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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How Do Rocks Really Crystallize?

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!

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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! 
Download now at this link

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The Longest Cave System in the World

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! 
Download now at this link

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Email: planetgeocast@gmail.com
Website: https://planetgeocast.com/

The Uniqueness of Iceland

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! 
Download now at this link

Like, Subscribe, and leave us a Rating!

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Instagram: @planetgeocast
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Support us: https://planetgeocast.com/support-us
Email: planetgeocast@gmail.com
Website: https://planetgeocast.com/

Tough Soil - The Geology of Hardpan

Some Rocks You SHOULD Know - Metamorphism and Plate Tectonics

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! 
Download now at this link

Like, Subscribe, and leave us a Rating!

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Instagram: @planetgeocast
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Support us: https://planetgeocast.com/support-us
Email: planetgeocast@gmail.com
Website: https://planetgeocast.com/

How Do Rocks Really Crystallize?

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