Petrification

Petrification

Today, we are talking about the process of making petrified wood. Basically, wood has to be quickly buried in a wet setting where the water is also saturated in certain minerals - usually silica. Also, there must be little oxygen present or oxidation reactions have to occur to use up all of the available oxygen. This prevents the wood from getting eaten by decomposers. We will also get into the geologic settings where this is likely to occur. Finally, we talk a little...

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Jaksot(291)

The Rock 50 Light-Years Away

The Rock 50 Light-Years Away

What if you could tell whether a rock exists on a planet 50 light-years away — without ever leaving Earth? This week Chris and Jesse welcome back friend-of-the-show Dr. Jackie Faherty (American Museum...

16 Heinä 56min

The Room Problem (and how Geochronology solves it)

The Room Problem (and how Geochronology solves it)

Granite is everywhere — it makes up much of the continental crust beneath our feet; yet, for over a century geologists were stuck on a deceptively simple question: where does all that magma find room?...

2 Heinä 54min

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Rocks for the Future - with MIT Prof. Oli Jagoutz

What does cracking open green-shiny rocks in a German preschool have to do with feeding eight billion people without oil and gas? In this episode, we sit down with Prof. Oli Jagoutz, professor at MIT ...

11 Kesä 44min

The Fundamentals of Geology (Exam)

The Fundamentals of Geology (Exam)

This week we take on the FG test — the Fundamentals of Geology exam — the very first step on the road to becoming a professionally licensed geologist. Jesse just sat the exam this past fall (yes, a ge...

28 Touko 41min

Granite Wars: The Debates That Built a Science

Granite Wars: The Debates That Built a Science

In this episode, we sit down with Dr. Mike Ackerson (Smithsonian) for the kick-off of a deep-dive series on granites and granitoids. This one goes into the weeds: the 250-year history of how arguing a...

21 Touko 59min

The Geologist's License: How the FG and PG Exams Get Built — with Keith Rapp

The Geologist's License: How the FG and PG Exams Get Built — with Keith Rapp

In this episode, we sat down with Keith Rapp, senior hydrogeologist, longtime volunteer with ASBOG (the Association of State Boards of Geology), and immediate past president of the organization. We du...

30 Huhti 1h 3min

What Makes Supervolcanoes? With Professor Shan de Silva and Dr. Rachel Phillips

What Makes Supervolcanoes? With Professor Shan de Silva and Dr. Rachel Phillips

What distinguishes supervolcanoes from regular or non-super volcanoes? How many supervolcanoes are on Earth today? What are the precursors to supervolcano eruptions? In today's deep dive, Dr. Rachel P...

16 Huhti 50min

Eating Rocks For Breakfast

Eating Rocks For Breakfast

Download the CampGeo app now at this link. 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 geolog...

2 Huhti 36min

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