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Zircon U-Pb ages and Hf isotopes for the Diablillos Intrusive Complex, Southern Puna, Argentina: Crustal evolution of the Lower Paleozoic Orogen, Southwestern Gondwana margin
(Pergamon-Elsevier Science Ltd, 2017-12)
The evolution of the rocks of the Lower Paleozoic Orogen in Puna, at the Southwestern Gondwana margin, has been widely debated. In particular, the scarce amount of geological and geochemical data available for the Diablillos ...
Early Permian to Late Triassic batholiths of the Chilean Frontal Cordillera (28°–31°S): SHRIMP U–Pb zircon ages and Lu–Hf and O isotope systematics
(Elsevier, 2014)
One of the major geological units of the Main Andean Range (Frontal Cordillera) of north–central Chile is a
group of composite and heterochronous late Paleozoic–early Mesozoic batholiths that extends for 500 km
roughly ...
Geodynamic controls on the contamination of Cenozoic arc magmas in the southern Central Andes: Insights from the O and Hf isotopic composition of zircon
(Elsevier, 2015-05)
Subduction zones, such as the Andean convergent margin of South America, are sites of active continental growth and crustal recycling. The composition of arc magmas, and therefore new continental crust, reflects variable ...
El Corredor Magmático Intracratónico permo-triásico de la provincia de La Pampa, Argentina: nuevas edades U-Pb SHRIMP, composición isotópica de hafnio e implicancias geodinámicasThe Permian-Triassic Intracratonic Magmatic Corridor of La Pampa province, Argentina: new U-Pb SHRIMP ages, Hf isotopic composition, and geodynamic implications
(Universidad Nacional Autónoma de México. Centro de Geociencias, 2019-03-27)
Se ha realizado un estudio y revisión de las unidades magmáticas que integran el Corredor Magmático Intracratónico PérmicoTriásico de La Pampa (CMPT-LP), centro-sur de Argentina. Se dan a conocer nuevas edades U-Pb SHRIMP, ...
Combined U–Pb and Lu–Hf isotope study from the Las Lozas volcanics, northwestern Argentina: Evidence of juvenile Cryogenian-derived, lower Pennsylvanian volcanism in western Gondwana
(Elsevier, 2015-04)
Las Lozas volcanic succession, cropping out in the southwestern Puna, Catamarca province, Argentina, consists of an intracontinental volcanic sequence of Carboniferous age. The lavic members are predominantly rhyolites, ...
Devonian magmatism in the accretionary complex of southern Chile
(Geological Society of London, 2016)
Supposed or potential Devonian igneous rocks in the accretionary complex of southern Chile were investigated using sensitive high-resolution ion microprobe U-Pb dating of zircon, with Hf- and O-isotope analyses of selected ...
The Gondwanan margin in West Antarctica: insights from Late Triassic magmatism of the Antarctic Peninsula
(Elsevier, 2020)
Triassic orthogneisses of the Antarctic Peninsula provide evidence for the Palaeozoic and Mesozoic geological evolution of southern Gondwana within Pangaea. These rocks are sporadically exposed in southeastern Graham Land ...
Time constraints on magmatism along the Major Gercino Shear Zone, southern Brazil: Implications for West Gondwana reconstruction
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
The Dom Feliciano Belt, situated in southernmost Brazil and Uruguay, contains a large mass of granite-gneissic rocks (also known as Florianopolis/Pelotas Batholith) formed during the pre-, syn- and post-orogenic phases of ...