Where is Lake El’gygytgyn?

Lake El’gygytgyn, formed by an asteroid impact about 3.6 million years ago, gives scientists climate change clues via an extracted sediment core.

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Among the many challenges facing the scientific community is determining why and how the Arctic climate system evolved from a warm forested ecosystem into a cold permafrost ecosystem. The Arctic region suffered this climate change sometime between 2 million and 3 million years ago during the mid-to-late Pliocene.

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Now scientists are unlocking clues from the rocks of Lake El’Gygytgyn, a site where 3.6 million years ago an asteroid impacted the earth. The continuous depositional record scientists are studying from the site of the lake will provide, for the first time, an Arctic terrestrial perspective, reflecting new information of the mechanisms and dynamics of glacial-interglacial and millennial-scale change in the high-latitude region.

[ video ] Teacher Training Workshop 2013: Building System Science into the Classroom
[ video ] Julie Brigham-Grette Describes Research at Lake El’gygytgyn
[ video ] {upcoming} Core Details
[ video ] Core Correlation Challenges
[ video ] {upcoming} Leaf Wax, How It Answers Part of the Puzzle
[ video ] What a 3.6 Million Year Earth Core Reveals
[ video ] The Center of the Bering Land Bridge
[ video ] The Thrill To Drill In The Chill

People: Julie Brigham-Grette, Isla Castaneda, Julia Gottchalk, Kenna Wilkie

Sunken Treasure under Lake El’gygytgyn (Laura Nielsen) Historical Climate
“This is not what we expected” said Julie Brigham-Grette in video describing work at Lake El’gygytgyn (Liz O’Connell) Historical Climate
Arctic lakes getting a closer look (Ned Rozell) Permafrost, The Atmosphere
International Polar Week and Climate Predictions in Ice (Laura Nielsen) Historical Climate, Climate Change
Earth’s orbital dynamics (Laura Nielsen) The Earth in Space
Orbital dynamics and climate (Laura Nielsen) The Earth in Space, Historical Climate
Proxy data from past climates (Laura Nielsen) Historical Climate
Data from an impact crater (Laura Nielsen) Historical Climate
Inter-hemispheric climate coupling (Laura Nielsen) Historical Climate

Where is Lake El’gygytgyn? project

Related: Climate Change Watch

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3 Responses to “Where is Lake El’gygytgyn?”

Carol Bogdasarian on September 1st, 2011 4:10 pm:

What happened geologically at the opposite side of the earth at the time of the impact at Lake El’Gygytgyn?


Tim Martin on June 12th, 2012 12:14 pm:

@Carol, writing as a member of the expedition.

Although the impact that formed Lake E certainly was a major shock to the nearby environment, It was not large enough to have global impact or consequence. Near by, much of the earth would have been scorched due to the energy release of the impact. It is estimated that the crater itself may have been hot for centuries. Regionally the area would have been covered by ejecta and the numerous local faults indicate that the impact shattered and melted surrounding rocks. These effects would have been limitted to Chukotka (NE Russia)

More about the impact may be read here: http://www.univie.ac.at/geochemistry/koeberl/publikation_list/294-Elgygytgyn-structure-MAPS2007.pdf


Atanacio Luna on June 2nd, 2013 3:37 pm:

Julie Briham-Grette,
Your work is an amazing new window into understanding our Planet’s mechanics, and its behavior through time. Thanks.
.
I am an amateur, with a capital A. Still, from our studies of atmospheric energy dynamics we (“I,” can’t blame anyone else,) came up with an interesting application of theory to explain plate tehtonics mostly as a result of GIA, and other water processes on the surface. It is strictly conjecture, but you might find it fun to mull over.
.
If you feel like being so distracted, perhaps you would like to have look at our musings. It is very rough gesticulation of about 15 pages, double-spaced.

Your description of rapid glaciation works well with our concept, or visa-versa. I would love to have someone qualified look at these rough ideas.

Our main work, is even more tenuous research into harnessing atmospheric kinetic energy. It’s 40% larger than insolation, as you probably know. But, no professional wants to be associated with us right now. We are working on reversing that into its mirror image, this year.

Congratulations, and thanks for your marvelous work.
Atanacio Luna


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