Sm-Nd and U-Pb Zircon Isotopic Constraints On the Provenance of Sediments From the Amadeus Basin, Central Australia - Evidence for Ree Fractionation

Zhao, JX, McCulloch, MT and Bennett, VC (1992). Sm-Nd and U-Pb Zircon Isotopic Constraints On the Provenance of Sediments From the Amadeus Basin, Central Australia - Evidence for Ree Fractionation. In: Geochimica Et Cosmochimica Acta. Taylor Colloquium On Origin and Evolution of Planetary Crusts, Celebrating Stuart Ross Taylors 65th Birthday and His Retirement From the Research School of Earth Science, Canberra Australia, (921-940). Oct 01-02, 1990. doi:10.1016/0016-7037(92)90037-J


Author Zhao, JX
McCulloch, MT
Bennett, VC
Title of paper Sm-Nd and U-Pb Zircon Isotopic Constraints On the Provenance of Sediments From the Amadeus Basin, Central Australia - Evidence for Ree Fractionation
Conference name Taylor Colloquium On Origin and Evolution of Planetary Crusts, Celebrating Stuart Ross Taylors 65th Birthday and His Retirement From the Research School of Earth Science
Conference location Canberra Australia
Conference dates Oct 01-02, 1990
Proceedings title Geochimica Et Cosmochimica Acta   Check publisher's open access policy
Journal name Geochimica Et Cosmochimica Acta   Check publisher's open access policy
Place of Publication OXFORD
Publisher PERGAMON-ELSEVIER SCIENCE LTD
Publication Year 1992
Year available 1992
Sub-type Fully published paper
DOI 10.1016/0016-7037(92)90037-J
Open Access Status Not yet assessed
ISSN 0016-7037
Volume 56
Issue 3
Start page 921
End page 940
Total pages 20
Language eng
Abstract/Summary The Amadeus Basin of central Australia is a Late Proterozoic to Late Palaeozoic ensialic depositional basin located between two Proterozoic basement blocks of different Nd crustal formation ages, the older Arunta Block (T(DM)Nd = 2.0 to 2.2 Ga, U-Pb zircon ages = 1.5-1.9 Ga) to the north and the younger Musgrave Block (T(DM)Nd = 1.7 to 1.9 Ga, U-Pb zircon ages = 1.0-1.7 Ga) to the south. Initial Nd isotopic compositions of the Amadeus Basin sediments generally fall into the region defined by the evolutionary trajectories of these two basement blocks, indicating that the sediments are dominated by essentially two source components: the older Arunta Block [Sm-147/Nd-144 almost-equal-to 0.114 and epsilon(Nd)(0) almost-equal-to -20.4] and younger Musgrave Block [Sm-147/Nd-144 almost-equal-to 0.118 and epsilon(Nd)(0) almost-equal-to -14.7] and/or their equivalents. Stratigraphically higher sediments plot more closely to the evolutionary trajectory of the Musgrave Block. This result, together with the average provenance ages, indicates the proportion of material from the Musgrave Block increases as the sediments become younger. The Sm-Nd isotopic data preclude a substantial involvement of Archaean sources.
Keyword Continental-Crust
Southwestern Australia
Tectonic Evolution
Geological Time
Sr-Isotopes
Rocks
Systematics
Elements
Growth
Shales
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Conference Paper
Sub-type: Fully published paper
Collection: ResearcherID Downloads - Archived
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 92 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 94 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Sat, 10 Sep 2011, 06:52:56 EST by System User