PlanetGeo: The Geology Podcast

Latest Episodes:

The Geology of Eskers Aug 29, 2024

Show notes

In this episode of PlanetGeo, we delve into the fascinating world of eskers, exploring their formation, significance, and economic importance. We explain how eskers, sinuous ridges formed by pressurized meltwater channels at the base of glaciers, provide crucial geological insights and serve as valuable tools in mineral exploration, such as in diamond mining. We share personal anecdotes and compelling visuals to illustrate how these unique glacial features reveal past glacial activity and help in tracing mineral deposits. Additionally, we emphasize the broader relevance of geology, highlighting the educational and practical applications of understanding geological processes.

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Field Observations - a How-To Aug 22, 2024

Show notes

Dr. Jesse Reimink and Chris Bolhuis share their firsthand experiences and insights from recent fieldwork. The episode delves into their fascinating observations and discussions about various geological features, including lava inflation structures, such as tumuli and inflation pits, the stunning landscapes shaped by fjords in Iceland, and the deposits of eskers in the Northwest Territories. They highlight the importance of careful, methodical analysis in geology and discuss how to draw conclusions in the field accurately. Additionally, they emphasize the complexities and challenges of fieldwork, as well as the beauty and excitement of discovering geological phenomena in remote locations. The episode concludes with practical tips for supporting their work and engaging with further educational resources through their Camp Geo app.

Columnar Jointing - Icelandic Version Aug 15, 2024

Show notes

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 and modern understanding of the physics behind columnar jointing. Listeners are encouraged to support the podcast via the Camp Geo app and send in any questions they may have about the topic.

The Big Fill Slide - And Landslides Generally Aug 01, 2024

Show notes

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 explore the ongoing geological activity that makes this area particularly prone to such events. This episode is both timely and informative, shedding light on the delicate balance between human infrastructure and natural forces.

Kickstarting Continents - The Acasta Gneiss Complex Part II Jul 25, 2024

Show notes

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 fieldwork, and the ongoing debates about their exact ages. They also discuss the logistical difficulties of accessing the Acasta Gneiss and the commercialization of samples.
Access this episode with images, and more, in the CampGeo app - download now at the link below!

Cave Decorations - Mammoth Size Jul 18, 2024

Show notes

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-depth discussion is sure to satisfy your curiosity.
Don't forget to check out the additional images and resources available on the Camp Geo app for a more visual experience.

Home Away From Home - The Grand Tetons Jul 04, 2024

Show notes

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 Geology of the Grand Tetons on the CampGeo app now - link below!

Discovering Earth's Oldest Rocks Jun 27, 2024

Show notes

Making a Mammoth Cave Jun 20, 2024

Show notes

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.