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Ophiolites Genesis and Evolution of the Oceanic Lithosphere: Proceedings of the Ophiolite Conference, Held in Muscat, Oman, 7–18 January 1990

Proceedings

Series: Petrology and Structural Geology Volume: 5

By: Tj Peters(Editor), Adolphe Nicolas(Editor), RG Coleman(Editor)

Kluwer Academic Publishers

Paperback | Nov 2012 | #237397 | ISBN-13: 9789401054843
Availability: Usually dispatched within 1 week Details
NHBS Price: £44.99 $59/€50 approx
Hardback | Dec 1991 | #15457 | ISBN: 0792311760
Availability: Usually dispatched within 2-3 weeks Details
NHBS Price: £44.99 $59/€50 approx

About this book

These are the proceedings of the Ophiolite Conference, held in Muscat, Oman, January 1990, which was attended by some 300 participants from 27 countries. The symposium brought together marine geophysicists and other investigators of recent oceanic lithosphere, and field geologists working on ophiolite belts. This volume represents a wide spectrum of topics covered in the Symposium, and is divided into the following sections: Processes at Spreading Centers, Magmatic Ores, Hydrothermalism, Tectonics of Emplacement and Metamorphism, Palaeogeographic Setting of the Oman Ophiolite, Palaeoenvironment of Other Ophiolites, and Mapping Ophiolites. The first section is subdivided into processes occurring either in the crust or in the mantle.


Contents

I: Processes at Spreading Centers
A) Crust
- Ridge Crest Magma Chambers: A Review of Results from Marine Seismic Experiments at the East Pacific Rise
- Accommodation Zones and Transfer Faults: Integral Components of Mid-Atlantic Ridge Extensional Systems
- Rooting of the Sheeted Dike Complex in the Oman Ophiolite
- Diabase Dikes Emplacement in the Oman Ophiolite: A Magnetic Fabric Study with Reference to Geochemistry
- Geometry and Flow Pattern of the Plutonic Sequence of the Salahi Massif (Northern Oman Ophiolite) - A Key to Decipher Successive Magmatic Events
B) Mantle
- The Upward Migration of Self-Convecting Magma Bodies
- Melt Migration and Depletion - Regeneration Processes in Upper Mantle of Continental and Ocean Rift Zones
- Evidences for a Paleo-Spreading Center in the Oman Ophiolite: Mantle Structures in the Maqsad Area
- Structural and Petrological Features of Peridotite Intrusions from the Troodos Ophiolite, Cyprus
- Evolutional History of the Uppermost Mantle of an Arc System: Petrology of the Horman Peridotite Massif, Japan

II: Magmatic Ores
- Cu-Ni-PGE Magmatic Sulfide Ores and their Host Layered Gabbros in the Haymiliyah Fossil Magma Chamber (Haylayn Block, Semail Ophiolite Nappe, Oman)
- Platinum-Group Elements and Gold in Ophiolitic Complexes: Distribution and Fractionation from Mantle to Oceanic Floor
- Chromite-Rich and Chromite-Poor Ophiolites: The Oman Case
- Diamonds: the Oceanic Lithosphere connection with Special Reference to Beni Bousera, North Morocco

III: Hydrothermalism
- Lithospheric Stretching and Hydrothermal Processes in Oceanic Gabbros from Slow-Spreading Ridges
- Evidences for Polyphased Oceanic Alteration of the Extrusive Sequence of the Semail Ophiolite from the Salahi Block (Northern Oman)
- A Geochemical Study of a Fossil Oceanic Hydrothermal Discharge Zone in the Oman Ophiolite (Zuha Sulphide Prospect): Evidence for a Polyphased Hydrothermal History
- Lead Isotope Geochemistry of Various Sulphide Deposits from the Oman Mountains
- Hydrothermal Metamorphism in Oceanic Crust from the Coast Range Ophiolite of California: Fluid-Rock Interaction in a Rifted Island Arc
- A Sulfur Isotopic Profile Through the Troodos Ophiolite, Cyprus: Preliminary Results and Implications

IV: Tectonics of Emplacement and Metamorphism
- Obduction Versus Subduction and Collision in the Oman Case and other Tethyan Settings
- The Obduction of the Northern Oman Ophiolite - Crustal Loading and Flexure
- Amagmatic Extension and Tectonic Denudation in the Kizildag Ophiolite, Southern Turkey: Implications for the Evolution of Neotethyan Oceanic Crust
- Process of Ophiolite Emplacement in Oman and Newfoundland
- Sr, Nd and Pb Isotopic Constraints in the Genesis of a Calc-Alkaline Plutonic Suite in Oman Ophiolite Related to the Obduction Process
- Mineral Equilibria in Metagabbros: Evidence for a Polymetamorphic Evolution of the Asimah Window, Northern Oman Mountains, United Arab Emirates

V: Palaeogeographic Setting of the Oman Ophiolite
- Al Aridh Formation, Oman: Stratigraphy and Palaeogeographic Significance
- Igneous Rocks in the Hawasina Nappes and the Hajar Supergroup, Oman Mountains: Their Significance in the Birth and Evolution of the Composite Extensional Margin of Eastern Tethys
- The Uplift History of the Precambrian Crystalline Basement of the Jabal J'alan (Sur Area)
- Meta-Carbonatites in the Metamorphic Series Below the Semail Ophiolite in the Dibba Zone, Northern Oman Mountains
- Chert-Hosted Manganese Deposits in the Wahrah Formation: A Depositional Model
- Tertiary Basaltic Intrusions in the Central Oman Mountains

VI: Palaeoenvironment of Other Ophiolites
- Geology, Geochemistry, and the Evolution of an Oceanic Crustal Rift at Sithonia, NE Greece
- Upper Triassic-Early Jurassic Sedimentary Breccias in the Ophiolitic Suite of the Lesser Caucasus
- Origin of Volcanics in the Tethyan Suture Zone of Pakistan
- Time-Space Distribution and Petrologic Diversity of Japanese Ophiolites
- Tectonostratigraphic Relationships and Obduction Histories of Scandinavian Ophiolite Terranes
- Genesis and Emplacement of the Supra-Subduction Zone Pindos Ophiolite, Northwestern Greece
- The Circum-Izu Massif Peridotite, Central Japan, as Back-Arc Mantle Fragments of the Izu-Bonin Arc System
- Geology and Chemistry of the Early Proterozoic Purtuniq Ophiolite, Cape Smith Belt, Northern Quebec, Canada

VII: Mapping Ophiolites
- The Use of Digitally Processed Spot Data in the Geological Mapping of the Ophiolite of Northern Oman
- Comparison Between Mapping at 1:25000 Scale and Decorrelation Stretched Landsat Thematic Mapper Images in the Wuqbah Block (Oman Mountains)


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