Volcaniclastic Sedimentation In Lacustrine Settings
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Volcaniclastic Sedimentation in Lacustrine Settings
Author: James D. L. White
language: en
Publisher: John Wiley & Sons
Release Date: 2009-03-05
This volume presents a unique compendium of papers assessing theeffects of volcanism on lakes, as recorded by the volcaniclasticsediments deposited within them. The unifying theme is that theeffects of volcanism on lacustrine sedimentation are diverse anddistinctive, and that volcaniclastic lacustrine sediments hold thekey to understanding a range of processes and events that cannot bereadily addressed by the study of any non-volcanic lakes. Thirteen papers, with authors from nine countries, examine bothmodern and ancient eruption-affected lacustrine deposits. Volcaniceruptions affect lakes and their deposits in many ways, and thesepapers evaluate processes and products of volcanic eruptions withinlakes, of tectonically impounded lakes strongly influenced byvolcanism, of eruption-impounded lakes and of general factorscontrolling sedimentation of vitric ash and pumice.Tephrastratigraphic studies also take advantage of the exceptionalpreservation of thin laminae in quiet lakes to precisely dateepisodes in the evolution of long-lived lakes and their catchmentareas, and to understand how volcanism affects normal lacustrineprocesses. The volume as a whole is an unparalleled source of informationon all aspects of the physical sedimentary results of volcanism inlacustrine settings, and serves as a complement to other studiesconcerned primarily with thermal and geochemical characteristics oflakes within volcanic craters. If you are a member of the International Association ofSedimentologists, for purchasing details, please see:http://www.iasnet.org/publications/details.asp?code=SP30
Precambrian Sedimentary Environments
Author: Wladyslaw Altermann
language: en
Publisher: John Wiley & Sons
Release Date: 2009-03-05
The motivation for this volume came from the idea that thePrecambrian is the key, both to the present, and to theunderstanding of the Earth as a whole. The Precambrian constitutesabout 85% of Earth's history, and of that, about 3.75 billion yearsof Precambrian time, represented by rocks, are accessible togeoscientists. Ancient atmospheric and environmental conditions canbe traced back to the time when the Earth was only about 250million years old. Precambrian rocks supply almost 75% of importantmineral resources such as Fe, Mn, Au, Pt and Cr. Many of theseelements are associated with sedimentary rocks and some importanthydrocarbon, coal and graphite deposits are also hosted byPrecambrian rocks. This volume is aimed at geoscientists interested in Precambriansedimentary rocks and at students of Earth history. It containsreview articles discussing Precambrian conditions and case studiesfrom Precambrian shields and successions of North and SouthAmerica, Australia, Africa, Europe, Asia and India. Theintroductory papers, written by experts on Precambrianenvironments, treat comprehensively the application of actualism tothe Precambrian, the evolution and influence of life on thesedimentary rock record, the genesis of Banded Iron Formations, thePrecambrian sulphur cycle and the significance of Precambrianchemical carbonate precipitates. The case studies includedepositional settings and processes in Archean terranes, inPaleoproterozoic sequences, with some emphasis on the lack ofvegetation and weathering, and in late Proterozoic sequences, withsome emphasis on glacial deposits. The contributions demonstratethat Precambrian sedimentary deposits are commonly similar to theirPhanerozoic counterparts in terms of composition, sedimentaryprocesses, and depositional setting, but may differ significantlyas a result of lack of vegetation, climatic and biologicalconstraints, composition and circulation of seawater, and thesecular involvement of continental crust. Contains review articles discussing Precambrian conditions andcase studies from Precambrian shields and successions of North andSouth America, Australia, Africa, Europe, Asia and India. The introductory papers, written by experts on Precambrianenvironments, treat comprehensively the application of actualism tothe Precambrian, the evolution and influence of life on thesedimentary rock record, the genesis of Banded Iron Formations, thePrecambrian sulphur cycle and the significance of Precambrianchemical carbonate precipitates. Detailed case studies include depositional settings andprocesses in Archean terranes, in Paleoproterozoic sequences, withsome emphasis on the lack of vegetation and weathering, and in lateProterozoic sequences, with some emphasis on glacialdeposits. Written for geoscientists interested in Precambrian sedimentaryrocks and students of Earth history. If you are a member of the International Association ofSedimentologists (IAS), for purchasing details, please see:http://www.iasnet.org/publications/details.asp?code=SP33
Mechanism of Sedimentary Basin Formation
This book is devoted to the mechanisms of sedimentary basin formation on active plate margins, which show enormous diversity reflecting complex tectonic processes. Multidisciplinary approach pursuing basin-forming mechanism is based on geology, sedimentology, geochronology and geophysics. Some chapters are dedicated to the genetic analysis of sedimentary basins in wrench deformation zones in forearc and intra-arc regions. Another block of chapters deals with basin formation in peripheral regions of Eurasia and intra-arc / foreland basins under the influence of the fluctuation of stress regimes. Finally geophysical approaches to basin analyses are shown in some chapters from microscopic to regional scales. Diverse contents of the chapters provide the audience with the present accomplishments of basin researches on active margins by Earth scientists.