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Seminar, Julie Brigham-Grette- The impact of Lake El'gygytgyn, NE Russia, on our knowledge of polar climate

November 30 @ 3:00 pm - 4:00 pm MST

Julie Brigham-Grette, Professor; GSA Continental Scientific Drilling Division Distinguished Lecturer, U. Mass Amherst

Dr. Brigham-Grette

The impact of Lake El’gygytgyn, NE Russia, on our knowledge of polar climate: this changes everything

Dr. Brigham-Grette is a leading expert in Arctic environmental change. She has been conducting research in the Arctic for 40+ years, including eight field seasons in remote parts of northeast Russia. Julie served as a postdoctoral fellow in Bergen Norway and at the University of Alberta before taking a faculty position at the University of Massachusetts-Amherst.  She is an elected Fellow of the Geological Society of America and the American Geophysical Union, and President of the Quaternary Geology & Geomorphology Division of GSA. Julie’s research expertise is in marine and terrestrial sediment records of Arctic climate change over the last few million years. She led the International Continental Scientific Drilling Program at Lake El’gygytgyn in NE Russia collecting a record of Arctic change over the past 3.6 million years and has strong interests in public engagement, using science to inform policy on coastal management challenges with rising sea level.  Dr. Brigham-Grette will present her work on drilling Lake El’gygytgyn to interested universities and events.  Lake El’gygytgyn was formed by a large meteorite impact in NE Russia about 3.6 Million years ago during the warm middle Pliocene. Scientific drilling in 2009 into a frozen ice-covered lake without any road infrastructure was logistically challenging, yet the project recovered a continuous paleoclimate sediment record (318 m) and impact suevites (200m) through grit, and international collaboration between in Russia, USA, Germany, and Austria. The Lake El’gygytgyn record provides the first impressions we have of how the Arctic borderlands evolved from forested landscapes and sea-ice free summers during the Pliocene to an Arctic of warm interglacial and cold glacial cycles in recent time.

When: November 30th, 2020
Time: 3:00 PM
Where: Zoom Meeting ID: 980 2424 6503

Dr. Brigham-Grette will also be meeting with students for a lunch-zoom from 12-1.

Meeting ID: 961 7921 3670