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PODCAST

PlanetGeo: The Geology Podcast

Chris and Jesse

A Geology and Earth Science Podcast. Join Chris, an award-winning geology teacher, and Jesse, a geoscience professor, in discussing the amazing features of our planet and their impact on your everyday life. No prior knowledge required. New episodes coming at you every week. Listen, subscribe, share with someone you know!

science earth sciences

All Episodes

39:38

Columnar Jointing - Icelandic Version

PlanetGeo: The Geology Podcast ·

2024/08/15

Dr. Jesse Reimink and Chris Bolhuis delve into the fascinating geological phenomenon of columnar jointing, sharing insights from Chris's recent trip to Iceland. They discuss the formation, size variations, and unique patterns of these striking hexagonal columns found in basaltic lava flows, addressing questions such as why they form, why some flows exhibit them while others don't, and the conditions that lead to different column orientations. The conversation also covers historical theories a...

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33:31

The Unknown Early Earth - Jack Hills Zircons Part II

PlanetGeo: The Geology Podcast ·

2024/08/08

In this episode, Chris Bolhuis and Dr. Jesse Reimink delve into the intricacies of the Jack Hills zircons from Western Australia, discussing their formation, significance, and the ongoing scientific debates surrounding them. They explore topics like plate tectonics, the age of zircons, and the methodologies used to study these ancient grains, and connect the importance of this research to broader planetary science and philosophical implications.Learn more, and see all the images with exclusiv...

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42:15

The Big Fill Slide - And Landslides Generally

PlanetGeo: The Geology Podcast ·

2024/08/01

In this episode of Planet Geo, Dr. Jesse Reimink and Chris Bolhuis delve into the fascinating and sometimes perilous world of landslides, focusing on a recent landslide known as the Big Fill landslide that occurred in the Teton Pass. They discuss the various triggers and mechanisms behind landslides, including the impact of water, earthquakes, and human activities. The hosts also highlight key historical landslides in the Teton region, such as the Gros Ventre and the Quake Lake slides, and ex...

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31:42

Kickstarting Continents - The Acasta Gneiss Complex...

PlanetGeo: The Geology Podcast ·

2024/07/25

In this podcast episode, Dr. Jesse Reimink and Chris Bolhuis delve into part two of their discussion on Earth's oldest rocks, specifically the Acasta Gneiss. They explore the origin, complex history, and significance of these ancient rocks, including insights from Dr. Reimink's PhD research which suggests an Icelandic rather than subduction zone setting for their formation. The conversation covers the challenges of studying such remote and deformed rocks, the iterative process of geological f...

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30:34

Cave Decorations - Mammoth Size

PlanetGeo: The Geology Podcast ·

2024/07/18

Dive into the fascinating world of Mammoth Cave with Dr. Jesse Reimink and Chris Bolhuis in this episode of Planet Geo. From understanding the types of passageways formed by ancient underground rivers to exploring the intricate and beautiful cave decorations like stalactites, stalagmites, and flowstone, this episode provides a comprehensive and engaging look at one of the natural wonders of the world. Whether you’re preparing for a visit or just curious about subterranean geology, this in-dep...

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32:30

Earth's Oldest Fragments - Jack Hills Zircons Part I

PlanetGeo: The Geology Podcast ·

2024/07/11

In this episode, Chris Bolhuis and Dr. Jesse Reimink dive into the complexities of Zircon grains from the Jack Hills conglomerate in Western Australia—some of the Earth's oldest fragments. They discuss the environmental conditions necessary for their formation and survival, the role of magma differentiation in creating intermediate to felsic rocks, and the geochemical analysis using oxygen and hafnium isotopes which indicate the presence of water on Earth's surface over 4 billion years ago. T...

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33:37

Home Away From Home - The Grand Tetons

PlanetGeo: The Geology Podcast ·

2024/07/04

In this episode of Planet Geo, Chris Bolhuis and Dr. Jesse Reimink dive deep into the geology of the Grand Teton National Park. They cover the park's ancient rock formations, from the Archean gneiss to the granites formed around 2.5 billion years ago. The discussion also explores significant geological events like the Severe and Laramide orogenies, the impact of the Yellowstone Hotspot Track, and the glacial activity that sculpted the dramatic landscapes of the Tetons. Get access to The ...

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46:10

Discovering Earth's Oldest Rocks

PlanetGeo: The Geology Podcast ·

2024/06/27

We now have a live Mobile App for iOS and Android. There you can learn all the basics of geoscience with our CampGeo content, purchase a visual audiobook on the Geology of Yellowstone National Park, and listen to past PlanetGeo episodes! Download now at this linkLike, Subscribe, and leave us a Rating!——————————————————Instagram: @planetgeocastTwitter: @planetgeocastFacebook: @planetgeocastSupport us: https://planetgeocast.com/support-usEmail: planetgeocast@gmail.comWebsite: https://planetgeoc...

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39:34

Making a Mammoth Cave

PlanetGeo: The Geology Podcast ·

2024/06/20

This episode is Part 2 of our Mammoth Cave series - where we discuss the geological setup that enabled creation of the longest cave system in the world. The geology of the region, including the Green River, set the stage for the formation of Mammoth Cave, the largest cave system that has been mapped. Stay tuned for our third installment on Mammoth Cave, where we discuss the cave 'decorations' or mineral formations. We now have a live Mobile App for iOS and Android. There you ca...

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38:02

The Geology of Clay

PlanetGeo: The Geology Podcast ·

2024/06/13

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37:05

The Longest Cave System in the World

PlanetGeo: The Geology Podcast ·

2024/06/06

This is the first episode in a series of 3 on the world's longest cave system - Mammoth Cave in Kentucky. In this episode, Chris and Jesse talk a little about Mammoth and some of its impressive statistics. The focus however, is more about the necessary ingredients for cave development in general. We talk about the 4 general ingredients: suitable rock type, a solvent, hydraulic gradient, and time. We also go into some detail on what each of these really mean. We h...

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31:45

The Uniqueness of Iceland

PlanetGeo: The Geology Podcast ·

2024/05/30

In this episode, Jesse and Chris talk about the geology of Iceland - although we keep it at a high level. We're going to come back to this - Iceland - later after Chris returns from his trip. Then, we'll get into some of detail that makes Iceland so unique. Here, we discuss how Iceland might be a prototype for the formation of continents and also talk a bit about the diversity of igneous rocks that make up the Island. The diversity of rocks speaks to the diversity of v...

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35:45

Tough Soil - The Geology of Hardpan

PlanetGeo: The Geology Podcast ·

2024/05/23

Hardpan! Where did this idea for an episode come from? Chris has been doing a ton of yard work lately and it’s not uncommon come across a layer when digging a hole that is next to impossible to penetrate. He has to bust out my pick axe to get through it. It's Called Hardpan.Really dense layer that often occurs below the topsoil. Problems:Roots can’t penetrate into the hardpan (Hayden Valley in YNP). Trees are easily blown over if they can even grow he...

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44:38

Some Rocks You SHOULD Know - Metamorphism and Plate...

PlanetGeo: The Geology Podcast ·

2024/05/16

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40:34

When Continents Became Stable

PlanetGeo: The Geology Podcast ·

2024/05/09

Today we really go into the weeds. Jesse and a colleague just published a paper in the journal Nature that proposes a new model for how continents became stable. Stable continents have all the granite at the surface, which contains all the heat producing elements like U and Th and K - elements that decay away. Today, we discuss that paper in detail, and along the way learn a bit about the early Earth, what we know and don't know! Here is a link to the paper, which is open access and can be do...

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37:22

Earth's Oldest Stuff

PlanetGeo: The Geology Podcast ·

2024/05/02

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43:15

Geo-Tripping - A How-To Guide

PlanetGeo: The Geology Podcast ·

2024/04/25

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64:31

The Rocks You Need to Know

PlanetGeo: The Geology Podcast ·

2024/04/18

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73:41

Cutting the Grand Canyon - Dr. John Douglass

PlanetGeo: The Geology Podcast ·

2024/04/11

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37:24

Uranium and the Start of the Earth? - How...

PlanetGeo: The Geology Podcast ·

2024/04/04

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287 results

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