Is radiometric dating reliable


22-Jan-2020 16:02

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In this period a number of comprehensive cosmogonies were proposed.

These were long on armchair speculation and short on substantive supporting evidence.

This did not matter; the theological perspective did not require physical rationalization. In part, these have been the result of natural factors, including the climatic changes of the Little Ice Age, and the Spörer and Maunder solar activity minima.In addition, however, changes in human activity since the middle of the 19th century have released C that occurred prior to 1955 mean that a single radiocarbon date may yield an imprecise calibrated age consisting of several possible age ranges.This difficulty may be overcome by obtaining a series of C dates from a sequence and either wiggle-matching these dates to a radiocarbon calibration curve or using additional information on dated materials and their surrounding environment to narrow the calibrated age ranges associated with each C levels between consecutive years offer the possibility of dating recent samples with a resolution of from one to a few years.

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These approaches to dating the recent past are illustrated using examples from peats, lake and salt marsh sediments, tree rings, marine organisms and speleothems.Descartes, however, attempted to discern a physical history of the Earth.