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THE SOURCE OF THE ESPINHAÇO DIAMONDS: EVIDENCES FROM SHRIMP U-PB ZIRCON AGES OF THE SOPA CONGLOMERATE AND PB-PB ZIRCON EVAPORATION AGES OF METAVOLCANIC ROCKSTHE SOURCE OF THE ESPINHAÇO DIAMONDS: EVIDENCES FROM SHRIMP U-PB ZIRCON AGES OF THE SOPA CONGLOMERATE AND PB-PB ZIRCON EVAPORATION AGES OF METAVOLCANIC ROCKS
(Sociedade Brasileira de Geologia, 2017)
The effect of chemical and physical imperfections in zircon grains in influencing the U-Pb age analyses: Insights from zircon fission track etching
(2019-12-15)
Understanding the chemical etching effects in the crystalline structure of zircon grains is crucial to know their chemical composition, morphology and isotopic geochemistry. After chemical etching, the zircon grain can be ...
Zircon fission track and U-Th-Pb in situ dating of Rio Parana Formation, Parana Basin, Brazil
(Soc Mexicana Fisica, 2010-02-01)
Ages of zircon from sedimentary samples of Rio Parana Formation, belonging of Bauru Group, north of Parana Basin, Brazil, has been determined by zircon Fission Track and U-Th-Pb in situ dating methods. The obtained ages ...
Geology and U-Pb detrital zircon geochronology coupled with zircon fission tracks of the Jauru formation of Parecis Basin, Brazil
(2021-01-01)
The Jauru Formation fills a symmetric NNW-trending graben whose basement is represented by Calymmian granitic intrusions and the paleoprotorezoic and mesoproterozoic metavolcanic sequence of the Jauru Terrane. The graben ...
Detrital-zircon U-Pb geochronology of the Quebrada del Carrizo Metamorphic Complex and El Jardin Schists and spatially-related granitoids of the Sierra Castillo Batholith
(Servicio Nacional Geología Minerva, 2015)
U-Pb detrital-zircon geochronology of two discrete outcrops of mica schists of the western border of the Domeyko Cordillera in the Region of Atacama, northern Chile, indicates that the maximum age of sedimentation of their ...
U-Pb dating by zircon dissolution method using chemical abrasion
(Academia Brasileira de Ciências, 2012)
Chemical abrasion was carried out on zircons grains of the Temora II standard for U-Pb dating prior to analyses using in situ Laser Ablation-MultiCollector Ion Coupled Plasma Mass Spectrometer (LA-ICPMS) followed by the ...
U/Pb ZIRCON AGES AND MODEL AGES (Sm/Nd) OF ORTHOGNEISSES AND METAMAFIC ENCLAVES OF THE BARRO VERMELHO AREA (PE), ALTO MOTOXÓ TERRAINE, BORBOREMA PROVINCE, NORTHEASTERN BRAZIL.IDADES U/Pb EM ZIRCÃO E IDADES MODELO (Sm/Nd) DE ORTOGNAISSES E ENCLAVES METAMÁFICOS DA ÁREA DE BARRO VERMELHO-PE, TERRENO ALTO MOXOTÓ, PROVÍNCIA BORBOREMA, NORDESTE DO BRASIL
(Sociedade Brasileira de Geologia, 2017)
Thermochronology and exhumation history of the basement and sediments of the NNE border of the Paraná basin, Brazil
(2020-04-01)
Combined zircon fission-track (FT) and U–Pb dating were used to obtain correlated cooling ages and tectonic processes in the eastern border of the Phanerozoic Paraná Basin, a large cratonic sedimentary basin in South America ...