Extinct radionuclide dating

Posted by / 15-Feb-2015 06:32

Extinct radionuclide dating

We discuss the isotopic evidence for the timing of these events and on how isotope patterns are reflecting current earth structure, the relationship between the earth and other planets, and possible ongoing terrestrial degassing.We also investigate the fact that for some gas isotopes, the atmosphere is not a closed system, but is still evolving on the mega- to giga-year time-scales.

This paper is available on the web via the American Scientific Affiliation and related sites to promote greater understanding and wisdom on this issue, particularly within the Christian community.

A brief introduction to meteoritics will lead to the discussion of timescales of differentiation, mainly from the perspective of extinct radionuclides (Given the timing and nature of the formation of the earth/moon system (especially using extinct radioactivities), we now effects of heat-producing radionuclides on the earth's evolution and structure (including mantle structure, seafloor spreading, and continent formation), and the more recent constraints on the earth's composition afforded by isotopes and geoneutrinos.

We will learn about parent-daughter fractionation associated with geochemical processes (e.g., melting, metasomatism, crystallization).

Further evidence comes from the complete agreement between radiometric dates and other dating methods such as counting tree rings or glacier ice core layers.

Many Christians have been led to distrust radiometric dating and are completely unaware of the great number of laboratory measurements that have shown these methods to be consistent.

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Knowing its past abundance in the atmosphere in the ocean is key to (a) establishing chronology over the past ~50,000 years (radiocarbon dating), (b) understanding past changes in cosmogenic production rates, and (c) diagnosing recent past changes in the carbon cycle.

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