
Geological Society of America Bulletin, 2023, 135 (7-8), pp.2141-2154. ⟨10.1130/B36510.1⟩

U-Pb dating of single detrital zircon grains by laser ablation−inductively coupled plasma−mass spectrometry (LA-ICP-MS) paired with Hf and O isotopic and trace-element analyses provide first-order indicators of the Late Cretaceous−Cenozoic evol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::888afd42868e5141be4c4a49ff6b8fe5
https://insu.hal.science/insu-03845056

Denudation of the Cordillera and intraplate belt in Central Patagonia inferred by detrital multi-dating of foreland basin deposits

Autor: Marie C. Genge, Massimiliano Zattin, César Witt, Alexis Derycke, Cécile Gautheron, Stefano Mazzoli, Maurizio Petrelli, Nathan Cogné, Delphine Bosch, Olivier Bruguier, Marcelo Marquez

Publikováno v: Sedimentary Geology
Sedimentary Geology, 2022, 440, pp.106237. ⟨10.1016/j.sedgeo.2022.106237⟩

International audience; The evolution of central Patagonia is associated with episodic shortening and extension that have greatly affected the topography of the Cordillera and intraplate belt. The San Jorge Basin is a site of sediment accumulation in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af0e73cb0a290618462b1613701a7ef3
https://insu.hal.science/insu-03765253/file/genge-2022.pdf

Late Cretaceous felsic intrusions in oceanic plateau basalts in SW Ecuador: Markers of subduction initiation?

Autor: Massimo Chiaradia, B. Omaña, M. Seyler, Marc Poujol, Diego Villagómez, César Witt, C. Durand

Publikováno v: Journal of South American Earth Sciences
Journal of South American Earth Sciences, 2021, 110, pp.103348. ⟨10.1016/j.jsames.2021.103348⟩
Journal of South American Earth Sciences, Elsevier, 2021, 110, pp.103348. ⟨10.1016/j.jsames.2021.103348⟩
Journal of South American Earth Sciences, Vol. 110, No 103348 (2021)

International audience; Felsic magmatic rocks (tonalites and trondhjemites) with calc-alkaline affinity were emplaced in SW Ecuador (Pascuales area; North Guayaquil) at ~87–89 Ma intruding the top of the basalts of the Caribean Large Igneous Provin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::547c7112c9c7a33bac74abce27b2155e
https://insu.hal.science/insu-03244185

Forearc crustal structure of Ecuador revealed by gravity and aeromagnetic anomalies and their geodynamic implications

Autor: D. Barba, Stale Johansen, César Witt, Carlos Aizprua, M. J. Hernandez, Marco Brönner

Publikováno v: Lithosphere
Lithosphere, 2020, 2020 (1), pp.2810692. ⟨10.2113/2020/2810692⟩
Lithosphere, Geological Society of America, 2020, 2020 (1), pp.2810692. ⟨10.2113/2020/2810692⟩

Along the Western Cordillera of Ecuador, fault-bounded ophiolites derived from the Late Cretaceous Caribbean Large Igneous Province (CLIP) have provided key petrotectonic indicators that outline the nature and the mechanism of continental growth in t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c217f02e147038d7bea733360398ba5d
https://hal.sorbonne-universite.fr/hal-03154115/document

Patagonian Foreland burial and exhumation during Mesozoic revealed by low temperature thermochronology: a response to mantle processes?

Autor: Alexis Derycke, Cécile Gautheron, Marie Genge, Massimiliano Zattin, Stefano Mazzoli, César Witt, Marcelo Marquez

During the last decade, the study of the south Patagonian Andes and Antarctic area have demonstrated the occurrence of a complex mantle setup during the pre-Atlantic opening (200-140 Ma) with the formation and disappearance of an anomalous flat slab

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9e732c94134836c974922700728d30ce
https://doi.org/10.5194/egusphere-egu2020-3618