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Courses
- IGIntroduction to Geochemistry
- GTGeochronology and Thermochronology
- MMineralogy
- GFCGeology Field Camp
Grants
- Collaborative Research: Improved Geochronology-Based Sediment Provenance Analysis Through Physico-Mechanical Characterization of Zircon Transport
Principal Investigator (PI)
2023
$260.6K
Active - MRI: Acquisition of a Multicollector - Inductively Coupled Plasma - Mass Spectrometer at the University of Arizona for Earth and Planetary Science Research, Education and Outreach
Principal Investigator (PI)
2022
$809.8K
Active - CAREER: Redefining The High Field Strength Element Systematics of Subduction Systems Using Non-traditional Stable Isotopes
Principal Investigator (PI)
2022
$427.0K
Active - Upgrade of the Scanning Electron Microscope Lab at the Arizona LaserChron Center
Co-Investigator (COI)
2022
$400.4K
Active - Community Facility Support for Geochronology and Thermochronology at the Arizona LaserChron Center
Co-Investigator (COI)
2021
$885.1K
Active - Caught in the Act - The Petrology of Modern Lower-Crust Formation and Foundering in the North Andean Arc
Principal Investigator (PI)
2021
$254.7K
Active - Collaborative Research: The Zirconium Isotope Composition and Variability of theSilicate Earth - A Pilot Study
Principal Investigator (PI)
2021
$125.3K
News
- College of Science Lecture Series returns in person to delve into the mineral world
2022
Publications (70)
Recent
- To sink, or not to sink: The thermal and density structure of the modern northern Andean arc constrained by xenolith petrology
2023
- Zircon growth experiments reveal limited equilibrium Zr isotope fractionation in magmas
2023
- Late Ediacaran crustal thickening in Egypt: Geochemical and isotopic constraints from post-collisional volcanism in southern Sinai, Egypt
2023
- Mineralogy, geochronology, and geochemistry of the calc-alkaline Um Takha white granite pluton, South Sinai, Egypt
2023
- The oxidation state of uranium in zircon from U M4-edge X-ray absorption spectroscopy
2022
- Early Cambrian renewal of the geodynamo and the origin of inner core structure
2022
- Tectonic domains in the NW Amazonian Craton from geophysical and geological data
2022
- Diffusion anisotropy of Ti in zircon and implications for Ti-in-zircon thermometry
2022
- The Oxidation State of Uranium in Zircon and Other Igneous Accessory Phases from U M4-edge X-Ray Absorption Spectroscopy
2022
- Drivers of zirconium isotope fractionation in Zr-bearing phases and melts: The roles of vibrational, nuclear field shift and diffusive effects
2021
- Reliability of detrital marine sediments as proxy for continental crust composition: The effects of hydrodynamic sorting on Ti and Zr isotope systematics
2021
- San José de Guaviare Syenite, Colombia: Repeated Ediacaran intrusions in the northwestern Amazonian Craton
2021
- Absence of a long-lived lunar paleomagnetosphere
2021
- This is an Open Access document downloaded from ORCA, Cardiff University's institutional repository: https://orca. cardiff. ac. uk/id/eprint/141713/This is the author’s version …
2021
- Unlocking the Single-Crystal Record of Heavy Stable Isotopes
2021
- Reading the Isotopic Code of Heavy Elements
2021
- The Guaviare Complex: new evidence of Mesoproterozoic (ca. 1.3 Ga) crust in the Colombian Amazonian Craton
2020
- Widespread silicic and alkaline magmatism synchronous with the Deccan Traps flood basalts, India
2020
- Petrology and geochronology of a suite of pelitic granulites from parts of the Chotanagpur Granite Gneiss Complex, eastern India: Evidence for Stenian‐Tonian reworking of a …
2020
- The Putumayo Orogen of Amazonia: A synthesis
2020
- Petrology and geochronology of a suite of pelitic granulites from parts of the Chotanagpur Granite Gneiss Complex, eastern India: Evidence for Stenian-Tonian reworking of a late Paleoproterozoic crust
2020
- Formation and evolution of the Lower Magdalena Valley Basin and San Jacinto fold belt of northwestern Colombia: Insights from Upper Cretaceous to recent tectono–stratigraphy
2020
- Zirconium stable isotope analysis of zircon by MC-ICP-MS: Methods and application to evaluating intra-crystalline zonation in a zircon megacryst
2020
- Multispecies Diffusion of Yttrium, Rare Earth Elements and Hafnium in Garnet
2020
- Neogene precipitation, vegetation, and elevation history of the Central Andean Plateau
2020
- Tectonic juxtaposition of Triassic and Cretaceous meta-(ultra)mafic complexes in the Central Cordillera of Colombia (Medellin area) revealed by zircon U-Pb geochronology and Lu …
2020
- Zircon U–Pb geochronology and Hf–Nd–O isotope geochemistry of the Paleoproterozoic to Mesoproterozoic basement in the westernmost Guiana Shield
2020
- Bulk rock and zircon geochemistry of granitoids from the Chotanagpur Granite Gneissic Complex (CGGC): implications for the late Paleoproterozoic continental arc magmatism in …
2019
- GHR 1 Zircon–A New Eocene Natural Reference Material for Microbeam U‐Pb Geochronology and Hf Isotopic Analysis of Zircon
2019
- 238U/235U measurement in single-zircon crystals: implications for the Hadean environment, magmatic differentiation and geochronology
2019
- Structural analysis combined with new geothermobarometric and geochronological results of the Além Paraíba shear zone, between Três Rios and Bananal, Ribeira Orogen, SE Brazil
2019
- Bulk rock and zircon geochemistry of granitoids from the Chotanagpur Granite Gneissic Complex(CGGC): implications for the late Paleoproterozoic continental arc magmatism in the East Indian Shield
2019
- Extreme Zr stable isotope fractionation during magmatic fractional crystallization
2019
- Geochemistry, U-Pb geochronology and Lu-Hf isotope systematics of a suite of ferroan (A-type) granitoids from the CGGC: Evidence for Mesoproterozoic crustal extension in the east Indian shield
2018
- Timescales of collisional metamorphism from Sm-Nd, Lu-Hf and U-Pb thermochronology: A case from the Proterozoic Putumayo Orogen of Amazonia
2018
- Use and abuse of detrital zircon U-Pb geochronology—A case from the Río Orinoco delta, eastern Venezuela
2018
- Optimization of a laser ablation-single collector-inductively coupled plasma-mass spectrometer (Thermo Element 2) for accurate, precise, and efficient zircon U-Th-Pb geochronology
2018
- Zr stable isotope fractionation during magmatic processes
2018
- U-Pb zircon ages of Deccan Acid Igneous Complexes and their temporal relationship with the Cretaceous-Paleogene boundary
2018
- Petrology and U–Pb geochronology of zircon in a suite of charnockitic gneisses from parts of the Chotanagpur Granite Gneiss Complex (CGGC): evidence for the reworking of a …
2017
- Recent crustal foundering in the Northern Volcanic Zone of the Andean arc: Petrological insights from the roots of a modern subduction zone
2017
- Structure and age of the Lower Magdalena Valley basin basement, northern Colombia: New reflection-seismic and U-Pb-Hf insights into the termination of the central andes against the Caribbean basin
2017
- Timing of initial seafloor spreading in the Newfoundland-Iberia rift
2017
- Hace tiempo. Un viaje paleontológico ilustrado por Colombia
2017
- Linking Late Cretaceous to Eocene Tectonostratigraphy of the San Jacinto Fold Belt of NW Colombia With Caribbean Plateau Collision and Flat Subduction
2017
- Structure and age of the Lower Magdalena Valley basin basement, northern Colombia: New reflection-seismic and U-Pb-Hf insights into the termination of the central andes against …
2017
- New age constraints for early Paleogene strata of central Patagonia, Argentina: implications for the timing of South American Land Mammal Ages
2017
- Deciphering Sedimentary Provenance and Timing of Sedimentation From a Suite of Metapelites From the Chotanagpur Granite Gneissic Complex, India: Implications for Proterozoic Tectonics in the East-Central Part of the Indian Shield
2017
- Revised chronostratigraphy and biostratigraphy of the early−middle Miocene Railroad Canyon section of central-eastern Idaho, USA
2017
- Deciphering sedimentary provenance and timing of sedimentation from a suite of metapelites from the Chotanagpur Granite Gneissic complex, India: implications for Proterozoic …
2017
- Petrology and U–Pb geochronology of zircon in a suite of charnockitic gneisses from parts of the Chotanagpur Granite Gneiss Complex (CGGC): evidence for the reworking of a Mesoproterozoic basement during the formation of the Rodinia supercontinent
2017
- Magmatic History and Crustal Genesis of Western South America: Constraints from U-Pb ages and Hf isotopes of detrital zircons in modern rivers
2016
- Unraveling crustal growth and reworking processes in complex zircons from orogenic lower-crust: The Proterozoic Putumayo Orogen of Amazonia
2015
- New age constraints for the Salamanca Formation and lower Rio Chico Group in the western San Jorge Basin, Patagonia, Argentina: Implications for Cretaceous-Paleogene extinction recovery and land mammal age correlations
2014
- What happens when n=1000? Creating large-n geochronological datasets with LA-ICP-MS for geologic investigations
2014
- Small-volume baddeleyite (ZrO2) U-Pb geochronology and Lu-Hf isotope geochemistry by LA-ICP-MS. Techniques and applications
2014
- New age constraints for the Salamanca Formation and lower Río Chico Group in the western San Jorge Basin, Patagonia, Argentina: Implications for Cretaceous-Paleogene extinction …
2014
- Inversion tectonics under increasing rates of shortening and sedimentation: Cenozoic example from the Eastern Cordillera of Colombia
2013
- Interrelationships among Mesozoic Graben distribution, stress, amount of shortening and structural style in the Eastern Cordillera of Colombia
2013
- Relationship of Mesozoic graben development, stress, shortening magnitude, and structural style in the Eastern Cordillera of the Colombian Andes
2013
- Reply to Comment on “U–Pb baddeleyite ages and geochemistry of dolerite dykes in the Bas-Drâa inlier of the Anti-Atlas of Morocco: Newly identified 1380 Ma event in the West …
2013
- Basin compartmentalization and drainage evolution during rift inversion: evidence from the Eastern Cordillera of Colombia
2013
- Reply to Comment on “U–Pb baddeleyite ages and geochemistry of dolerite dykes in the Bas-Drâa inlier of the Anti-Atlas of Morocco: Newly identified 1380Ma event in the West African Craton” by André Michard and Dominique Gasquet
2013
- U-Pb zircon ages of the Medellin Amphibolites (Central Cordillera of Colombia) reveal mid-Cretaceous tectonic juxtaposition of Triassic and mid-Cretaceous metamorphic complexes
2012
- Early Paleogene magmatism in the northern Andes: Insights on the effects of Oceanic Plateau–continent convergence
2012
- The Putumayo Orogen of Amazonia and its implications for Rodinia reconstructions: New U-Pb geochronological insights into the Proterozoic tectonic evolution of northwestern South America
2011
- New U-Pb Geochronological insights into the Proterozoic tectonic evolution of northwestern South America: The Mesoneoproterozoic Putumayo orogen of Amazonia and implications …
2010
- Grenvillian remnants in the Northern Andes: Rodinian and Phanerozoic paleogeographic perspectives
2010
- U–Pb zircon ages of the “Antioquian Batholith”: geochronological constraints of Late Cretaceous magmatism in the Central Andes of Colombia
2007