Geodynamics of the Eastern Pacific Region, Caribbean and Scotia Arcs

Title Page......Page 3
Copyright......Page 4
Contents......Page 5
Foreword......Page 6
Constitution and Activity of Wg2
......Page 8
Summary Comments......Page 9
The Ridge......Page 10
The Plate System......Page 15
Hot Spots and Sea-mounts......Page 17
Major Triple Junctions......Page 18
Convergence at the Continental Margin......Page 19
The Arc-Trench Gap......Page 20
The Volcanic Arc......Page 21
Summary Comments......Page 22
Bibliography......Page 24
References......Page 27
Introduction......Page 30
Magnetism and Paleomagnetism
......Page 31
Metamorphic and Plutonic Rocks
......Page 32
Recent Volcanics......Page 33
Metallogenesis......Page 34
Introduction......Page 36
Selected Bibliography......Page 40
Geophysical Investigations......Page 43
Geological and Geotectonic Studies
......Page 48
References......Page 52
Physiography......Page 55
Stratigraphy......Page 57
Structural Geology......Page 58
Volcanism......Page 60
Gravimetry......Page 61
Geotectonics......Page 63
References......Page 64
BOLIVIAN GEOLOGICAL GEOTRAVERSE......Page 66
Subducted Nazca Plate......Page 74
Crust and Upper Mantle
......Page 76
References......Page 77
Orogenic Cycles......Page 78
References......Page 81
Introduction......Page 83
Part I: Crustal Structure, Composition and Tectonics of East Pacific Rise andNazca Plate......Page 84
Composition of Nazca Plate Basalts......Page 85
Origin and Distribution of Metalliferous Sediment......Page 87
Crustal Structure, Stratigraphy and Tectonics, of the Andean Forearc and Trench......Page 89
Part II: Future Areas of Research......Page 90
References......Page 92
Introduction......Page 95
Deep Seismic Sounding......Page 97
Gravity......Page 99
Electical Conductivity......Page 102
Two Benioff Zone Model......Page 104
Crust- Upper Mantle Dynamics Model......Page 107
Kinematics of the Last 14 my......Page 108
Comparison With Other Models......Page 109
References......Page 111
Global Plate Reconstruction Methods......Page 113
References......Page 124
Part One: Advances in Geotectonic Knowledge......Page 126
Part Two: Advances in Geophysical Knowledge......Page 129
References......Page 132
A. Introduction......Page 135
B. Tectonic Setting and Geologicalevolution......Page 136
C. Geodynamic Processes......Page 150
References and Geodynamics Bibliography
......Page 160