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Ancient Ocean Floor

All articles tagged with #ancient ocean floor

science2 years ago•5 min saved

Unraveling the Enigmatic Secrets of Earth's Core

Recent studies have revealed surprising discoveries about Earth's core, suggesting that it may be spinning and encased by an ancient ocean floor. The core's magnetic field, crucial for protecting our planet from solar radiation, has been weakening over the past 50 years, particularly in the South Atlantic Anomaly. Scientists are puzzled by this anomaly and its split into two blobs. Additionally, the temperature at the boundary between the mantle and the core shoots up, indicating the presence of an unknown layer or phenomenon. Researchers propose that bits of ancient ocean floors may be wrapped around the core, providing a potential explanation.

via Business Insider|

#ancient-ocean-floor #core-mantle-boundary #earths-core

earth-science2 years ago•4 min saved

Unveiling Earth's Ancient Ocean Floor: A Mysterious Core Revelation

Scientists have created a detailed map of the geology beneath Earth's southern hemisphere and believe that an ancient ocean floor may be encasing the planet's mysterious core. This discovery could explain why the core is hotter than the mantle above it. The "recycled" ocean floor acts like a blanket, trapping heat inside the core. The findings provide insights into the Earth's formation and could help understand plate tectonics and the planet's evolution over time.

via Business Insider|

#ancient-ocean-floor #earth-science #earths-core

earth-science2 years ago•2 min saved

Unveiling Earth's Hidden Core: Ancient Structures and Metal Worlds

A high-resolution map of Earth's Southern Hemisphere has revealed the presence of an ancient ocean floor that may wrap around the core. This thin but dense layer exists around 2,900 kilometers below the surface, at the core-mantle boundary. Seismic investigations using monitoring stations in Antarctica detected ultralow velocity zones (ULVZs) that suggest the presence of oceanic crust buried over millions of years. The ULVZs could be mountains on the core, some up to five times taller than Mt. Everest. The discovery provides insights into the heat transfer between the core and mantle and the overall processes driving our planet.

via ScienceAlert|

#ancient-ocean-floor #earth-science #earths-core

earth-science2 years ago•3 min saved

Uncovering Earth's Hidden Mountains and Ancient Ocean Floor Near the Core

Researchers from The University of Alabama used seismic imaging to discover a dense layer of ancient ocean floor, or ultra-low velocity zone (ULVZ), between Earth’s core and mantle. This layer of ULVZ is denser than the rest of the deep mantle, slowing seismic waves reverberating beneath the surface. These underground “mountains” may play an important role in how heat escapes from the core, the portion of the planet that powers the magnetic field.

via SciTechDaily|

#ancient-ocean-floor #core-mantle-boundary #earth-science

science2 years ago•3 min saved

Study suggests ancient ocean floor surrounds Earth's core.

Seismic imaging of Earth's interior has revealed a layer between the core and the mantle that is likely a dense, yet thin, sunk ocean floor, according to research led by The University of Alabama. This ultra-low velocity zone (ULVZ) is denser than the rest of the deep mantle, slowing seismic waves reverberating beneath the surface. The latest data suggests this layer of ancient ocean floor may cover the core-mantle boundary. ULVZs can be well explained by former oceanic seafloors that sunk to the core-mantle boundary.

via Phys.org|

#ancient-ocean-floor #core-mantle-boundary #earths-interior