PlanetGeo: The Geology Podcast

PlanetGeo: The Geology Podcast

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!

Episodes

July 3, 2025 49 mins

Join us as we dig deep into the world of cobalt! This episode covers everything from the explosive growth in cobalt demand to the intriguing geology behind this critical element. We traverse through magmatic, sedimentary, and laterite cobalt deposits, touching on the societal and environmental issues tied to cobalt mining. Fun and intriguing, this episode is sure to rock your world with cobalt facts unseen! Don't miss the deep...

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Join us as we delve into a thought-provoking discussion on whether geologists truly think differently. From contemplating the scale of tectonic plates to grappling with deep time and dealing with complex, data-rich scenarios, this episode digs deep into the elements that shape a geologist's unique perspective. Featuring intriguing anecdotes, our class exercises, and even a claim about biologists that's bound to cause some...

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Join us in this explosive episode as we dive deep into the hot topics of Long Valley Caldera with knowledgeable volcanologist Dr. Andy Calvert! Get ready for a magmaficent discussion on one of the most studied volcanic regions in the world. From discovering the volcanic history and understanding the geothermal wonders, to deciphering the processes of second boiling and fractional crystallization, this episode is sure to rock your w...

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Discover the uplift-ing story of Long Valley Caldera! 🌋 In this riveting episode, we dig deep into tremors and uplift, unraveling the saga of resurgence domes and the seismic swarms shaking up the geoscience world. From the fascinating formation and swelling of the dome to the debate between magma intrusion and second boiling, we explore the cutting-edge techniques volcanologists use to get to the core of volcanic activity. Whethe...

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Join us as we dig deep into the steaming secrets of Long Valley Caldera's hydrothermal activities! We discuss the unique geological features that make Long Valley Caldera a hotbed of hydrothermal phenomena, from hot springs and fumaroles to the mysterious lack of geysers. Learn about the dynamic interplay of magma, groundwater, and the geothermal power lurking beneath the surface. Plus, we tackle some explosive hydrothermal er...

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Join us as we dig into the hot (and viscous!) topic of the Long Valley Caldera's explosive history. 🪨 From the dramatic six-day eruption that shaped this geological wonder to the intricate details of the Bishop Tuff, you'll get a front-row seat to the science behind these monumental volcanic events. Discover how a simple basalt intrusion led to a massive caldera-forming eruption and why the Bishop Tuff is considered the ...

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Join us as we embark on a volcanic journey delving deep into the fiery mechanics of the Long Valley Caldera. In this episode, we dissect the intricate process of mantle-derived basalt and its trans-crustal journey leading to magmatic differentiation and colossal eruptions. We explore the evolution of magma, touching on essential principles like partial melting, crystal assimilation, and fractional crystallization. Don’t miss out on...

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Join us as we hack our way through the geological 'weeds' of the Long Valley Caldera! In today's episode, we simplify complex tectonic interactions, explaining how a perfect storm of tectonics led to one of Earth's largest volcanic eruptions. Whether you're a geology novice or a seasoned expert, you'll discover the role of trans-tension, decompression melting, and the intricate dance of fault lines in ...

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In this introductory episode, we plunge into the depths of the Long Valley Caldera's explosive history! 🌋 Join us as we unravel the volcanic secrets behind one of the biggest eruptions of the last 2 million years. From the initial mantle melting to the mind-blowing eruption 767,000 years ago, discover how this geological marvel evolved. Dive into the intricate interplay of tectonic forces, mantle upwellings, and crustal melti...

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In this episode of Planet Geo, we speak with Lindsey Schultz, the CEO of MRC Recruiting, a leading recruitment agency in the mining sector. The discussion explores the evolving landscape of geoscience and mining careers, emphasizing the significant demand for geologists and the factors impacting employability. Lindsey shares personal anecdotes and professional insights on networking, the importance of continuous education, effectiv...

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In this rock-solid episode, we dive into Part 3 of their exciting geology series! 🪨 We discuss why it's a golden age to be a geologist, focusing on how the answers to many of today's challenges are literally set in stone. From contact metamorphism to the fascinating world of serpentinites, we explore how these natural processes are crucial in addressing climate change and charting a path towards the future. We even touch...

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Join us for an exciting episode as we dive deep into the world beneath our feet with Dr. Katie Smye, a renowned research associate professor at the University of Texas at Austin. In this interview, Dr. Smye takes us on a full journey through the intricacies of fracking, induced seismicity, and the oil industry. Learn how modern drilling technologies have revolutionized energy production and the challenges associated with wastewater...

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In this episode of Planet Geo, Jesse and Chris delve into why now is an exhilarating time to be a geologist. They explore the importance of understanding what's beneath our feet—literally—and its implications for everything from finding deeper, smaller, and more costly geothermal energy sources to creating metamorphic reactions. There's emphasis on how the next big boom in geoscience will be driven by the world's cha...

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April 3, 2025 46 mins

Join us as we dive deep into the world of Petoskey Stones, Michigan’s state fossil! 🌊 In this episode, Chris and Dr. Jesse explore the beautiful, fossilized coral known as Petoskey Stones. Discover how these unique stones, beloved by collectors, tell a story of ancient tropical seas and glacial movements. Learn about their formation, significance, and where to find these geological gems. This episode is perfect for rock hounds, fo...

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It's a good time to Buy Geoscience! 

Join Chris and Jesse as they kick off an exciting series on why it's a great time to be a geoscientist! They dive into enrollment trends, industry demands, and the bright future ahead for those passionate about rocks and the Earth. The discussion covers the evolving perception of geosciences, the decline in geoscience programs, and how upcoming events will create a surge in demand for s...

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Join us as we tackle the rocky topic of field geology's relevance in today's world, sparked by a listener question from Taylor. We delve deep into whether mapping rocks and fieldwork are becoming outdated or if they still hold significant value. Chris and Jesse share personal anecdotes, debate the evolving landscape of geoscience education, and highlight the importance of diverse skill sets in the field. Get ready for a j...

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March 13, 2025 44 mins

In this exciting episode of Planet Geo, Chris and Jesse dive deep into the fascinating world of pudding stones! From the picturesque Hertfordshire pudding stones in England to the Roxbury conglomerate in Massachusetts, and finally the scientifically wondrous Lorraine Quartzite pudding stone abundant in Michigan. They discuss the unique geological stories each of these beautiful rocks tells and explore their origins, formations, and...

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In this episode of Planet Geo, hosts Jesse and Chris have an in-depth conversation with Dr. Lee Kump, Dean of the College of Earth and Mineral Sciences at Penn State. In a chat that's more exciting than discovering a trilobite fossil, they explore Lee's profound career journey, paper citations thick enough to bury any rock hound, and his transition from groundbreaking geoscience research to becoming an influential adminis...

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February 27, 2025 29 mins

In this episode, Chris and Jesse delve into the various 'ologies' within geology, sparked by a listener question regarding the differences between geology and geography. The discussion explores the evolution and rebranding of geology departments, their experiences with different specializations, and the significance of courses like mineralogy and petrology. They share insights into their favorite fields and ones they have...

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February 20, 2025 68 mins

Get ready to dig deep into the geological weeds with Dr. Jesse Reimink and Chris Bolhuis as they tackle the rock-solid debate about Earth's oldest rocks! Is the Ujaraaluk unit in Northern Quebec truly 4.25 billion years old? Or is it just a rocky mix-up? We meticulously break down isotope geochemistry, hydrothermal beauties, and field observations. Discover how extinct isotope systems shed light on our planet's fiendishly...

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