Evolution of Mid Ocean Ridges

Tongue: English
Leaves: 82
Category: Library

No coin nor oath required. For personal study only.

✦ Synopsis

About The Product

Published by the American Geophysical Union as part of the Geophysical Monograph Series.

This volume is an outgrowth of IUGG Union Symposium 9 held during the 1987 IUGG General Assembly at Vancouver, Canada. This symposium, jointly sponsored by IAVCEI, IASPEI, ICL and IAGA, consisted of 31 presentations ranging in subject matter from melt segregation and melt focusing processes beneath mid-ocean ridges, to the structures of oceanic crust and ophiolite analogues, morphological variations in the accretion process, the structural evolution of specific spreading ridge systems, the interplay between magmatism and rifting, and the chemical and thermal balances involved in mid-ocean ridge hydrothermal systems. Six of those papers have been expanded in the present volume.

Content:

✦ Table of Contents

Evolution of Mid Ocean Ridges......Page 4
CONTENTS......Page 6
PREFACE......Page 7
Evolution of Mid Ocean Ridges......Page 8
Introduction......Page 9
Fractures, Fabric, and Velocity Variation......Page 10
Velocity Gradients and Vertical Anisotropy......Page 11
Age Dependence......Page 12
Shear Waves and Poisson's Ratio......Page 13
Discussion......Page 14
References......Page 15
A. Seismic Slip Vectors......Page 17
C. Magnetics......Page 18
A. Methods......Page 21
B. Assessment of Rates Obtained from Magnetic Modeling......Page 26
D. Speed Limit for the Existence of a Transform Fault......Page 27
B. Assessment of the Relative Motion Models......Page 28
C. Results......Page 31
A.Methods......Page 32
C. Results......Page 33
Triple Junction Analysis......Page 34
Microplate Rigidity......Page 35
References......Page 36
Kinematic Constraints......Page 39
Ridge Evolution Model......Page 40
Two-plate Hotspot Model......Page 41
"Warm Spot" Model......Page 42
References......Page 45
Introduction......Page 46
Tectonic setting of the Fe-Ti basalts......Page 47
Chemistrayn dp etrologoyf the Fe-Ti basalts......Page 48
Liquid lines of descent......Page 49
Experimental constraints......Page 50
Origin of the Fe-Ti basalts......Page 54
References......Page 57
Morphology......Page 59
The Summit......Page 60
Caldera Walls......Page 62
Caldera Floor......Page 64
Petrology of Basalts......Page 66
Geological Evolution......Page 68
References......Page 69
1. Introduction......Page 70
2. Data......Page 71
3. Dyke Injection and Horizontal Displacements......Page 72
4. Deep Flow - Gravity and Elevation Changes......Page 74
5. Speculations on the Sub-Icelandic Plumbing System......Page 80
References......Page 81

📜 SIMILAR VOLUMES

Mid-Ocean Ridges

📁 Mid-Ocean Ridges

📂 Library 📅 2004 🏛 American Geophysical Union 🌐 English

Published by the American Geophysical Union as part of the Geophysical Monograph Series.Mid-ocean ridges play an important role in the plate-tectonic cycle of our planet. Extending some 50–60,000 km across the ocean-floor, the global mid-ocean ridge system is the site of creation of

Mid-Ocean Ridges

📁 Mid-Ocean Ridges

✍ Searle R. 📂 Library 📅 2013 🏛 Cambridge University Press 🌐 English

The world's mid-ocean ridges form a single, connected global ridge system that is part of every ocean, and is the longest mountain range in the world. Geologically active, mid-ocean ridges are key sites of tectonic movement, intimately involved in seafloor spreading. This coursebook presents a multi

Mid-ocean ridges: dynamics of processes

📁 Mid-ocean ridges: dynamics of processes associated with creation of new ocean crust

✍ Johnson Robin Cann 📂 Library 📅 1999 🏛 Cambridge University Press 🌐 English

This book collects multidisciplinary chapters on the most important problems that arise at mid-ocean ridges. The mid-ocean ridge system is the longest continuous feature of the earth's surface. It is where the great majority of ocean floor is created and volumes of seafloor volcanism vastly exceed t

Faulting and Magmatism at Mid-Ocean Ridg

📁 Faulting and Magmatism at Mid-Ocean Ridges

📂 Library 📅 1998 🏛 American Geophysical Union 🌐 English

Published by the American Geophysical Union as part of the Geophysical Monograph Series. Seafloor spreading at mid-ocean ridges was recognized more than 30 years ago as the key which unlocked the plate tectonic revolution. Ridges are not only the locus of the most voluminous magmatic a

The Subseafloor Biosphere at Mid-Ocean R

📁 The Subseafloor Biosphere at Mid-Ocean Ridges

📂 Library 🌐 English

Content:

Tectonic, magmatic, hydrothermal and bio

📁 Tectonic, magmatic, hydrothermal and biological segmentation of mid-ocean ridges

✍ C. J. MacLeod, P. A. Tyler, C. L. Walker 📂 Library 📅 1996 🏛 Geological Society 🌐 English

We now recognize that mid-ocean ridges are not simple, two-dimensional features, but are instead partitioned into morphologically distinct segments on a variety of scales. Variations in axial morphology reflect differences in the structure of the magma reservoirs and in the nature of mantle upwellin