Episoder

  • 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 hope you enjoy. In the next episode in this series, we'll talk about Mammoth specifics.

    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!
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  • 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 volcanic activity. We finish up the episode with a short discussion about what Chris is most looking forward to and how the planning is going. We hope you enjoy.

    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!
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  • Manglende episoder?

    Klik her for at forny feed.

  • 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 here.Water can’t penetrate so the soil layer above is easily saturated.Safe to say that farmers and gardeners generally don’t like it.Can even cause drainfield failure - creates an impervious layerThese are just a couple of problems - there are more.In this episode, Chris and Jesse do a deep dive into the geology of hardpan. We hope you enjoy.

    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!
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  • 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 downloaded by anyone without paying.

    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!
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  • Today, Chris and Jesse get into a discussion about Earth’s oldest material. Earth is 4.568 Billion years old. First of all, that’s amazing the geochronologists have refined this down to 3 decimal places. How do we know this? The oldest grains ever found are 4.38 billion years old. If that’s the case, then how do we know the Earth is significantly older than that? Join us as we answer that and many other important questions about Earth’s oldest stuff.

    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!
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  • In this episode, we tackle a listener question regarding planning a geology trip for students. Both Chris and Jesse have quite a bit of experience in planning and executing field excursions for students. We believe that seeing geology in the field is one of the most powerful learning opportunities for students of all levels. In our discussion, we talk about the difficulties in convincing the higher-ups that this is actually a good idea. We also get into some of the struggles in finding excellent teacher resources. In the end, we get a little philosophical on the importance of getting comfortable with not having all of the answers. We think that sometimes it's important for students to know that instructors don't know it all and together we can perhaps think about things different and come to new conclusions. We hope you enjoy.

    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!
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  • Join us as we have the honor of interviewing Dr. John Douglas. Jesse and Chris have been following his research on how the Grand Canyon was actually formed for some time. We have recently finished our audio-visual book on the Grand Canyon (Link above) and we have a chapter dedicated to the actual cutting of the Canyon. The answer to this question has been elusive, but there are a few leading theories. John has been leading the way on the Spillover Theory as a mechanism for carving the young Canyon. It's a great geologic discussion and we hope you enjoy.

    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!
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  • The idea for this episode came from the comment section of a social media post. It has it's roots in one of the biggest misconceptions in Geology and also Geochronology. The comment was about radio-carbon dating and how it's been "proven" to be unreliable. In this episode, Jesse and Chris have a discussion about the "toolbox" for geochronoligists and we also spend a lot of time talking about Uranium to Lead decay. We hope you enjoy.

    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!
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  • In charge of the Nations Rock Collection. That's a pretty sweet job description. Join us as we have the honor of interviewing Dr. Mike Ackerson. In this episode, we certainly get into some detail about igneous petrology. Mike and Jesse are good friends and have spent some time discussing things that introductory geology classes take for granted. For instance, there are some questions on the formation of granite. This might seem ridiculous because this topic is covered in any intro level geology class, but there are some problems.

    We also talk philosophically about geoscience education and scientific research. In all, this discussion spans too many areas to summarize here. We hope you enjoy!

    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!
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  • Today, Jesse and Chris discuss the geology of Nickel - The Devil’s Metal. Surprisingly, Earth’s core has a high percentage of Nickel - 10 to 20% of the core is nickel. We allow ourselves the luxury of getting into the details on nickel and why the core has so much. Of all the metals we’ve discussed on the podcast, the geology of nickel is the most complicated. In addition to discussing the geologic settings that form or concentrate nickel, we also spend some time discussing the history and uses. We hope you enjoy the discussion.

    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!
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  • Today, we have the another great interview - Dr. Anji Shah. She works for the USGS and has done a lot of work on heavy-mineral sands and critical elements. In this discussion, we talk about the paleo-environment that could concentrate critical minerals in heavy sands. Dr. Shah also tells us how "airborn geophysics" is important in looking for mineral deposits over huge areas that are often canopy covered. We hope you enjoy!

    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!
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  • In this episode, Jesse and Chris discuss the geology of asbestos. Really, we cover all things related - history, past uses (some of which are mind boggling), health issues, and of course the mineralogy. If you want the datail, this episode is for you. Jesse goes off the deep end a little as he nerds out on some geochemistry. We hope you enjoy.

    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!
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  • Dr. Adam Simon joins PlanetGeo to discuss many topics. One of the most interesting topics of discussion is the copper dilemma facing the world. If we want to transition to green energy like Electric Vehicles, we will face a shortage of copper. Dr. Simon describes Copper as the artery of a green transition. However, he's done the math and it doesn't add up. There isn't enough to make the transition. We hope you enjoy this extremely informative and entertaining interview.

    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!
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  • Today, Chris and Jesse once again revisit the topic of Bowen's Reaction Series. We've never approached the topic in such a before. The heart of our discussion centers around 1- What is Bowen's Reaction Series? and 2- How do we approach this highly idealized concept in an introductory class. How rocks really crystallize in a geologic setting is far more complex than Bowen's Reaction Series. This can lead to confusion when students progress in their geologic studies when they learn that Bowen's is the whole story (or even the correct story). We hope you enjoy this technical and philosophical discussion.

    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!
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  • Today is our latest episode in our series on climate. Jesse and Chris discuss the meaning of "Hard Water". Chris and Jesse both have hard water at our houses and we talk about how that happens. We wrap up this episode by talking about how the topic of hard water fits into our series and climate. We hope you enjoy!

    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!
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  • Join us as we interview Dr. Steph Mrozek. Steph is an economic geologist with interests in interests in skarn and porphyry deposits and geochemistry applied to mineral exploration. In our interview, the discussion turns to degrees in geoscience and educational pursuits. We’ve received a number of questions from listeners about what degree to pursue and how far to go. Steph offers unique perspectives on this topic that many of our listeners will find very useful.

    Then our discussion turns to a niche geologic topic - Skarns. Jesse and I learned a ton. We (Jesse and I) have some personal experience with Skarn deposits, but Steph is the expert in the room for sure.

    In the end, we have an in depth discussion about a career in exploration and mining geology. This episode has so much to offer. Listeners will learn about a topic that many aren’t familiar with and will also learn about the life and times of an exploration geologist. We know you will enjoy this episode.

    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!
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  • Join Chris and Jesse as we tackle questions about the Grand Canyon. A 4th grade class, Bronx Little School, reached out in a letter with a list of fantastic questions. We knew right away we wanted to make an episode about this. These questions, and our responses, provide a great introduction to the geology of The Grand Canyon. Below are the questions - asked and answered:
    1. How deep is the Grand Canyon?
    2- Why are the rocks orange, red, and black? How were the rocks made?
    3- Why is the Grand Canyon so steep?
    4- How old is each layer in the Grand Canyon?
    5- They didn't ask this question, but Jesse and I couldn't resist. So we posed the question: How did the Grand Canyon get cut? Maybe one of these awesome students will find the answer.

    We hope you all enjoy learning a little more about one of the Natural Wonders of the World. Cheers

    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 link

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