Student Profile

Jackson School of Geosciences

Chelsea Mackaman-Lofland

Chelsea  Mackaman-Lofland
B.S., Earth and Space Sciences, University of Washington, 2012
Ph.D., Geoscience, University of Texas at Austin, expected 2020

Office: ROC , EPS


My research investigates structural deformation, sedimentary basin development, and mountain building along convergent plate margins. I use a combination of structural geology, sedimentology, stratigraphy, thermochronology, and geochronology to understand basin evolution and mountain building processes, with particular interest in how deformation style and basin architecture respond to changes in convergent margin tectonic regime.

My Ph.D. work in the southern Central Andes (San Juan and Mendoza provinces, Argentina) investigates:
- Long-lived (~200 Myr) retroarc basin evolution during variable Mesozoic-Cenozoic deformation
modes and tectonic conditions
- The timing and geometry of shortening during Neogene growth of the modern Andes and pronounced
changes in subduction angle
- Sediment provenance, flexural subsidence, and foreland basin evolution in response to thin-skinned vs.
basement-involved thrust loading

My undergraduate research at the University of Washington examined particle size-density relationships in pyroclastic density current deposits from the May 18, 1980 Mt. St. Helens eruption to elucidate emplacement dynamics (supervisor: Dr. Brittany D. Brand, see CV and publications for additional information).

Graduate Research Fellowship - National Science Foundation (2016 - 2019)

Off-Campus Research Award - Jackson School of Geosciences (2016)

Young Explorers Grant - National Geographic (Committee for Research and Exploration) (2015)

Graduate Student Research Grant - Geological Society of America (2015)

Graduate Student Research Supplementary Award - Geological Society of America (Mineralogy, Geochemistry, Petrology, and Volcanology Division) (2015)

Graduate Student Grants-in-Aid - American Association of Petroleum Geologists (2015)

Graduate Student Fellowship - Jackson School of Geosciences (2014 - 2015)

Summa Cum Laude - University of Washington (2012)

Scholarship - Dovie Samuelson Endowment (2009 - 2012)

Scholarship - Washington NASA Space Grant Consortium (2009 - 2012)

Educational Coach, GeoFORCE, 11th Grade Summer Academy: Geology of the Pacific Northwest (2019)

Instructor, GeoFORCE, 12th Grade Summer Academy: Geology of Central Texas (2019)

Co-Coordinater, Lithosphere & Deep Earth Seminar, Jackson School of Geosciences, University of Texas at Austin (2019 - Present)

Co-Convener & Chair, AGU Session #50493: Mountain Building in Collisional and Cordilleran Orogenic Systems, AGU Fall Meeting (2018)

Instructor, GeoFORCE, 11th Grade Summer Academy: Geology of the Pacific Northwest (2017)

Student Liaison / Representative, International Interdisciplinary Interest Group, Geological Society of America (2015 - 2017)

Kinematic development and structural architecture of the southern Central Andean fold-thrust belt (31-33 deg S): Implications for Andean deformation modes and driving mechanisms, Poster presentation. GSA Fall Meeting, Phoenix, AZ (2019)

Andean deformation and foreland basin evolution during Neogene changes in subduction zone geometry (32-33 deg S), Oral Presentation. AGU Fall Meeting, Washington D.C. (2018)

Mesozoic to Early Cenozoic retroarc basin evolution in response to changing tectonic regimes, southern Central Andes, Oral presentation. AGU Fall Meeting, New Orleans, LA (2017)

Preliminary depositional and provenance records of Mesozoic basin evolution and Cenozoic shortening in the High Andes, La Ramada fold-thrust belt, southern-central Andes (32-33 deg S), Poster presentation. AGU Fall Meeting, San Francisco, CA (2015)

Particle size-density relationships in pyroclastic deposits: Using component subpopulations to elucidate depositional conditions, Poster presentation. AGU Fall Meeting, San Francisco, CA (2012)

A closer look at the pyroclastic density current deposits of the May 18, 1980 eruption of Mt St Helens, Poster presentation. AGU Fall Meeting, San Francisco, CA (2010)