Zircon U-Pb SHRIMP dating of a Neoproterozoic overprint in. This paper reports some SHRIMP U-Pb dating results for zircons from granitoids in the Songpan-Ganzi terrane. Zircon U-Pb SHRIMP dating of a Neoproterozoic overprint in Paleoproterozoic granitic-gneissic terranes, southern Brazil. Luiz Carlos da Silva, Léo Afraneo.
NOTE Mixing effects in zircon U–Pb ion microprobe dating - terrapub The dating results are as follows: (1) The granitoid intrusions occurred in the Late Triassic and Early Jurassic; (2) The earl-stage magmatism was nearly simultaneous with the folding of Triassic strata, suggesting that the magmatism mht have related with a large detachment under the Triassic strata; (3) Some of the crystal zircons contain rounded or unregular cores in shape, and it is thought that the rounded zircons were captured from the wall rocks during the upwelling of the granitic magma or detrital zircons from partial melting of the lower crust. Permian to Early Jurassic 257–192 Ma by sensitive hh- resolution ion microprobe SHRIMP zircon dating Yi et al. 2012. These plutons are partly intruded.
U-Pb SHRIMP Dating of Zircon from Quartz Veins. - Wiley Online Library Based on the SHRIMP dating, the core zircons yield ages of the Permian, early Paleozoic, late Paleozoic, and early Proterozoic, respectively. U-Pb SHRIMP Dating of Zircon from Quartz Veins of the Yangshan Gold Deposit in Gansu Province and Its Geological Snificance
Sensitive hh-resolution ion microprobe - pedia The present of Proterozoic detrital zircons indicate that the Songpan-Ganzi terrane is presumably floored with Precambrian basement rocks. The sensitive hh-resolution ion microprobe also sensitive hh mass-resolution ion microprobe or SHRIMP. In typical U-Pb zircon analysis.
SHRIMP U-Pb zircon dating of Pedras Grandes Suite, southern. There is an increasing evidence for the involvement of pre-Neoproterozoic zircons in the Arabian-Nubian Shield, a Neoproterozoic crustal tract that is generally regarded to be juvenile. EARTH SCIENCES. SHRIMP U-Pb zircon dating of Pedras Grandes Suite, southern Santa Catarina State, Brazil. Andréa R. JelinekI; Artur C. Bastos-NetoI;.
SHRIMP zircon dating and Sm/Nd isotopic investations of. The source and snificance of these xenocrystic zircons are not clear. The U–Pb SHRIMP dating of zircons revealed the ages of magmatic crystallization as well as. The zircon geochronology is complemented by Sm–Nd isotopic.