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because they are sedimentary rock

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When sediments are disturbed the oldest layers are found at the?

In disturbed sediments without layers, the relative age of the sediments would be unknown.


Where are the oldest layers of sediments located?

The oldest layers of sediments are typically found at the bottom of a sedimentary rock sequence, with the youngest layers at the top. Over time, new layers of sediments accumulate on top of older layers, creating a chronological sequence with the oldest layers at the bottom.


In rock layers what is usually found at the bottom?

In rock layers, the oldest rocks are typically found at the bottom. This is due to the principle of superposition, which states that in an undisturbed sequence of sedimentary rocks, the oldest rocks are deposited first and are at the bottom, while the youngest rocks are at the top.


Why are sedimentary rocks formed in layers?

Sedimentation of transported weathered and eroded material is continuous, cyclical, or event based. New sediments are deposited on top of existing sediments, forming layers that may be visible in a sedimentary rock body.


The Law of Thermodynamics says that the oldest layer of sediment will be found beneath younger layers of sediments.?

true A+


The law of thermodynamics says that the oldest layer of sediments will be found beneath younger layers of sediment?

true A+


What type of rock layer are tertiary fossils usually found in?

Tertiary fossils are usually found in sedimentary rock layers. Sedimentary rocks are formed by the accumulation and compression of sediments over time, making them a common host for preserving fossils from the Tertiary period.


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 kind of rocks would you find fossils in and why?

Fossils are found in sedimentary rock because it is layers of sand, rock, and sediments, and the bones fall between the layers where the form into fossil's.


Why do sediments form in layers?

The action of water and gravity cause them to form in layers.


Where are the oldest layers of a sandstone rock located?

Sandstone is a sedimentary rock. Sedimentary rocks form from sediments that deposited by the wind and water. Over the time those sediments will get pressed and cemented together. It can take millions of years for sediments to become a rock. So the oldest layers of a sandstone are on a bottom.


Where do sediments settle in layers?

Sediments settle in layers at the bottom of bodies of water, such as lakes, rivers, and oceans. Over time, as more sediments accumulate, they become compacted and cemented together to form sedimentary rock.