PlanetGeo: The Geology Podcast

The Moon-Forming Impact - Q&A with Dr. Rachel Phillips aka GeoGirl

In this episode, we're back with the fabulous Dr. Rachel Phillips, also known as Geo Girl on YouTube, diving into part two of our intriguing Q&A session. This time, we cover listener questions about early Earth geology, the moon-forming impact, geochemistry, and much more. Spoiler alert: we journey into the cosmic and tectonic weeds, so grab your scientific hats as we ponder if the moon-forming whammy kickstarted plate tectonics and its broader implications on our planet! The center of our discussion revolves around a burning question: Did the moon-forming impact trigger plate tectonics? From vigorous debates on early Earth’s behavior to the staggering differences between Earth and its 'toxic twin' Venus, we leave no stone unturned—or unmelted. Dr. Phillips and Jesse examine the evidence, debunk some age-old myths (bye-bye, late heavy bombardment), and think about how a cataclysmic impact billions of years ago might have reset our planetary clock. Oh, and don't get us started on whether Earth or moon rocks are older—trust us, it's complicated. As we approach the end of our cosmic conversation, we speculate about how such colossal impacts might have played a role in developing early life on Earth. Did these monumental collisions cook up the perfect conditions for life's early proliferation, or did they serve as the ultimate reset button? Join us on this epic journey through time, magma oceans, and cratered landscapes. And hey, if you have more burning questions or just want to say hello, hit us up on all the social medias at Planet Geo Cast or visit our website planetgeocast.com. Cheers to more geological deep dives in the future! Download the CampGeo app now at this link [https://campcourses.app.link/planetgeo]. 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 [https://www.instagram.com/planetgeocast/] Twitter: @planetgeocast [https://twitter.com/planetgeocast] Facebook: @planetgeocast [https://www.facebook.com/planetgeocast/] Support us: https://planetgeocast.com/support-us [https://planetgeocast.com/support-us] Email: planetgeocast@gmail.com Website: https://planetgeocast.com/ [https://planetgeocast.com/]

Whence Plate Tectonics? Q&A with Dr. Rachel Phillips aka GeoGirl

Jesse joins forces with Dr. Rachel Phillips, AKA Geo Girl, to tackle viewer questions about Earth's oldest rocks. We cover a wide range of topics, from how Earth's age is calculated using meteorites to the intriguing details of zircon dating. We also discuss the beginnings of plate tectonics, early continents, and the much-debated timeline of Earth's geological history. This in-depth discussion is packed with scientific insights, humorous quips, and plenty of geologic puns to keep you entertained. Don't forget to check out our Camp Geo mobile app for a deep dive into Earth's ancient rocks! Download the CampGeo app now at this link [https://campcourses.app.link/planetgeo]. 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 [https://www.instagram.com/planetgeocast/] Twitter: @planetgeocast [https://twitter.com/planetgeocast] Facebook: @planetgeocast [https://www.facebook.com/planetgeocast/] Support us: https://planetgeocast.com/support-us [https://planetgeocast.com/support-us] Email: planetgeocast@gmail.com Website: https://planetgeocast.com/ [https://planetgeocast.com/]

Rocks and Rules, Putting Things in Order (Re-Release #1)

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! Download the CampGeo app now at this link [https://campcourses.app.link/planetgeo]. 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 [https://www.instagram.com/planetgeocast/] Twitter: @planetgeocast [https://twitter.com/planetgeocast] Facebook: @planetgeocast [https://www.facebook.com/planetgeocast/] Support us: https://planetgeocast.com/support-us [https://planetgeocast.com/support-us] Email: planetgeocast@gmail.com Website: https://planetgeocast.com/ [https://planetgeocast.com/]

The Length of Day 2.5 Billion Years Ago - BIFs, Milankovitch, and Geochron with Dr. Josh Davies

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 [https://campcourses.app.link/planetgeo]. 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 [https://www.instagram.com/planetgeocast/] Twitter: @planetgeocast [https://twitter.com/planetgeocast] Facebook: @planetgeocast [https://www.facebook.com/planetgeocast/] Support us: https://planetgeocast.com/support-us [https://planetgeocast.com/support-us] Email: planetgeocast@gmail.com Website: https://planetgeocast.com/ [https://planetgeocast.com/]

What is a Continent? Part 1 - The Composition

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 [https://campcourses.app.link/planetgeo]. 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 [https://www.instagram.com/planetgeocast/] Twitter: @planetgeocast [https://twitter.com/planetgeocast] Facebook: @planetgeocast [https://www.facebook.com/planetgeocast/] Support us: https://planetgeocast.com/support-us [https://planetgeocast.com/support-us] Email: planetgeocast@gmail.com Website: https://planetgeocast.com/ [https://planetgeocast.com/]