Fluvial Megafans on Earth and Mars

doi:10.1017/9781108525923

Megafans are partial cones of river sediment that reach unexpectedly large dimensions, with the largest on Earth being 700 km long. Due to recent developments in space-based observations, global mapping efforts have shown that modern megafan features cover vast landscapes on most continents. This book provides a new inventory of nearly 300 megafans across five continents. Chapters focus on regional studies of megafans from all continents barring North America and Antarctica. The major morphological attributes of megafans and multi-megafan landscapes are discussed, and the principal controls on megafan development are examined. The book also compares megafans with alluvial fans, deltas, floodplains and the recently recognised 'major avulsive fluvial system' (MAFS). The final part of the book discusses the application of megafan research to economic geology, aquifers and planetary geology including layered deposits on Mars. This is an invaluable reference for researchers in geomorphology, sedimentology and physical geography.

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Contents

Fluvial Megafans on Earth and Mars
pp i-ii
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Fluvial Megafans on Earth and Mars - Title page
pp iii-iii
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Copyright page
pp iv-iv
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Contents
pp v-xi
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Contributors
pp xii-xiv
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Foreword
pp xv-xviii
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Part I - Introduction
pp 1-20
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1 - Megafans as Major Continental Landforms
pp 3-12
- By M. Justin Wilkinson, Yanni Gunnell
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2 - A Global Megafans Map
pp 13-20
- By M. Justin Wilkinson, Nathan Currit
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Part II - Regional Studies
pp 21-260
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3 - Megafans of Africa
pp 23-47
- By M. Justin Wilkinson, Kevin Burke, Nathan Currit, Mikhail A. Kreslavsky
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4 - Megafans of the Northern Kalahari Basin (Angola, Botswana, Namibia, Zambia)
pp 48-77
- By M. Justin Wilkinson, Roy McG. Miller, Frank Eckardt, Mikhail A. Kreslavsky
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5 - The Chaco Megafans, South America
pp 78-99
- By Edgardo M. Latrubesse, Edward Park, Carlos Ramonell, M. Anwar Sounny-Slitine, Edgardo Cafaro
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6 - Megafans of the Pantanal Basin, Brazil
pp 100-118
- By Maurício G. M. Santos, José C. Stevaux, Mario L. Assine
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7 - Geomorphic and Chronological Assessment of Aggradation Patterns on the Río Grande (Guapay) Megafan, Eastern Bolivia
pp 119-140
- By Jan-Hendrik May, Timothy Cohen, Frank Preusser, Heinz Veit
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8 - Megafans of Southern and Central Europe
pp 141-164
- By Alessandro Fontana, Paolo Mozzi
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9 - The Loire Megafan, Central France
pp 165-183
- By Yanni Gunnell
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10 - Megafans of the Gangetic Plains, India
pp 184-201
- By Rajiv Sinha, Kanchan Mishra, Sampat K. Tandon
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11 - The Kosi Megafan, India
pp 202-218
Morphology, Dynamics, and Sedimentology
- By Rajiv Sinha, Kumar Gaurav, Kanchan Mishra, Surya Gupta
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12 - The Holocene Mitchell Megafan, Gulf of Carpentaria, Australia
pp 219-241
- By Tessa I. Lane, Rachel A. Nanson, R. Bruce Ainsworth, Boyan K. Vakarelov
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13 - Megafans of the Northern Victorian Riverine Plains, SE Australia
pp 242-260
- By Karen A. Kapteinis, John A. Webb, Susan Q. White
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Part III - Applications in Other Sciences
pp 261-336
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14 - Geology of Fluvial-Fan Deposits
pp 263-286
Facies Patterns, Architectural Organisation, and Implications for Economic Geology
- By Dario Ventra, Andrea Moscariello
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15 - An Investigation of Lithology, Hydrogeology, Bioturbation, and Pedogenesis in a Borehole through the Cubango Megafan, Northern Namibia
pp 287-307
- By Roy McG. Miller, Stephen T. Hasiotis, Christoph Lohe, Falk Lindenmaier, Martin Quinger
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16 - Megafans on Mars
pp 308-336
A Fluvial Analogue for the Sinus Meridiani Layered Sediments
- By M. Justin Wilkinson, Mark Salvatore, Ricardo Vilalta
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Part IV - Megafans in World Landscapes
pp 337-388
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17 - Megafans in World Landscapes
pp 339-371
Results of a Global Survey
- By M. Justin Wilkinson
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18 - Some Future Megafan Research Directions
pp 372-388
- By M. Justin Wilkinson, Yanni Gunnell
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Index
pp 389-398
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