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About this book
About this book
Fully revised and updated edition of this exploration of the physics and chemistry of granite generation.
The historical perspective - an ever changing emphasis; the categories of granitic rocks - the search for genetic typology; granite as a chemical system - the experimental impact; the physical nature of granitic magmas - a case of missing information; the evolution of the granitic texture - a continuum of crystal growth; differentiation in granitic magmas - zoning as an example of multifactoral processes at work; the volcano-plutonic interface - not Read's hiatus; the evidence of restite - unmixing as an alternative hypothesis; the mingling and mixing of granite with basalt - a third term on a multiple hypothesis; appinites, diatremes and granodiorites - the interaction of "wet" basalt with granite; controls of upwelling and emplacement - the response of the envelope - balloons, pistons and reality; on the rates of emplacement, crystallization and cooling; plagiogranite and ferrogranophyre - extreme differentiation in contrast sitautions; cordilleran-type batholiths - magmatism and crust formation at a plate edge; intraplate rift-related magmatism - mainly A-type, alkali feldspar granites; migmatites - are they a source of granitic plutons?; the waning stages - the role of volatiles in the genesis of pegmatites and metal ores; the sources of granite magmas in their various global tectonic nches; a kind of conclusion - a search for order among multifactoral processes and multifarious interactions (Part contents).
387 pages, B/w illus, figs, tabs, maps
about the first edition: 'Without doubt, Wallace Pitcher is currently the granite specialist ... an essential book for deep-zone geologists, whether granitologists or not.' Geotechnique '... this excellent and very readable book by an acknowledged master of the craft. The book should be read by anybody interested in granites. It is notable for the breadth of its approach and valuable for presenting the summarized work of a geologist who has made a notable contribution over a lifetime of work.' Journal of Petrology 'This book is a must for all those engaged in the study of granites, and igneous rocks in general, from undergraduates to professors. It is also an essential library addition. In summary, crucial reading for anyone interested in the origin of granite.' Geological Magazine