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Contact Info:
Tufts University
Dept. of Earth and
Ocean Sciences
Lane Hall, Room 008
Medford, MA 02155

Office: 617-627-3494
Fax: 617-627-3584

Jennifer Axler
Mineralogy and Igneous and Metamorphic Petrology

B.A. 2011 Smith College
M.Phil 2014 Yale University
Ph.D. 2017 Yale University

Courses Taught
EOS 11: Mineralogy
EOS 12: Igneous and Metamorphic Petrology

Research Interests
My research focuses on metamorphic rocks using high temperature geochemistry to tell the story of their formation and subsequent deformation In particular, I focus my research on garnet, as it is one of the best recorders of the evolution of metamorphic rocks. I use garnet chemistry and inclusions in garnet to retrace metamorphic history. The chemistry of garnet combined with the chemistry of adjacent minerals can be used to determine the past pressures and temperatures of metamorphism. Garnet can also act as a robust container, capturing fluids and minerals as it grows. These inclusions preserve an instant in time, unrecorded in other minerals, and give insight into the metamorphic evolution of a terrane. My work has focused on documenting textures of garnets that have experienced extreme metamorphic environments, either ultrahigh temperature (>900 °C) or ultrahigh pressure ( ≥2.7 GPa) that can now serve as "exploration tools" for extreme metamorphic conditions elsewhere.

Ultrahigh temperature (~1000 °C, 1 GPa)
Brimfield schist from northeastern CT,
showing pink garnets and kyanite pseudomorphs
after sillimanite in blue-grey.

Another, related, aspect of my research has been zircon geochronology and zircon stability to relate metamorphic events to the overall tectonic history of a region. Field work is critical to all aspects of my research as it is important to map and get representative samples to have a complete picture of a geologic region.