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Mostrando ítems 71-80 de 199
Paleoenvironmental reconstruction of the coastal Monte León and Santa Cruz formations (Early Miocene) at Rincon del Buque, Southern Patagonia: a revisited locality
(Elsevier, 2015-03)
Sedimentological, ichnological and paleontological analyses of the Early Miocene uppermost Monte León Formation and the lower part of the Santa Cruz Formation were carried out in Rincón del Buque (RDB), a fossiliferous ...
Neogene Mafic Magmatism in the Northern Puna Plateau, Argentina: Generation and Evolution of a Back-arc Volcanic Suite
(Oxford University Press, 2017-08)
Neogene back-arc mafic volcanism in the northern Puna Plateau produced a suite of mainly high-Mg, calc-alkaline, basaltic andesites to andesites that form small scoria cones and lava fields. We present the first comprehensive ...
A controversial unit within the Argentine neogene: The "irenean" fauna
(Asociacion Paleontologica Argentina, 2017-12)
El “Irenense” es una unidad controvertida, tradicionalmente empleada para incluir vertebrados fósiles y sus sedimentos portadores del Neógeno Tardío—Plioceno en sentido amplio—en el sur de la provincia de Buenos Aires, ...
Relaciones paleofloristicas del mioceno-plioceno del norte argentinoMiocene-Pliocene paleofloristic relations of northern Argentina
(Asociación Paleontológica Argentina, 2016-02)
Los objetivos de este trabajo son relacionar las paleofloras del Mioceno–Plioceno del norte de la Argentina que caracterizan a cada formación y a cada período, comparar las registradas en el noroeste con las del nordeste ...
The Pan-Amazonian Ucayali Peneplain, late Neogene sedimentation in Amazonia, and the birth of the modern Amazon River system
(ElsevierNL, 2006-09)
We review the Neogene geologic history of lowland Amazonia in an attempt to focus attention on areas of agreement, as well as areas in dispute, in this research arena. We reinterpret pre-existing hypotheses, present new ...
Systematics and evolutionary history of butterflies in the 'Taygetis clade' (Nymphalidae: Satyrinae: Euptychiina): Towards a better understanding of Neotropical biogeography
(Academic Press Inc Elsevier ScienceSan DiegoEUA, 2013)
Long-term denudation rates from the Central Andes (Chile) estimated from a Digital Elevation Model using the Black Top Hat function and Inverse Distance Weighting: implications for the Neogene climate of the Atacama Desert
(Servicio Nacional de Geología y Minería (SERNAGEOMIN), 2008)
Recognition of Cretaceous, Paleocene, and Neogene tectonic reactivation through apatite fission-track analysis in Precambrian areas of southeast Brazil: association with the opening of the south Atlantic Ocean
(Pergamon-elsevier Science LtdOxfordInglaterra, 2003)
Recognition of Cretaceous, Paleocene, and Neogene tectonic reactivation through apatite fission-track analysis in Precambrian areas of southeast Brazil: Association with the opening of the south Atlantic Ocean
(2003-01-01)
Apatite fission-track analysis was used for the determination of thermal histories and ages in Precambrian areas of southeast Brazil. Together with geological and geomorphologic information, these ages enable us to quantify ...
Combined dating of goethites and kaolinites from ferruginous duricrusts. Deciphering the Late Neogene erosion history of Central Amazonia
(2018-02-20)
This study focuses on the dating of millimetric pisoliths from ferruginous duricrusts located in central Amazonia (Brazil), by coupling detailed mineralogy and two relevant dating methods: (i) (U-Th)/He analysis of goethites ...