Results 41 to 48 of about 200 (48)

Resúmenes cortos presentados en el Congreso Internacional sobre el Ediacárico y el tránsito Ediacárico-Cámbrico (Guadalupe, Extremadura, España, 17 al 24 de Octubre de 2019)

open access: yesEstudios Geologicos, 2019
El siguiente documento recopila los resúmenes cortos presentados en el IMECT (International Meeting on the Ediacaran System and the Ediacaran-Cambrian Transition), celebrado del 17 al 24 de octubre de 2019 en Guadalupe (Geoparque Villuercas-Ibores-Jara).
J. J. Álvaro, S. Jensen
doaj  

Comparación entre poblaciones de circones detríticos de rocas ordovícicas del Pirineo y de otros terrenos perigondwánicos: implicaciones paleogeográficas [PDF]

open access: yes, 2016
The first LA-ICP-MS U-Pb detrital zircon ages from quartzites located in the Ordovician rocks from the Central Pyrenees (the Rabassa Dome, Andorra) were investigated. The four studied samples present very similar U-Pb age patterns.
Casas Tuset, Josep María   +4 more
core   +1 more source

Middle to late ediacaran magnetostratigraphy of the Avellaneda Formation, Rio de La Plata Craton [PDF]

open access: yes, 2019
The Avellaneda Formation represents an opportunity to access magnetic field information of the middle to late Ediacaran world, a critical period for the Earth.
Afonso, Jhon   +5 more
core  

Sulfur cycle imbalance and environmental change during the Ediacaran Period = Desequilibrio del ciclo del azufre y cambio ambiental durante el Período Ediacárico [PDF]

open access: yes, 2019
A different approach is proposed here to solve the problem of negative δ13C excursions during the Ediacaran, by viewing them in terms of a linked carbon-sulfur-oxygen system, whereby changes in oxidant dynamics caused an excess of organic carbon ...
Mills, BJW, Shields, GA
core  

Murero y la explosión del Cámbrico: controversias acerca de este acontecimiento. [PDF]

open access: yes, 2010
Andrés, José Antonio   +8 more
core  

Processos de reciclagem crustal e interação crusta-manto inferidos através da composição isotópica de oxigénio em zircão de rochas do Sudoeste da Ibéria [PDF]

open access: yes, 2015
Armstrong, R. A.   +7 more
core  

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