The Geology Flannelcast

It’s time for Listener Questions 6! We take your questions and answer them live on the podcast.

In this episode, the Flannelcasters talk about how metamorphic rocks are formed.

We tried something new this episode. In Ep. 101, we randomly picked a topic in a geology textbook for our episode theme.

The Flannelcasters discuss the Chesapeake Bay Impact event which occurred 35 million years ago.

The Flannelcasters talk about the three oldest rivers in the US - The New, French Broad, and Susquehanna Rivers. These rivers are also some of the oldest in the world.

The Flannelcasters revisit the topic of minerals. They talk about their favorite minerals, properties of minerals, and some fun stories about minerals.

The Flannelcasters talk about what causes lahars and the dangers associated with these volcanic-related events.

This week the Flannelcasters talk about Siletzia and some U.S. Pacific Northwest tectonics.

The Flannelcasters talk about extraterrestrial plutonium in the ocean, Darwin’s Arch in the Galapagos Islands falling down, and ghost forests releasing greenhouse gasses.

Links:
Extraterrestrial Plutonium Atoms Turn Up on Ocean Bottom
Galapagos rock formation Darwin's Arch has collapsed
‘Tree Farts’ Increase Carbon Emissions in Ghost Forests

The Flannelcasters talk about chert - it’s uses, how it’s made, and where it forms. Also, they talk about why diatoms are so important to life on Earth.