I am a geologist and postdoctoral scholar at Pennsylvania State University. I use geochemistry, paleontology, and sedimentation/stratigraphy to reconstruct paleoceanographic conditions. I use geochemical proxy records from marine shales and limestones to understand the oxygenation and/or deoxygenation of ancient oceans. The redox (reduction-oxidation) conditions of ancient oceans can have major impacts on animal evolution and … Continue reading Chelsie Bowman