Sea Floor Young And Old

Why is the seafloor so young.

Sea floor young and old.

This is because the oldest sea floor is subducted under other plates and replaces by new surfaces. The oldest oceanic crust is about 260 million years old. The ocean plates spread and grow in opposite directions so rocks that are equidistance from the center have the same magnetic polarity and age. Oceanic crust tends to get colder and denser with age as it spreads off the mid ocean ridges.

Lembeh strait north sulawesi indonesia. New ocean floor is continually added by the process of sea floor spreading. This proves that ocean floor is being destroyed therefore all ocean floor rocks are young compared to the age of. Octopus is inside a plastic cup and is dragging a bivalve shell with its arm so as to put a lid on its plastic home.

The tectonic plates are constantly in motion and new surfaces are always being created. This continual motion is evidenced by the occurrence of earthquakes and volcanoes. Start studying sea floor spreading. The oldest crust in the ocean dates back to the early cretaceous 100.

And that new crust was being formed and old crust was being destroyed in a continuous process that had been going on for most of earth s history. The mid atlantic ridge for instance separates the north american plate from the eurasian plate and the south american plate from the african plate the east pacific rise is a mid ocean ridge that runs through the eastern pacific ocean and separates the pacific plate from the north american. When making a multi layer cake the adjoining surface between layers is smooth. It gets so dense that it sinks in the.

Learn vocabulary terms and more with flashcards games and other study tools. As the magma and lava cool at seafloor spreading centers whatever magnetic field is present get ingrained into the rock. There is a rather strenuous algebraic solution the answer is old is 30 young is 18when old was 18 young was 6. Proof thatthe sea floor is spreading 1.

Every so often it has occurred over 170 times over the past 100 million years the poles will suddenly switch. The amount of sediment on the sea floor simply does not support a billions of years old ocean but fits well with a young earth when the accelerated erosion rates during and immediately after the flood are accounted for. This phenomenon is known as sea floor spreading. Lack of erosion evidence between strata.

Remember the earth is 4 6 billion years old. The oldest ocean floor rocks ever found are 180 million years old. Margined octopus amphioctopus marginatus young octopus seeking shelter among litter on the ocean floor. This sounds old but is actually very young compared to the oldest continental rocks which are 4 billion years old.

It is due to the process of subduction.