Lessons /

Explorer Classroom | Sarah Carmichael

October 15, 2019

2:00 pm to 2:45 pm EST

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10/15/2019 2:00 pm 10/15/2019 2:45 pm Europe/London Explorer Classroom | Sarah Carmichael -

Explorer Classroom | Sarah Carmichael

Sarah Carmichael is a geochemist who studies what the chemistry of rocks and minerals can tell us about our environment, both today as well as in deep time. Her research has taken her from the tops of mountains in the Alps, the northern Rockies, and the Gobi Altai, to the depths of caves in the Appalachians, to the flanks of volcanoes in the East African Rift, all the way to the bottom of the Pacific Ocean in the Alvin submersible. Sarah currently studies how microbes make minerals (particularly in caves and wetlands) as well as the geochemistry of mass extinctions (particularly the Late Devonian mass extinctions that happened between 375 and 350 million years ago, which decimated coral reefs and forever changed the evolutionary trajectory of fish). She is one of the lead scientists for the DAGGER group (Devonian Anoxia, Geochemistry, Geochronology, and Extinction Research), which is an international team of geoscientists and paleontologists who work in a variety of locations around the world studying Devonian mass extinction events. The team is currently concentrating on the ancient island systems preserved in the rocks of the Gobi Altai region of southwestern Mongolia. Sarah's specialty is looking for signatures of oxygen loss in ancient ocean water using minerals and the chemical information preserved in them; her process is similar to a crime scene investigator working with trace evidence, except in her work the crime scene is a mass extinction.

October 15, 2019

2:00 pm to 2:45 pm EST

Available spots:

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10/15/2019 2:00 pm 10/15/2019 2:45 pm Europe/London Explorer Classroom | Sarah Carmichael -

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