| 东澳大利亚南悉尼盆地二叠纪的地层、沉积环境与盆地演化 |
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| 引用本文： | 杜远生,Guang R SHI.东澳大利亚南悉尼盆地二叠纪的地层、沉积环境与盆地演化[J].古地理学报,2003,5(2):142-151. |
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| 作者姓名： | 杜远生 Guang R SHI |
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| 作者单位： | 1.中国地质大学地球科学学院 湖北武汉 430074;2.School of Ecology and Environment, Deakin University, Victoria 3125, Australia |
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| 基金项目： | Australian Research Council、Deakin大学和中国国家自然科学基金 (4 9972 0 78)联合资助 |
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| 摘 要： | 晚石炭世末期-三叠纪东澳大利亚的鲍恩-冈尼达-悉尼（Bowen- Gunnedah-Sydney）盆地系是位于拉克伦（Lachlan）褶皱带和新英格兰（New England）褶皱带之间的一个长条形的构造盆地。从北部的冈尼达（Gunnedah）到南部的巴特曼斯（Batemans）湾，悉尼盆地是鲍恩-冈尼达-悉尼盆地系南端的一个次级盆地。悉尼盆地的二叠系包括河流、三角洲、滨浅海沉积岩和火山岩地层。南悉尼盆地的西南部二叠系不整合覆盖于变形变质的拉克伦（Lachlan）褶皱带之上。二叠系由下部的塔拉特郎（Tallaterang）群、中部的肖尔黑文群（Shoalhaven Group）和上部的伊勒瓦拉煤系（Illawarra Coal Measures）组成。从晚石炭世末到中三叠世悉尼盆地经历了弧后扩张到典型的前陆盆地的不同阶段：弧后扩张阶段、被动热沉降阶段和挤压挠曲负载阶段。
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| 关 键 词： | 澳大利亚 悉尼盆地 二叠纪 沉积环境 地层 盆地演化 |
| 文章编号： | 1671-1505(2003)02-0142-10 |
| 修稿时间： | 2002年9月3日 |
PERMIAN STRATIGRAPHY, SEDIMENTARY ENVIRONMENTS AND BASIN EVOLUTION OF SOUTHERN SYDNEY BASIN IN EASTERN AUSTRALIA |
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| Guang R SHI.PERMIAN STRATIGRAPHY, SEDIMENTARY ENVIRONMENTS AND BASIN EVOLUTION OF SOUTHERN SYDNEY BASIN IN EASTERN AUSTRALIA[J].Journal of Palaeogeography,2003,5(2):142-151. |
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| Authors: | Guang R SHI |
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| Institution: | 1.Faculty of Earth Sciences of China University of Geosciences, Wuhan 430074，Hubei;2.School of Ecology and Environment, Deakin University, Victoria 3125, Australia |
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| Abstract: | The latest Carboniferous to Triassic Sydney-Gunnedah-Bowen Basin System in the eastern Australia is an elongate structural basin that locates between the Lachlan Caledonian Fold Belt in the west and the New England Fold Belt in the east. Extending from the Gunnedah district in the north to the Batemans Bay in the south, the Sydney Basin is a sub-basin located in the southern part of the Sydney-Gunnedah-Bowen Basin System. The Permian in Sydney Basin consists of sedimentary sequences of fluvial, delta, littoral and shallow marine environments, as well as volcanic rocks. In the southwest of southern Sydney Basin, the Permian unconformably onlaps the highly deformed and metamorphosed Lachlan Fold Belts. The Permian System from the southern Sydney Basin comprises the Lower Permian Tallaterang Group(consisting of Clyde Coal Measures and Wasp Head Formation), Shoalhaven Group(consisting of the Lower Permian Yadboro & Tallong Conglomerate, Yarrunga Coal Measures, Pebbly Beach Formation, Snapper Point Formation and the Middle Permian Wandrawandian Siltstone, Nowra Sandstone, Berry Siltstone and Broughton Formation) and the Upper Permian Illwarra Coal Measures. From the latest Carboniferous to the Middle Triassic, the Sydney-Bowen Basin had experienced different tectonic phases from a back-arc extensional regime to a typical foreland basin: a back-arc extensional phase, a passive thermal sag phase and a flexural loading and increased compressional phase. |
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| Keywords: | Australia Sydney Basin Permian stratigraphy sedimentary environments basin evolution |
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