Phosphorites on the Sea Floor PDF Download

Author: G.N. Baturin
Publisher: Elsevier
ISBN: 0080869475
Category : Science
Languages : en
Pages : 355

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Phosphorites on the Sea Floor

Author: Gleb Nikolaevič Baturin
Publisher: Elsevier Science & Technology
ISBN: 9780444412386
Category :
Languages : en
Pages : 343

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Author: Gleb Nikolaevich Baturin
Publisher:
ISBN: 9780444412386
Category : Marine mineral resources
Languages : en
Pages : 0

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Phosphorites on the Sea Floor.

Author: Jörn Thiede
Publisher: Springer
ISBN:
Category : Nature
Languages : en
Pages : 640

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Book Description
NATO Advanced Research Institutes are designed to explore unre solved problems. By focusing complementary expertise from various disciplines onto one unifying theme, they approach old problems in new ways. In line with this goal of the NATO Science Committee, and with substantial support from the u.s. Office of Naval Research and the Seabed Assessment Program of the u.s. National Science Founda tion, such a Research Institute on the theme of Coastal Qpw llinq and Its Sediment Record was held September 1-4, 1981, in Vilamoura, Portuqal. The theme implies a modification of uniformitarian thinking in earth science. Expectations were directed not so much towards find ing the key to the past as towards explorinq the limits of interpret inq the past based on present upwelling oceanography. Coastal up wellinq and its imprint on sediments are particularly well-suited for such a scientific inquiry. The oceanic processes and conditions characteristic of upwelling are well understood and are a well packaqed representation of ocean science that are familiar to qeolo gists, just as the maqnitude of bioproduction and sedimentation in upwellinq reqimes --among other bioloqical and geoloqical processes- have made oceanographers realize that the bottom has a feedback role for their models.

Author: Cesare Emiliani
Publisher: Harvard University Press
ISBN: 9780674017368
Category : Political Science
Languages : en
Pages : 1758

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Author: Frank F. H. Wang
Publisher:
ISBN:
Category : Marine mineral resources
Languages : en
Pages : 252

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Author:
Publisher:
ISBN:
Category : Ocean mining
Languages : en
Pages : 720

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Author: P. J. Cook
Publisher: Cambridge University Press
ISBN: 9780521333702
Category : Nature
Languages : en
Pages : 486

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Marine phosphorites, the principal raw material for phosphatic fertilizers, do not occur uniformly through time and space. The origin of these unusual sedimentary rocks appears to be related mainly to marine biological productivity, often associated with upwelling currents during certain intervals of geological time. This book examines the environmental setting and resulting phosphorites which formed during the Miocene, one of the major and most recent phosphogenic periods throughout the geologic record. In addition, an oceanographic perspective is given by investigations of modern oceanic environments where phosphorites are presently forming. Together, the geologic and marine approaches provide a complete outlook on this important mineral resource. This book is the third of four reference volumes which together cover the achievements of the International Geological Correlation Programme Project 156 (Phosphorites) during the ten years of the project's existence.

Author: Maurice E. Tucker
Publisher: John Wiley & Sons
ISBN: 144431159X
Category : Science
Languages : en
Pages : 290

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The earlier editions of this book have been used by successive generations of students for more than 20 years, and it is the standard text on the subject in most British universities and many others throughout the world. The study of sediments and sedimentary rocks continues to be a core topic in the Earth Sciences and this book aims to provide a concise account of their composition, mineralogy, textures, structures, diagenesis and depositional environments. This latest edition is noteworthy for the inclusion of 16 plates with 54 colour photomicrographs of sedimentary rocks in thin-section. These bring sediments to life and show their beauty and colorful appearance down the microscope; they will aid the student enormously in laboratory petrographic work. The text has been revised where necessary and the reference and further reading lists brought up-to-date. New tables have been included to help undergraduates with rock and thin-section description and interpretation. New 16-page colour section will mean students do not need to buy Longman Atlas All illustrations redrawn to higher standard Complete revision of text - new material on sedimentary geochemistry, etc

Author: Bozzano G Luisa
Publisher: Elsevier
ISBN: 0444598995
Category : Nature
Languages : en
Pages : 366

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Book Description
Supergene and Surficial Ore Deposits; Textures and Fabrics is a collection of papers that deals with economic geological deposits, particularly as endogenic type, or as an integral part of their geological environment. One paper explores the possibility that the evolution of ores of sedimentary affiliation or of sedimentary rocks and their chemistry during geologic history can be a product of the evolution of the outer spheres of the earth combined with a cycling phenomena that proceeds in a spiral way. Another paper discusses the role of climate on a large range of depositional environments through mobilization, both by chemical and physical events, of metal-ions. Mobilization can also occur by controlled deposition and enrichment of the "mobilized" ions in a certain sedimentary environment. Various depositions occur in different climates, for example, bauxites, requiring higher precipitation levels, form in humid zones. One paper points that ore-mineral accumulations controlled by descending supergene solutions play a significant role in ore-mineral depositions. The collection is beneficial to geologists, industrial chemists, researchers, technical designers, and engineers whose works are related with ore deposits and mining.