28/08/2026
🌏UCLM-FINEST🌏
💥HISTORY AND SCIENCE💥
☁️DEEP EARTH BLOBS☁️
✅️Scientists found two giant, super-hot rock structures deep inside the Earth, known as large low shear velocity provinces.
✅️These massive blobs sit under Africa and the Pacific Ocean.
✅️Experts discovered them in the 1970s, but their exact age and function remain heavily debated.
Deep Earth blobs—formally called Large Low-Shear-Velocity Provinces (LLSVPs)—are two massive, continent-sized regions of dense rock sitting nearly 1,800 miles (2,900 kilometers) below the surface right at the boundary between Earth's molten outer core and the lower mantle. One sits beneath the African continent and the other beneath the Pacific Ocean.
WHAT ARE THEY?
✅️Size: Each blob is hundreds of times taller than Mount Everest and so massive that seismic waves slow down significantly when passing through them.
✅️Difference: They are chemically and thermally distinct from the surrounding mantle, likely containing higher amounts of iron.
✅️Location: They sit on opposite sides of the planet, resting directly on top of the Earth's core.
LEADING THEORIES ON THEIR ORIGIN
✅️Theia Impact:
Some scientists believe they are dense remnants of Theia, an ancient Mars-sized planet that crashed into the young Earth 4.5 billion years ago in the giant impact that also formed our Moon.
✅️Sinking Crust:
Another theory suggests they are massive accumulations of ancient oceanic crust that sank via subduction over billions of years and piled up at the bottom of the mantle.
HOW THEY SHAPE OUR PLANET
✅️Volcanoes and Plumes:
These hot blobs act like thermal blankets, spawning blazing columns of hot rock called mantle plumes that rise to the surface and fuel major volcanic hotspots like Hawaii and Iceland.
✅️Core Dynamics:
Because they trap heat unevenly against the liquid outer core, they influence the movement of molten iron and help shape Earth's magnetic field.
