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Author: F.-C. Wezel
Publisher: Elsevier
ISBN: 1483289966
Category : Science
Languages : en
Pages : 598
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Book Description
This volume contains a collection of papers presented as distinguished guest lectures at the International Conference on ``The Origin of Arcs'' held at the University of Urbino in September 1986, under the joint sponsorship of the European Union of Geosciences and the Italian Geological Society. The workshop on island and mountain arcs has been organized with the aim of increasing our understanding of the intrinsic nature of orogenic and post-orogenic processes, on the basis of empiric factual data, rather than particular theoretic models. Quite often a trivial piece of field data appears to bear much more weight than many fascinating hypotheses put forward by the human mind. This seems to be much more valid in geology, where a special method is necessitated by the particular nature of the geological phenomena and the time concept. Every general law deduced should be rooted in the study of the earth's development in geological time. It is the editor's opinion that there must first be an inductive picture by means of geological methods and then it must be interpreted by geophysicists in the light of physical laws. The geological method must serve, besides, to test the historical credibility of geophysical theories. It is clear that these two methods, the geological-historical one and the geophysical one, must be complementary and the one must not substitute the other. Since the problem of the structure and origin of arcs is open to several solutions, different factors being still unexplained, all correctly deduced opinions are considered by the editor. The contributors to this pre-conference volume have been asked to present essential geological results, as concrete as possible, on some basic problems, such as: Are the island and mountain arcs primary or induced features? How have these orogenic festoons developed into their similar regular shapes? What are the relationships between "primary" active arcs and "secondary" mountain arcs? What is the dominant deformational factor in the bulging of the arc? What is the real nature and tectonic significance of the Benioff zone? These papers have been grouped into five more or less natural sections, of which three are defined on the basis of geography. But of course several range broadly and the classification serves only to channel the discussion in a practical way.
Author: F.-C. Wezel
Publisher: Elsevier
ISBN: 1483289966
Category : Science
Languages : en
Pages : 598
Get Book Here
Book Description
This volume contains a collection of papers presented as distinguished guest lectures at the International Conference on ``The Origin of Arcs'' held at the University of Urbino in September 1986, under the joint sponsorship of the European Union of Geosciences and the Italian Geological Society. The workshop on island and mountain arcs has been organized with the aim of increasing our understanding of the intrinsic nature of orogenic and post-orogenic processes, on the basis of empiric factual data, rather than particular theoretic models. Quite often a trivial piece of field data appears to bear much more weight than many fascinating hypotheses put forward by the human mind. This seems to be much more valid in geology, where a special method is necessitated by the particular nature of the geological phenomena and the time concept. Every general law deduced should be rooted in the study of the earth's development in geological time. It is the editor's opinion that there must first be an inductive picture by means of geological methods and then it must be interpreted by geophysicists in the light of physical laws. The geological method must serve, besides, to test the historical credibility of geophysical theories. It is clear that these two methods, the geological-historical one and the geophysical one, must be complementary and the one must not substitute the other. Since the problem of the structure and origin of arcs is open to several solutions, different factors being still unexplained, all correctly deduced opinions are considered by the editor. The contributors to this pre-conference volume have been asked to present essential geological results, as concrete as possible, on some basic problems, such as: Are the island and mountain arcs primary or induced features? How have these orogenic festoons developed into their similar regular shapes? What are the relationships between "primary" active arcs and "secondary" mountain arcs? What is the dominant deformational factor in the bulging of the arc? What is the real nature and tectonic significance of the Benioff zone? These papers have been grouped into five more or less natural sections, of which three are defined on the basis of geography. But of course several range broadly and the classification serves only to channel the discussion in a practical way.
Author: M.J. Rickard
Publisher: Springer Science & Business Media
ISBN: 9401126542
Category : Science
Languages : en
Pages : 262
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Book Description
The Ninth International Conference on Basement Tectonics was held at the Australian National University in Canberra 2-6 July 1990. The opening keynote address was given by Prof. R.W.R. Rutland, Director of the Bureau of Mineral Resources. Other keynote speakers were E.S.T. O'Driscoll, an Australian consultant, and Prof P. Bankwitz, Central Institute for Physics of the Earth, Potsdam, GDR. Technical sessions were arranged by session conveners on the following five topic- i) The structure of the Australian craton and cover basins; ii) Basement structure of continental regions; iii) Structural patterns and mineral deposits; iv) Techniques for analysing basement structures; v) Structural patterns in oceanic crust. The arrangement of papers for this Proceedings Volume has been simplified. Part 1 deals with Australia, Part 2 with other areas and Part 3 lists the titles of all the papers read at the conference. Abstracts of these papers are available in Geological Society of Australia Abstracts No 26 and may be purchased for $AI0 from the Geological Society of Australia Office, ANA House, 301 George Street, Sydney NSW 2000. Field trips to view aspects of the Lachlan Fold Belt and the Sydney Basin were assisted by H.J. Harrington, D. Branagan, D. Wyborn, B. Drummond and M.J. Rick~d. A longer field trip, aborted through low enrolments, was organized by H.J. Harrington with assistance from W. Preiss, N. Cook, R. Glenn, A. Grady, and P. James; this assistance is gratefully acknowledged.
Author: U.S. Nuclear Regulatory Commission
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 212
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Book Description
Author: K. Srinivasamoorthy
Publisher: New India Publishing
ISBN: 9788189422714
Category : Nature
Languages : en
Pages : 578
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Book Description
Key Lectures *Strategy for Exploration and Exploitation of Placer Mineral in India: G.V.Rajamanickam *Exploration for Platinum Group Elements in Peninsular India Status Problems & Scope: Balaram *Understanding the Ore Forming Processes Key to Mineral Exploration: M.S.Pandian *Hyperspectral Remote Sensing: S.Sanjeevi *Total Quality Management (T.q.m.) in Evaluation of Granite Deposits: G.B.Sukumaran
Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 836
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Book Description
Author: Andrew Miall
Publisher: Elsevier
ISBN: 0080929362
Category : Science
Languages : en
Pages : 626
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Book Description
In recent years there have been rapid strides in our understanding of plate-tectonic processes, many developments in methods of basin analysis, and the accumulation of much new surface and subsurface geological and geophysical data. Projects such as COCORP (in the United States) and Lithoprobe (in Canada) have provided essential insights into the deep crustal structure of the continent. Synthesis of all the available information about North America's geological regions has not been attempted systematically since the "Decade of North American Geology project undertaken by the Geological Society of America and the Geological Survey of Canada nearly twenty years ago. The book commences with a summary of the Phanerozoic geological history of the United States and Canada, illustrated with a suite of new paleogeographic maps, and tying in each of the subsequent regional chapters by the inclusion of numerous cross-references. This followed by a set of fifteen regional syntheses of the principal tectonic regions of the United States and Canada, focusing on the stratigraphic and tectonic history of the major sedimentary basins. Most of these chapters have been contributed by specialists, drawing on their own research, and providing interpretive summaries of a type not previously attempted. - Up-to-date synthesis of the sedimentary/tectonic history of the major areas of the United States and Canada - Up-to-date references - Many new color maps
Author:
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 64
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Book Description
Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 370
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Book Description
Author: Sam Stuart
Publisher: Elsevier
ISBN: 148319003X
Category : Science
Languages : en
Pages : 439
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Book Description
The Development Potential of Precambrian Mineral Deposits covers several aspects of Precambrian mineral resource potential and assessment towards mineral exploration and mineral reserves. This book contains 27 chapters and begins with an overview of the world production and consumption of certain minerals. The next chapters describe the physical and chemical characteristics of certain mineral ores, as well as the mineral content of certain rock assemblages. These topics are followed by discussions of the geographical distribution of some ores, including discovered metal bearing zones in Africa. Considerable chapters are devoted to exploration techniques in tropical, temperate, and sub-arctic Precambrian areas. The remaining chapters examine the action of metamorphic and other geological processes in mobilizing ore minerals. The book will prove useful to geologists, researchers, and geology students.
Author: David G. Roberts
Publisher: Elsevier
ISBN: 0444530428
Category : Science
Languages : en
Pages : 908
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Book Description
The purpose of the series is to compile and pass on the accumulated knowledge of regional geology that is being lost as generalists with field experience are replaced by specialists with computers. It is designed to appeal to both academic and petroleum geologists. In this third and final part of Volume One, geologists discuss extensional basins including rifts, passive margins, and inverted extensional basins. The chapters have a broadly similar layout, and where appropriate include a section on the petroleum system. They cover non-volcanic and transform passive margins, cratonic basins on pre-Cambrian and Paleozoic basements, and world maps. Annotation ©2012 Book News, Inc., Portland, OR (booknews.com).
