Keywords:
Sedimentary structures.
;
Sedimentation and deposition.
;
Sedimentary rocks.
;
Electronic books.
Description / Table of Contents:
Sedimentary structures, their character and physical basis Volume 1.
Type of Medium:
Online Resource
Pages:
1 online resource (613 pages)
Edition:
1st ed.
ISBN:
9780080869438
Series Statement:
Issn Series ; v.Volume 30A
URL:
https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=405222
DDC:
552/.5
Language:
English
Note:
Front Cover -- Sedimentary Structures: Their Character and Physical Basis -- Copyright Page -- Contents -- GENERAL PREFACE AND INTRODUCTION TO VOLUME I -- Chapter 1. ENVIRONMENTAL FLUID DYNAMICS -- Introduction -- Natural fluids and solids -- Sedimentation: environments, agents and products -- Boundary layers on a rotating Earth -- Separation of flow -- Mass flows -- Water in rivers and ice tunnels -- The atmosphere in motion -- Surface and internal waves -- Gravity currents -- Summary -- Chapter 2. ENTRAINMENT AND TRANSPORT OF SEDIMENTARY PARTICLES -- Intodurction -- Shape and size of sedimentary particles -- Sedimentary particles in bulk -- Particle entrainment from cohesionless beds -- Erosion of cohesive beds -- Particle settling -- Some general concepts of sediment transport -- Forces acting on transported particles -- Modes of sediment transport and particle motion -- Equilibrium sediment transport -- Sediment transport and deposition in verying flows -- Unusual modes of sediment transport -- Summary -- Chapter 3. PARTICLE MOTIONS AT LOW CONCENTRATIONS: GRADING IN PY- ROCLASTIC-FALL DEPOSITS -- Introduction -- Pyroclastic debris -- Classification of explosive volcanic eruptions -- Thickness changes in pyroclastic-fall deposits -- Vertical grading -- Lateral grading -- Models for the distribution of volcanic ejecta -- Bomb sags -- Summary -- Chapter 4. PACKING OF SEDIMENTARY PARTICLES -- Introduction -- Some definitions -- Ordered sphere packings -- Ordered spheroid packings -- Ordered packings of other regular shapes -- Random sphere packings -- Wall and related effects -- Haphazard packings -- Effects of mode of deposition and material properties on the packing of cohesionless particles -- Summary -- Chapter 5. ORIENTATION OF PARTICLES DURING SEDIMENTATION: SHAPE-FABRICS -- Introduction -- Measurement and representation of shape-fabrics.
,
Shape-fabrics due to settling in the field of gravity -- Shape-fabrics due to translation in shear flows -- Shape-fabrics due to translation in pure shear -- Shape-fabrics of flows of densely arrayed particles -- Preferred orientations of particles lodging on a horizontal bed -- Shape-fabrics of muddy sediments -- Summary -- Chapter 6. TRANSITION TO TURBULENCE AND THE FINE STRUCTURE OF STEADY TURBULENT BOUNDARY LAYERS: PARTING LINEATION AND RELATED STRUCTURES -- Introduction -- Outline of techniques -- Transition to turbulence -- Changes in velocity profile -- Sedimentary structures and transition configurations -- Flow configurations of turbulent boundary layers -- General effects of streaks on deformable beds -- Parting lineation -- Longitudinal grooves in mud beds -- Summary -- Chapter 7. MODELS OF TRANSVERSE BEDFORMS IN UNIDIRECTIONAL FLOWS -- Introduction -- Chief transverse bedforms -- Physical models of transverse bedforms -- Mathematical models of erodible bed stability: the two-dimensional case -- Mathematical models of erodible bed stability: the three-dimensional case -- Bed-wave shape and size -- Statistical analysis of bedforms -- Summary -- Chapter 8. EMPIRICAL CHARACTER OF RIPPLES AND DUNES FORMED BY UNIDIRECTIONAL FLOWS -- Introduction -- Morphological analysis -- Ballistic ripples -- Currentripples -- Dunes shaped by wind -- Dunes shaped by flowing water -- Indivisibility of dunes -- Bedform existence fields for aqueous environments -- Summary -- Chapter 9. CLIMBING RIPPLES AND DUNES AND THEIR CROSS- STRATIFICATION PATTERNS -- Introduction -- Nomenclature and classification of cross-stratification -- General principles of cross-stratification -- Transcurrent lamination -- Subcritical cross-stratification -- Supercritical cross-lamination -- Compound cross-stratification -- Vertical patterns of cross-stratification.
,
Internal structures, grain size, and stream power in water-laid deposits -- Summary -- Chapter 10. BEDFORMS IN SUPERCRITICAL AND RELATED FLOWS: TRANSVERSE RIBS, RHOMBOID FEATURES, AND ANTIDUNES -- Introduction -- Energy considerations and transverse ribs -- Momentum considerations and rhomboid bed features -- Supercritical flows and antidunes -- Summary -- Chapter 11. TRANSVERSE BEDFORMS IN MULTIDIRECTIONAL FLOWS: WAVE-RELATED RIPPLE MARKS, SAND WAVES, AND EQUANT DUNES -- Introduction -- Classification of current patterns -- Wave ripple marks -- Wave-current ripple marks -- Wave-related ripple marks with multiple-parallel crests -- Wave ripple marks in brick and tile patterns -- Controls on wave-related ripple marks -- Sand waves -- Equant dunes -- Summary -- Chapter 12. RIPPLES AND DUNES IN CHANGING FLOWS -- Introduction -- What is changing? -- Dune populations in unsteady flows -- Bedform populations and dynamical systems theory -- Numerical modelling of dune populations -- Structures indicative of changing river flows -- Structures indicative of changing tidal and wind-wave regimes -- Bedforms and internal structures in changing aeolian environments -- Summary -- REFERENCES.
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