Sedimentary Rocks in the Field / Edition 3

Sedimentary Rocks in the Field / Edition 3

by Maurice E. Tucker
ISBN-10:
0470851236
ISBN-13:
9780470851234
Pub. Date:
05/09/2003
Publisher:
Wiley

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Overview

Sedimentary Rocks in the Field / Edition 3

This handy pocket-sized guide shows how to achieve successful fieldwork on sedimentary rocks, paying particular detail to the precision and accuracy of recording detail. Various sedimentary rock-types, textures and all the basic field techniques required are clearly described.

Thoroughly revised to incorporate up-to-date information, this 3rd edition will be of use to all students and professionals with a geological background.

Features include:

  • New sections on safety in the field, the use of GPS in sedimentary studies, core description, fossils as depth indicators and facies models.
  • Improved illustrations and a new updated layout.

Product Details

ISBN-13: 9780470851234
Publisher: Wiley
Publication date: 05/09/2003
Series: Geological Field Guide Series , #23
Edition description: REV
Pages: 244
Product dimensions: 4.63(w) x 7.17(h) x 0.54(d)

Table of Contents

Preface vii

Acknowledgements ix

1 Introduction 1
1.1 Tools of the Trade 1
1.2 Other Tools for the Field 2
1.3 Use of GPS in Sedimentary Studies 3
1.4 Safety in the Field and General Guidance for Fieldwork 4

2 Field Techniques 7
2.1 What to Look for 7
2.2 The Approach 8
2.3 Field Notes 9
2.4 Graphic Logs 10
2.5 The Logging of Cores 15
2.6 Lithofacies Codes 16
2.7 Collecting Specimens 17
2.8 Presentation of Results 18
2.9 The Way-Up of Sedimentary Strata 19
2.10 Stratigraphic Practice 20

3 Sedimentary Rock Types 29
3.1 Principal Lithological Groups 29
3.2 Sandstones 32
3.3 Conglomerates and Breccias 36
3.4 Mudrocks 39
3.5 Limestones 40
3.6 Evaporites 51
3.7 Ironstones 53
3.8 Cherts 55
3.9 Sedimentary Phosphate Deposits (Phosphorites) 57
3.10 Organic-Rich Deposits 58
3.11 Volcaniclastic Deposits 59

4 Sedimentary Rock Texture 67
4.1 Introduction 67
4.2 Sediment Grain Size and Sorting 67
4.3 Grain Morphology 69
4.4 Sediment Fabric 72
4.5 Textural Maturity 75
4.6 Texture of Conglomerates and Breccias 76
4.7 Induration and Degree of Weathering 77
4.8 Colour of Sedimentary Rocks 79

5 Sedimentary Structures and Geometry of Sedimentary Deposits 83
5.1 Introduction 83
5.2 Erosional Structures 83
5.3 Depositional Structures 88
5.4 Depositional Structures of Limestones (Including Dolomites) 119
5.5 Post-Depositional Sedimentary Structures 127
5.6 Biogenic Sedimentary Structures 143
5.7 Geometry of Sedimentary Deposits and Lateral Facies Changes 158

6 Fossils in the Field 163
6.1 Introduction 163
6.2 Fossil Distribution and Preservation 166
6.3 Fossil Associations and Diversity 170
6.4 Skeletal Diagenesis 174

7 Palaeocurrent Analysis 179
7.1 Introduction 179
7.2 Palaeocurrent Measurements 179
7.3 Structures for Palaeocurrent Measurement 185
7.4 Presentation of Results and Calculation of Vector Means 187
7.5 Interpretation of the Palaeocurrent Pattern 188

8 What Next? Facies Analysis, Cycles and Sequences 191
8.1 Introduction 191
8.2 Facies Analysis 191
8.3 Facies Models and Depositional Environments 193
8.4 Cycle Stratigraphy and Sequence Stratigraphy 194

References and Further Reading 225

Index 229

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