Science on Tap: Great Lakes Basin - An Earth Science Perspective

This event is hosted by Science on Tap.

When you think “Great Lakes” most people picture the large interconnected freshwater lakes in North America known as Lakes Superior, Michigan, Huron, Erie, and Ontario. These are considered one of the planet’s most significant natural features due to their vast size, fresh water supply, beautiful coastlines, boating, fishing, and the border between the United States and Canada.

Together we solve the mystery about the origin of the lakes. Learn how billions of years of geological history, beginning with ancient volcanic and tectonic activity, followed by the creation of vast sedimentary rock layers in shallow seas, and culminating in the carving by glaciers during the Ice Age created the current lakes and more. The immense power of geological processes not only created a landscape that reflects the long and complex history of this region, but these processes resulted in a wide variety of interesting rocks, fossils, and minerals, including ores of copper and iron, that became important economic assets of this nation.

About Our Speaker
Johan Maertens is a mineralogy citizen scientist. He collects minerals in near-home exposures and documents localities with an emphasis on crystal habits – especially calcite. Mr. Maertens is an active member in local and regional mineralogical associations and is past president of the Pennsylvania Earth Sciences Association. He has won awards from the Eastern Federation of Mineralogical and Lapidary Societies Inc., and the Midwest Federation of Mineralogical and Geological Societies Inc., as editor and author for regional bulletins.

Parking Information
Free street parking is available.

Food Options
You may bring food with you.

About Science on Tap
Our mission is to bridge the gap between science educators, researchers and the public by providing a forum for individuals to learn about the latest scientific research and its practical applications. We are committed to promoting evidence-based thinking and policies through our monthly science education program, allowing our audiences to gain a deeper understanding of how science can positively impact our society.