Footprint of a large intracontinental rifting event: Coupled detrital zircon geochronology and geochemistry from the Mesoproterozoic Collier Basin, Western Australia
MetadataShow full item record
Intracontinental rifting of the Capricorn Orogen was accompanied by the emplacement of mafic intrusions at c. 1080 Ma, contemporaneous with deposition of siliciclastic and volcanoclastic sediment in the late Mesoproterozoic Collier Basin. In this work we investigate the provenance of the Collier Basin sediment with U-Pb and trace elements data for detrital zircons. Visual inspection of age data signature and statistical Kolmogorov-Smirnov similarity test integrated with trace element analysis of detrital zircon suggest that the Collier Basin contains two distinct sequences, in terms of sedimentary provenance and depositional history. The basal units of the Collier Basin were deposited in a deltaic setting, and are dominated by early to middle Palaeoproterozoic detrital zircon ages matching older sedimentary rocks on the south margin of the Pilbara Craton (Ashburton and Capricorn Groups), and underlying Mesoproterozoic sedimentary sequences in the central Capricorn Orogen (Edmund Basin). The topmost sequence of the Collier Basin contains unimodal late Mesoproterozoic detrital zircon populations (1300–1100 Ma) interpreted to be associated with the Musgrave Province from central Australia, ~1000 km distant. The sediment transport of the topmost unit occurred via marine conduit in a rift environment, with its axis elongated from southeast to northwest. The data indicate that rifting within the Capricorn Orogen is linked with the 1090–1040 Ma intracontinental Ngaanyatjarra Rift of central Australia, which is interpreted to have facilitated dispersal of Musgrave Province detritus between Western Australia and central Australia.
Showing items related by title, author, creator and subject.
Tectonic controls on sediment provenance evolution in rift basins: Detrital zircon U–Pb and Hf isotope analysis from the Perth Basin, Western AustraliaOlierook, Hugo; Barham, Milo; Fitzsimons, Ian; Timms, Nicholas Eric; Jiang, Qiang; Evans, Noreen; McDonald, Bradley (2019)© 2018 The role of tectonics in controlling temporal and spatial variations in sediment provenance during the evolution of extensional basins from initial rifting to continental breakup and passive margin development are ...
Tracking sediment dispersal during orogenesis: A zircon age and Hf isotope study from the western Amadeus Basin, AustraliaHaines, P.; Kirkland, Chris; Wingate, M.; Allen, H.; Belousova, E.; Gréau, Y. (2015)© 2015. The c. 570-530. Ma intraplate Petermann Orogeny of central Australia involved high temperature and pressure metamorphism, deformation, and uplift of the Mesoproterozoic Musgrave region and associated components ...
Visualizing the sedimentary response through the orogenic cycle: a multi-dimensional scaling approachSpencer, Christopher; Kirkland, C. (2016)Changing patterns in detrital provenance through time have the ability to resolve salient features of an orogenic cycle. Such changes in the age spectrum of detrital minerals may be attributable to fluctuations in the ...