Monthly Archives: August 2016

On August 20, 2016, Dr. Tim Chowns explained how rocks melt to form magma and volcanoes. Unlike water, which melts and then crystallizes (at 32o F, Oo C) as a single mineral (ice), magmas crystallize numerous silicate minerals all with different melting/crystallization temperatures. In general light silicate minerals (rich in […]

Kevin McCauley from the Blue Heron Nature Preserve located at 4055 Roswell Road in Atlanta inspired 25+ attendees at the July Walk and Talk.  Kevin, noted as the “Beaver Whisperer”, explained the impact of the beavers in this island of green space in the busy city.   This oasis of […]