Research

Below are a few of my current research interests

Reconstructing the productivity of Earth's biosphere

A large portion of my work has been focused on whether we can quantify the productivity of the ancient biosphere. As primary producers govern much of the redox evolution and marine chemistry of our planet, I have worked hard to place constraints on this critical variable.

Cryogenian Glaciations (Snowball Earth)

Snowball Earth glaciations captured my interest to study Earth history. The observation that the Earth was once completely covered in ice provides a fascinating series of follow up questions and luckily strata around the world provide an exciting record to answer these.

Revisiting the fidelity of sedimentary archives

Underlying many works archiving the evolution of our planet is that sedimentary archives are faithful recorders of marine chemistry. Recent work primarily utilizing Ca isotopes are raising serious concerns about this assumption which is beginning to change the questions which should be asked from sedimentary archives.