W. S. Pitcher

The Nature and Origin of Granite (eBook, PDF)

• Format: PDF

Produktbeschreibung

The origin of granite has for long fascinated geologists though serious debate on the topic may be said to date from a famous meeting of the Geological Society of France in 1847. My own introduction to the subject began exactly one hundred years later when, in an interview with Profes sor H. H. Read, I entered his study as an amateur fossil collector and left it as a committed granite petrologist - after just ten minutes! I can hardly aspire to convert my reader in so dramatic a way, yet this book is an attempt, however inadequate, to pass on the enthusiasm that I inherited, and which has been reinforced by innumerable discussions on the outcrop with granitologists of many nationalities and of many shades of opinion. Since the 1960s, interest in granites has been greatly stimulated by the thesis that granites image their source rocks in the inaccessible deep crust, and that their diversity is the result of varying global tectonic context. So great a body of new data and new ideas has accumulated that my attempt to review the whole field of granite studies must carry with it a possible charge of arrogance, especially as I have adopted the teaching device of presenting the material from a personal point of view with its thinly disguised prejudices.

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Produktdetails

• Verlag: Springer Netherlands
• Seitenzahl: 387
• Erscheinungstermin: 6. Dezember 2012
• Englisch
• ISBN-13: 9789401158329
• Artikelnr.: 44183871

Inhaltsangabe

1 The historical perspective: an ever changing emphasis.- 2 The categories of granitic rocks: the search for a genetic typology.- 3 Granite as a chemical system: the experimental impact.- 4 The physical nature of granitic magmas: a case of missing information.- 5 The evolution of the granitic texture: a continuum of crystal growth.- 6 Differentiation in granitic magmas: zoning as an example of multifactorial processes at work.- 7 The volcano-plutonic interface: not Read's hiatus.- 8 The evidence for restite: unmixing as an alternative hypothesis.- 9 The mingling and mixing of granite with basalt: a third term in a multiple hypothesis.- 10 Appinites, diatremes and granodiorites: the interaction of 'wef'basalt with granite.- 11 Controls of upwelling and emplacement: the response of the envelope: balloons, pistons and reality.- 12 On the rates of emplacement, crystallization and cooling.- 13 Plagiogranite and f errogranophyre: extreme differentiation in contrasted situations.- 14 Cordilleran-type batholiths: magmatism and crust formation at a plate edge.- 15 Intraplate, rift-related magmatism: mainly the A-type, alkali feldspar granites.- 16 Migmatites: are they a source of granitic plutons?.- 17 The waning stages: the role of volatiles in the genesis of pegmatites and metal ores.- 18 The sources of granitic magmas in their various global tectonic niches.- 19 A kind of conclusion: a search for order among multifactorial processes and multifarious interactions.

Rezensionen

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