Start What indicates that two are dating

What indicates that two are dating

Presumably if all the world’s outcrops were integrated, sediments representing all of geologic time would be available for examination.

Correlating two separated outcrops means establishing that they share certain characteristics indicative of contemporary formation.

The most useful indication of time equivalence is similar fossil content, provided of course that such remains are present.

Following Smith’s pioneering work, generations of geologists have confirmed that similar and even more extensive fossil sequences exist elsewhere.

The first step is determining whether similar beds in separated outcrops can actually be traced laterally until they are seen to be part of the same original layer.

Suppose there exist a number of fossil-bearing outcrops each composed of sedimentary layers that can be arranged in relative order, primarily based on superposition.

Suppose, too, that all the layers contain a good representation of the animal life existing at the time of deposition.

In addition, its fossilized population should be sufficiently abundant for discovery to be highly probable.