Ordovician marginal basin evolution near the palaeo-Pacific east Gondwana margin, Australia

doi:10.1144/jgs2012-034

	Ordovician marginal basin evolution near the palaeo-Pacific east Gondwana margin, Australia
	Quinn, C. D.1; Percival, I. G.2; Glen, R. A.1,3; Xiao, W. -J.4
刊名	JOURNAL OF THE GEOLOGICAL SOCIETY
	2014-09-01
卷号	171 期号:5 页码:723-736
ISSN号	0016-7649
DOI	10.1144/jgs2012-034
文献子类	Article
英文摘要	Although the Ordovician Macquarie Arc, part of the eastern Lachlan Orogen of southeastern Australia, has long been considered to be an intra-oceanic arc within an accretionary orogen, key characteristics contrast with more typical examples of accreted arcs. Significantly, multiple stacked phases of mafic to intermediate volcanic rocks, with suprasubduction-zone chemistry, are flanked to the east and west by extensive, coeval continental margin turbidite, chert and black shale sequences. By analysing stratigraphic and contact relationships within and between the volcanic rocks, ophiolitic components (sensu lato) and turbidite sequences, constrained by precise biostratigraphy, we document a repeated cycle of uplift, upper-plate extension and collapse common to all sequences. This cycle is interpreted as resulting from localized extension (rifting or hyper-extension and lower-crustal delamination) within a continent-margin sequence developed upon an already established marginal or back-arc basin of probable middle to late Cambrian age. Our interpretation provides a counter-example to prevailing arc accretion models by inferring extensional tectonics at the palaeo-Pacific east Gondwana margin during the Ordovician with development of alkalic and calc-alkalic Cu-Au porphyry deposits away from an active arc system.
WOS关键词	NEW-SOUTH-WALES ; LACHLAN FOLD BELT ; NORTHERN VICTORIA LAND ; POOR RIFTED MARGINS ; MID-ATLANTIC RIDGE ; ZIRCON U-PB ; MACQUARIE ARC ; SOUTHEASTERN AUSTRALIA ; TECTONIC EVOLUTION ; ACCRETIONARY COMPLEX
WOS研究方向	Geology
语种	英语
出版者	GEOLOGICAL SOC PUBL HOUSE
WOS记录号	WOS:000341822100011
资助机构	Chinese National Basic Research 973 Program(2007CB411307) ; Chinese National Basic Research 973 Program(2007CB411307) ; National Natural Science Foundation of China(40725009 ; National Natural Science Foundation of China(40725009 ; 41230207 ; 41230207 ; 41390441) ; 41390441) ; Chinese National Basic Research 973 Program(2007CB411307) ; Chinese National Basic Research 973 Program(2007CB411307) ; National Natural Science Foundation of China(40725009 ; National Natural Science Foundation of China(40725009 ; 41230207 ; 41230207 ; 41390441) ; 41390441) ; Chinese National Basic Research 973 Program(2007CB411307) ; Chinese National Basic Research 973 Program(2007CB411307) ; National Natural Science Foundation of China(40725009 ; National Natural Science Foundation of China(40725009 ; 41230207 ; 41230207 ; 41390441) ; 41390441) ; Chinese National Basic Research 973 Program(2007CB411307) ; Chinese National Basic Research 973 Program(2007CB411307) ; National Natural Science Foundation of China(40725009 ; National Natural Science Foundation of China(40725009 ; 41230207 ; 41230207 ; 41390441) ; 41390441)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/86466]
专题	中国科学院地质与地球物理研究所
通讯作者	Quinn, C. D.
作者单位	1.Geol Survey New South Wales, NSW Trade & Investment, Hunter Region Mail Ctr, NSW 2310, Australia 2.Geol Survey New South Wales, NSW Trade & Investment, WB Clarke Geosci Ctr, Londonderry, NSW 2753, Australia 3.Macquarie Univ, Dept Earth & Planetary Sci, GEMOC, Australian Res Council Ctr Excellence Core Crust, Sydney, NSW 2109, Australia 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Quinn, C. D.,Percival, I. G.,Glen, R. A.,et al. Ordovician marginal basin evolution near the palaeo-Pacific east Gondwana margin, Australia[J]. JOURNAL OF THE GEOLOGICAL SOCIETY,2014,171(5):723-736.
APA	Quinn, C. D.,Percival, I. G.,Glen, R. A.,&Xiao, W. -J..(2014).Ordovician marginal basin evolution near the palaeo-Pacific east Gondwana margin, Australia.JOURNAL OF THE GEOLOGICAL SOCIETY,171(5),723-736.
MLA	Quinn, C. D.,et al."Ordovician marginal basin evolution near the palaeo-Pacific east Gondwana margin, Australia".JOURNAL OF THE GEOLOGICAL SOCIETY 171.5(2014):723-736.