Rules and principles of relative dating

The principle of lateral continuity states that a given rock bed will extend horizontally for some distance, until it thins out or reaches the edge of a depositional basin.

The principle of cross-cutting relationships states that any geologic feature that off-sets or intersects a series of beds (such as a fault, dike, or sill) must be younger than the beds it cuts across.

Some archaeological strata (often termed as contexts or layers) are created by undercutting previous strata.

An example would be that the silt back-fill of an underground drain would form some time after the ground immediately above it.

This is a postcard of Zion National Park in Utah that my parents got on their visit to the western United States in 2009.

This shows examples of the Law of Superposition as well as the Law of Original Horizontality.

Assuming you are not talking about dating your cousin, the following is offered.

Relative dating Before the advent of absolute dating in the 20th century, archaeologists and geologists were largely limited to the use of relative dating techniques.

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For the relative dating principles, the main points summarized are as follows: Law of Superposition - In an unaltered sequence of sedimentary rocks, the ...The geologic events of tilting, folding and erosion do not have single letter labels. Use your table of events to construct a geologic history of the area.Type the word "tilting", "folding" or "erosion" in the proper position. Provide 350 words describing the geologic history of the area. Relative dating, in simple terms, means looking at a geologic cross-section of an area and putting the events (deposition, faulting, tilting of layers, erosion, igneous intrusions, etc.) in the order that they seemed to have occurred.The basic principles of Relative Time are Uniformitarianism (the present is the key to the past and everything assumes a uniform or constant rate of change) and Actualism (the present is the key to the past and everything assumes a variable rate of change).There are five principles of Relative Dating: Unconformities are a gap or break in the rock sequence that represents time.

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