Get ready to dig deep into geology with the one and only Dr. Philip Prince! Join su as we rock out with discussions on the game-changing one-meter resolution lidar, geomorphology, landslides, and the captivating landscapes of the Appalachians. Learn about Philip's aha moments in geology, his journey from a trout fishing enthusiast to a top-notch geomorphologist, and the incredible insights revealed by lidar technology. Plus, discover some fascinating lesser-known geological mysteries - all served with a side of geology puns. Tune in and let's get ready to explore the Earth's secrets, one layer at a time!

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On the app you can get tons of free content, exclusive images, and access to our Geology of National Parks series.
You can also learn the basics of geology at the college level in our FREE CampGeo content series - get learning now!

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In this exciting episode of our series on Gettysburg's geology, we dive deep into the Gettysburg Basin to uncover how the rocks beneath the famous battlefield shaped the events of history. From the famous McPherson's Ridge to the subtle hills that played crucial roles, discover how changes in rock types have left their mark. Join us as we zoom in on sedimentary rocks, explore the reddish Gettysburg Formation, the Heidelsburg member, and reveal some truly fossil-iferous finds. Rock on with us as we take a look at how geology played its part in one of the most famous battles in American history!

Download the CampGeo app now at this link.

On the app you can get tons of free content, exclusive images, and access to our Geology of National Parks series.
You can also learn the basics of geology at the college level in our FREE CampGeo content series - get learning now!

Like, Subscribe, and leave us a Rating!

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Instagram: @planetgeocast
Twitter: @planetgeocast
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Support us: https://planetgeocast.com/support-us
Email: planetgeocast@gmail.com
Website: https://planetgeocast.com/

In this episode, we dive back into the bedrock of America to reveal which state holds the crown for the oldest rocks in the U.S.! Join us as we unravel the mysteries of ancient metamorphic formations. From the Morton Gneisses in Minnesota, to the Wyoming craton out West, and ending in Upper Michigan, you'll find out what the oldest rocks are, and how we know! Hit that subscribe button, because this episode rocks!

The paper that served as the basis for this episode is Frost, C.D., Mueller, P.A., Bickford, M.E., and Stern, R.J., 2025, USA’s oldest rock? A simple question with a complex answer: GSA Today, v. 35, p. 4–10,
https://doi.org/10.1130/GSATG613A.1.

00:00 Introduction and Episode Overview

00:50 Setting the Stage: America's Oldest Rocks

02:28 Understanding Metamorphic Rocks

05:18 The Importance of Rock Ages

09:55 Zircon and Uranium-Lead Dating

14:16 Metamorphism and Zircon Growth

22:05 Metamorphic and Igneous Rock Processes

23:32 Understanding Zircon Inheritance

24:32 Determining Rock Ages

27:21 Challenges in Identifying Rock Types

31:44 Oldest Rocks in the United States

36:52 Technological Advancements in Geochronology

42:51 Conclusion and Further Research

Download the CampGeo app now at this link.

On the app you can get tons of free content, exclusive images, and access to our Geology of National Parks series.
You can also learn the basics of geology at the college level in our FREE CampGeo content series - get learning now!

Like, Subscribe, and leave us a Rating!

——————————————————
Instagram: @planetgeocast
Twitter: @planetgeocast
Facebook: @planetgeocast
Support us: https://planetgeocast.com/support-us
Email: planetgeocast@gmail.com
Website: https://planetgeocast.com/