The Story of Ancient Lava Flows Beneath Lake Superior

The Story of Ancient Lava Flows Beneath Lake Superior Join our featured Badgertalks presenter, Esther K. Stewart to learn the story of ancient lava flows beneath Lake Superior. Nearly one billion years ago, beneath what is now Lake Superior, lava flowed from shield volcanoes and fissures. This talk describes what the environment may have been like as this Midcontinent Rift developed. Esther K. Stewart is a geologist with the Wisconsin Geological and Natural History Survey where she uses geologic mapping to address questions about the rocks that underlie Wisconsin. Prior to joining the state survey, she worked for ExxonMobil in Houston, TX. She has a masters degree from Idaho State University. The Thursdays at the U weekly series is free and open to the public thanks to support from the UW-Eau Claire – Barron County Foundation. Neither seating reservations nor parking permits are needed for in-person attendees. Although in-person attendance is encouraged, most talks in the series are livestreamed (https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fvideoplayer.telvue.com%2Fplayer%2FHDwuV3is8s5nNzWpdoDe7ey1dmO7F3CA%2Fplaylists%2F8694%2Fstream%2F865%3Fautostart%3Dtrue%26sequenceNumber%3D1%26showtabssearch%3Dtrue&data=05%7C02%7CWALKOFDS%40uwec.edu%7Cf13a5e6bbf2c4308312f08dd03880331%7Cdd068b97759349388b3214faef2af1d8%7C0%7C0%7C638670604907012062%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=UuQsjo7nHe3gTwTkZAnb6hSKH6wAboo%2FQ3v8oFpyokY%3D&reserved=0). They also are archived and can be watched later on the Thursdays at the U (https://barron.uwec.edu/business-community/free-viewing-lecture-series/?_ga=2.171377317.402834410.1672450604-1799238988.1655731488) webpage.