Daniel O Breecker

Areas of Expertise

The Breecker Group studies biogeochemical processes occurring at or near the land surface. We study soils and paleosols, caves and stalagmites, and other materials, such as volcanic glass, that give us insight into ancient Earth. We study timescales ranging from seasonal cycles to hundreds of millions of years. We use observations, mathematical models and both laboratory and field-based experiments to address an evolving range of questions. To learn more about the research we are doing, please see our research group website.

Postdocs

Jiawei Da

Elizabeth Cassel, now at the University of Idaho
Liz is advancing the understanding of the paleoelevation of the western United States and the Western Cordillera in South America. She is a leader in the use of felsic volcanic glasses to determine the past elevation of Earth's land surface.

Timothy Gallagher, now at Kent State University

Graduate Students

August R Aalto (Supervisor)

Nicole Ferrie (Co-supervisor)
Nicole Ferrie is a Ph.D. student interested in utilizing geochemical behavior to research seismologic processes and paleoclimate reconstruction. Her research focuses on using boron adsorption and isotopic fractionation (1) as a fluid tracer in shallow subduction complexes and (2) as a proxy for paleoatmospheric CO2 reconstruction in paleosols. Nicole performs experimental work on both subducted rock from the Nankai Trough and...

Kiara Gomez, Ph.D., 2022 (Committee Member)
Jackson School of Geosciences

Evan Ramos, Ph.D., 2021 (Co-supervisor)
Department of Geosciences

Lily Serach, Ph.D., 2021 (Supervisor)
Department of Geosciences

Natasha Sekhon, Ph.D., 2021 (Co-supervisor)
Department of Geosciences

Lily Jaskcon, Ph.D., 2019 (Committee Member)

Peter Carlson, Ph.D., 2018 (Co-supervisor)

Sol Cooperdock, M.S., 2017 (Supervisor)

John Warden, Ph.D., 2016 (Co-supervisor)

Tim Charlton, M.S., 2016 (Co-supervisor)

Chris Cacciatore, M.S., 2016 (Supervisor)

Michael Patson, M.S., 2015 (Supervisor)

Brandon Okafor, M.S., 2014 (Supervisor)

Marlo Gawey, M.S., 2013 (Supervisor)

Lacey Pyle, M.S., 2012 (Supervisor)

Nate Meyer, M.S., 2012 (Supervisor)

Kyle Meyer, M.S., 2012 (Co-supervisor)

Year	Semester	Course
2023	Spring	GEO 391	Envirnmentl Isotope Geochem
2023	Spring	GEO 387C	Aqueous Geochemistry
2023	Spring	GEO 476M	Aqueous Geochemistry
2023	Spring	GEO 376E	Environmental Isotope Geochem
2022	Fall	GEO 401	Physical Geology
2022	Summer	GEO f382C	Groundwater Field Methods
2022	Summer	GEO f376L	Field Meths In Groundwtr Hydrl
2021	Fall	GEO 401	Physical Geology
2021	Spring	GEO 376E	Environmntl Isotope Geochem-Wb
2021	Spring	GEO 391	Envirnmentl Isotope Geochem-Wb
2020	Fall	GEO 401	Physical Geology-Wb
2020	Fall	GEO 401	Physical Geology
2019	Fall	GEO 401	Physical Geology
2019	Summer	GEO f660B	Field Geo-Tx/Nm/Co/Wy/Mt/Id/Ut
2019	Spring	GEO 388H	Environmental Isotope Geochem
2019	Spring	GEO 376E	Environmental Isotope Geochem
2018	Fall	GEO 401	Physical Geology
2018	Summer	GEO f660B	Field Geo-Tx/Nm/Co/Wy/Mt/Id/Ut
2018	Spring	GEO 191	Proposal Writing
2018	Spring	GEO 394	Rsch In Geological Sciences
2018	Spring	GEO 291	Asian Monsoon
2017	Fall	GEO 394	Rsch In Geological Sciences
2017	Fall	GEO 401	Physical Geology
2017	Spring	GEO 394	Rsch In Geological Sciences
2017	Spring	GEO 191	Proposal Writing
2017	Spring	GEO 388H	Environmental Isotope Geochem
2017	Spring	GEO 376E	Environmental Isotope Geochem
2016	Fall	GEO 394	Rsch In Geological Sciences
2016	Fall	GEO 401	Physical Geology
2016	Spring	GEO 191	Proposal Writing
2016	Spring	GEO 394	Rsch In Stbl Isotp Biogeochem
2015	Fall	GEO 394	Rsch In Geological Sciences
2015	Fall	GEO 401	Physical Geology
2015	Spring	GEO 394	Rsch In Stbl Isotp Biogeochem
2015	Spring	GEO 191	Proposal Writing
2015	Spring	GEO 388H	Environmental Isotope Geochem
2015	Spring	GEO 376E	Environmental Isotope Geochem
2014	Fall	GEO 394	Rsch In Stbl Isotp Biogeochem
2014	Fall	GEO 401	Physical Geology
2014	Spring	GEO 191	Proposal Writing
2014	Spring	GEO 394	Rsch In Stbl Isotp Biogeochem

Research Group Website