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Don't Panic Geocast

John Leeman and Shannon Dulin

John Leeman and Shannon Dulin discuss geoscience and technology weekly for your enjoyment! Features include guests, fun paper Friday selections, product reviews, and banter about recent developments. Shannon is a field geologist who tolerates technology and John is a self-proclaimed nerd that tolerates geologists.

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21 episodes
Avg 53 min
English

Episodes 21

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October 2 · 53 min
Episode 435 - “FIRE THE LASERS!”
From lasers on Mars to discover potential past life to grinding up geezers, this episode is a wild trip through this weeks geology news dosed with ample amounts of banter and a flying phone.
September 19 · 56 min
Episode 434 - "darkness sometimes brings profundity"
How do you know if your cool new result is real or just some artifact? Is it data or noise, and are those not always so dissimilar? This week we tackle that along with how good your BS detector is.
September 11 · 48 min
Episode 433 - "2 totally useless degrees "
Wildfires can change the landscape and have geologic implications. Also, what makes your sneakers squeak, and what does that have to do with earthquakes?
August 28 · 1 hr 9 min
Episode 432 - "Like walking around inside someone's mouth"
This week we recap the GEARS 2026 workshop, our return from summer break, how hot it has been, and chat about floods of the 1300's in Europe.
June 26 · 32 min
Episode 431 - Philippines Earthquake
There was a very large earthquake in the Philippines - John and Shannon break down what you need to know. We also explore the question - what's the deal with birds?
June 5 · 1 hr 2 min
Episode 430 - "I am being ambushed"
This week John and Shannon discuss the book "Slow Productivity", our other summer reading lists, and if swearing makes your exercise sessions better.
May 29 · 48 min
Episode 429 - "Summer Shorts" GPR
This week we talk about GPR or ground penetrating radar as Shannon considers buying one and asks what to look for.
May 15 · 56 min
428: Episode 428 - "Pedagogical Gold"
This week we talk about how you should approach an outcrop in the field for the first time. What do you look for? What kind of notes do you take?
March 28 · 58 min
Episode 427 - "Feeding Tubes Yo!"
This week we help a listener identify their bizarre fossil - and it's a trace fossil! Learn all about it and find out if you'd remember more if we were funnier!
March 13 · 42 min
Episode 426 - "Hard K Sound is Hilarious"
This week, we continue to talk about temperature with a discussion of temperature scales, where they came from, and why there are so many!
February 6 · 58 min
Episode 425 - "How jiggly are your bits?"
What is temperature? Why do we care? Where did all of these temperature scales come from? This week, we find out!
January 30 · 46 min
Episode 424 - "Aunt Betty" Liquefaction
This week it's all about liquefaction as we explore why some caskets are above ground and how some cars get half way buried.
January 10 · 1 hr 1 min
Episode 423 - "The rumors of our death"
We are back after a very challenging 2025 but don't panic - there is a plan!
Nov 7, 2025 · 46 min
Episode 422 - "Melissa"
We're still here - it has just been a very difficult time, but this week we're talking about Hurricane Melissa and Halloween Candy!
Sep 19, 2025 · 1 hr 6 min
Episode 421 - "Come work for you"
This week, we chat about our GEARS workshop that recently wrapped up, how it has evolved, and how it went!
Sep 6, 2025 · 46 min
Episode 420 - "Tourist Destination" Kamchatka Earthquake
This week we are back and discussing the recent large earthquake in Russia!
Aug 8, 2025 · 48 min
Episode 419 - "Diamonds Everywhere" A States
Pack your bags — we’re hitting the geologic road! In this episode of Don't Panic Geocast, John and Shannon kick off a new series exploring the best geo-themed road trip stops in every U.S. state, starting with Alabama, Alaska, and Arkansas. From crystal hunting to tectonic tales, it’s a mix of places we’ve explored and destinations still on our bucket list. Whether you're planning a trip or just dreaming of one, this is the geo-travel inspo you didn’t know you needed.
Aug 1, 2025 · 50 min
Episode 418 - "I like the crystal habit"
In this episode of Don't Panic Geocast, John and Shannon dive into their favorite minerals, sharing what makes these crystalline companions so captivating. From shimmering hematite to vividly colored tourmaline, they explore mineral properties, formation quirks, and the stories behind their top picks. Whether you're a rockhound or just curious, this episode is sure to spark your inner mineral nerd.
Jul 11, 2025 · 1 hr 4 min
Episode 417 - "Who are you?"
We're back from summer break - Shannon taught field camp, John travelled for work and got hailed on, and more!
May 16, 2025 · 54 min
Episode 416 - "Life is a Physics Exam"
This week we talk about how we power our instruments in the field and all of the weird and wonderful ways they fail. Including getting turned into charcoal by lightning!

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