Strain facies
著者
書誌事項
Strain facies
（Minerals, rocks and inorganic materials, 2）
Springer-Verlag, 1971
- : U.S.
- : Germany
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注記
Bibliography: p. [185]-188
内容説明・目次
内容説明
This series of monographs represents continuation on an inter- nationai basis of the previous series MINERALOGIE UND PETRO- GRAPHIE IN EINZELDARSTELLUNGEN, published by Sprin- ger-Verlag. The voluminous results arising from recent progress in pure and applied research increase the need for authoritative reviews but the standard scientific journals are unable to provide the space for them. By their very nature, text-books are unable to consider specific topics in depth and recent research methods and results often receive only cursory treatment. Advanced reference volumes are usually too detailed except for experts in the field. It is often very expensive to purchase a symposium volume or an "Advances in . . " volume for the sake of a specific review chapter surrounded by unrelated chapters. We hope that this monograph series will by- pass these problems in fulfilling the need. The purpose of the series is to publish reviews and reports of carefully selected topics written by carefully selected authors, who are both good writers and experts in their scientific field. In general, the monographs will be concerned with the most recent research methods and results.
The editors hope that the monographs will serve several functions, acting as supple- ments to existing text-books, guiding research workers, and providing the basis for advanced seminars. March 1971 W. VON ENGELHARDT, Tiibingen T. HAHN, Aachen R. Roy, University Park, Pa. J. W. WINCHESTER, Tallahassee, Fla. P. J. WYLLIE, Chicago, III. Contents 1 I. Introduction Sketch of Trollheimen 4 Acknowledgments . .
目次
- I. Introduction.- Sketch of Trollheimen.- Acknowledgments.- II. Twelve Properties of Mesoscopic Folds.- Definitions.- Properties of an Individual Fold.- 1. Type of Geometry.- 2. Nature of Hinge and Limbs.- 3. Ratio of Short-Limb Height to Width.- 4. Ratio of Depth to Width.- 5. Length and Character of Hinge Line.- 6. Cylindricity.- 7. Relation to Cleavage.- 8. Relation to Mineral Lineation.- Properties of a Group of Folds.- 9. Mean and Standard Deviation of Ratios of Short-Limb Height to Width.- 10. Mean of Ratios of Depth to Width.- 11. Preferred Orientation of Fold Axes.- 12. Asymmetry.- Names of Folds According to Style.- III. Methods of Deducing Slip-Line Orientations from the Geometry of Folds.- Slip Folding of a Preexisting Straight Lineation.- Interference Structures from Superposed Slip Folds.- Asymmetry and the Separation Angle.- Flexural-Slip Folds in Planar Layers.- Tundra Landslide.- General Analysis.- Slip Folds in Planar Layers.- Superposed Slip Folds of a Single Order
- the Hinge-Line Node.- Superposed Slip Folds of Multiple Orders.- Use of the Separation Angle.- IV. Geometric Types of Flow.- Definitions.- Correlation with Strain Features.- V. Trollheimen's Rock Units.- VI. The Sahlfold Fades.- Macroscopic Folds in Riar Basin.- Mesoscopic Structures in Riar Basin.- Mineral Lineation.- Elongate Augen.- Boudinage.- Sahlfolds.- Tubular Folds: Interference Structures.- Area A.- Area B.- Area C.- Comparison of Data.- Implications for Sahlfolding.- The Form of Riar Basin.- Anticline Hypothesis.- Synform Hypothesis.- Choice of the Synform Hypothesis.- Flow Environment of the Sahlfold Facies.- Essential Characteristics of the Flow.- Relative Orientations of Fabric and Kinematic Axes.- Subordinate Characteristics of the Flow.- Remarks on the Mechanism of Sahlfold Development Ill.- VII. The Norfold Facies.- Norfolds.- Spatial Relations of Norfolds in Trollheimen.- Configuration of Axial Surfaces.- Comparison of Norfold Orientations with Earlier.- Structures.- Axial Surfaces
- the Asymmetry of Norfolds.- Fold Axes.- Conclusions on Norfold Affinities.- Rotation Paths of Early Lineations.- Six Folds in Area F.- Summary of Relationships in Nine Areas.- Mechanisms of Norfold Development.- Mean Slip-Line Orientations.- Kinematic Significance of Fold Axes and Zone.- Axes of Axial Surfaces.- Regional Pattern of Slip-Line Orientations.- Flow Environment of the Norfold Facies.- Restrictions from the Configuration of Riar Basin...- Other Considerations.- VIII. The Discfold Facies.- Macroscopic Structures of the Svaho Border Zone.- Faults and the Zone Boundaries.- The Hammerho Synform.- A System of Flexures.- Mesoscopic Structures in the Svah0 Border Zone.- The Regional Mineral Lineation.- Elongate Augen.- Boudinage.- Hammerho Synform Folds.- Lang Tjern Folds.- Hogho Folds.- Interference Structures.- Discfolds.- Mode of Discfold Development.- Slip-Line Orientations in the Svaho Border Zone.- Discfold Movement.- Other Movement.- Summary of Relationships between Fabric and Kinematics.- Nappe Emplacement.- Flow Environment of the Discfold Facies.- Relative Orientations of Fabric and Kinematic Axes.- Flow Characteristics.- IX. The Concept of Strain Facies.- Comparison of Three Fold Types.- Sahlfolds and Discfolds.- Norfolds and Discfolds.- Sahlfolds and Norfolds.- Rationale for Strain Facies.- Some General Remarks.- References.- Author and Subject Index.
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