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Why can't geologists use rocks from earth to learn how long ago earth formed?
Because all of the rocks that were around when Earth formed have been recycled by plate tectonics and erosion. Hoped I helped!!
Why might metamorphic rocks form near tectonic plate boundaries?
Metamorphic rocks are formed through high pressure and temperature. At tectonic boundaries there are abundances of both.
What type of plate boundary formed Chimney Rock?
None, this formation is in the center of a continent. It is an erosion feature in sedimentary rocks.
What can magma do?
magma can make igneous rocks! igneous rocks are new rocks found in the earths crust formed around the plate boundaries. Magma from the mantle rises upwards towards the surface forming igneous rocks when it cools eg:-basalt ,granite
What kinds of rocks formed when mt Vesuvius erupted?
it formed igneous rocks
What eventually happens to the sea floor that is carried away from the mid ocean ridge?
if the western side of the plate is in the midoceanic ridge side then the other side ie. the eastern side of the plate would subduct under another plate on that side..as u know that earth's area is constant and no extra mass can be added so if one part is enlarging then the other part should obviously subduct...note thta' the eastern margin has the oldest rock...oldest rocks have high density so it will subduct under another younger oceanic plate or continental plate..
What is the contenental crust made up of?
less dense rocks such as granite.
Why are new igneous rocks formed at constructive and destructive plate boundaries?
dont no
How will foliation in continental metamorphic rocks formed during subduction be oriented?
perpendicular to the direction of plate movement :)
Why can't geologist use rocks from earth to learn how long ago earth formed?
Because all of the rocks that were around when Earth formed have been recycled by plate tectonics and erosion. Hoped I helped!!
Why can't geologists use rocks from earth to learn how long ago earth formed?
Because all of the rocks that were around when Earth formed have been recycled by plate tectonics and erosion. Hoped I helped!!
What causes an oceanic trench to form?
They are formed at destructive plate boundaries where one plates subducts under another. The deep sea trench marks the point at which the denser plate ( or faster plate when it is oceanic vs. oceanic) begins to subduct the lighter one. They are very long, narrow and steep-sided depressions in the ocean floor.
Why might metamorphic rocks form near tectonic plate boundaries?
Metamorphic rocks are formed through high pressure and temperature. At tectonic boundaries there are abundances of both.
What type of plate boundary formed Chimney Rock?
None, this formation is in the center of a continent. It is an erosion feature in sedimentary rocks.
How was rocky mountains formed?
The Rocky Mountains were formed by the collision of tectonic plates, the North American plate and the Pacific plate. When they collided, rock on each side was forced upwards or downwards. So rocks came up out of the ground on the west side of the North American Plate.
Why is it that ancient rocks are found on the continents and not on the ocean floor?
The entire ocean floor is recycled in roughly 160 million year cycles through the process of plate tectonics. Because continental plates do not subduct, the rock is much, much older, particularly in the continental interior.
Rocks are formed when magma does what?
Rocks are formed when magma cools.
