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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.
What else can I help you with?
What are the older rocks that lie under younger rocks?
The older rocks that lie beneath younger rocks are referred to as "bedrock" or "subsurface strata." In geological terms, this relationship is described by the principle of superposition, which states that in an undisturbed sequence of sedimentary rocks, the oldest layers are at the bottom and the youngest are at the top. These older rocks may include various types of sedimentary, metamorphic, or igneous formations that have been buried and subsequently overlain by newer deposits.
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!
How can older rocks be found on top of younger rocks in a cross-section?
This can happen due to the process of tectonic activity, where older rocks are pushed up and over younger rocks during mountain-building events, known as thrust faults. As a result, the relative positions of rocks are altered, with older rocks ending up on top of younger rocks in the Earth's crust.
What older rocks lie under younger rocks?
the answer is the principle of superposition
What is it called when younger rocks are layered on top of older rocks?
superposition
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.
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 .
How can older rocks be found above younger rocks in a cross section?
There are two possible explanation. In one cases the underlying younger rock could be an igneous intrusion, formed when molten rock was injected into pre-existing rock and then cooled. Another explanation might be that the beds were overturned as the rock was deformed and tilted.
What is likely to be true about the age of rocks in deeper and deeper layers?
In general, rocks found in deeper layers are older than rocks found in shallower layers due to the principle of superposition, which states that younger rocks are usually on top of older rocks. This is based on the idea that sedimentary rock layers are deposited in chronological order over time.
Are fossils found in upper layers of sedimentary rocks are older than fossils found in no one there is a sedimentary rocks?
Fossils found in the upper layers of sedimentary rocks are generally younger than those found in lower layers, due to the principle of superposition, which states that in undisturbed layers, older sediments are deposited first and are buried by younger sediments. If there are no sedimentary rocks present, it is impossible to compare their ages directly. Thus, the age of the fossils can vary significantly depending on their specific geological context.
What are older rocks that lie under younger rocks called?
You may be referring to an "outlier" which is an area of older rocks surrounded by younger ones due to faulting and erosion removing layers of younger rocks and forcing older ones up into them. You may also potentially be referring to a xenolith. This is a fragment of older material that has not melted that is trapped within lava or other younger igneous material.
How old are rocks found in Apollo missions?
The moon rocks are older then the rocks found on earth.
