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The Geology of Iridium, The Meteorite Tracker
Manage episode 320029146 series 2784864
In this episode, Jesse and Chris follow up on the K-T Extinction episode from last week. Why is Iridium so important in this story? Our show notes summary is below.
Why is Iridium identified in these layers?
- Well, it’s higher in meteorites - but not really high.
- Why is it higher in meteorites though?
- It’s not actually high in meteorites, it’s low in the Earth’s crust! Very very very low.
- Yet, Earth is made of meteorites, so where did the Ir go?
- Most of it is in the core and we talk about why.
- Very rare on the surface of the Earth - only three metric tons mined and used yearly
- The most corrosion resistant substance known - even at high temperatures
- If it's so corrosion resistant, what is it used for?
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Instagram: @planetgeocast
Twitter: @planetgeocast
Facebook: @planetgeocast
Email: planetgeocast@gmail.com
Website: https://planetgeocast.buzzsprout.com/
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!
——————————————————
Instagram: @planetgeocast
Twitter: @planetgeocast
Facebook: @planetgeocast
Support us: https://planetgeocast.com/support-us
Email: planetgeocast@gmail.com
Website: https://planetgeocast.com/
187 episode
Manage episode 320029146 series 2784864
In this episode, Jesse and Chris follow up on the K-T Extinction episode from last week. Why is Iridium so important in this story? Our show notes summary is below.
Why is Iridium identified in these layers?
- Well, it’s higher in meteorites - but not really high.
- Why is it higher in meteorites though?
- It’s not actually high in meteorites, it’s low in the Earth’s crust! Very very very low.
- Yet, Earth is made of meteorites, so where did the Ir go?
- Most of it is in the core and we talk about why.
- Very rare on the surface of the Earth - only three metric tons mined and used yearly
- The most corrosion resistant substance known - even at high temperatures
- If it's so corrosion resistant, what is it used for?
——————————————————
Instagram: @planetgeocast
Twitter: @planetgeocast
Facebook: @planetgeocast
Email: planetgeocast@gmail.com
Website: https://planetgeocast.buzzsprout.com/
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!
——————————————————
Instagram: @planetgeocast
Twitter: @planetgeocast
Facebook: @planetgeocast
Support us: https://planetgeocast.com/support-us
Email: planetgeocast@gmail.com
Website: https://planetgeocast.com/
187 episode
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