When scientists find a new rock formation or fossil assemblage, how do they determine how old it is? The answer lies in the many varied methods of geologic dating. In this episode, we’ll discuss how we can sort the events in Earth history, how we calculate specific ages for ancient materials – including a deep-dive into radiometric dating! – and most importantly, how these many techniques support and complement each other.
In the news: gaze following, polar pterosaurs, pachycephalosaur heads, and giant marsupials.
Time markers:
Intro & Announcements: 00:00:00
News: 00:06:50
Main discussion, Part 1: 00:38:45
Main discussion, Part 2: 01:31:10
Patron question: 02:20:18
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The Intro and Outro music is “On the Origin of Species” by Protodome.
More music like this at http://ocremix.org.
Musical Interludes are "Professor Umlaut" by Kevin MacLeod (incompetech.com). Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/
Episode 139 - Vultures
Episode 138 - The Moon
Episode 137 - Fossilization
Episode 136 - Seahorses
Patron Mini-Episode Compilation #2
Episode 135 - Seeds
The Art of Common Descent with Rob Soto
Episode 134 – Sanguivores (Blood-Eaters)
Episode 133 - Symbiosis
Episode 132 - Mary and Louis Leakey
Episode 131 - Volcanoes
Episode 130 - Sense of Smell
End of the Year Q&A 2021
Episode 129 - Rhinos
Episode 128 - The Deep Sea
Silver Screen Science – Prologue, Jurassic World: Dominion
Episode 127 - The Hell Creek Formation
Episode 126 - Mimicry
Episode 125 - Orchids
Spook-E - Triffids
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