Oxygen Isotope Study of the Lower Critical Zone of the Central Sector of the Eastern Bushveld Igneous Complex, South Africa

Oxygen Isotope Study of the Lower Critical Zone of the Central Sector of the Eastern Bushveld Igneous Complex, South Africa PDF Author: Albert H. Wong
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 252

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Oxygen Isotope Study of the Lower Critical Zone of the Central Sector of the Eastern Bushveld Igneous Complex, South Africa

Oxygen Isotope Study of the Lower Critical Zone of the Central Sector of the Eastern Bushveld Igneous Complex, South Africa PDF Author: Albert H. Wong
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 252

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The American Journal of Science

The American Journal of Science PDF Author:
Publisher:
ISBN:
Category : Earth sciences
Languages : en
Pages : 612

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Layered Intrusions

Layered Intrusions PDF Author: Bernard Charlier
Publisher: Springer
ISBN: 9401796521
Category : Science
Languages : en
Pages : 749

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This edited work contains the most recent advances related to the study of layered intrusions and cumulate rocks formation. The first part of this book presents reviews and new views of processes producing the textural, mineralogical and geochemical characteristics of layered igneous rocks. The second part summarizes progress in the study of selected layered intrusions and their ore deposits from different parts of the world including Canada, Southwest China, Greenland and South Africa. Thirty experts have contributed to this update on recent research on Layered Intrusions. This highly informative book will provide insight for researchers with an interest in geology, igneous petrology, geochemistry and mineral resources.

Bibliography and Index of Geology

Bibliography and Index of Geology PDF Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 1434

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Time- and Strata-Bound Ore Deposits

Time- and Strata-Bound Ore Deposits PDF Author: D.D. Klemm
Publisher: Springer Science & Business Media
ISBN: 3642668062
Category : Science
Languages : en
Pages : 451

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The problem of time-and strata-bound formation of ore deposits has during the past decade become one of the most debated topics in cur rent international discussion. Due to the amazing results of modern mineral exploration and world-wide geophysical research, the mutual relationship between the complex geological history pf a crustal seg ment and the development of distinct metallogenic provinces (ore belts) has received much interest. Reviewing the earth's history in this light one can now recognize metallogenic epochs even of global range which document the existence of world-wide time-bound ore enrich ments. The knowledge of these metallogenetic processes has been growing step by step for several decades. It began with simple observations and sceptic interpretations, which at first threw heretical spot lights on to the edifices of the prevailing theories on granitic differentiation as the favoured source of ore deposits. It was obvious that the new ideas at first referred to ore enrichments in sedimentary sequences, nowadays summarized under the term strata-bound, and mainly interpreted as stratiform or sedimentary ore deposits. Moreover, the modern term "strata-bound" also includes ore mineralizations which are bound to distinct units of layered (intrusive or extrusive) igneous complexes as a general descriptive term without genetical restriction! Albert Maucher is one of the representatives of the initial era who discussed these genetical questions critically in the decade before the 2nd World War.

South African Journal of Science

South African Journal of Science PDF Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 350

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The Geology, Geochemistry, Mineralogy and Mineral Beneficiation of Platinum-group Elements

The Geology, Geochemistry, Mineralogy and Mineral Beneficiation of Platinum-group Elements PDF Author: Canadian Institute of Mining, Metallurgy and Petroleum
Publisher:
ISBN:
Category : Platinum group
Languages : en
Pages : 872

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Ore Deposit Models

Ore Deposit Models PDF Author: Robert Gwilym Roberts
Publisher:
ISBN:
Category : Geological modeling
Languages : en
Pages : 214

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Origins of Igneous Layering

Origins of Igneous Layering PDF Author: Ian Parsons
Publisher: Springer Science & Business Media
ISBN: 9401725098
Category : Science
Languages : en
Pages : 678

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Acknowledgements xix pioneering workers on igneous layering in Greenland xx Wbrkshop participants xxii Henning Sfl!rensen, University of Copenhagen, Dermark. Latte Melchior Larsen, Geological SUrvey of Greenland, Copenhagen, Dermark. Abstract 1 1 • Introduction 1 1. 1 The agpaitic rocks of the Ilimaussaq intrusion 3 2. Igneous layering in the Ilimaussaq intrusion 4 3. Mineralogy of the layered kakortokite series 15 4. Chemistry of the layered kakortokite series 19 5. Origin of the kakortokite layering 20 5. 1 Discussion 22 6. Conclusion 25 References 26 2. I. AYERn«;r CCMPl\CTIOO NID PCBJ. "--MN}tATIC ~ IN '!HE KLOKKEN INTRUSIOO 29 Ian Parsons and SUsanne M. Becker, University of Aberdeen, U. K. Abstract 29 1. Introduction 30 2. Age of the intrusion 31 3. General structure and mineral variation 31 vi TABLE OF CONTENTS 3. 1 Nomenclature of rock types 31 3. 2 Bulk chemical and modal variation 36 4. The contacts and wall-rocks 37 4. 1 Guter contact 37 4. 2 The gabbro sheath 37 4. 3 The unlaminated syenite sheath 39 4. 4 The gabbro-syenite transition 41 5. The layered series 43 5. 1 General relationships 43 5. 2 Granular syenites 43 5. 2. 1 Structure and cryptic variation 43 5. 2. 2 Origin of granular layers 46 5. 2. 3 Trace elements and chamber dlinensions 47 5. 3 Laminated syenites 48 5. 3. 1 General features 48 5. 3. 2 Mineral layering 51 5. 3.

Bulletin

Bulletin PDF Author:
Publisher:
ISBN:
Category : Geochemistry
Languages : en
Pages : 346

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