Granites (sensu lato) represent the dominant rock-type forming the upper–middle continental crust but their origin remains a matter of long-standing controversy. The granites may result from fractionation of mantle-derived basaltic magmas, or partial melting of different crustal protoliths at contrasting P–T conditions, either water-fluxed or fluid-absent. Consequently, many different mechanisms have been proposed to explain the compositional variability of granites ranging from whole igneous suites down to mineral scale. This book presents an overview of the state of the art, and envisages future avenues towards a better understanding of granite petrogenesis. Particular emphasis of this Volume is on the following topics: Compositional variability of granitic rocks generated in contrasting geodynamic settings during Proterozoic to Phanerozoic Periods, Main permissible mechanisms producing subduction-related granites, Crustal anatexis of different protoliths, and the role of water in granite petrogenesis, New theoretical and analytical tools available for modelling whole-rock geochemistry, in order to decipher the sources and evolution of granitic suites.

Archaean Geochemistry 1972 - 1984 The realisation that the continental crust contains well-preserved relics which date as far back as 4/5 of the Earth's age has given a great impetus to the study of early Precambrian terrains. As late as the mid-sixties the Archaean still constituted the 'terra-in cognita' of earth science. High metamorphic grades, poor out crop, and not least a widely assumed obliteration of early crustal records by convective recycling and thermal reworking had com bined to discourage research in this field. Many excellent local studies existed, notably around gold mining centres, but remained unrelated to a broader regional and theoretical understanding. This situation has changed as the consequence of two inter-related factors: (1) advances in isotopic methods and their application to Precambrian rocks, and (2) the recognition that some of the oldest terrains have retained a wealth of primary igneous and sedi mentary textures and even geochemical characteristics.

Archean Greenstone Belts

Modeled after the 1961 ground-breaking book The Genesis Flood by Drs. Whitcomb and Morris, this detailed work builds on that classic volume with new insights from decades of work by the author, Dr. Andrew Snelling, and numerous colleagues. This recent revolution in geology and the explosion in geological research have established an even firmer basis for understanding the biblical Flood with a God-honoring foundation — the absolute authority and inerrancy of God’s Word. Examine details of the Creation Week as it builds a solid scriptural case for the Flood’s catastrophic nature and global extent. Find decisive answers to many questions about the Flood and Noah’s Ark, its construction, and the animals taken onboard. Delve deeply into astonishing geological details that unfold from the early chapters of Genesis, including the Creation Week and the pre-Flood world. Explore detailed evidence and a concise, informative 30-page color section with diagrams, maps, and more! Dr. Snelling jettisons the faulty evolutionary-uniformitarian assumptions used by most geologists and instead, interprets compelling new geological and observed field data within the biblical framework for the earth’s history. He also demonstrates that fossils were catastrophically buried in sedimentary layers being deposited rapidly on a global scale on the continental plates derived from the violent rifting apart of the original supercontinent. His work demolishes radiometric dating, the icon of the millions of years dogma, and builds a thoroughly powerful case for a young earth that explains many geological features such as varves, evaporites, coal, oil, chalk, granites, and more that biblical skeptics sadly have used to scoff at God’s Word. Discover the powerful truth behind the earth’s most enduring mysteries!

The Treatise on Geochemistry is the first work providing a comprehensive, integrated summary of the present state of geochemistry. It deals with all the major subjects in the field, ranging from the chemistry of the solar system to environmental geochemistry. The Treatise on Geochemistry has drawn on the expertise of outstanding scientists throughout the world, creating the reference work in geochemistry for the next decade. Each volume consists of fifteen to twenty-five chapters written by recognized authorities in their fields, and chosen by the Volume Editors in consultation with the Executive Editors. Particular emphasis has been placed on integrating the subject matter of the individual chapters and volumes. Elsevier also offers the Treatise on Geochemistry in electronic format via the online platform ScienceDirect, the most comprehensive database of academic research on the Internet today, enhanced by a suite of sophisticated linking, searching and retrieval tools.

The main goal of this book is to provide a modern comprehensive statement on the Earth's Precambrian crust. It uses geographic and tectonic location, lithostratigraphy, geochronology, and petrogenesis as a basis for considering Precambrian coastal evolution--including the role of plate tectonics. Detailed consideration is given to the endogenic and exogenic processes which formed the continental crust and also to its subsequent secular evolution across Precambrian time**An essential reference volume for every Precambrian geologist.