In Earth’s mantle there are two huge ‘islands’ with the size of a continent. These regions are hotter than the surrounding cold sunken tectonic plates, and that they are ancient: at least half a billion years old. These observations contradict the idea of a well-mixed and fast flowing Earth’s mantle
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#EarthMantle #Geology #TectonicPlates #AncientEarth #ScientificDiscovery
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#EarthMantle #Geology #TectonicPlates #AncientEarth #ScientificDiscovery
Utrecht University
Subterranean ‘islands’: strongholds in a potentially less turbulent world
Contrary to what the geography books teach us, there is no such thing as a well-mixed earth's mantle
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An analysis of very low frequency earthquakes reveals a fragment of an old tectonic plate moving under the North American plate at the Mendocino Triple Junction 🌍🔍✨🗺️
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#EarthquakeAnalysis #TectonicPlates #MendocinoTripleJunction #GeologyResearch #SeismicActivity
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#EarthquakeAnalysis #TectonicPlates #MendocinoTripleJunction #GeologyResearch #SeismicActivity
UC Davis
Tiny Earthquakes Reveal Hidden Faults Under Northern California
By tracking swarms of very small earthquakes, seismologists are getting a new picture of the complex region where the San Andreas fault meets the Cascadia subduction zone, an area that could give rise to devastating major earthquakes. The work, by researchers…
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