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An asteroid with a diameter of approximately 300 km to 500 km falls in the Democratic Republic of Congo and collides with Earth!
The asteroid falls at an angle of 48 degrees and passes through the Earth.
As it passes through the Earth's mantle, two donut mantle convection currents occur.
One is an underwater mountain range (rift valley, ridge) that extends from the Indian Ocean to the Atlantic Ocean.
The second is the Pacific submarine mountain range (oceanic ridge, rift valley).
Donut mantle rises due to heat! So, when it meets the crust, the crust separates.
The remaining submarine mountains (rift valleys) are caused by two donut mantle convections following the Himalayan asteroid impact.
In other words, the asteroid fell into the sea east of South Africa (now Tanzania).
As it pierced the Earth and passed through the Ural Mountains, two donut mantle convection currents occurred.
The angle fell at an angle.
The first donut mantle convection created underwater landforms from the Australian South Sea, underwater rift valleys (undersea mountain ranges), and from the Philippine Sea to New Zealand.
The second donut mantle convection gave rise to Arctic ocean ridges and rift valleys.
In other words, two giant asteroids will fall and the continent will split (split)!
Other large asteroid impacts have pulled or stretched convection currents in the otherwise circular donut mantle, causing the African continent to become uncircular!
For reference, the primary vortex (donut mantle convection) of the asteroid that fell in the Democratic Republic of Congo, Africa, was cut off by the asteroid impact in the Himalayas.
The tip of the cut donut mantle rose to become the island of Iceland.
(donut = doughnut)
*If the asteroid is about 100 kilometers in diameter, it has a core of its own.
That's why doughnut mantle convection occurs twice.
Once as the outer shell is shed, and twice as the core travels through the mantle!
The Democratic Republic of Congo asteroid impacted Earth at an inclination of about 48 degrees.
So it didn't hit the Earth's outer core! 🌍🌍⭐☄