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Younger than the layer below it.

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Tanya Dach

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3y ago

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In general the law of superposition states that in an undeformed sequence of sedimentary rocks each layer is .?

older than the one above it


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.


When looking at a cross section of a sedimentaryrock depositwhere would you find the oldest?

As a general rule, the oldest rocks in a sedimentary sequence is at the bottom. The exceptions are sequences which have been turned upside-down, but this is rare.


What is the general term for a rock fragment present in a sedimentary rock?

The general term for a rock fragment is a sedimentary rock. This is taught in science.


What are The two general categories of biogeochemical cycles?

gaseous and sedimentary


What does the principle of superposition tell you about the relative ages of sedimentary rock layers?

There are two types of age determinations. Geologists in the late 18th and early 19th century studied rock layers and the fossils in them to determine relative age. William Smith was one of the most important scientists from this time who helped to develop knowledge of the succession of different fossils by studying their distribution through the sequence of sedimentary rocks in southern England. It wasn't until well into the 20th century that enough information had accumulated about the rate of radioactive decay that the age of rocks and fossils in number of years could be determined through radiometric age dating.Principle of superposition: Younger sedimentary rocks are deposited on top of older sedimentary rocks.Principle of cross-cutting relations: Any geologic feature is younger than anything else that it cuts across.The dating of fossils was originally done by their placement in a geologic column of rock strata. Because of the Law of Superposition, the deeper the stratum, the older it is (in an undisturbed body of rock or sediment). Fossils which were evident in a particular stratum, but missing from other strata were noted as "index" fossils. The presence of these fossils indicated the age of the stratum relative to other layers. The layers of stratum were placed in a geologic column, subdivided, and assigned names based on the presence of different types of fossil organisms.This is the basis of "relative dating" of rock layers and fossils, a dating technique that was in effect until the advent of radiometric techniques in the twentieth century.


What is the general term of the sequence 0 1 1 2 2 3 3.?

The general term for the sequence 0, 1, 1, 2, 2, 3, 3 is infinite sequence.


How the law of superposition helps scientist determine relative age?

Younger layers are deposited on top of older layers, whether the layer is sedimentary or volcanic. Occasionally faults may result in overthrusts, where a series of older layers may be pushed over the top of younger layers. But this is rare. In general, the older layers will be the lower layers.


What is the general name for microcrystalline quartz in sedimentary rocks?

Chalcedony


What is the general goal of sedimentary geology?

To understand the paleo environments of the planet.


What is the general appearance of sedimentary rocks?

They look like perky nipples


What is the general size of a main sequence?

It can have many different sizes. Only the largest giants are no longer main sequence stars.