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Bedrock: Earth's Earliest History

Dylan Wilmeth
Bedrock: Earth's Earliest History
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  • 41: The Oldest Seafloor
    In 1991, a mysterious, striped red and gray rock was discovered on a cold Greenland isle. Years later, this rock would rock the scientific world with multiple debates about the early oceans and life. What exactly is this rock, and why do we care? Stay tuned, and on the way, we’ll learn how scientists can officially argue with each other.Extra Credit: Eat something with peanut butter and chocolate, pet a large and a small dog, or make sure your vaccines are up to date!Donate to support the show- anything is appreciated!Click here for the audience survey!Click here to read Dylan's Nature paper!
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  • 40: The Time War
    How old is the oldest slice of Earth's seafloor? The answer is more contentious than you would think. Today, we visit one of the most debated locations in the show: a small island off the Greenland shore named Akilia. Everything about these rocks has been contested, and we'll meet three scientists who form cornerstones of the debates.Extra Credit: Watch something on an old CRT TV, or count tree rings in a stump.
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    29:45
  • 39: The Shattered Planet
    Earth’s crust is shattered into dozens of moving plates, but many other worlds operate very differently. What are some alternatives to plate tectonics?Today, we’ll compare tectonics on Earth with tectonics on other planets, through the lens of 3.9 billion-year-old rocks from Greenland. On the way, we’ll visit the westernmost town in the USA, visit one of our cosmic neighbors, and learn about the Occam’s Razor of geology.Extra Credit: find today’s planet in the night sky, drop a pebble every day this week and see if anything changes, or read “The Long Rain” by Ray Bradbury.Donate to support the show- anything is appreciated!Click here for the audience survey!Click here to read Dylan's Nature paper!
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    37:31
  • 38: Hidden Gems
    This season's final arc is set in Greenland. Let's start with the most common rocks in the region: what are they and what stories do they tell about the world 3.9 billion years ago?Along the way, we'll weave a tapestry of stone, boil some rocks, and learn a bit about Dylan's birthstone. Extra credit: try the Play-Doh experiment from this episode, or make some stone soup.Click here for the audience survey!Donate to support the show- anything is appreciated!
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    32:17
  • Bedrock Returns! How to Support the Show
    We're back! After nearly a year, Dylan has updates about his life and the future of the show. Please take the audience survey in the link below to let Dylan know how you'd like to support the show! Also, please check out the donate button if you like what you've heard so far.Click here for the audience survey!Donate to support the show- anything is appreciated!
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Über Bedrock: Earth's Earliest History

This podcast starts at the beginning of Earth's prehistory and works forward through time. Bedrock will explore the first 90% of Earth’s past, a time known as the Precambrian Era. Before humans, before dinosaurs… there was the Precambrian. The Earth was an incredibly alien world, but not a dead one. Along the way, you will build a mental toolkit to see the world like a geologist. You will never look at a mountain, the moon, or pond scum in quite the same way again. Welcome to Bedrock. For transcripts, visuals, and references, check out https://www.bedrockpodcast.com
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