Paleomagnetic data from the New England Orogen (eastern Australia) and implications for oroclinal bending

被引:28
作者
Shaanan, Uri [1 ]
Rosenbaum, Gideon [1 ]
Pisarevsky, Sergei [2 ,3 ]
Speranza, Fabio [4 ]
机构
[1] Univ Queensland, Sch Earth Sci, Brisbane, Qld, Australia
[2] Univ Western Australia, Sch Earth & Environm, Crawley, WA, Australia
[3] Curtin Univ Technol, Dept Appl Geol, Inst Geosci Res TIGeR, Perth, WA, Australia
[4] Ist Nazl Geofis & Vulcanol, Rome, Italy
基金
澳大利亚研究理事会;
关键词
Oroclinal bending; Subduction rollback; Back-arc extension; New England Orogen; Paleomagnetism; NEW-SOUTH-WALES; FOLD BELT; TECTONIC IMPLICATIONS; STRUCTURAL EVOLUTION; SUBDUCTION COMPLEX; CENTRAL QUEENSLAND; TEXAS OROCLINE; SURAT BASINS; CONSTRAINTS; HISTORY;
D O I
10.1016/j.tecto.2015.09.018
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
Orogenic curvatures (oroclines) are common in modern and ancient orogens, but the geodynamic driving forces of many oroclines remain controversial. Here we focus on the New England oroclines of eastern Australia, the formation of which had been previously broadly constrained to the Early-Middle Permian. This time interval encompasses periods of both back-arc extension (at similar to 300-280-Ma) and subsequent contractional deformation (Hunter-Bowen Orogeny) that commenced at similar to 270 Ma along the paleo-Pacific and Gondwanan subduction plate boundary. We present new paleomagnetic data from volcanic rocks that were extruded during the transition from extension to contraction (at similar to 272 Ma), and we show that the oroclinal structure must have formed prior to the emplacement of the volcanic rocks. Our results thus indicate that oroclinal bending in the southern-most New England Orogen has been completed prior to the onset of Middle Permian contractional deformation. It is therefore concluded that the oroclines have likely formed during back-arc extension, and that a major contribution to the orogenic curvature was driven by trench retreat. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:182 / 190
页数:9
相关论文
共 50 条
[41]   Formation of weathering-derived magnesite deposits in the New England Orogen, New South Wales, Australia: Implications from mineralogy, geochemistry and genesis of the Attunga magnesite deposit [J].
Hans C. Oskierski ;
Judy G. Bailey ;
Eric M. Kennedy ;
Geraldine Jacobsen ;
Paul M. Ashley ;
Bogdan Z. Dlugogorski .
Mineralium Deposita, 2013, 48 :525-541
[42]   Devonian supra-subduction zone setting for the Princhester and Northumberland Serpentinites: implications for the tectonic evolution of the northern New England Orogen [J].
Murray, C. G. .
AUSTRALIAN JOURNAL OF EARTH SCIENCES, 2007, 54 (07) :899-925
[43]   Continuation of the new england orogen, australia, beneath the queensland plateau and lord howe rise [J].
Mortimer, N. ;
Hauff, F. ;
Calvert, A. T. .
AUSTRALIAN JOURNAL OF EARTH SCIENCES, 2008, 55 (02) :195-209
[44]   Tectonic implications of new Late Cretaceous paleomagnetic constraints from Eastern Liaoning Peninsula, NE china [J].
Lin, W ;
Chen, Y ;
Faure, M ;
Wang, QC .
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH, 2003, 108 (B6)
[45]   Constraining the Cambrian drift of Gondwana with new paleomagnetic data from post-collisional plutons of the Aracuai orogen, SE Brazil [J].
Temporim, F. A. ;
Bellon, U. D. ;
Domeier, M. ;
Trindade, R. I. F. ;
D'Agrella-Filho, M. S. ;
Tohver, E. .
PRECAMBRIAN RESEARCH, 2021, 359
[46]   New Early Triassic paleomagnetic data from Huangben section, Guangdong and its tectonic implications [J].
Shen Zhongyue ;
Ding Jinghai ;
Ye Changhe ;
Wen Junwei ;
Wang Zhaoliang ;
Chen Zhifei .
CHINESE SCIENCE BULLETIN, 2006, 51 (15) :1894-1902
[47]   Paleomagnetic study on Cretaceous and Paleogene rocks from eastern Heilongjiang, NE China and its tectonic implications [J].
Wang Hai-Long ;
Huang Bao-Chun ;
Qiao Qing-Qing ;
Chen Jun-Shan .
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2011, 54 (03) :793-806
[48]   Montane mire vegetation of the New England Tablelands Bioregion of Eastern Australia [J].
Hunter, John T. ;
Hunter, Vanessa H. .
VEGETATION CLASSIFICATION AND SURVEY, 2020, 1 :37-51
[49]   New Late Cretaceous paleomagnetic data from volcanic rocks and red beds from the Lhasa terrane and its implications for the paleolatitude of the southern margin of Asia prior to the collision with India [J].
Cao, Yong ;
Sun, Zhiming ;
Li, Haibing ;
Pei, Junling ;
Jiang, Wan ;
Xu, Wei ;
Zhao, Laishi ;
Wang, Leizhen ;
Li, Chenglong ;
Ye, Xiaozhou ;
Zhang, Lei .
GONDWANA RESEARCH, 2017, 41 :337-351
[50]   First paleomagnetic data for the New Siberian Islands: Implications for Arctic paleogeography [J].
Metelkin, D. V. ;
Vernikovsky, V. A. ;
Tolmacheva, T. Yu. ;
Matushkin, N. Yu. ;
Zhdanova, A. I. ;
Pisarevsky, S. A. .
GONDWANA RESEARCH, 2016, 37 :308-323