Geology Bites: An Earth and Planetary Science Podcast

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Joe MacGregor on Mapping the Geology of Greenland Below the Ice

With most of Greenland buried by kilometers of ice, obtaining direct information about its geology is challenging. But we can learn a lot from measurements of the island’s geophysical properties — seismic, gravity, magnetic from airborne and satellite surveys and from its topography, which we can see relatively well through the ice using radar. In the podcast, Joe MacGregor explains how he created a new map of Greenland’s geology and speculates on what we can learn from it. MacGregor is a Research Physical Scientist at NASA’s Goddard Space Flight Center. Illustrations and full transcript: https://geologybites.com/joe-macgregor

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  Tony Watts on the Mechanics of Tectonic Plates

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  Torgeir Andersen on Ultrahigh-Pressure Metamorphism

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  Brian Wernicke on Lithospheric Extension and the Basin and Range Province

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  Bernhard Steinberger on Whether Hotspots Are Fixed

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  Sonia Tikoo on the Moon's Magnetic Field

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  Steve Brusatte on the Dinosaurs That Survived the Asteroid

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  Alec Brenner on When Tectonic Plates First Moved

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  Steve Jacobsen on Materials in Extreme Environments

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  Esther Sumner on Turbidity Currents

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  Hal Levison on the Mission to Jupiter's Trojan Asteroids

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  Sara Pruss on the First Reef Builders

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  Michael Manga on Wet Eruptions

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  Carina Hoorn on the Evolution of the Amazon Basin

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  Anat Shahar on What Makes a Planet Habitable

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  Keith Klepeis on How Plutons Form

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  Tom Herring on High-Precision Geodesy