has done more to advance and apply sedimentology than any other branch of industrial geology. Critical readers will notice that metres, feet, kilometres, and miles are used indiscriminately throughout the book. Since the oil industry refuses to go metric, the student must quickly learn to correlate the two systems. A conversion scale is included in the first figure. January, 1970 RICHARD C. SELLEY Tripoli, Libya Preface to the second edition I began to write the first edition of this book after spending nearly ten years at university studying and teaching how to diagnose the depositional environments of sedimentary rocks where they crop out at the earth's surface. The first edition was written during the first three months of my five-year sabbatical in the oil industry. From then on a very large part of my time has been spent learning how to diagnose the environments of sediments from bore holes in the sub-surface. This is a far more challenging occupation for there are fewer data, the techniques are quite different, and the economic implications may be immense. The new edition reflects this experience. The introductory chapter includes a -discussion of the techniques of sub-surface facies analysis, and subsequent chapters discuss the criteria by which each environment may be recognized in the sub-surface. Most of the chapters have been modified in one way or another; sections on modern environments have been expanded and some of the case histories have been extensively modified and, for the Captain 'reef', completely rewritten.
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1 Introduction.- Sedimentary environments and facies.- Relationship
between facies, sequences and stratigraphy.- Methods of environmental
diagnosis.- Geometry.- Lithology.- Sedimentary structures.- Palaeocurrent
patterns.- Fossils.- Sub-surface environmental interpretation.-
Interpretation of vertical grain size profiles from geophysical logs.- The
use of the dipmeter in sub-surface facies analysis.- Summary.- References.- 2
River Deposits.- Introduction: Recent alluvium.- Alluvium of meandering
rivers.- Alluvium of braided rivers.- The Torridon Group (PreCambrian) of
northwest Scotland: description and discussion.- Basal facies: description.-
Basal facies: interpretation.- Grey facies: description.- Grey facies:
interpretation.- Red facies: description.- Red facies: interpretation.-
Devonian sediments of south Wales and the Catskill Mountains, USA:
description.- Devonian sediments of south Wales and the Catskill Mountains,
USA: interpretation.- Discussion.- Economic aspects.- Sub-surface diagnosis
of fluvial deposits.- Sub-surface diagnosis of braided fluvial deposits.-
Sub-surface diagnosis of meandering fluvial deposits.- References.- 3
Wind-Blown Sediments.- Recent eolian sediments.- Eolian deposits of Western
USA: description.- Eolian sandstones of Western USA: discussion.- General
discussion of eolian sediments.- Economic significance of eolian deposits.-
Sub-surface diagnosis of eolian deposits.- References.- 4 Lake Deposits.-
Recent lakes.- The Green River Formation (Eocene) Rocky Mountains, USA:
description.- Green River Formation: discussion of environment.- General
discussion of ancient lake deposits.- Economic aspects.- Sub-surface
diagnosis of lacustrine deposits.- References.- 5 Deltas.- Shorelines: a
general statement.- Recent deltas.- Carboniferous deltaic sedimentation of
Northern England.- Type 1: description.- Type 1: interpretation.- Type 2:
description.- Type 2: interpretation.- General discussion of deltaic
sedimentation.- Economic significance of deltaic deposits.- Sub-surface
diagnosis of deltaic deposits.- References.- 6 Linear Terrigenous
Shorelines.- Introduction: Recent linear terrigenous shorelines.- Cretaceous
shorelines of the Rocky Mountains, USA: description.- Coal-bearing facies.-
Sheet sand facies.- Laminated shale facies.- Cretaceous shorelines of the
Rocky Mountains, USA: interpretation.- General discussion of linear
terrigenous shorelines.- Economic significance of linear terrigenous
shorelines.- Regressive sand sheets.- Transgressive sand sheets.- Shoestring
barrier sands.- Sub-surface diagnosis of barrier sands.- References.- 7 Mixed
Terrigenous: Carbonate Shorelines.- A Libyan Miocene shoreline: description
and discussion.- Skeletal limestone facies.- Laminated shale facies.-
Interlaminated sand and shale facies.- Cross-bedded sand and shale facies.-
Calcareous sandstone channel facies.- General discussion of the Miocene
shoreline of the Sirte basin.- General discussion and economic aspects.-
References.- 8 Shelf Deposits: Carbonate and Terrigenous.- Introduction: a
general theory of shelf sea sedimentation.- Mississippian (Lower
Carboniferous) deposits of the Williston basin, North America: description.-
Charles facies.- Mission Canyon facies.- Lodgepole facies.- Mississippian
(Lower Carboniferous) sediments of the Williston basin, North America:
interpretation.- Discussion of carbonate shelf sediments.- Terrigenous shelf
deposits.- Economic aspects.- Sub-surface diagnosis of shelf deposits.-
References.- 9 Reefs.- Summary of Recent reefs.- Permian reefs of West Texas:
description.- Permian reefs of West Texas: discussion.- Leduc (Devonian)
reefs of Canada: description.- Leduc (Devonian) reefs of Canada:
interpretation.- The Bu Hasa reef oil field, Abu Dhabi: description.- The Bu
Hasa reef oil field, Abu Dhabi: interpretation.- General discussion of
reefs.- Factors controlling reef geometries and facies.- The reef: evaporite:
euxinic shale association.- Diagenesis of reefs.- Economic geology of ancient
reefs.- Sub-surface diagnosis of reefs.- References.- 10 Deep Sea Sands.-
Deep sea sands defined.- Diagnostic characteristics of turbidites.- Recent
deep sea sands.- Discussion of origin of turbidites.- Upper Jurassic deep sea
sands of Sutherland, Scotland: description.- Upper Jurassic deep sea sands of
Sutherland, Scotland: interpretation.- Description of the Annot trough
flysch, Alpes Maritimes.- Discussion of the Annot trough sandstones.- Deep
sea sands: concluding discussion.- Economic aspects of flysch and
turbidites.- Sub-surface diagnosis of deep sea sands.- References.- 11
Pelagic Deposits.- Introduction: Recent pelagic deposits.- Triassic-Jurassic
deposits of the Meditteranean: description.- Clay shales, marls, and micritic
limestones.- Radiolarian cherts.- Nodular red limestones.- Triassic-Jurassic
deposits of the Meditteranean: interpretation.- General discussion of pelagic
deposits.- Economic significance of deep-sea deposits.- References.- 12
Conclusions.- Sedimentary models: mythical and mathematical.- Sedimentary
models: mythical.- Sedimentary models: mathematical.- References.- Author
Index.
