Sedimentary processes quantification using radionuclides 1st Edition by JoLynn Carroll, Ian Lerche 9780080443003 0080443001

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ISBN 10: 0080443001
ISBN 13: 9780080443003 
Author:  JoLynn Carroll, Ian Lerche

The advent of radionuclide methods in geochronology has revolutionized our understanding of modern sedimentary processes in aquatic systems. This book examines the principles of the method and its use as a quantitative tool in marine geology, with emphasis on the Pb-210 method. The assumptions and consequences of models and their behaviour are described providing the necessary background to assess the advantages and trade-offs involved when choosing a particular model for application. One of the purposes of this volume is to disentangle the influences of complicating factors, such as sediment flux variations, post-depositional diffusion of radionuclides, and bio-irrigation of sediments, to arrive at sediment ages and to properly assess the attendant data uncertainty. Environmental impacts of chemical, nuclear, or other waste material are of concern in a variety of areas around the world today. A number of relevant examples are included, demonstrating how dating models are useful for determining sources of contaminants and interpreting their influence on the environment.

Sedimentary processes quantification using radionuclides 1st Table of contents:

Chapter 1. Introduction

1. Non-radioactive dating methods
2. Stable nuclides and other indicators of relative age
3. Radiometric dating
4. Applications of radiometric dating

Chapter 2. Radiometric methods

1. Basic procedure
2. Advanced procedures
3. Synthetic tests of the SIT method
4. Method comparison
   Appendix A. Technical development of SIT method for unmixed sediments

Chapter 3. Single site studies

1. Lake sediments and ²¹⁰Pb geochronology
2. Marine sediments and multi-radionuclide geochronology
3. Creel Bay and Main Bay, Devil’s Lake, North Dakota
4. Discussion and conclusions
   Appendix A. Resolution and uncertainty for disentanglement procedures

Chapter 4. Multiple site studies

1. Amazon Delta test case
2. ⁸⁷Sr/⁸⁶Sr sediment ages in stratigraphy studies
3. Eastern Arabian Sea
   Appendix A

Chapter 5. Sediment mixing

1. Introduction
2. Basic model
3. Organism-specific models
4. Physical turbation
5. A sedimentation model with bioturbation
6. Applications and limitations

Chapter 6. Biological mixing coefficients

1. Simple linear adsorption
2. Diffusion
3. Microscale diffusion
4. Bulk diffusion
5. Near surficial rapid mixing
6. Partition coefficient effects

Chapter 7. Marine contaminant studies

1. Sources of polyaromatic hydrocarbons in the White Sea
2. Burial history of radioactive waste in the Kara Sea
3. Incorporation of uranium mill tailings into North Pond, Colorado
4. Organic carbon preservation in Lake Baikal sediments, Russia

Chapter 8. Concerning error estimates in age dating of stage boundaries

1. Introduction
2. Minimum error interpolation
3. Combined absolute and stratigraphic radiometric errors
4. General age/stage interpolations
5. A corollary

Chapter 9. Epilogue
Appendix A. Sediment Isotope Tomography software: general requirements and operation
Introduction

1. Applications and general limitations
2. Model design
3. SIT model usage
4. Example simulations
   Sediment Isotope Tomography Code
   References

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