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Окенический рифтогенез - Дубинин Е.П.

Дубинин Е.П., Ушаков С.А. Окенический рифтогенез — М.: ГЕОС, 2001. — 293 c.
ISBN 5-89118-198-3
Скачать (прямая ссылка): okeanicheskiyfotogenez2001.djvu
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562. Wilson D.S., Clague D.A., Sleep N.H., Morion J.L. Implications of magma convection for the size and temperature of magma chambers at fast spreading ridges // Ibid. 1988. Vol. 93. P. 11974.
563. Wilson J.T. A possible origin of the Hawaiian islands // Canad. J. Phys. 1963. Vol. 41. P. 863-870.
564.Wright D.J., Haymon R.M., Fornari D.J. Crustal Assuring and its relationship to magmatic and hydrothermal processes on the East Pacific Rise crest (9° 12' to 54’N) // J. Geoph. Res. 1995. Vol. 100, N B4. P. 6097-6120.
565. Wyllie P.J. Mantle fluid compositions buffered in peridotite C0-H20 by carbonates, amphibole and phlogopite // J. Geol. 1978. Vol. 86. P. 687-713.
566. York D. Evolution of triple junctions // Canad. J. Earth Sci. 1975. Vol. 12. P. 516-519.
567. Yoshii T. Regionality of group velosities of Rayleigh waves in the Pacific and thickening of the plate // Earth Planet. Sci. Lett. 1975. Vol. 25, N 3. P. 305-312.
CONTENTS
INTRODUCTION ..........................................................................9
CHAPTER 1. OCEAN LITHOSPHERE...................................................................... 11
1.1. MORPHOLOGY OF AN OCEAN FLOOR AND GRAVITY FIELD OF WORLD OCEAN............................. 11
1.1.1. Gravity anomalies and ocean floor relief............................................ 13
1.1.2. Morphotectonic structures of an ocean floor from geoid height data.................. 15
1.2. OCEAN CRUST, LITHOSPHERE AND ASTHENOSPHERE .................................. 18
1.3. PLATE TECTONICS, KINEMATICS OF PLATES AND AGE OF AN OCEAN FLOOR.............. 23
1.4. STRUCTURE AND THICKNESS OF AN OCEAN LITHOSPHERE, NATURE OF MID-OCEAN
RIDGES ....................................................................... 36
1.5. MECHANISMS OF LITHOSPHERIC PLATES MOVEMENT................................... 40
CHAPTER 2. MORPHOSTRUCTURE AND DEEP STRUCTURE OF RIFT ZONES ... 49
2.1. A MORPHOSTRUCTURE, TECTONICS AND VOLCANISM OF RIFT ZONES .....................49
2.1.1. Neovolcanic zone ...................................................... 54
2.1.2. Tectonic activity in MOR rift zones and distribution of faults, cracks and fissures. 55
2.2. GEOPHYSICAL RESEARCHES OF RIFT ZONES ..................................................... 58
2.2.1. Gravity anomalies and gravity models of rift zones..................... 58
2.2.2. Magnetic anomalies..................................................... 66
2.2.3. Heat flow.............................................................. 69
2.2.4. Seismicity of rift zones and transform faults.......................... 74
CHAPTER 3. STRUCTURAL DISCONTINUITIES AND SEGMENTATION OF RIFT
ZONES.........................................................................78
3.1. GEODYNAMIC NATURE OF SEGMENTATION OF MOR RIFT ZONES.......................... 78
3.2. TRIPLE JUNCTIONS............................................................. 90
3.2.1. Types and kinematic stability of triple junctions...................... 90
3.2.2. Bouvet triple junction................................................. 93
3.2.3. Rodriguez triple junction.............................................. 94
3.3. TRANSFORM FAULTS............................................................. 97
3.3.1. Geodynamic types of transform faults .................................. 99
3.3.2. Ridge-transform intersection........................................................ Ill
3.4. OVERLAPS AND NON-TRANSFORM OFFSETS OF SPREADING AXIS...................................... 120
3.4.1. Overlapping spreading centers ...................................................... 120
3.4.2. Non-transform offsets of spreading axis............................................. 129
CHAPTER 4. DEEP STRUCTURE OF LITHOSPHERE OF RIFT ZONES AND
GEODYNAMIC NATURE OF THE MAGMA CHAMBER.........................................................140
4.1. THE GEOLOGICAL AND GEOPHYSICAL CHARACTERISTIC OF THE AXIAL
MAGMA CHAMBER ..................................................................................140
4.2. THE EVIDENCES OF PRESENCE OF THE AXIAL MAGMA CHAMBER RECEIVED
ON THE BASIS OF OPHIOLITE STUDIES...............................................................148
4.3. REFLECTION OF THE MAGMATIC CHAMBER IN BY GRAVITY ANOMALIES.....................................150
4.4. THERMO-MECHANICAL MODELS OF GEODYNAMIC PROCESSES IN MOR RIFT
ZONES...........................................................................................151
4.4.1. Change of a thermal state, bottom relief and heat flow of an ocean lithosphere with age .153
4.4.2. Stationary models of temperature distributions and crust accretion in rift zones.........154
4.5. FORMATION AND DEVELOPMENT OF THE MAGMA CHAMBER ................................................ 161
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