Results 21 to 30 of about 68,583 (146)

Petrologia e geocronologia (U/Pb-Sm/Nd) do Granito Passagem, Complexo Granitóide Pensamiento, SW do Cráton Amazônico (MT)

open access: yesRevista Brasileira de Geociências, 2010
Gisely Carmo de Jesus   +3 more
openaire   +3 more sources

Multiple fluid flow events from salt‐related rifting to basin inversion (Upper Pedraforca thrust sheet, SE Pyrenees)

open access: yesBasin Research, Volume 33, Issue 6, Page 3102-3136, December 2021., 2021
We reconstruct the fluid flow history of a portion of the inverted Pyrenean rift, the Upper Pedraforca thrust sheet, from the Mesozoic extension to the Alpine orogeny. The results reveal a heterogeneous fluid system, with increasing meteoric water influence during the Eocene‐Oligocene compression.
David Cruset   +6 more
wiley   +1 more source

Geoquímica y geocronología U-Pb de la cuarzodiorita de Sabanalarga y el gabro de Santa Fe, Colombia

open access: yes, 2021
Durante el Cretáceo Superior, el margen noroccidental de Suramérica se caracterizó por presentar un ambiente tectónico complejo, representado por la acreción de múltiples terrenos y la generación de varios eventos magmáticos.
Juan Pablo Zapata-Villada   +4 more
semanticscholar   +1 more source

Fluid Dynamics in a Thrust Fault Inferred from Petrology and Geochemistry of Calcite Veins: An Example from the Southern Pyrenees

open access: yesGeofluids, Volume 2020, Issue 1, 2020., 2020
Petrographic and geochemical analyses (δ18O, δ13C, 87Sr/86Sr, clumped isotopes, and elemental composition) coupled with field structural data of synkinematic calcite veins, fault rocks, and host rocks are used to reconstruct the episodic evolution of an outstanding exposed thrust zone in the Southern Pyrenees and to evaluate the fault behavior as a ...
Daniel Muñoz-López   +6 more
wiley   +1 more source

GEOCRONOLOGIA U-Pb (SHRIMP) E Sm-Nd DE XISTOS VERDES BASÁLTICOS DO ORÓGENO ARAÇUAÍ: IMPLICAÇÕES PARA A IDADE DO GRUPO MACAÚBAS

open access: yesRevista Brasileira de Geociências, 2005
MARLY BABINSKI   +5 more
openaire   +3 more sources

O Complexo Juiz de Fora na região de Três Rios (RJ): litogeoquímica, geocronologia U-Pb (LA-ICPMS) e geoquímica isotópica de Nd e Sr

open access: yesRevista Brasileira de Geociências, 2009
Jefferson Lima Fernandes André   +2 more
openaire   +3 more sources

The Lomagundi-Jatuli carbon isotopic event recorded in the marble of the Tandilia System basement, Río de la Plata Craton, Argentina [PDF]

open access: yes, 2019
The “Lomagundi-Jatuli event” corresponds to the most important δ13C positive anomaly (≥5‰) globally reported in Palaeoproterozoic marine carbonates (between ∼2.30 and 2.06 Ga).
Ballivian Justiniano, Carlos Alberto   +6 more
core   +1 more source

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