U-Th series nuclides in aquatic systems /

This book provides state of art reviews on the applications of U-Th series nuclides to 'time' and 'tag' a variety of processes occurring in aquatic systems. The processes addressed would include, among others, chemical weathering on continents, dating of groundwaters and movement...

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Otros Autores: Krishnaswami, S., Prof (Editor ), Cochran, J. Kirk (Editor )
Formato: Electrónico eBook
Idioma:Inglés
Publicado: [The Netherlands] : Elsevier Science, 2008.
�2008
Edición:First edition
Colección:Radioactivity in the environment ; 13.
Temas:
Thorium
Uranium-thorium dating.
Water chemistry.
Nuclides.
Aquatic ecology.
Datation > M�ethode uranium-thorium.
Eau > Chimie.
Nucl�eides.
uranium-thorium dating.
SCIENCE > Chemistry > Inorganic.
Anwendung
Biogeochemie
Grundwasser
Grundwasserstrom
Hydrogeochemie
Hydrogeologie
Meereskunde
Methode
Pal�aoozeanographie
Radionuklid
Tracer
Uran
Acceso en línea:Texto completo
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Tabla de Contenidos:
  • 2 Organization of the Volume 4
  • 2 U- and Th-Series Nuclides in the Atmosphere: Supply, Exchange, Scavenging, and Applications to Aquatic Processes / T.M. Church, M.M. Sarin 11
  • 2 Sources of U- and Th-Series Nuclides to the Atmosphere 12
  • 3 Atmospheric Distributions 16
  • 4 Aerosol Scavenging Residence Times Using [superscript 222]Rn and Its Daughters 23
  • 5 Applications of Rn Daughters of Atmospheric Origin to Study Aquatic Processes 31
  • 6 Processes across Aquatic Interfaces 35
  • 7 Perspectives and Future Directions 39
  • 3 U-Series Geochemistry in Weathering Profiles, River Waters and Lakes / F. Chabaux, B. Bourdon, J. Riotte 49
  • 2 Radionuclide Fractionation in Surface Environments 50
  • 3 Radioactive Disequilibria in Weathering Profiles and Soils 59
  • 4 U Series in Rivers 63
  • 5 Review of Models for U-Series Fractionation in Surficial Environments 81
  • 6 U-Series Disequilibria in Lakes 86
  • 7 Future Perspectives 90
  • 4 Investigating Groundwater Processes Using U- and Th-Series Nuclides / D. Porcelli 105
  • 2 General Element Behavior in Groundwaters 108
  • 3 Modeling Nuclide Transport in Aquifers 112
  • 4 Obtaining Solutions to the Model Equations 118
  • 5 Radon and Recoil Rates 125
  • 6 Ra Isotopes 130
  • 7 Th Isotopes 134
  • 8 U Isotopes 136
  • 9 [superscript 210]Pb 143
  • 5 Uranium- and Thorium-Series Nuclides as Tracers of Submarine Groundwater Discharge / M.A. Charette, W.S. Moore, W.C. Burnett 155
  • 2 How U-Th Isotopes are Used to Quantify Submarine Groundwater Discharge (SGD) 158
  • 3 Radium 160
  • 4 Radon 171
  • 5 Uranium 178
  • 6 Synthesis of Existing Studies 181
  • 7 Towards a Global Estimate of SGD 184
  • 8 Perspectives and Future Directions 185
  • 6 U- and Th-Series Nuclides in Estuarine Environments / Brent A. McKee 193
  • 1 Introduction: Estuarine Processes 193
  • 2 Uranium 196
  • 3 Thorium 209
  • 4 Radium 212
  • 5 Radon 215
  • 6 Lead-210 and Polonium-210 216
  • 7 Future Studies 217
  • 7 U- and Th-Series Nuclides as Tracers of Particle Dynamics, Scavenging and Biogeochemical Cycles in the Oceans / M.M. Rutgers van der Loeff, W. Geibert 227
  • 1 Abundance and Distribution of U-Th Nuclides in the Sea 228
  • 2 Introduction to Particle Cycling and Scavenging in the Ocean 232
  • 3 The Scavenging Process as Understood from Thorium Isotopes 237
  • 4 Scavenging and Th Speciation 240
  • 5 [superscript 226]Ra-[superscript 210]Pb-[superscript 210]Po 242
  • 6 The Role of Particle Composition 244
  • 7 Boundary Scavenging 249
  • 8 Calibration of Vertical Particle Fluxes 251
  • 8 The Bioaccumulation of U- and Th-Series Radionuclides in Marine Organisms / Gillian M. Stewart, Scott W. Fowler, Nicholas S. Fisher 269
  • 2 Radionuclides of Interest and their Bioavailability 270
  • 3 Models of Uptake and Trophic Transfer 281
  • 4 Biodetritus and Vertical Transport 283
  • 5 Potential Impacts of Natural Radioactivity 290
  • 6 Synthesis and Conclusions 295
  • 7 Future Outlook and Perspectives 296
  • 9 Ocean Circulation/Mixing Studies with Decay-Series Isotopes / Teh-Lung Ku, Shangde Luo 307
  • 2 General Transport Equations 309
  • 3 Basic Ocean Mixing/Circulation Models 312
  • 4 Radium Isotopes for Tracing Oceanic Mixing/Circulation 316
  • 5 Radon-222 as a Vertical Mixing Tracer in the Deep Sea 329
  • 6 Actinium-227 as a Diapycnal Mixing Tracer in the Deep Sea 332
  • 7 Tracing Ocean Circulation Using Particle-Reactive Radionuclides 334
  • 8 Closing Remarks and Future Prospects 337
  • 10 Uranium- and Thorium-Series Radionuclides in Marine Groundwaters / J. Kirk Cochran, David C. Kadko 345
  • 2 U- and Th-Series Radionuclides in High-Temperature Marine Groundwaters: Hydrothermal Fluids 349
  • 3 U- and Th-Series Radionuclides in Low-Temperature Marine Groundwaters: Sediment Pore Water 358
  • 4 Future Directions 374
  • 11 Sediment Signatures of U- and Th-Series Nuclides and their Application as Paleoceanographic Tracers / Zanna Chase 383
  • 2 Long-Lived U-Series Nuclides in Sediments 384
  • 3 Short-Lived U-Series Nuclides in Sediments: Application to Sediment Mixing and Accumulation 386
  • 4 Authigenic Uranium as a Tracer of Sediment Redox State 388
  • 5 Use of [superscript 230]Th as a Constant Flux Proxy 390
  • 6 [superscript 231]Pa/[superscript 230]Th: Proxy for Particle Flux and Productivity 397
  • 7 [superscript 231]Pa/[superscript 230]Th: Proxy of Ocean Circulation 405
  • 8 Modeling Studies 406
  • 9 Manganese Crusts and Nodules 408
  • 10 Summary and Outlook 409
  • Appendix A Charts of the [superscript 238]U, [superscript 235]U, [superscript 232]Th, and [superscript 241]Am Decay Series with Principal Modes of Decay, their Intensities and Energies / Walter Geibert 417
  • Appendix B Systematics of Radioactive Decay / S. Krishnaswami, J. Kirk Cochran 425
  • 1 Overview of Decay Equations 425
  • 2 Examples of Applications 428.

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