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This applies to sedimentary rocks. If you think about how sediments settle to the bottom of water, then obviously newer ones are on top of old ones. As the weight of successive layers squeezes the lowest ones into rocks, the order of layers is preserved. This happens even if the layers are subsequently tilted. Very occasionally the order is disrupted if whole sections of rock are cracked away and inverted by earth movements.
Igneous rocks are formed from molten magma, which can squeeze into cracks in existing rocks, so where igneous rocks are concerned, the argument doesn't apply.
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What is the difference between relative ages of and relative position of rocks?
Age is how old the rock is relative to other rocks, position is where the rock is in relation to other rocks. Tectonic motion and other forces can easily turn a portion of the Earths crust upside down resulting in older rock lying above younger layers.
You find fossil A at 35 feet and fossil B at 135 feet Which one is older?
fossil b is older new rocks get pushed to the top and older rocks go down
What states that for undisturbed rocks the oldest rocks are on the bottom and the rocks become younger and youngers towards the top?
To me generally I think it's Principle of Superposition : )
Which type of rocks form by altering older rocks by intence heat or pressure or both?
help me! i want to know!
What features of sedimentary rocks are unlikely to be found in metamorphic rocks what features of metamorphic rocks do not occur in sedimentary rocks?
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How can older rocks be found on top of younger rocks in a cross-section?
If the strata layers are folded or tilted then the older rocks can be found on top of the younger rocks in a cross-section.
What is it called when younger rocks are layered on top of older rocks?
superposition
What older rocks lie under younger rocks?
the answer is the principle of superposition
What states older rocks lie under younger rocks?
the answer is the principle of superposition
In undisturbed rocks The older rock on the bottom and the younger of the rocks are on top?
yes.
Are the Rocks near axial are younger or older than the rocks in Oregon?
What is axial?
What is supersition?
It says the younger rocks lie above older rocks if the rocks have not been disturbed .
Is it true Older sedimentary rocks are usually found beneath younger ones?
If the strata layers are folded or tilted then the older rocks can be found on top of the younger rocks in a cross-section.
How can older rocks be found above younger rocks in a cross section?
Older rocks can be found above younger rocks in a cross section due to processes like faulting and folding. Faulting occurs when rock layers break and move along a fault plane, causing older rocks to be displaced above younger rocks. Folding occurs when rock layers are subjected to compressive forces, resulting in older rocks being pushed up and over younger rocks. These geologic forces create the observed order of rock layers in a cross section.
States that older rocks lie below younger rocks in undisturbed sequence?
its superposition
How are rocks near continents different from rocks found near centers of seafloor spreading?
Rocks near continents(on the margins of oceanic basins) are generally older and rocks near a center of sea floor spreading are younger
How old are rocks found in Apollo missions?
The moon rocks are older then the rocks found on earth.
