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- W2023179220 endingPage "337" @default.
- W2023179220 startingPage "318" @default.
- W2023179220 abstract "The Curnamona Province Paleoproterozoic Willyama Supergroup was deposited in one of a series of basins developed along the eastern margin of the Proterozoic Australian continent. Linked tectonic evolutionary paths have previously been drawn between the northern and southern Australian cratons, based in part on similar depositional ages and stratigraphy, and tectonic evolutions of the sedimentary basins of this region. Detailed geochemical and Nd isotopic analyses from the Paleoproterozoic Willyama Supergroup suggest an intracratonic source for the lower parts of the sequence, with introduction of a significantly more juvenile source region for the ca. ≤1650 Ma uppermost part, marking a significant change in tectonic regime. The geochemical and Nd isotopic signature of both mature quartz-rich and pelitic sedimentary rocks of the lower part of the Willyama Supergroup support a dominant intracratonic central and northern Australian provenance, marked by a recycled and felsic upper crustal composition unusually enriched in REE and incompatible elements. Sedimentary REE abundance patterns double those of the Post-Archean Australian Shale average. Initial ɛNd values between −7 and −4 suggest old upper crustal recycled source basement. In contrast, the uppermost part of the Willyama sedimentary section has REE patterns much more like Post-Archean upper crustal shale average, and is characterised by more primitive initial ɛNd values of around −3 to 0. Significant ca. 1650 Ma felsic source terranes with such a juvenile Nd isotope signature are unknown in Australia. The data suggest proximity of a relatively juvenile as yet unidentified source to the present-day east of the basin. Some pre-Rodinian reconstruction models place eastern Australia proximal to southwestern Laurentia, which contains rocks of appropriate geochemical and isotopic signatures and could have delivered juvenile felsic sediment into the Willyama basin." @default.
- W2023179220 created "2016-06-24" @default.
- W2023179220 creator A5017564164 @default.
- W2023179220 creator A5032161414 @default.
- W2023179220 date "2008-10-01" @default.
- W2023179220 modified "2023-09-26" @default.
- W2023179220 title "Tectonic setting and provenance of the Paleoproterozoic Willyama Supergroup, Curnamona Province, Australia: Geochemical and Nd isotopic constraints on contrasting source terrain components" @default.
- W2023179220 cites W1590506373 @default.
- W2023179220 cites W1928566219 @default.
- W2023179220 cites W1944113931 @default.
- W2023179220 cites W1971398816 @default.
- W2023179220 cites W1973016824 @default.
- W2023179220 cites W1974716888 @default.
- W2023179220 cites W1978601976 @default.
- W2023179220 cites W1984616853 @default.
- W2023179220 cites W1985620741 @default.
- W2023179220 cites W1985661185 @default.
- W2023179220 cites W1987869877 @default.
- W2023179220 cites W1990232650 @default.
- W2023179220 cites W1991946360 @default.
- W2023179220 cites W1993463767 @default.
- W2023179220 cites W1993820127 @default.
- W2023179220 cites W1996449743 @default.
- W2023179220 cites W1996780869 @default.
- W2023179220 cites W1996905004 @default.
- W2023179220 cites W1997543102 @default.
- W2023179220 cites W2003758425 @default.
- W2023179220 cites W2004555211 @default.
- W2023179220 cites W2007581769 @default.
- W2023179220 cites W2008637847 @default.
- W2023179220 cites W2009466418 @default.
- W2023179220 cites W2009805159 @default.
- W2023179220 cites W2014555936 @default.
- W2023179220 cites W2016161178 @default.
- W2023179220 cites W2016844673 @default.
- W2023179220 cites W2017214298 @default.
- W2023179220 cites W2018695532 @default.
- W2023179220 cites W2019392649 @default.
- W2023179220 cites W2021498359 @default.
- W2023179220 cites W2021773647 @default.
- W2023179220 cites W2022391288 @default.
- W2023179220 cites W2026147805 @default.
- W2023179220 cites W2027045658 @default.
- W2023179220 cites W2028071342 @default.
- W2023179220 cites W2028436359 @default.
- W2023179220 cites W2033244962 @default.
- W2023179220 cites W2035341192 @default.
- W2023179220 cites W2035409563 @default.
- W2023179220 cites W2036125550 @default.
- W2023179220 cites W2036765668 @default.
- W2023179220 cites W2038150711 @default.
- W2023179220 cites W2038571209 @default.
- W2023179220 cites W2040278389 @default.
- W2023179220 cites W2047364329 @default.
- W2023179220 cites W2048230691 @default.
- W2023179220 cites W2051750046 @default.
- W2023179220 cites W2053062846 @default.
- W2023179220 cites W2053913791 @default.
- W2023179220 cites W2054419752 @default.
- W2023179220 cites W2054561136 @default.
- W2023179220 cites W2057355326 @default.
- W2023179220 cites W2057513651 @default.
- W2023179220 cites W2060313404 @default.
- W2023179220 cites W2060671631 @default.
- W2023179220 cites W2064485941 @default.
- W2023179220 cites W2066534219 @default.
- W2023179220 cites W2066949914 @default.
- W2023179220 cites W2071816508 @default.
- W2023179220 cites W2073426602 @default.
- W2023179220 cites W2073492500 @default.
- W2023179220 cites W2078723009 @default.
- W2023179220 cites W2079088434 @default.
- W2023179220 cites W2080927591 @default.
- W2023179220 cites W2086537983 @default.
- W2023179220 cites W2087937118 @default.
- W2023179220 cites W2090020014 @default.
- W2023179220 cites W2092796942 @default.
- W2023179220 cites W2092949606 @default.
- W2023179220 cites W2093505723 @default.
- W2023179220 cites W2094208548 @default.
- W2023179220 cites W2098235917 @default.
- W2023179220 cites W2102832616 @default.
- W2023179220 cites W2105697521 @default.
- W2023179220 cites W2108538927 @default.
- W2023179220 cites W2124915259 @default.
- W2023179220 cites W2134432981 @default.
- W2023179220 cites W2137522538 @default.
- W2023179220 cites W2139144132 @default.
- W2023179220 cites W2143470322 @default.
- W2023179220 cites W2144531676 @default.
- W2023179220 cites W2147127632 @default.
- W2023179220 cites W2151122417 @default.
- W2023179220 cites W2155440049 @default.
- W2023179220 cites W2157446450 @default.
- W2023179220 cites W2161090395 @default.
- W2023179220 cites W2162868035 @default.
- W2023179220 cites W2163661859 @default.
- W2023179220 cites W2166969158 @default.