Keywords:
Sedimentary structures.
;
Sedimentology.
;
Electronic books.
Description / Table of Contents:
Sedimentary structures, their character and physical basis Volume 2.
Type of Medium:
Online Resource
Pages:
1 online resource (679 pages)
Edition:
2nd ed.
ISBN:
9780080869445
Series Statement:
Issn Series ; v.Volume 30B
URL:
https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=405223
DDC:
552/.5
Language:
English
Note:
Front Cover -- Sedimentary Structures Their Character and Physical Basis -- Copyright Page -- CONTENTS -- INTRODUCTION TO VOLUME II -- CHAPTER 1. LONGITUDINAL BEDFORMS AND SECONDARY FLOWS -- Introduction -- General character and effects of secondary flows -- Causes of secondary flow -- Sand ribbons in aqueous currents -- Sand ribbons in aeolian environments -- Erosional grooves and ridges -- Longitudinal desert dunes -- Tidal current ridges -- Ridge-and- furrow moulds -- Wave-related furrows and ridges -- Wave-related gravel stripes -- Spur- and- groove -- Glacial flutings -- Trough banding in layered igneous rocks -- Summary -- CHAPTER 2. FREE MEANDERING CHANNELS AND LATERAL DEPOSITS -- Introduction -- Fluvial and tidal meanders -- Flow processes in meanders and channel bends -- Sedimentation processes in meanders and channel bends -- Lateral accretion structures and deposits -- Summary -- CHAPTER 3. AN OUTLINE OF FLOW SEPARATION -- Introduction -- Separation in internal and external flows -- Streamline mappings -- Rollers and vortices: closed and open separation -- Separation in two dimensions -- Axisymmetric flows -- Separation in three dimensions -- Pressure and stress in low-speed separated flows -- Vortex-production and turbulence in low-speed separated flows -- Flow separation at high speeds -- Axisymmetric turbulent jets -- Summary -- CHAPTER 4. SEDIMENTATION FROM JETS AND SEPARATED FLOWS -- Introduction -- Partical free falling velocity in the presence of turbulence -- Sedimentation from jets -- Sand volcanoes -- Sedimentation from separated flows with normal gravity -- Sedimentation in the far lee: shell-pebble lags and ripple fans -- Geometry and structure of lee-side deposits -- Summary -- CHAPTER 5. FLOW AROUND A BLUFF BODY: OBSTACLE MARKS -- Introduction -- General features of bluff-body flows.
,
Bluff bodies in planetary boundary layers -- General implications for sedimentation -- Controls on the character of obstacle marks -- Current crescents in aeolian environments -- Current crescents in aqueous environments -- Current shadows in aeolian environments -- Current shadows in aqueous environments -- Scour-remnant ridges -- Scour features in complex currents -- Summary -- CHAPTER 6. HEAT AND MASS TRANSFER: ICE DUNES, KARREN, AND RELATED FORMS -- Introduction -- Regimes and mechanisms of heat and mass transfer -- Controls on heat and mass transfer -- Heat and mass transfer in separated low-speed flows -- Heat and mass transfer in high-speed flows -- Instabilities accompanying mass or heat-with-mass transfer -- Classification of Kurren -- First-order Kurren -- Second-order Kurren -- Cockling -- Transverse Kurren and related forms -- Structures related to high-speed flow -- Summary -- CHAPTER 7. FLUTE MARKS, MUD RIPPLES, SICHEL WANNEN AND POTHOLES -- Introduction -- Flute marks -- Mud ripples -- Potholes -- Sichelwunnen -- Origin of flute marks -- Origin of mud ripples -- Origin of potholes -- Origin of Sichelwannen -- Summary -- CHAPTER 8. LIQUIDIZATION, LIQUIDIZED SEDIMENT, AND THE SEDIMENTATION OF DENSE PARTICLE DISPERSIONS -- Introduction -- Varieties of liquefaction -- Static liquefaction -- Dynamic and cyclic liquefaction -- Varieties of fluidization -- Stationary fluidization -- Bulk self-fluidization -- Grain self- fluidization -- Apparent viscosity of liquidized sediments -- Sedimentation -- Fluidization after liquefaction -- Summary -- CHAPTER 9. SOFT-SEDIMENT DEFORMATION STRUCTURES -- Introduction -- Kinematics and dynamics of soft-sediment deformation -- Classification of soft-sediment deformation structures -- Deformation structures related to gravitationally unstable vertical profiles of bulk density.
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Deformation structures related to non-uniform confining loads -- Deformation structures related to a downslope body-force component -- Deformed cross-bedding related to fluid drag -- Summary -- CHAPTER 10. STRUCTURES AND SEQUENCES RELATED TO GRAVITY- CURRENT SURGES -- Introduction -- Dissipation of gravity-current surges -- Turbidites and the Bouma sequence -- Pyroclastic flow, ground surge and base surge deposits -- Summary -- CHAPTER 11. COASTAL SAND BARS AND RELATED STRUCTURES -- Introduction -- Morphology of the barred beach and nearby offshore -- Longshore bars and troughs -- Minor sedimentary structures associated with longshore bars and troughs -- Transverse bars -- Beach cusps -- Beach lamination -- Summary -- CHAPTER 12. STORM SEQUENCES IN SHALLOW WATER -- Introduction -- Two-dimensional steady models of wind effects -- Natural surges and wind-induced currents -- Complex models of wind effects -- Dependence of wind stress on wind speed -- A model of storm sedimentation in shallow waters -- Storm sand-layers in modern sedimentary environments -- Storm sand-layers in the stratigraphic record -- Summary -- CHAPTER 13. MISCELLANEOUS SEDIMENTARY STRUCTURES -- Introduction -- Rill mark -- Tool marks -- Scratch circles -- Corrasion beneath the wind -- Swash and foam marks -- adhesion and rian-impact ripple marks -- Cavernous sand, sand holesm and sand domes -- Mud waves on the deep-ocean floor -- Shrinkage cracks -- Sheet-like sedimentary intrusions -- Ptygmatic folds in desiccation-crack infills and sedimentary dykes -- References -- SUBJECT INDEX (for Volumes I and II).
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