Preliminary Geological Synthesis Of The Savant Lake Crow Lake Metavolcanic Metasedimentary Belt Northwestern Ontario And Its Bearing Upon Mineral Exploration
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Preliminary Geological Synthesis of the Savant Lake Crow Lake Metavolcanic metasedimentary Belt Northwestern Ontario and Its Bearing Upon Mineral Exploration
Author | : N. F. Trowell,C. E. Blackburn,G. R. Edwards |
Publsiher | : Unknown |
Total Pages | : 38 |
Release | : 1980 |
Genre | : Science |
ISBN | : STANFORD:36105016253168 |
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Early Precambrian Basic Magmatism
Author | : R.P. Hall,D.J. Hughes |
Publsiher | : Springer Science & Business Media |
Total Pages | : 498 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9789400903999 |
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Basic magmatic rocks make up approximately three-quarters of the crust ofthe present day Earth. Because we can observe and study the volcanic products of present day tectonic regimes comprehensively, we can shed light on ancient tectono-magmatic provinces, and thereby deduce the petrogenesis and evolution of the oldest basic rocks. This is the primary objective of this book. The book was conceived in order to provide a comprehensive review of the basic rocks produced during the first half of the Precambrian, i.e. the Archaean and early Proterozoic, to about 1.8 Ga years ago. Two major questions are addressed. First, what basic magmas were generated during the early Precambrian: were these magmas globally uniform, and to what extent were prevailing tectonic controls and compo sitions analogous to those of the present day? Clearly, this can be answered only by bringing together fundamental information about all relevant basic magmatic events. Second, is there any systematic temporal variation in the nature of basic suites, and what implications might such variations have on our interpretations of early Earth history? Are there important differences between early Archaean, late Archaean, Proterozoic and modern basic magmatic suites? The book uses two approaches to address these questions. Early chapters examine the fundamental characteristics of these basic rocks, whilst later chapters assess regional distribution and development by providing an overview of each major early Precambrian craton.
Ontario Geological Survey Miscellaneous Paper
Author | : Ontario. Ministry of Natural Resources |
Publsiher | : Unknown |
Total Pages | : 50 |
Release | : 1976 |
Genre | : Geology |
ISBN | : CHI:22853670 |
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Summary of Field Work and Other Activities
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 532 |
Release | : 1988 |
Genre | : Geology |
ISBN | : STANFORD:36105006178060 |
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Summary of Field Work and Other Activities 1985
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 372 |
Release | : 1985 |
Genre | : Electronic Book |
ISBN | : UIUC:30112027076352 |
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Miscellaneous Paper Ontario Geological Survey
Author | : Ontario Geological Survey |
Publsiher | : Unknown |
Total Pages | : 498 |
Release | : 1985 |
Genre | : Geology |
ISBN | : MINN:31951P00234573G |
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Ontario Geological Survey Report
Author | : Ontario. Ministry of Natural Resources |
Publsiher | : Unknown |
Total Pages | : 314 |
Release | : 1983 |
Genre | : Geology |
ISBN | : UCAL:B4207832 |
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Summary of Field Work and Other Activities 1988
Author | : Ontario Geological Survey |
Publsiher | : Unknown |
Total Pages | : 524 |
Release | : 1988 |
Genre | : Geology |
ISBN | : UIUC:30112027076493 |
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