By determining the age of rock samples obtained by drilling on the sea floor.
Its oceanic crust
i never know
i never know
haha i really dont know
By determing the age of rock samples obtained by drilling in the sea floor!:)
hit the books!!
haha i really dont know
Near fault lines, it is there that rocks are created by the rubbing or colliding of the tectonic plates. Rocks could also be made by volcanoes via the cooling of magma and lava. The closer to the fault line you are the newer the rock and the farther away you get the older the rock becomes.
Sorry, you have it entirely reversed.
No. The newest ocean floor is at the mid-ocean ridge.
because the scientists found that the farther the rocks the older the rocks were. so the youngest rocks were found near the mid-ocean ridge. this showed that sea-floor spreading took place. +++ The primary evidence is "magnetic striping": remnant magnetising by the Earth's magnetic field of the iron compounds in the basalt forming the ocean floor. The magnetic traces are parallel to the spreading-ridges, and their polarity reflect the field's periodic reversal. The further from the ridge, the older the stripes. The rock is imprinted with the magnetism as it cools below a certain point in being eruped along the ridge.
Near the mid-Atlantic ridge.