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Boron Proxies in Paleoceanograp
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- PublishedOn
- 2019-03-01
- ISBN
- 9781119010630
- EAN
- 9781119010630
- Subject Area
- Science
- Publication Name
- Boron Proxies in Paleoceanography and Paleoclimatology
- Item Length
- 10.1 in
- Publisher
- Wiley & Sons, Incorporated, John
- Subject
- Earth Sciences / Oceanography, Earth Sciences / Meteorology & Climatology, Global Warming & Climate Change, Chemistry / General
- Publication Year
- 2019
- Series
- Analytical Methods in Earth and Environmental Science Ser.
- Type
- Textbook
- Format
- Hardcover
- Language
- English
- Item Height
- 0.8 in
- Item Width
- 7.2 in
- Item Weight
- 24.1 Oz
- Number of Pages
- 256 Pages
關於產品
Product Information
Anthropogenic carbon dioxide emissions do not only warm our planet but also acidify our oceans. It is currently unclear to which degree Earth's climate and marine life will be impacted by these changes but information from Earth history, particularly the geochemical signals of past environmental changes stored in the fossil remains of marine organisms, can help us predict possible future changes. This book aims to be a primer for scientists who seek to apply boron proxies in marine carbonates to estimate past seawater carbonate chemistry and atmospheric pCO2. Boron proxies (δ11B and B/Ca) were introduced nearly three decades ago, with subsequent strides being made in understanding their mechanistic functioning. This text reviews current knowledge about the aqueous systematics, the inorganic and biological controls on boron isotope fractionation and incorporation into marine carbonates, as well as the analytical techniques for measurement of boron proxies. Laboratory and field calibrations of the boron proxies are summarized, and similarities between modern calibrations are explored to suggest estimates for proxy sensitivities in marine calcifiers that are now extinct. Example applications illustrate the potential for reconstructing paleo-atmospheric pCO2 from boron isotopes. Also explored are the sensitivity of paleo-ocean acidity and pCO2 reconstructions to boron isotope proxy systematics that are currently less well understood, including the elemental and boron isotopic composition of seawater through time, seawater alkalinity, temperature and salinity, and their collective impact on the uncertainty of paleo-reconstructions. The B/Ca proxy is based on the same mechanistic principles as the boron isotope proxy, but empirical calibrations suggest seawater pH is not the only controlling factor. B/Ca therefore has the potential to provide a second carbonate parameter that could be paired with δ11B to fully constrain the ocean carbonate system, but the associated uncertainties are large. This text reviews and examines what is currently known about the B/Ca proxy systematics. As more scientists embark on characterizing past ocean acidity and atmospheric pCO2, Boron in Paleoceanography and Paleoclimatology provides a resource to introduce geoscientists to the opportunities and complications of boron proxies, including potential avenues to further refine them.
Product Identifiers
Publisher
Wiley & Sons, Incorporated, John
ISBN-10
1119010632
ISBN-13
9781119010630
eBay Product ID (ePID)
12038755303
Product Key Features
Publication Name
Boron Proxies in Paleoceanography and Paleoclimatology
Format
Hardcover
Language
English
Subject
Earth Sciences / Oceanography, Earth Sciences / Meteorology & Climatology, Global Warming & Climate Change, Chemistry / General
Publication Year
2019
Series
Analytical Methods in Earth and Environmental Science Ser.
Type
Textbook
Subject Area
Science
Number of Pages
256 Pages
Dimensions
Item Length
10.1 in
Item Height
0.8 in
Item Width
7.2 in
Item Weight
24.1 Oz
Additional Product Features
LCCN
2018-032341
Intended Audience
Scholarly & Professional
Lc Classification Number
Qe39.5.P25h66 2018
Table of Content
Preface vii Acknowledgments viii About the Companion Website ix 1 Introduction and Concepts 1 1.1 Why Are we Interested in Reconstructing Marine Carbonate Chemistry? 1 Acknowledgments 8 References 8 Further Reading/Resources 12 2 Boron Systematics 13 2.1 Introduction 14 2.2 What Determines the Sensitivity of δ11B and B/Ca to Marine Carbonate Chemistry? 15 2.3 Boron Proxy Systematics in Synthetic Carbonates 21 2.4 Boron Isotopes in Biogenic Marine Carbonates 42 2.5 Secular Evolution of [BT] and δ11B in Seawater 81 2.6 The B/Ca Proxy in Foraminifera 88 References 105 3 Reconstructing PaleoAcidity, pCO2 and DeepOcean [CO32-] 120 3.1 Introduction 120 3.2 Estimating Paleoseawater pH from Boron Isotopes 122 3.3 Estimating Marine Carbonate Chemistry from B/Ca Ratios 150 3.4 Guidelines for Selecting Sediment Core Sites and Sample Sizes 155 References 156 4 Boron Concentration and Isotope Ratio Analysis 165 4.1 Introduction 165 4.2 InterLaboratory Comparison Studies 170 4.3 Standard Reference Materials and Data Quality Assurance 172 4.4 Boron Concentration and Isotope Ratio Analysis 175 4.5 Sample Preparation and Cleaning 179 4.6 Boron Separation and Purification 183 4.7 Instrumental Techniques 188 4.8 Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS) 201 4.9 Secondary Ion Mass Spectrometry (SIMS) 204 4.10 Other Techniques 206 4.11 Outlook and Future Directions 210 References 211 Index 224
Copyright Date
2019
Illustrated
Yes
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