Field Geology of High-Grade Gneiss Terrains

Field Geology of High-Grade Gneiss Terrains

Author: Cees W. Passchier

Publisher: Springer Science & Business Media

ISBN: 9783642760136

Category: Science

Page: 150

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Although there are numerous publications on the geology of high-grade gneiss terrains, few descriptions exist of how to map and carry out structural analysis in these terrains. Textbooks on structural geology concentrate on technIques appli cable to low-grade terrains. Geologists who have no experience of mapping high-grade gneisses are often at a loss as to how to apply techniques to high grade rocks that were developed for low to medium grade metamorphic terrains. Any study of deep crustal processes and their development through time should begin with examination of the primary data source - outcrops of high grade metamorphic terrains. We feel that the urge to apply advanced techniques of fabric analysis, petrology, geochemistry, isotope geochemistry and age deter mination to these rocks often results in brief sampling trips in which there is little, if any analysis of the structural and metamorphic history revealed by outcrop patterns. Many studies of the metamorphic petrology and geochemistry of high-grade gneiss terrains make ineffective use of available field data, often because the authors are unaware of structural complexities and of the ways to recognise and use them. This is unfortunate, because much data can be collected in the field at minimal cost that cannot easily, if at all, be obtained from material in the laboratory. The primary igneous or sedimentary nature of a rock, the relative age of intrusive veins, and the sequence of deformation that they under went, can usually best be determined by straightforward observation in the field.
Field Geology of High-Grade Gneiss Terrains
Language: en
Pages: 150
Authors: Cees W. Passchier, John S. Myers, Alfred Kröner
Categories: Science
Type: BOOK - Published: 2012-12-06 - Publisher: Springer Science & Business Media

Although there are numerous publications on the geology of high-grade gneiss terrains, few descriptions exist of how to map and carry out structural analysis in these terrains. Textbooks on structural geology concentrate on technIques appli cable to low-grade terrains. Geologists who have no experience of mapping high-grade gneisses are often
Field Geology of High-Grade Gneiss Terrains
Language: en
Pages: 150
Authors: Cees W. Passchier, John S. Myers, Alfred Kröner
Categories: Science
Type: BOOK - Published: 2012-03-14 - Publisher: Springer

Although there are numerous publications on the geology of high-grade gneiss terrains, few descriptions exist of how to map and carry out structural analysis in these terrains. Textbooks on structural geology concentrate on technIques appli cable to low-grade terrains. Geologists who have no experience of mapping high-grade gneisses are often
Canadian Journal of Earth Sciences
Language: en
Pages:
Authors: Cees W. Passchier, John S. Myers, Alfred Kröner
Categories: Geology
Type: BOOK - Published: 2010 - Publisher:

Books about Canadian Journal of Earth Sciences
Advances in Precambrian of Central India
Language: en
Pages: 542
Authors: Cees W. Passchier, John S. Myers, Alfred Kröner
Categories: Geology
Type: BOOK - Published: 2003 - Publisher:

Papers presented at the National Symposium on Advances in Precambrian Geology and Mineral Resource Modelling of Central India, held at Nagpur during 17-18 October 2003.
Bulletin - Geological Survey of Canada
Language: en
Pages:
Authors: Geological Survey of Canada
Categories: Geology
Type: BOOK - Published: 1998 - Publisher:

Books about Bulletin - Geological Survey of Canada