Numerical absolute geologic age dating
Numerical absolute geologic age dating - Hongkong chat
Principles of Stratigraphy Stratigraphy is the study of strata (sedimentary layers) in the Earth's crust.
The numerical or absolute geologic age is usually of much more interest, and provides much more specific information.These are often characterised as the norm, rather than the exception.I thought it would be useful to present an example where the geology is simple, and unsurprisingly, the method does work well, to show the quality of data that would have to be invalidated before a major revision of the geologic time scale could be accepted by conventional scientists.The example used here contrasts sharply with the way conventional scientific dating methods are characterized by some critics (for example, refer to discussion in "Common Creationist Criticisms of Mainstream Dating Methods" in the Age of the Earth FAQ and Isochron Dating FAQ).A common form of criticism is to cite geologically complicated situations where the application of radiometric dating is very challenging.New dating methods are invented all the time, however, most have practical limitations.
Geologic research and mapping requires the determinations of the ages and composition of rocks.
However, we have to have actual samples of the surface material to figure out the absolute geologic age, which make it much harder to determine for extraterrestrial objects.
There are several principals geologists use to determine relative age.
As an example of how they are used, radiometric dates from geologically simple, fossiliferous Cretaceous rocks in western North America are compared to the geological time scale.
To get to that point, there is also a historical discussion and description of non-radiometric dating methods.
The goal of this lecture is come to come to a scientific understanding of geologic time and the age of the Earth.