Ophiolites in earth history [some of these papers were presented in thematic ophiolite sessions at the 2001 annual meeting of the Geological Society of America (Boston) and the 2001 Fall meeting of the American Geophysical Union (San Francisco)

The 32 research papers in this volume examine the mode and nature of igneous, metamorphic, tectonic, sedimentological and biological processes associated with the evolution of ophiolites in Earth's history. Divided into six sections, the book presents a wealth of new data and syntheses from ophiolites around the world. The beginning chapter reviews the distribution of ophiolites in space and time and presents a synoptic discussion on their importance in Earth history. Papers in the second section present diverse data from Tethyan ophiolites and provide refined geodynamic models for their evolution. The following two sections present case studies documenting magmatic, metamorphic and tectonic processes in ophiolite genesis and hydrothermal and biogenic alteration of fossil oceanic crust. Mechanisms of ophiolite emplacement are explored in Section V with a focus on the Semail massif (Oman). The last section examines the regional occurrence and geodynamic significance of ophiolite belts on different continents. The book reflects the contemporary work of the international community in a most up-to-date treatment of process-oriented questions on the evolution of ophiolites. Also available: Metasomatism in Oceanic and Continental Lithospheric Mantle - Special Publication No 293 - ISBN 978-1-86239-242-7 European Lithosphere Dynamics - Geological Society Memoirs M0033 - ISBN 9781862392120 The Geological Society of London Founded in 1807, the Geological Society of London is the oldest geological society in the world, and one of the largest publishers in the Earth sciences. The Society publishes a wide range of high-quality peer-reviewed titles for academics and professionals working in the geosciences, and enjoys an enviable international reputation for the quality of its work. The many areas in which we publish in include: -Petroleum geology -Tectonics, structural geology and geodynamics -Stratigraphy, sedimentology and paleontology -Volcanology, magmatic studies and geochemistry -Remote sensing -History of geology -Regional geology guides

twenty Years Have Passed Since Menzies & Hawkesworth Extended The Concept Of Metasomatism To Mantle Processes. The Aim Of This Book Is To Gather Together Progress Made On This Topic Since Then. Most Of The 14 Papers Reported In The Volume Rely On In Situ Major And Trace Element Analyses Of Minerals And Glasses In Mantle Xenoliths, And Deal With Different Kinds Of Metasomatic Agents At Variable Fluid/rock Ratios In Tectonic Settings As Different As Intra-plate, Mid-ocean Ridge (ophiolites) And Supra-subduction. The Book Contributes To The Wide Debate On The Nature Of The Fluids Migrating Into The Mantle Wedge, As Well As On The Different Residential Times Of The Subduction Signature. In Addition Papers On Intra-plate Settings Deal With The Problem Of Relating Various Metasomatic Signatures To One Single Metasomatic Event Through An Infiltration-reaction Process.

The 32 papers in this volume examine the mode and nature of igneous, metamorphic, tectonic, sedimentological, and biological processes associated with the evolution of oceanic crust in different tectonic settings in Earth history as revealed in various ophiolites and ophiolite belts around the world, and the geodynamic significance of these ophiolites in the evolution of different orogenic systems. Divided into six thematic sections, the book presents a wealth of new data and syntheses from mainly Phanerozoic ophiolites around the world