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澳大利亚南新英格兰造山带北黑斯廷斯地块的地质变形演化历史(英文版) 版权信息
- ISBN：9787030702906
- 条形码：9787030702906 ; 978-7-03-070290-6
- 装帧：一般胶版纸
- 册数：暂无
- 重量：暂无
- 所属分类：>>
澳大利亚南新英格兰造山带北黑斯廷斯地块的地质变形演化历史(英文版) 本书特色
适读人群 ：地质相关专业研究生、地质工作者和科研人员本书为研究区金属矿床的勘探与预测提供了重要的基础地质信息。
澳大利亚南新英格兰造山带北黑斯廷斯地块的地质变形演化历史(英文版) 内容简介
新英格兰造山带位于东澳造山带很东部，包括新南威尔士州大部分地区和昆士兰州南部Texas地块，其中黑斯廷斯地块位于新英格兰造山带南部，受二叠纪以前构造变形的强烈改造，可划分为北黑斯廷斯地块和南黑斯廷斯地块两部分。本书通过研究区断裂构造运动学分析，结合重力和磁力蠕虫等模拟分析，重点研究了北黑斯廷斯地块内断裂系统的组成和活动期次，并详细讨论了其地质构造变形的演化过程。研究认为，北黑斯廷斯地块内共有5期断裂活动，其中两期主要的断裂系统与石炭纪早期北黑斯廷斯地块的滑移与旋转有关，个别右旋走滑断裂系统则形成于较晚的晚三叠世。北黑斯廷斯地块断裂系统的运动学解析为该区金属矿床的勘探与预测提供了重要的基础地质信息。
澳大利亚南新英格兰造山带北黑斯廷斯地块的地质变形演化历史(英文版) 目录
Contents
Preface
Foreword
Chapter 1 Geological Background 1
1.1 Tectonic Setting 1
1.2 Local Setting 3
1.3 Structural History 5
1.3.1 Nambucca Block 6
1.3.2 Hastings Block 9
1.3.3 Port Macquarie Block 14
1.3.4 Tamworth Belt 15
1.4 The Hunter-Bowen Orogeny 18
Chapter 2 Folding and Cleavage History in the NHB 20
2.1 Introduction 20
2.2 Methodology 21
2.3 Analysis of Bedding Data in the NHB 22
2.4 Analysis of Cleavage Data in the NHB 28
2.5 Analysis of Folding Data in the NHB 32
2.6 Evidence of Overprinting of Structures in the Nambucca Block and NHB 40
2.6.1 Evidence of Overprinting of Structures in the Nambucca Block 40
2.6.2 Cleavages in the NHB 41
2.6.3 Folded Folds in the NHB 42
2.6.4 Faults Displacing Cleaved and Folded Rock in the NHB 42
2.7 Evidence of Overprinting of Structures in the Nambucca Block and NHB 44
Chapter 3 Fault History in the Northern Hastings Block， Southern New England Orogen 46
3.1 Previous Work 46
3.2 Conventional Fault Analysis 50
3.3 Kinematics and Morphology of Faults 53
3.4 Fault Timing 60
3.4.1 The Earliest Time Faulting Could Have Started 60
3.4.2 The Latest Time Faulting Could Have Stopped 62
3.4.3 The Relationship between Faulting and Folding/Cleavage Development 65
3.5 Fault Movement Analysis 66
3.5.1 The Earliest Time Faulting Could Have Started 66
3.5.2 The Latest Time Faulting Could Have Stopped 67
3.5.3 Faults with a Common Strike 68
3.5.4 Implication of Fault Movement Analysis 68
3.5.5 Fault History of the Northern Hastings Block 70
3.6 Brief Summary 73
Chapter 4 Evidence from Fault Block Analysis for A Re-interpretation of the Northern Hastings Block Geology 75
4.1 Fault Systems in the NHB 76
4.2 Interpretations of Geological Data 78
4.3 Gravity and Magnetic Worms Analysis in the HB 79
4.3.1 Gravity and Magnetic Worms 79
4.3.2 Worms Analysis in the Hastings Block 80
4.4 Fault Block Analysis 96
4.4.1 Fault Block A 96
4.4.2 Fault Block B 99
4.4.3 Fault Block C 100
4.4.4 Fault Block D 102
4.4.5 Fault Block E 103
4.4.6 Fault Block F 104
4.4.7 Fault Block G 106
4.4.8 Fault Block H 106
4.4.9 Fault Block I 109
4.4.10 Fault Block J 109
4.4.11 Fault Block K 111
4.5 Implications 113
4.5.1 Fault Block Analysis Highlighted the Shortcomings with the Existing Geological Map 113
4.5.2 Implication of the Fault Blocks Reconstruction for the Entire NHB 119
4.6 Brief Summary 128
Chapter 5 Geological History 130
5.1 Northern Hastings Block-Nambucca Block 132
5.2 Relationship to Surrounding Blocks 135
References 137
Appendices 146
Appendix 1 146
Appendix 2 147
Appendix 3 159
Preface
Foreword
Chapter 1 Geological Background 1
1.1 Tectonic Setting 1
1.2 Local Setting 3
1.3 Structural History 5
1.3.1 Nambucca Block 6
1.3.2 Hastings Block 9
1.3.3 Port Macquarie Block 14
1.3.4 Tamworth Belt 15
1.4 The Hunter-Bowen Orogeny 18
Chapter 2 Folding and Cleavage History in the NHB 20
2.1 Introduction 20
2.2 Methodology 21
2.3 Analysis of Bedding Data in the NHB 22
2.4 Analysis of Cleavage Data in the NHB 28
2.5 Analysis of Folding Data in the NHB 32
2.6 Evidence of Overprinting of Structures in the Nambucca Block and NHB 40
2.6.1 Evidence of Overprinting of Structures in the Nambucca Block 40
2.6.2 Cleavages in the NHB 41
2.6.3 Folded Folds in the NHB 42
2.6.4 Faults Displacing Cleaved and Folded Rock in the NHB 42
2.7 Evidence of Overprinting of Structures in the Nambucca Block and NHB 44
Chapter 3 Fault History in the Northern Hastings Block， Southern New England Orogen 46
3.1 Previous Work 46
3.2 Conventional Fault Analysis 50
3.3 Kinematics and Morphology of Faults 53
3.4 Fault Timing 60
3.4.1 The Earliest Time Faulting Could Have Started 60
3.4.2 The Latest Time Faulting Could Have Stopped 62
3.4.3 The Relationship between Faulting and Folding/Cleavage Development 65
3.5 Fault Movement Analysis 66
3.5.1 The Earliest Time Faulting Could Have Started 66
3.5.2 The Latest Time Faulting Could Have Stopped 67
3.5.3 Faults with a Common Strike 68
3.5.4 Implication of Fault Movement Analysis 68
3.5.5 Fault History of the Northern Hastings Block 70
3.6 Brief Summary 73
Chapter 4 Evidence from Fault Block Analysis for A Re-interpretation of the Northern Hastings Block Geology 75
4.1 Fault Systems in the NHB 76
4.2 Interpretations of Geological Data 78
4.3 Gravity and Magnetic Worms Analysis in the HB 79
4.3.1 Gravity and Magnetic Worms 79
4.3.2 Worms Analysis in the Hastings Block 80
4.4 Fault Block Analysis 96
4.4.1 Fault Block A 96
4.4.2 Fault Block B 99
4.4.3 Fault Block C 100
4.4.4 Fault Block D 102
4.4.5 Fault Block E 103
4.4.6 Fault Block F 104
4.4.7 Fault Block G 106
4.4.8 Fault Block H 106
4.4.9 Fault Block I 109
4.4.10 Fault Block J 109
4.4.11 Fault Block K 111
4.5 Implications 113
4.5.1 Fault Block Analysis Highlighted the Shortcomings with the Existing Geological Map 113
4.5.2 Implication of the Fault Blocks Reconstruction for the Entire NHB 119
4.6 Brief Summary 128
Chapter 5 Geological History 130
5.1 Northern Hastings Block-Nambucca Block 132
5.2 Relationship to Surrounding Blocks 135
References 137
Appendices 146
Appendix 1 146
Appendix 2 147
Appendix 3 159
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澳大利亚南新英格兰造山带北黑斯廷斯地块的地质变形演化历史(英文版) 节选
Chapter 1 Geological Background 1.1 Tectonic Setting The New England Orogen is the easternmost and youngest component of the Tasmanide orogenic collage of eastern Australia (Glen， 2005; Offler and Murray， 2011)， which comprises various terranes that interacted， accreted or amalgamated with each other. It is a major north-trending Palaeozoic structure that extends over approximately 1300 km from Bowen (20° S) in Queensland to Newcastle (33° S) in New South Wales (Figure 1.1). Furthermore， it developed over a period of approximately 300 million years along the East Gondwana margin and underwent pulses of contraction and extension resulting in folding， oroclinal bending， metamorphism， and basin formation. In the latter part of its history， a Carboniferous volcanic arc， fore-arc basin， and accretionary wedge terranes formed (Leitch， 1975; Cawood and Leitch， 1985; Flood and Aitchison， 1988). The arc， particularly in the south， is mostly buried under the Sydney， Gunnedah， and Bowen basins. The fore-arc and subduction complex is separated by a major fault， the Peel-Manning-Yarrol Fault System which is marked by serpentinite bodies that may represent a disrupted， early Cambrian ophiolite succession (Aitchison et al.， 1992). The orogen can be subdivided into a northern segment and a southern segment， separated by Mesozoic sedimentary rocks of the Clarence-Moreton Basin. Furthermore， the Northern New England Orogen can be subdivided into: 1) a northern region within which deformation is characterized by open folds and variable， but generally minor thrusting; 2) a central region of thin-skinned， fold-thrust deformation with cross-orogen tear faults， and within which strain is strongly partitioned， and cleavage development is variable (Gogango Thrust Belt and more eastern terranes) (Figure 1.1， Cawood et al.， 2011); and 3) a southern region of thick-skinned deformation within which the basement appears to be involved in deformation. The Southern New England Orogen constitutes a weakly deformed fore-arc basin in the west (Tamworth Belt) and an accretionary wedge of metasedimentary rocks in the east (Tablelands Complex) (Figure 1.2). These are separated by the Peel-Manning Fault System (Leitch， 1974; Korsch， 1977). Figure 1.1: Geological map of the Hastings Block. (a) Location and tectonic setting of the Hastings Block within eastern Australia and within the Southern New England Orogen. (b) Major tectonic units and faults within and adjacent to the Hastings Block (simplified from Roberts et al.， 1995).(c) Simplified geological map of the Hastings Block with the suggested boundary between the SHB and NHB shown by the dashed line. Numerous tectonic models have been proposed for the development of the New England Orogen (Scheibner， 1973; Leitch， 1974; Cawood， 1982; Murray et al.， 1987). Most infer a long-lived， east-facing convergent plate margin configuration with progressive accretion of younger rocks at the eastern margin of Gondwana. Offler and Murray (2011) showed that intra-oceanic island arc and back-arc basin (BAB) settings dominate throughout the Devonian and those basalt compositions in the Late Devonian sequences of the Southern New England Orogen and the Northern New England Orogen become more arc-like to the west， suggesting that the subduction zone dipped to the east beneath intra oceanic arcs at this time. Buckman et al. (2014) proposed that the NEO contains a large， far-traveled oceanic and island arc terrane that was emplaced over the Gondwanan margin during the latest Devonian to Early Carboniferous. 1.2 Local Setting The Southern New England Orogen (SNEO) buried volcanic arc， concave to the east fore-arc (Tamworth Belt)， and an accretion-subduction complex (Tablelands Complex) associated with a west-dipping subduction zone consists of Cambrian to Carboniferous buried volcanic arc， a fore-arc basin sequences of the Tamworth Belt and a Silurian to Early Carboniferous accretion-subduction complex rocks of the Tablelands Complex (Figure 1.2). The Tamworth Belt is separated from the Tablelands Complex by the Peel-Manning Fault System. The Tamworth Belt is faulted against the Sydney Basin， along with the Hunter-Mooki Thrust System. To the southeast， near Maitland， sediments of the Sydney basin overlap those of the Tamworth Belt (Figure 1.2). Assemblages in the Southern New England Orogen are predominantly Devonian and Carboniferous volcanic and sedimentary units intruded by younger S- and I-type granite plutons， with several major occurrences of ultramafic rocks and serpentinite-matrix melange which have “ophiolitic” affinities (Aitchison and Ireland， 1995). In the Tamworth Belt， the rocks record burial metamorphism with diagenetic to sub-greenschist facies assemblages (Offler et al.， 1997; Offler， 2005); while in the Tablelands Complex， sub-greenschist to greenschist facies rocks occur as well as high P - low T (Phillips et al.， 2010) and higher grade high T - low P metamorph
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