Microstructural Geochronology: Planetary Records Down to Atom Scale

Geochronology techniques enable the study of planetary evolution and environmental change over billions of years. This volume integrates two aspects of geochronology: one based on classical methods of orientation and spatial patterns, and the other on ratios of radioactive isotopes and their decay products.

The chapters illustrate how material science techniques are taking this field to the atomic scale, enabling us to image the chemical and structural record of mineral lattice growth and deformation, and sometimes the structures formed by radioactive parent and daughter atoms themselves, to generate a microstructural geochronology from some of the most resilient materials in the solar system.

Volume highlights include:

First compilation of research focusing on the crystal structure, material properties, and chemical zoning of the geochronology mineral archive down to nanoscale Novel comparisons of mineral time archives from different rocky planets and asteroids and their shock metamorphic histories Fundamentals on how to reconstruct and date radiogenic isotope distributions using atom probe tomography

Microstructural Geochronology: Planetary Records Down to Atom Scale will be a valuable resource for graduate students, academics, and researchers in the fields of petrology, geochronology, mineralogy, geochemistry, planetary geology, astrobiology, chemistry, and material science. It will also appeal to philosophers and historians of science, and scholars of other disciplines who are interested in natural records of ′deep time′.

Contributors vii

Preface xi

Part I: Chemical Microstructure/Zoning

1 Zircon as Magma Monitor: Robust, Temperature ]Dependent Partition Coefficients from Glass and Zircon Surface and Rim Measurements from Natural Systems
Lily L. Claiborne, Calvin F. Miller, Guillherme A. R. Gualda, Tamara L. Carley, Aaron K. Covey, Joseph L. Wooden, and Marc A. Fleming  3

2 Petrology and Geochronology of Metamorphic Zircon
Matthew J. Kohn and Nigel M. Kelly  35

3 Origins of Textural, Compositional, and Isotopic Complexity in Monazite and Its Petrochronological Analysis
Callum J. Hetherington, Ethan L. Backus, Christopher R. M. McFarlane, Christopher M. Fisher, and D. Graham Pearson  63

4 Application of Single ]Shot Laser Ablation Split ]Stream Inductively Coupled Plasma Mass Spectrometry to Accessory Phase Petrochronology
John M. Cottle and Michael A. Stearns  91

5 Comparing Chemical Microstructures of Some Early Solar System Zircon from Differentiated Asteroids, Mars and Earth
Julia Roszjar, Desmond E. Moser, Brendt C. Hyde, Chutimun Chanmuang, and Kimberly Tait  113

6 Crystallization of Baddeleyite in Basaltic Rocks from Mars, and Comparisons with the Earth, Moon, and Vesta
Christopher D. K. Herd, Desmond E. Moser, Kimberly Tait, James R. Darling, Barry J. Shaulis, and Timothy J. McCoy  137

Part II: Orientation Microstructure

7 Strength and Deformation of Zircon at Crustal and Mantle Pressures
Ievgeniia Morozova, Sean R. Shieh, Desmond E. Moser, Ivan R. Barker, and John M. Hanchar  169

8 Role of Elastic Anisotropy in the Development of Deformation Microstructures in Zircon
Nicholas E. Timms, David Healy, Timmons M. Erickson, Alexander A. Nemchin, Mark A. Pearce, and Aaron J. Cavosie  183

9 The Rietputs Formation in South Africa: A Pleistocene Fluvial Archive of Meteorite Impact Unique to the Kaapvaal Craton
Aaron J. Cavosie, Timmons M. Erickson, Pedro E. Montalvo, Diana C. Prado, Nadja O. Cintron, and Ryan J. Gibbon  203

10 Deciphering the Effects of Zircon Deformation and Recrystallization to Resolve the Age and Heritage of an Archean Mafic Granulite Complex
Nicole M. Rayner, Mary Sanborn ]Barrie, and Desmond E. Moser  225

11 Alpha Recoil Loss of Pb from Baddeleyite Evaluated by High ]Resolution Ion Microprobe (SHRIMP II) Depth Profiling and Numerical Modeling: Implications for the Interpretation of U ]Pb Ages in Small Baddeleyite Crystals
William J. Davis and Donald W. Davis 247

12 Transmission Electron Microscope Imaging Sharpens Geochronological Interpretation of Zircon and Monazite
Anne ]Magali Seydoux ]Guillaume, Bernard Bingen, Valerie Bosse, Emilie Janots, and Antonin T. Laurent 261

Part III: 3D Nanostructure

13 Detecting Micro ] and Nanoscale Variations in Element Mobility in High ]Grade Metamorphic Rocks: Implication for Precise U ]Pb Dating of Zircon
Monika A. Kusiak, Simon A. Wilde, Richard Wirth, Martin J. Whitehouse, Daniel J. Dunkley, Ian Lyon, Steven M. Reddy, Andrew Berry, and Martin de Jonge 279

14 The Optimization of Zircon Analyses by Laser ]Assisted Atom Probe Microscopy: Insights from the 91500 Zircon Standard
David W. Saxey, Steven M. Reddy, Denis Fougerouse, and William D. A. Rickard 293

15 Atom Probe Tomography of Phalaborwa Baddeleyite and Reference Zircon BR266
David A. Reinhard, Desmond E. Moser, Isabelle Martin, Katherine P. Rice, Yimeng Chen, David Olson, Daniel Lawrence, Ty J. Prosa, and David J. Larson 315

16 Uncertainty and Sensitivity Analysis for Spatial and Spectral Processing of Pb Isotopes in Zircon by Atom Probe Tomography
Tyler B. Blum, David A. Reinhard, Yimeng Chen, Ty J. Prosa, David J. Larson, and John W. Valley 327

17 Complex Nanostructures in Shocked, Annealed, and Metamorphosed Baddeleyite Defined by Atom Probe Tomography
Lee F. White, James R. Darling, Desmond E. Moser, David A. Reinhard, Joseph Dunlop, David J. Larson, Daniel Lawrence, and Isabelle Martin 351

18 Best Practices for Reporting Atom Probe Analysis of Geological Materials
Tyler B. Blum, James R. Darling, Thomas F. Kelly, David J. Larson, Desmond E. Moser, Alberto Perez ]Huerta, Ty J. Prosa, Steven M. Reddy, David A. Reinhard, David W. Saxey, Robert M. Ulfig, and John W. Valley 369

Index 375

Desmond E. Moser, University of Western Ontario, Canada

Fernando Corfu, University of Oslo, Norway

James R. Darling, University of Portsmouth, UK

Steven M. Reddy, Curtin University, Australia

Kimberly Tait, Royal Ontario Museum, Canada