|
|
libcats.org
Главная →
Altermann Precambrian Sedimentary Environments-A Modern Approach to Ancient Depositional Systems 063Altermann Precambrian Sedimentary Environments-A Modern Approach to Ancient Depositional Systems 063Wladyslaw Altermann, Patricia CorcoranThe motivation for this volume came from the idea that the Precambrian is the key, both to the present, and to the understanding of the Earth as a whole. The Precambrian constitutes about 85% of Earth's history, and of that, about 3.75 billion years of Precambrian time, represented by rocks, are accessible to geoscientists. Ancient atmospheric and environmental conditions can be traced back to the time when the Earth was only about 250 million years old. Precambrian rocks supply almost 75% of important mineral resources such as Fe, Mn, Au, Pt and Cr. Many of these elements are associated with sedimentary rocks and some important hydrocarbon, coal and graphite deposits are also hosted by Precambrian rocks.
This volume is aimed at geoscientists interested in Precambrian sedimentary rocks and at students of Earth history. It contains review articles discussing Precambrian conditions and case studies from Precambrian shields and successions of North and South America, Australia, Africa, Europe, Asia and India. The introductory papers, written by experts on Precambrian environments, treat comprehensively the application of actualism to the Precambrian, the evolution and influence of life on the sedimentary rock record, the genesis of Banded Iron Formations, the Precambrian sulphur cycle and the significance of Precambrian chemical carbonate precipitates. The case studies include depositional settings and processes in Archean terranes, in Paleoproterozoic sequences, with some emphasis on the lack of vegetation and weathering, and in late Proterozoic sequences, with some emphasis on glacial deposits. The contributions demonstrate that Precambrian sedimentary deposits are commonly similar to their Phanerozoic counterparts in terms of composition, sedimentary processes, and depositional setting, but may differ significantly as a result of lack of vegetation, climatic and biological constraints, composition and circulation of seawater, and the secular involvement of continental crust.
If you are a member of the International Association of Sedimentologists (IAS), for purchasing details, please see: http://www.iasnet.org/publications/details.asp?code=SP33
Популярные книги за неделю:
Система упражнений по развитию способностей человека (Практическое пособие)Автор: Петров Аркадий НаумовичКатегория: Путь к себе
Размер книги: 818 Kb
Сотворение мира (3-х томник)Автор: Петров Аркадий НаумовичКатегория: Путь к себе
Размер книги: 817 Kb
Только что пользователи скачали эти книги:
Antimicrobial Resistance: Problem Pathogens and Clinical Countermeasures (Infectious Disease and Therapy)Автор: Jr., Автор: Robert C. Owens, Автор: Ebbing Lautenbach
Размер книги: 2.69 Mb
Левобережная Украина в составе Российского государства во второй половине XVIII века.Автор: Путро А. И.Категория: Історія
Размер книги: 70.32 Mb
The Lure of Illustration in the Nineteenth Century: Picture and PressАвтор: Laurel Brake, Автор: Marysa Demoor
Размер книги: 4.25 Mb
Structural Dynamics: Theory and ComputationАвтор: Mario Paz, Автор: William LeighКатегория: Engineering
Размер книги: 47.70 Mb
|
|
|