An edition of Optically stimulated luminescence (OSL) dating in the Amazonian wetlands
(2020)
Optically stimulated luminescence (OSL) dating in the Amazonian wetlands
by Dilce de Fátima Rossetti, Emílio Alberto Amaral Soares, and Sonia Hatsue Tatumi
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Optically stimulated luminescence (OSL) dating has proven to be extremely useful for establishing the Late Quaternary chronological framework in many areas of the Brazilian territory. In this region dominated by tropical climate, OSL dating can be more extensively applied than radiocarbon dating due to the generally low potential for the preservation of organic matter in sedimentary samples. This problem is especially critical in areas of the Amazonian lowlands, because of the hot climate and high precipitation rates. The abundance of quartz grains deposited in fluvial and aeolian environments.
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Subjects
Geochronometry, Geology, Earth sciences, Historical geology, StratigraphyPlaces
Amazon River Region| Edition | Availability |
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Optically stimulated luminescence (OSL) dating in the Amazonian wetlands
2020, Cambridge Scholars Publishing
in English
1527556069 9781527556065
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Book Details
Table of Contents
Intro
Table of Contents
Preface
Prologue
Chapter One
1.1 Introduction
1.2 The OSL theory
1.2.1 Principles
1.2.2 Band model applied to quartz OSL
1.2.3 OSL application in dating
1.2.4 Determination of equivalent dose
SAR protocol
1.2.5 Determination of annual dose rate
1.2.6 Results of the OSL dating technique applied to Amazonian sediments
1.2.6.1 Annual dose rates
Chapter Two
2.1 Presentation
2.2 Geology
2.2.1 General framework
2.2.2 Stratigraphy
2.2.3 Sediment types and depositional environments
2.3 Motivation to improve the chronological framework
2.3.1 Geological history of river basins
2.3.2 Basic geological mapping
2.3.3 Climatic versus neotectonic influence
2.3.4 Origin and evolution of the biodiversity
2.3.5 Global changes
Chapter Three
3.1 Presentation
3.2 Dating problems and methodological approach
3.2.1 Environmental restriction
3.2.2 Tropical weathering and pedogenesis
3.2.3 Water-table oscillation
3.2.4 Sediment deformation
Chapter Four
4.1 Presentation
4.2 Fluvial terraces
4.2.1 Strech of the Solimões-Amazon system between Codajás and Manaus
4.2.2 Low Negro River
4.2.3 Madeira River
4.2.4 Branco River
4.3 Viruá megafan
4.4 Aeolian dunes
Chapter Five
5.1 Improving the luminescence dating technique
5.2 Perspectives of research applications
5.3 Final remarks
References
Edition Notes
Includes bibliographical references.
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