Most people accept the current old-earth (OE) age estimate of around 4.6 billion years.This age is obtained from radiometric dating and is assumed by evolutionists to provide a sufficiently long time-frame for Darwinian evolution.Geochronologists do not claim that radiometric dating is foolproof (no scientific method is), but it does work reliably for most samples.
by Mark Milligan Geologists generally know the age of a rock by determining the age of the group of rocks, or formation, that it is found in.
The age of formations is marked on a geologic calendar known as the geologic time scale.
This challenge is mainly headed by Creationism which teaches a young-earth (YE) theory.
A young earth is considered to be typically just 6,000 years old since this fits the creation account and some dating deductions from Genesis.
Absolute dating places events or rocks at a specific time.
If a geologist claims to be younger than his or her co-worker, that is a relative age.
Development of the geologic time scale and dating of formations and rocks relies upon two fundamentally different ways of telling time: relative and absolute.
Relative dating places events or rocks in their chronologic sequence or order of occurrence.
Principle of superposition: Nicolas Steno realized that correct relative ages of horizontal (undeformed) strata could be determined by their position in a sequence of rock. Principle of cross-cutting Relationship: holds that an igneous intrusion or a fault must be younger than the rocks it intrudes or displaces.
This principle is very important in relative dating of geologic events and interpreting Earth history. Principle of lateral continuity: states that sediment extends laterally in all directions until it thins and pinches out or terminates against the edge of the depositional basin. Principal of original horizontality: Steno reasoned that sediment is deposited in essentially horizontal layers (Wicander & Monroe, 1995).
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