The statement that the oldest layer will be at the bottom in an undisturbed sequence of sedimentary strata is

Question

is called the Principle of
1.Sedimentation.
2.Superposition.
3.Stratification.
4.Strontiumation.




..i think it's 3.Stratification. .. is that correct?
thank you so much!

Answer 1

Superposition:
The law of superposition (or the principle of superposition) is an axiom that forms one of the bases of the sciences of geology, archaeology, and other fields dealing with stratigraphy. In its plainest form, that is: layers are arranged in a time sequence, with the oldest on the bottom and the youngest on the top, unless later processes disturb this arrangement. The law was first proposed in the 17th century by the Danish scientist Nicolas Steno.


Stratification.
In archaeology, especially in the course of excavation, stratification is a paramount and base concept. It is largely based on the Law of Superposition. When archaeological finds are below the surface of the ground (as is most commonly the case), the identification of the context of each find is vital in enabling the archaeologist to draw conclusions about the site and about the nature and date of its occupation. It is the archaeologist's role to attempt to discover what contexts exist and how they came to be created. Archaeological stratification or sequence is the dynamic superimposition of single units of stratigraphy, or contexts.

Answer 2

Mr. Thompson won't like this....

;-)

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