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E-raamat: Brahmaputra River in Assam: Geomorphology, Hazards, and Natural Resources [Taylor & Francis e-raamat]

  • Formaat: 298 pages, 32 Tables, black and white; 87 Line drawings, black and white; 67 Halftones, black and white; 126 Illustrations, color; 28 Illustrations, black and white
  • Ilmumisaeg: 20-Dec-2022
  • Kirjastus: CRC Press
  • ISBN-13: 9781003302353
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  • Taylor & Francis e-raamat
  • Hind: 193,88 €*
  • * hind, mis tagab piiramatu üheaegsete kasutajate arvuga ligipääsu piiramatuks ajaks
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Brahmaputra River in Assam: Geomorphology, Hazards, and Natural ResourcesSuurem pilt
  • Formaat: 298 pages, 32 Tables, black and white; 87 Line drawings, black and white; 67 Halftones, black and white; 126 Illustrations, color; 28 Illustrations, black and white
  • Ilmumisaeg: 20-Dec-2022
  • Kirjastus: CRC Press
  • ISBN-13: 9781003302353
Teised raamatud teemal:
Taylor & Francis e-raamatudRohkem infot Taylor & Francis e-raamatute kohta
Raamatu kodulehekülg: https://www.taylorfrancis.com/books/9781003302353

This holistic book covers the richest area in North East India in terms of both explored and foreseen reserves of fossil fuels and other natural resources. Using a multidisciplinary approach, GIS, and geospatial data gathered from different case studies included, this book helps readers develop a thorough understanding of a highly dynamic big river, the Brahmaputra, and use it as a comprehensive resource for further understanding the science of rivers. It discusses the causal factors of decadal-scale fluvial dynamics, the nature of fluvial dynamics, lateral variability of the older flood plains and neotectonics in the shallow subsurface, and the overall trend of basin evolution at different depths.



Using a multidisciplinary approach, GIS, and geospatial data gathered from different case studies included, this book helps readers develop a thorough understanding of a highly dynamic big river, the Brahmaputra.

List of Figures
xiii
List of Tables
xxi
Preface xxv
Acknowledgements xxvii
Author xxix
1 Introduction
1(12)
The Upper Reach of the Brahmaputra Valley
6(1)
Precipitation and Hydrology
7(2)
Natural Hazards
9(1)
Essential Objectives
9(4)
2 A Quick Review: Geoscientific Understanding of the Brahmaputra Valley
13(20)
General Geology and Geomorphology
15(2)
Stratigraphy
17(3)
Archaean
20(1)
Precambrian
20(1)
Mesozoic
20(1)
Tertiary
21(1)
Paleogene Strata
21(1)
Neogene Strata
21(1)
Quaternary Deposits
22(1)
Structural and Tectonic Setting
22(1)
Seismicity
23(1)
Tectonic Setting of the Brahmaputra Valley
24(1)
Limitations of `Geosynclinal Theory'
24(1)
Implications of `Pop-Up' Theory
25(1)
Different Collision Models and Their Influence on the Basin Evolution
26(2)
Neotectonic Elements
28(1)
Geomorphic Evidence
28(1)
Structural Evidence
29(1)
Fluvial Dynamics and Morphotectonics
29(4)
3 Tools and Methods: A Brief Appraisal
33(26)
Common Geological Problems
35(1)
Questions of Usual Concern in Geophysical Exploration
35(1)
Inverse Nature of Geophysical Problems
36(1)
Effect of Size and Depth of the Causative Body
36(2)
Planning Geophysical Investigations
38(1)
`Noise' and the Problems of Enhancing `Signal'
39(1)
Resolution
40(1)
Data Reduction
41(2)
Data Presentation
43(1)
Geological Objects and Their Geophysical Generalizations
43(1)
Geophysical Data Integration
44(1)
Gravity Data
45(1)
Bouguer Anomaly
45(2)
Regional-Residual Separation
47(1)
Seismic data analysis and basic principles of interpretation
48(1)
The `Seismic Data'
48(2)
Noise Reduction
50(2)
2D Seismic Data Interpretation
52(2)
Shallow Subsurface Geophysical Field Data Samples
54(1)
Uphole Data
54(1)
Shallow Refraction Data
55(1)
Remote Sensing and GIS
56(1)
Data Used
57(1)
Data Integration
58(1)
4 Fluvial Dynamics and the Changing Interfluves
59(50)
Data and Approach
63(2)
Dynamics of the Main Brahmaputra River
65(2)
Bank-Line Shift
67(3)
Basin Asymmetry and Bank-Line Shift
70(1)
Planar and Temporal Variability of Width
71(5)
Trend Analysis of the Bank-Line Shift and Width Variation
76(3)
Channel Avulsion and Migration
79(1)
Morphodynamics of the Brahmaputra River
79(3)
Major Changes in River Islands
82(1)
Majuli Island
82(1)
Geomorphology, History, and Mechanism of Erosion of Majuli Island
83(6)
Thalweg Migration
89(1)
Subansiri Effect
90(1)
Effect of Erosion of Majuli Island on BB Formation
90(2)
Erosion of Majuli Island and the Aggradation Tendency
92(1)
Existing Hypothesis for the Genesis of Majuli Island and Related Questions
92(1)
Dibru-Saikhowa Island -- the New Majuli
93(2)
Bank erosion in Rohmoria
95(1)
Dynamics of the Brahmaputra Tributaries
96(2)
South Bank Tributaries
98(3)
North Bank Tributaries
101(1)
Morphotectonic Zonation of the Upper Reach of the Brahmaputra Valley
101(4)
Recent Seismicity and Fluvial Dynamics
105(1)
Morphotectonic Model for Morphodynamics
106(3)
5 Quaternary Geomorphology, Shallow Subsurface Stratigraphy, and Neotectonics
109(44)
Theoretical Aspects
112(1)
A `Layer'
113(1)
Velocity as an Attribute for Basin Analysis
113(2)
Micro-Zonation of the Basin
115(1)
Significance of Tectonogeomorphic-Type Areas
116(1)
Type 1 Areas [ V3 (High) V2 (High) V1 (High)]
116(1)
Type 2 Areas [ V3 (High) V2 (High) V1 (Low)]
116(1)
Type 3 Areas [ V3 (High) V2 (Low) V1 (High)]
117(1)
Type 4 Areas [ V3 (High) V2 (Low) V1 (Low)]
117(1)
Type 5 Areas [ V3 (Low) V2 (High) V1 (High)]
117(1)
Type 6 Areas [ V3 (Low) V2 (high) V1 (Low)]
117(1)
Type 7 Areas [ V3 (Low) V2 (Low) V1 (High)]
117(1)
Type 8 Areas [ V3 (Low) V2 (Low) V1 (Low)]
118(1)
Multi-Parametric Attributes for Basin Analysis
118(1)
Choosing `Threshold' Values
119(1)
Study `Windows'
120(1)
Window 1 Amguri
121(2)
The Amguri Data
123(4)
Fluvial dynamics in Amguri Window
127(1)
Oldest Channel Belt in Layer 3
127(1)
Older Channel Belt in Layer 2
127(1)
Old Channel Belt in Layer 1
128(1)
Tectonic Controls and the River Dynamics
129(1)
Neotectonics and Oil Migration
129(1)
Multi-Parametric Micro-Zonation
129(3)
Window 2 Namrup--Sapekhati
132(1)
Namrup--Sapekhati data
133(1)
Landform Variability and Quaternary Geomorphology
134(1)
Fluvial Dynamics and Quaternary Basin Evolution
135(2)
Neotectonics and Valley-Range Relationship
137(1)
Multi-Parametric Micro-Zonation and the Oil Fields
138(3)
Window 3 Matikhana
141(1)
Matikhana Data
141(1)
Salient Features in Window 3
141(3)
Window 4 Mechaki
144(2)
Window 4 Mechaki Data
146(2)
Salient Features in Window 4
148(1)
Discussion
148(5)
6 Basin Evolution and Fluvial Dynamics
153(24)
Seismic Sections
154(1)
Profile A-A'
154(1)
Profile B-B'
155(2)
Profile C-C'
157(1)
Profile D-D'
157(1)
Profile E-E'
157(1)
Profile F-F'
157(4)
Discussion
161(1)
Generalized Lithostratigraphy and Basin Evolution
161(2)
Basin-Forming Tectonics
163(1)
Sequence 1 Margin Sag (MS-321)
163(2)
Sequence 2 Margin Sag-Interior Sag (MSIS-321)
165(1)
Sequence 3 Interior Sag (IS-31)
165(1)
Sequence 4 Shear or Wrench Initiation (LL1)
165(1)
Sequence 5 Wrench Deformation (LL3)
165(1)
Sequence 6 Basin Upliftment (LL3)
166(1)
Basin-Modifying Tectonics
166(1)
Tectonics and Sedimentation
166(3)
Unconformity in the Fluvial Sediments
169(1)
Basin Evolution and Directional Shift in the Major Fluvial System
170(1)
Accommodation Space Generation and Residence Time of Rivers
171(1)
Morphotectonic Evolution of Majuli Island
171(6)
7 Bed-Bank Relationship and Flood Vulnerability
177(16)
Bed-Bank Relationship
178(1)
Assumptions for Flood Characterization
179(2)
Data and Interpretation
181(4)
Flood Characterization
185(3)
Flood Disaster Incubation and Flood Vulnerability
188(5)
8 The Golden Corridor
193(10)
Surface Resources
194(1)
Gold on the Surface
194(1)
Hydropower
195(2)
Alternative Energy Resources like Using Solar Power and Wind Power
197(2)
Shallow Subsurface Resources
199(1)
Gold in the Shallow Subsurface
199(1)
Coal in the Shallow Subsurface
200(1)
Coal Bed Methane (CBM)
200(1)
Deep Subsurface Resources
201(1)
Gold in the Deep Subsurface
201(1)
Deeper Oil Prospects
201(2)
9 Epilogue
203(12)
Morphodynamics of the Brahmaputra River and Tributaries
206(1)
Erosional and Evolutionary History of Majuli Island
207(1)
Multi-Parametric Micro-Zonation in the Shallow Subsurface: Implications for Palaeo-Fluvial Dynamics
208(1)
Cyclic Evolution of the Poly-History Basin
209(1)
Characterization of Changing Bed-Bank Relations
209(1)
Natural Resources of Geological Significance
210(1)
Major Conclusions
210(2)
Scope for Further Work
212(3)
Appendix 1 Field Visit 215(20)
Appendix 2 Tables (Additional for
Chapter 4)		 235(32)
Glossary 267(12)
References 279(14)
Index 293
Siddhartha Kumar Lahiri is an associate professor and coordinator at the Department of Applied Geology in Dibrugarh University, Assam, India. He joined the ONGC as a Surface Geophysicist in 1985 to explore basin scale oil prospects in the Brahmaputra and Barak valleys of Assam. In 1993, he joined Dibrugarh University, India, as a faculty member and he was subsequently instrumental in developing the Applied Geophysics Program at the university. He earned his PhD from IIT Kanpur on basin evolution, morpho-tectonics and fluvial processes in the Brahmaputra River system. Presently, he is engaged with connecting surface processes with different scales of subsurface geophysics.
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