Cameron M. Mercer, Ph.D.
Cameron Mercer is a Research Geologist working in the Denver Argon Geochronology Laboratory at the Geology, Geophysics, and Geochemistry Science Center.
I joined the Denver Argon Geochronology Laboratory at the USGS Geology, Geophysics, and Geochemistry Science Center as a Mendenhall postdoctoral fellow in 2020. I was previously a postdoc in the Mid-Atlantic Noble Gas Research Laboratory at NASA Goddard Space Flight Center. I received my PhD from the School of Earth and Space Exploration at Arizona State University in 2017, and a BA in Geology and Physics from Middlebury College in 2011.
My previous research mostly focused on high spatial resolution and incremental heating 40Ar/39Ar geochronology of lunar impact melt rocks. I also performed thermal-kinematic numerical modeling to assess Ar loss due to the formation of melt veins in polymict impact breccias, and I developed a software tool to promote more robust reuse of previously published K-Ar and 40Ar/39Ar datasets. My current research focuses on 40Ar/39Ar geochronology of igneous rocks and alteration minerals associated with a variety of critical mineral deposits in the U.S.
Professional Experience
2020-present, Research Geologist/Mendenhall Postdoctoral Fellow, U.S. Geological Survey
2019-2020, Postdoctoral Fellow, CRESST II/Catholic University of America (CUA)/NASA Goddard Space Flight Center (GSFC) Code 698
2017-2019, Postdoctoral Research Associate, School of Earth and Space Exploration, Arizona State University
Education and Certifications
Ph.D. Geology, School of Earth and Space Exploration, Arizona State University, 2017
B.A. Geology and Physics, Middlebury College, 2011
Honors and Awards
2016, Stephen E. Dwornik Planetary Geoscience Student Paper Award (best graduate poster, 47th Lunar and Planetary Science Conference)
2012, Eugene M. Shoemaker Impact Cratering Award
2011, Charles G. Doll Award (best undergraduate presentation, Vermont Geological Society Spring Meeting)
2010, Stephen E. Dwornik Planetary Geoscience Student Paper Award (best undergraduate poster, 41th Lunar and Planetary Science Conference)
Science and Products
Argon Geochronology
Argon Data for samples from the Elkhead and Rabbit Ears Mountains, northern Colorado, USA
Geochemical analyses of rock samples collected from the Judith Mountains and Crazy Mountains alkalic complexes, Montana
Geochemical data include major, minor and trace element results for 42 alkaline silicate igneous rock samples. Samples were collected from natural exposures/outcrops during field work in the Central Montana Alkaline Province (CMAP) during the summer of 2022. All samples were analyzed by the U.S. Geological Survey contract laboratory, SGS Labs. Major, minor, and trace elements were determined via w
U-Pb detrital zircon data and Ar feldspar data from middle Cenozoic sandstones and volcanic tuffs from southern Nevada, USA
Argon and SHRIMP-RG Data for Magmatic Steam Alunite, Sericite, and Zircon from Alunite Ridge and Deer Trail Mountain, Marysvale, Utah
Using the potassium-argon laser experiment (KArLE) to date ancient, low-K chondritic meteorites
Mantle melting in regions of thick continental lithosphere: Examples from Late Cretaceous and younger volcanic rocks, Southern Rocky Mountains, Colorado (USA)
Paleogene sedimentary basin development in southern Nevada, USA
The Mount Weld rare earth element deposit, Western Australia: A carbonatite-derived laterite
Carbonatite-hosted rare earth element (REE) deposits are the primary source of the world’s light REEs and have the potential to be a source of heavy REEs. The Mount Weld REE deposit in Western Australia is hosted in a lateritic sequence that reflects supergene enrichment of the underlying carbonatite complex. Similar to other carbonatite-related ore deposits, ore from Mount Weld displays extreme l
40Ar/39Ar geochronology of magmatic-steam alunite from Alunite Ridge and Deer Trail Mountain, Marysvale Volcanic Field, Utah: Timing and duration of miocene hydrothermal activity associated with concealed intrusions
Interpreting and reporting 40Ar/39Ar geochronologic data
Time scales of porphyry Cu deposit formation: insights from titanium diffusion in quartz
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Argon Geochronology
Argon Data for samples from the Elkhead and Rabbit Ears Mountains, northern Colorado, USA
Geochemical analyses of rock samples collected from the Judith Mountains and Crazy Mountains alkalic complexes, Montana
Geochemical data include major, minor and trace element results for 42 alkaline silicate igneous rock samples. Samples were collected from natural exposures/outcrops during field work in the Central Montana Alkaline Province (CMAP) during the summer of 2022. All samples were analyzed by the U.S. Geological Survey contract laboratory, SGS Labs. Major, minor, and trace elements were determined via w
U-Pb detrital zircon data and Ar feldspar data from middle Cenozoic sandstones and volcanic tuffs from southern Nevada, USA
Argon and SHRIMP-RG Data for Magmatic Steam Alunite, Sericite, and Zircon from Alunite Ridge and Deer Trail Mountain, Marysvale, Utah
Using the potassium-argon laser experiment (KArLE) to date ancient, low-K chondritic meteorites
Mantle melting in regions of thick continental lithosphere: Examples from Late Cretaceous and younger volcanic rocks, Southern Rocky Mountains, Colorado (USA)
Paleogene sedimentary basin development in southern Nevada, USA
The Mount Weld rare earth element deposit, Western Australia: A carbonatite-derived laterite
Carbonatite-hosted rare earth element (REE) deposits are the primary source of the world’s light REEs and have the potential to be a source of heavy REEs. The Mount Weld REE deposit in Western Australia is hosted in a lateritic sequence that reflects supergene enrichment of the underlying carbonatite complex. Similar to other carbonatite-related ore deposits, ore from Mount Weld displays extreme l
40Ar/39Ar geochronology of magmatic-steam alunite from Alunite Ridge and Deer Trail Mountain, Marysvale Volcanic Field, Utah: Timing and duration of miocene hydrothermal activity associated with concealed intrusions
Interpreting and reporting 40Ar/39Ar geochronologic data
Time scales of porphyry Cu deposit formation: insights from titanium diffusion in quartz
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.