(Photo © Gigi Cohen)

Dr. Stephen R. Meyers
Associate Professor
Department of Geoscience

Ph.D., Northwestern University, 2003

Quantitative Stratigraphy, Paleoclimatology & Paleoceanography, Sedimentary Geochemistry

Download Curriculum Vitae

VIEW Google Scholar Citations

astrochron: An R package for Astrochronology

The latest public beta (version 0.3.1) is available for download from CRAN.

If you use astrochron, please cite it as:
Meyers, S.R. (2014). astrochron: An R Package for Astrochronology. http://cran.r-project.org/package=astrochron

Please see these instructions for the installation of R and astrochron: PDF


You can find an EOS article on the 2014 IsoAstro Workshop here: PDF
The next workshop is in the planning for summer 2016.


My research primarily addresses three topics: the mechanisms of climate change, the controls on the global carbon cycle, and the measurement of geologic time. These subjects are fundamentally interrelated, as there are linkages between climate and the carbon cycle, while the establishment of reliable chronologies is essential for evaluating climate forcing mechanisms and determining rates of climatic and biogeochemical change in Earth's past. My interdisciplinary approach to investigating these topics integrates data (primarily geochemical, sedimentologic and stratigraphic) with novel modeling and statistical techniques, to unravel the history of the climate system, oceans and geosphere.

While I am involved in a wide range of geoscience research, at present I am especially active in the development of quantitative approaches for the construction and evaluation of astronomical time scales, the intercalibration of astrochronologic and radioisotopic data, and the evaluation of Earth System responses to orbital-insolation changes.


  • CAREER: Deciphering the Beat of a Timeless Rhythm - The Future of Astrochronology, Stephen Meyers (PI), NSF Sedimentary Geology and Paleobiology Program. (view abstract)
  • Collaborative Research: Evolution of the Climate Continuum- Late Paleogene to Present, Stephen Meyers (Lead-PI) and Linda Hinnov (Co-PI), NSF Paleo Perspectives on Climate Change (Lead program Marine Geology and Geophysics). (view abstract)
  • Collaborative Research: Integrating Radioisotopic and Astronomical Time Scales for the Cretaceous, Bradley Singer (Lead-PI), Stephen Meyers (Co-PI), and Bradley Sageman (Co-PI), NSF Sedimentary Geology and Paleobiology Program. (view abstract)


    Kristin Larkins (M.S., 2009) THESIS

    Bo He (M.S., 2010) THESIS

    Dylan Malynn (M.S., 2011) THESIS

    Wesley Ingram (Ph.D., 2013) DISSERTATION

    Miao Du (M.S., 2013)

    Andrew Walters (M.S., 2013)

    Wasinee Aswasereelert (Ph.D., 2014)

    Chao Ma (M.S., 2012; now a Ph.D. Candidate)

    Page last updated January 27, 2015

    Unless otherwise noted, all content © S. Meyers