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SHRIMP U-Pb and Sm-Nd ages of the Niquelândia layered complex: Meso- (1.25 Ga) and Neoproterozoic (0.79 Ga) extensional events in central Brazil

Date

Authors

Pimentel, Marcio

Ferreira, Cesar Fonseca Filho

Armstrong, Richard

Publisher

Elsevier

Abstract

The Niquelândia mafic-ultramafic layered complex, in the central part of the Brasília Belt, is one of three large complexes forming an approximately 350 km long linear NNE belt. The complexes are metamorphosed under granulite to amphibolite facies and h

Keywords

Keywords: lead; neodymium; samarium; uranium; extensional tectonics; geochronology; layered intrusion; Proterozoic; ultramafic rock; article; Brazil; complex formation; metamorphosis; molecular model; proterozoic; rock; volcano; Brazil; South America Mafic-ultramafic; Mesoproterozoic; Neoproterozoic; Niquelândia; Rift; SHRIMP U-Pb

URI

http://hdl.handle.net/1885/86777

Collections

ANU Research Publications

Source

Precambrian Research

Type

Journal article

DOI

10.1016/j.precamres.2004.02.009

Restricted until

2037-12-31

Downloads

File

Description

01_Pimentel_SHRIMP_U-Pb_and_Sm-Nd_ages_of_2004.pdf (944.18 KB)