education and training
- B.S., Eastern Illinois University
- M.S., University of New Mexico
- Ph.D., University of Hawaii, Manoa
McCoy, Tim
Chair, Curator of Meteorites
Meteorites; igneous evolution of small bodies in the early solar system; martian volcanological history derived from meteorites.
Background And Education
Research And Grants
co-principal investigator on
investigator on
- missing activity
- missing activity
- Alteration, metamorphism and melting in the Fe-S-O system awarded by National Aeronautics and Space Administration (NASA) - Shared Services Center
- An Integrated Chemical-Spectroscopic Study of the Mantle of Vesta awarded by National Aeronautics and Space Administration (NASA)
- Investigating the Timing of Alteration and Source of Volatiles on Mars awarded by Jet Propulsion Laboratory
- Mapping the Mineralogy of Mercury awarded by National Aeronautics and Space Administration (NASA)
- OSIRIS REx awarded by University of Arizona
- Psyche: Journey to a Metal World awarded by Arizona State University
- Psyche: Journey to a Metal World awarded by Arizona State University
- Psyche: Journey to a Metal World awarded by Arizona State University
- The Deep Carbon Observatory Instrumentation Fund - Phase II awarded by Carnegie Institution of Washington
Publications
selected publications
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article
- Particle Size-Frequency Distributions of the OSIRIS-REx Candidate Sample Sites on Asteroid (101955) Bennu 2021
- Spectral Characterization of Bennu Analogs Using PASCALE: A New Experimental Set-Up for Simulating the Near-Surface Conditions of Airless Bodies 2021
- The Allende meteorite: Landmark and cautionary tale 2021
- The Fe/S ratio of pyrrhotite group sulfides in chondrites: An indicator of oxidation and implications for return samples from asteroids Ryugu and Bennu 2021
- Advances in Cosmochemistry Enabled by Antarctic Meteorites 2020
- Author Correction: Shape of (101955) Bennu indicative of a rubble pile with internal stiffness 2020
- Bright carbonate veins on asteroid (101955) Bennu: Implications for aqueous alteration history 2020
- Exogenic basalt on asteroid (101955) Bennu 2020
- Global Patterns of Recent Mass Movement on Asteroid (101955) Bennu 2020
- Insights into the formation of silica-rich achondrites from impact melts in Rumuruti-type chondrites 2020
- Observations, Meteorites, and Models: A Preflight Assessment of the Composition and Formation of (16) Psyche 2020
- Origin and age of metal veins in Canyon Diablo graphite nodules 2020
- Outward migration of chondrule fragments in the early Solar System: O -isotopic evidence for rocky material crossing the Jupiter Gap 2020
- Qarabawi's Camel Charm: Tracing the meteoritic origins of a cultural artifact 2020
- Sulfide-dominated partial melting pathways in brachinites 2020
- Advanced Curation of Astromaterials for Planetary Science 2019
- Best practices for the use of meteorite names in publications 2019
- Craters, boulders and regolith of (101955) Bennu indicative of an old and dynamic surface 2019
- Evidence for widespread hydrated minerals on asteroid (101955) Bennu 2019
- Genetics, crystallization sequence, and age of the South Byron Trio iron meteorites: New insights to carbonaceous chondrite (CC) type parent bodies 2019
- Grove Mountains (GRV) 020043: Insights into acapulcoite-lodranite genesis from the most primitive membert 2019
- Lewis Cliff 86211 and 86498: Metal-sulfide liquid segregates from a carbonaceous chondrite impact melt 2019
- Properties of rubble-pile asteroid (101955) Bennu from OSIRIS-REx imaging and thermal analysis 2019
- Reclassification of four aubrites as enstatite chondrite impact melts: Potential geochemical analogs for Mercury 2019
- Spectral characterization of analog samples in anticipation of OSIRIS-REx's arrival at Bennu: A blind test study 2019
- The Milton pallasite and South Byron Trio irons: Evidence for oxidation and core crystallization 2019
- The dynamic geophysical environment of (101955) Bennu based on OSIRIS-REx measurements 2019
- The operational environment and rotational acceleration of asteroid (101955) Bennu from OSIRIS-REx observations 2019
- The unexpected surface of asteroid (101955) Bennu 2019
- Acapulcoite-lodranite meteorites: Ultramafic asteroidal partial melt residues 2018
- Experimental insights into Stannern-trend eucrite petrogenesis 2018
- Hopewell Meteoritic Metal Beads: Clues to Trade 2,000 Years Ago 2018
- Spectral evidence for amorphous silicates in least-processed CO meteorites and their parent bodies 2018
- The retention of dust in protoplanetary disks: Evidence from agglomeratic olivine chondrules from the outer Solar System 2018
- A Low O/Si Ratio on the Surface of Mercury: Evidence for Silicon Smelting? 2017
- Compositional terranes on Mercury: Information from fast neutrons 2017
- Geochemistry, mineralogy, and petrology of boninitic and komatiitic rocks on the mercurian surface: Insights into the mercurian mantle 2017
- Igneous lithologies on asteroid (4) Vesta mapped using gamma-ray and neutron data 2017
- OSIRIS-REx: Sample Return from Asteroid (101955) Bennu 2017
- Partial Melting of Oxidized Planetesimals: An Experimental Study to Test the Formation of Oligoclase-rich Achondrites Graves Nunataks 06128 and 06129 2017
- Relict chondrules in primitive achondrites: Remnants from their precursor parent bodies 2017
- The Anoka, Minnesota iron meteorite as parent to Hopewell meteoritic metal beads from Havana, Illinois 2017
- Evidence from MESSENGER for sulfur- and carbon-driven explosive volcanism on Mercury 2016
- Widespread evidence for high-temperature formation of pentlandite in chondrites 2016
- Aqueous Alteration on Asteroids: Linking the Mineralogy and Spectroscopy of CM and CI Chondrites 2015
- Asteroid (4) Vesta II: Exploring a geologically and geochemically complex world with the Dawn Mission 2015
- Chlorine on the Surface of Mercury: MESSENGER Gamma-Ray Measurements and Implications for the Planet’s Formation and Evolution 2015
- Constraints on the abundance of carbon in near-surface materials on Mercury: Results from the MESSENGER Gamma-Ray Spectrometer 2015
- Mineralogy, petrology, chronology, and exposure history of the Chelyabinsk meteorite and parent body 2015
- 2014 Service Award for Roy. S. Clarke 2014
- Enhanced sodium abundance in Mercury's north polar region revealed by the MESSENGER Gamma-Ray Spectrometer 2014
- Reply to comment on “Geochronology of the Martian meteorite Zagami revealed by U–Pb ion probe dating of accessory minerals” 2014
- Variations in the abundance of iron on Mercury's surface from MESSENGER X-Ray Spectrometer observations 2014
- X-ray absorption characterization of Cr in forsterite within the MacAlpine Hills 88136 EL3 chondritic meteorite 2014
- A Petrologic, Thermodynamic and Experimental Study of Brachinites: Partial Melt Residues of an R Chondrite-Like Precursor 2013
- Challenges in detecting olivine on the surface of 4 Vesta 2013
- Chondritic models of 4 Vesta: Implications for geochemical and geophysical properties 2013
- Composition of the Rheasilvia basin, a window into Vesta's interior 2013
- Compositional variability on the surface of 4 Vesta revealed through GRaND measurements of high-energy gamma rays 2013
- Distribution of iron on Vesta 2013
- Geochronology of the Martian meteorite Zagami revealed by U–Pb ion probe dating of accessory minerals 2013
- Neutron absorption constraints on the composition of 4 Vesta 2013
- The primary fO2 of basalts examined by the Spirit rover in Gusev Crater, Mars: Evidence for multiple redox states in the martian interior 2013
- CMOS Imaging X-Ray Spectroscopy for Planetary Science 2012
- Chemical heterogeneity on Mercury's surface revealed by the MESSENGER X-Ray Spectrometer 2012
- Color and Albedo Heterogeneity of Vesta from Dawn 2012
- Dawn at Vesta: Testing the Protoplanetary Paradigm 2012
- Elemental Mapping by Dawn Reveals Exogenic H in Vesta's Regolith 2012
- Magnesium-rich crustal compositions on Mercury: Implications for magmatism from petrologic modeling 2012
- Major-element abundances on the surface of Mercury: Results from the MESSENGER Gamma-Ray Spectrometer 2012
- Pitted Terrain on Vesta and Implications for the Presence of Volatiles 2012
- The Old Woman, California, IIAB iron meteorite 2012
- The Tafassasset Primitive Achondrite: Insights into Initial Stages of Planetary Differentiation 2012
- Variations in the abundances of potassium and thorium on the surface of Mercury: Results from the MESSENGER Gamma-Ray Spectrometer 2012
- A composite Fe,Ni-FeS and enstatite-forsterite-diopside-glass vitrophyre clast in the Larkman Nunatak 04316 aubrite: Origin by pyroclastic volcanism 2011
- Analysis of MESSENGER Gamma-Ray Spectrometer data from the Mercury flybys 2011
- Bounce Rock-A shergottite-like basalt encountered at Meridiani Planum, Mars 2011
- Combining meteorites and missions to explore Mars 2011
- Cosmogenic radionuclides in L5 and LL5 chondrites from Queen Alexandra Range, Antarctica: Identification of a large L/LL5 chondrite shower with a preatmospheric mass of approximately 50,000 kg 2011
- Evidence for mechanical and chemical alteration of iron-nickel meteorites on Mars: Process insights for Meridiani Planum 2011
- Field Reconnaissance Geologic Mapping of the Columbia Hills, Mars Based on MER Spirit and MRO HiRISE Observations 2011
- Group IVA Irons: New Constraints on the Crystallization and Cooling History of an Asteroidal Core with a Complex History 2011
- HED Meteorites and Their Relationship to the Geology of Vesta and the Dawn Mission 2011
- Hollows on Mercury: MESSENGER Evidence for Geologically Recent Volatile-Related Activity 2011
- Radioactive Elements on Mercury’s Surface from MESSENGER: Implications for the Planet’s Formation and Evolution 2011
- The Major-Element Composition of Mercury’s Surface from MESSENGER X-ray Spectrometry 2011
- The origin of Vesta's crust: Insights from spectroscopy of the Vestoids 2011
- Thermal and impact histories of reheated group IVA, IVB, and ungrouped iron meteorites and their parent asteroids 2011
- A coordinated spectral, mineralogical, and compositional study of ordinary chondrites 2010
- Analysis of ordinary chondrites using powder X-ray diffraction: 1. Modal mineral abundances 2010
- Analysis of ordinary chondrites using powder X-ray diffraction: 2. Applications to ordinary chondrite parent-body processes 2010
- Identification and Measurement of Neutron-absorbing Elements on Mercury's Surface 2010
- Mineralogical Evolution of Meteorites 2010
- Petrologic insights from the spectra of the unbrecciated eucrites: Implications for Vesta and basaltic asteroids 2010
- Pyroclast loss or retention during explosive volcanism on asteroids: Influence of asteroid size and gas content of melt 2010
- The evolution of a heterogeneous Martian mantle: Clues from K, P, Ti, Cr, and Ni variations in Gusev basalts and shergottite meteorites 2010
- Exploration of Victoria Crater by the Mars Rover Opportunity 2009
- Petrology of the unbrecciated eucrites 2009
- Spectral, mineralogical, and geochemical variations across Home Plate, Gusev Crater, Mars indicate high and low temperature alteration 2009
- The Evolution of Mercury's Crust: A Global Perspective from MESSENGER 2009
- The iron-nickel-phosphorus system: Effects on the distribution of trace elements during the evolution of iron meteorites 2009
- Ancient Asteroids Enriched in Refractory Inclusions 2008
- Detection of Silica-Rich Deposits on Mars 2008
- Geochemical properties of rocks and soils in Gusev Crater, Mars: Results of the Alpha Particle X-Ray Spectrometer from Cumberland Ridge to Home Plate 2008
- Hydrothermal origin of halogens at Home Plate, Gusev Crater 2008
- Hydrothermal processes at Gusev Crater: An evaluation of Paso Robles class soils 2008
- Iron mineralogy and aqueous alteration from Husband Hill through Home Plate at Gusev Crater, Mars: Results from the Mossbauer instrument on the Spirit Mars Exploration Rover 2008
- Meteorites on Mars observed with the Mars Exploration Rovers 2008
- Mineral evolution 2008
- Mineralogy of volcanic rocks in Gusev Crater, Mars: Reconciling Mossbauer, Alpha Particle X-ray spectrometer, and Miniature Thermal Emission Spectrometer spectra 2008
- Modeling fractional crystallization of group IVB iron meteorites 2008
- Overview of Mars surface geochemical diversity through Alpha Particle X-Ray Spectrometer data multidimensional analysis: First attempt at modeling rock alteration 2008
- Partial melting of H6 ordinary chondrite Kernouve: Constraints on the effects of reducing conditions on oxidized compositions 2008
- Reflectance and Color Variations on Mercury: Regolith Processes and Compositional Heterogeneity 2008
- Response to Comment on "Ancient Asteroids Enriched in Refractory Inclusions" 2008
- Spectroscopic Observations of Mercury's Surface Reflectance During MESSENGER's First Mercury Flyby 2008
- Spirit Mars Rover Mission to the Columbia Hills, Gusev Crater: Mission overview and selected results from the Cumberland Ridge to Home Plate 2008
- Structure, stratigraphy, and origin of Husband Hill, Columbia Hills, Gusev Crater, Mars 2008
- The formation and chronology of the PAT 91501 impact-melt L-chondrite with vesicle-metal-sulfide assemblages 2008
- Mineralogic constraints on sulfur-rich soils from Pancam spectra at Gusev Crater, Mars 2007
- Olivine-dominated asteroids and meteorites: Distinguishing nebular and igneous histories 2007
- Pyroclastic activity at Home Plate in Gusev Crater, Mars 2007
- The effect of Ni on element partitioning during iron meteorite crystallization 2007
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chapter
- Exploring the possible continuum between comets and asteroids 2018
- Mercury’s Global Evolution 2018
- The Geochemical and Mineralogical Diversity of Mercury 2018
- Crystallization of baddeleyite in basaltic rocks from Mars, and comparisons with the Earth, Moon, and Vesta 2017
- Differentiation under highly reducing conditions: New insights from enstatite meteorites and Mercury 2017
- Achondrite and irons: Products of magmatism on strongly heated asteroids 2015
- Meteorite misfits: Fuzzy clues to Solar System processes 2015
- Theo's Flow, Ontario, Candada: a terrestrial analog for the Martian nakhlite meteorites 2011
- Antarctic Meteorites: Exploring the Solar System from the Ice 2009
- Oxygen and asteroids 2008
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review
editor of
Affiliation
member of
Other
Location
- National Museum of Natural History Academic Department
