What type of rocks are found at the Mid-Ocean Ridge?
As old oceanic crust is subducted and melted into magma, new oceanic crust in the form of igneous rock is formed at mid-ocean ridges and volcanic hotspots.
Where would you expect to find the oldest rock on the ocean floor?
The oldest patch of undisturbed oceanic crust on Earth may lie deep beneath the eastern Mediterranean Sea – and at about 340 million years old, it beats the previous record by more than 100 million years.
Where would you be most likely to find the oldest rocks on Earth?
The oldest rocks can be found in ocean trenches that are very deep. At the outer edges of ocean crust, oldest rocks can’t be found as relatively newer ones are formed continually and mostly found.
Where would you expect to find the youngest crust in the Pacific Ocean?
The youngest crust of the ocean floor can be found near the seafloor spreading centers or mid-ocean ridges. As the plates split apart, magma rises from below the Earth’s surface to fill in the empty void.
Where is the oldest crust located?
Mediterranean Sea
Is the mantle is hotter than the crust?
New data suggests that the upper parts of Earth’s mantle are around 60°C (108°F) hotter than previously expected. Previous estimates have put temperatures ranging from anywhere between 500 to 900°C (932 to 1,652°F) near the crust, to 4,000°C (7,230°F) closer to Earth’s core.
Is the mantle hotter than the sun?
New measurements suggest the Earth’s inner core is far hotter than prior experiments suggested, putting it at 6,000C – as hot as the Sun’s surface. The solid iron core is actually crystalline, surrounded by liquid. But the temperature at which that crystal can form had been a subject of long-running debate.
Is it possible to drill to the center of the Earth?
Humans have drilled over 12 kilometers (7.67 miles) in the Sakhalin-I. In terms of depth below the surface, the Kola Superdeep Borehole SG-3 retains the world record at 12,262 metres (40,230 ft) in 1989 and still is the deepest artificial point on Earth.
What would happen if you fell through the center of the Earth?
The strength of gravity at the center of earth is zero because there are equal amounts of matter in all directions, all exerting an equal gravitational pull. With such thick air, you eventually lose momentum and stop your yo-yo motion about the center of the earth. You end up stuck floating at the center of the earth.