Episodios

  • Rocks and Rules, Putting Things in Order (Re-Release #1)
    Nov 20 2025

    In this episode of Planet Geo, we share some exciting updates as Chris steps back a bit. Don’t worry; Chris will still join us regularly, but you'll also be hearing more often from fantastic guests like Dr. Rachel Phillips, Dr. Mike Ackerson, and Dr. Josh Davies. We’re diving deep into the geoscience topics we all love and bringing you insightful interviews with geoscience leaders. We’re also eager to hear your feedback, so please reach out on our social media or website with your thoughts on the show's future direction.


    Before we usher in the new year, we're revisiting some classic episodes, including “Rocks and Rules: Putting Things into Order,” where we lay out the foundational principles of geology. From superposition to cross-cutting relations and inclusions, we tackle the basic yet essential concepts that make geology so fascinating. Imagine sorting a giant puzzle—except it's with rocks! Whether you're in the field, driving past road cuts, or just curious about those layered rocks on your hike, these principles bring a newfound appreciation for the Earth’s history. We also highlight the invaluable role of index fossils in correlating rock sequences across vast distances, even globally. So, if you're a puzzle enthusiast or a geology newbie looking to deepen your understanding, this episode is for you. Join us as we simplify these scientific principles and show you how they fit into the grand story of our planet's past. And don’t forget—your input is vital as we look to make Planet Geo awesome not just for today, but for years to come!

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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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    35 m
  • The Length of Day 2.5 Billion Years Ago - BIFs, Milankovitch, and Geochron with Dr. Josh Davies
    Nov 13 2025

    Join us as we dive into an awe-inspiring chat with Dr. Josh Davies – an expert in high-precision geochronology! Josh and Jesse go way back to their University of Alberta days, and in this episode, they unravel a groundbreaking project involving banded iron formations. Together, they explore how these ancient rocks bring to light the Earth's history, dating back 2.5 billion years. Discover how the research reveals the Moon-Earth distance and the length of days billions of years ago. Plus, stick around to hear their field stories and the future of geochronology!

    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!

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    1 h y 25 m
  • What is a Continent? Part 1 - The Composition
    Nov 6 2025

    In this episode, we dive deep into the composition and formation of the continental crust! We explore the tough questions about what makes up our continents, debunking some rudimentary class teachings and revealing the misunderstandings in our current knowledge! But don't worry—it’s not all sedimentary! We also ponder the role of basalt and Granite, the conundrum of exhumed terrain, and even how we get our data from the deepest boreholes. Plus, they touch on the notion that water might just be the secret ingredient to building continents! Ready to rock? Let’s dig in!

    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!

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    38 m
  • Stories in Stone - with David Williams
    Oct 30 2025

    Ready to rock your buildings with some fascinating geology tales? Join us as we chat with the amazing David B. Williams, author of 'Stories in Stone.' David shares his insights on the hidden geological marvels in urban landscapes and the history behind some iconic building stones. From Seattle's local quarries to Chicago's memorable marbles, this episode is a treasure trove of stone-cold facts! Dive in for a journey that melds earth science and architectural history in the most intriguing way. Also, stick around to hear about David's adventures as a park ranger and how that led him to become a geology writer and guide. Don't take this episode for granite!

    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!

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    58 m
  • From Rifts To Rifles - The Regional Geology of the Battle of the Gettysburg
    Oct 23 2025

    Join us in this action-packed final episode of our Gettysburg series as we uncover the rock-solid weathering patterns that shaped one of the most famous battles in history! Standing on the historic battleground, you'll see how two supercontinent formation and breakup events have influenced the topography and geology of Gettysburg. Discover the impact of weathering and time on the eastern U.S landscape, and how these factors played a crucial role in the outcome of the Battle of Gettysburg. From the rugged Blue Ridge Mountains to the fertile soils of the Great Valley, we dive deep into the geological features that made Gettysburg a strategic focal point. Packed with geological insights and battlefield stories, this episode captures it all—rock formations, troop movements, and even a bit of friendly banter! So grab your rock hammer and join us as we dig into the legacy of Gettysburg. Geology wins again!

    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!

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    39 m
  • Flash Floods
    Oct 16 2025

    Join us for a deep dive into the world of flash floods in this exciting episode! Navigate the rapid waters of this intense topic with Chris and Jesse, as we unravel the captivating geoscience behind these dramatic events. From the devastating impacts of flash floods to the intricate balance of soil, vegetation, and slope, we leave no stone unturned. Discover how human activities and climate change are setting the stage for more frequent flash floods and learn the innovative engineering solutions designed to mitigate their effects. Buckle up and get ready to enhance your infiltration knowledge—because this is one flood of information you won't want to miss!

    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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    49 m
  • Calderas and Confederates - The Geology of South Mountain and the Gettysburg Campaign
    Oct 9 2025

    In this action-packed episode of our Gettysburg Geology series, we dig deep into the dynamic geological history of South Mountain. Discover how this towering terrain played a pivotal role in the Battle of Gettysburg, from offering a sneaky passage for the Confederates to serving as a dramatic retreat route. We explore the fascinating world of faults, folds, and the incredible rocks that shape this region. From ancient basalt and rhyolite to the rugged sandstones that make up many of the highest peaks, you'll be on the edge of your seat as we unearth the layers of history and geology intertwined in this stunning landscape.

    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!

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    34 m
  • Eruptions and Extinctions - The Geology of the Gettysburg Sill
    Oct 2 2025

    In this episode of our visual podcast series, journey back to the battlefields of Gettysburg to unearth the geological forces that played a pivotal role in history. Dive deep with Herr Professor Dr. Reimink and Chris Bolhuis as they explore the York Haven Sill and Rossville Dykes, parts of the massive Central Atlantic Magmatic Province (CAMP). Discover how these ancient volcanic events potentially triggered the end-Triassic mass extinction. Packed with juicy geochronology details, this episode mixes wit, history, and science—one sedimentary layer at a time. Tune in to see how geology not only provides the high ground but also might have set the stage for a global biological turnover. Remember, in the battle of fossils and igneous intrusions, geology always wins!

    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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    39 m