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6 Preface PART I: HIGH‐TEMPERATURE/DEEP EARTH PROCESSES PART II: LOW‐TEMPERATURE/SHALLOW EARTH PROCESSES REFERENCES
9 Part I: High‐Temperature/Deep Earth Processes 1 High‐Temperature Kinetic Isotope Fractionation of Silicate Materials 1.1. INTRODUCTION 1.2. DIFFUSION IN MULTI‐COMPONENT CONDENSED SYSTEMS: THEORY AND DEFINITIONS 1.3. KINETIC ISOTOPE FRACTIONATION DURING DIFFUSION BETWEEN NATURAL MELTS 1.4. ISOTOPE FRACTIONATION BY SORET DIFFUSION 1.5. ISOTOPE FRACTIONATION BY DIFFUSION IN SILICATE MINERALS 1.6. ISOTOPE FRACTIONATION BY EVAPORATION FROM SILICATE MELTS 1.7. SUMMARY 1.8. THOUGHTS ON FURTHER RESEARCH REFERENCES 2 Ca and K Isotope Fractionation by Diffusion in Molten Silicates 2.1. INTRODUCTION 2.2. METHODS 2.3. RESULTS 2.4. DISCUSSION 2.5. MODELING 2.6. CONCLUSIONS AND POSSIBLE FUTURE APPLICATIONS APPENDIX LINEAR VERSUS EXPONENTIAL DEPENDENCE OF ACTIVITY ON SIO2 ACKNOWLEDGMENTS REFERENCES 3 Calcium Isotope Constraints on Recycled Carbonates in Subduction‐Related Magmas 3.1. INTRODUCTION 3.2. ANALYTICAL METHODS AND SAMPLES 3.3. RESULTS 3.4. DISCUSSION 3.5. CONCLUSIONS ACKNOWLEDGMENTS REFERENCES 4 Reassessing the Role of Continental Lithospheric Mantle in Cenozoic Magmatism, Southwestern North America 4.1. INTRODUCTION 4.2. GEOLOGIC BACKGROUND & GENERAL TERMINOLOGY 4.3. METHODS/DATA 4.4. RESULTS 4.5. DISCUSSION 4.6. CONCLUSIONS ACKNOWLEDGMENTS REFERENCES 5 Rhyolite Ignimbrite Generation in the Northern Andes 5.1. INTRODUCTION 5.2. GEOLOGICAL SETTING AND AGE OF THE CHALUPAS CALDERA 5.3. GEOCHEMICAL RESULTS 5.4. EVOLUTION OF THE CHALUPAS MAGMATIC SYSTEM 5.5. CRUSTAL STRUCTURE, MAGMA SUPPLY, AND TRANSPORT 5.6. CHALUPAS ERUPTION VOLUME AND MAGMA SUPPLY 5.7. SUMMARY AND CONCLUSIONS APPENDIX 5A Appendix APPENDIX 5B MINERAL CHEMISTRY AND PETROGRAPHIC DESCRIPTIONS APPENDIX 5C MODELS FOR CRYSTAL FRACTIONATION, ASSIMILATION-FRACTIONAL CRYSTALLIZATION, AND MAGMA FLUXES ACKNOWLEDGMENTS REFERENCES 6 Xenolith Constraints on “Self‐Assimilation” and the Origin of Low δ18O Values in Mauna Kea Basalts 6.1. INTRODUCTION 6.2. SAMPLES AND ANALYTICAL METHODS 6.3. RESULTS 6.4. DISCUSSION 6.5. CONCLUSIONS ACKNOWLEDGMENTS REFERENCES SUPPLEMENTAL