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- Q2324121 subject Q8419863.
- Q2324121 subject Q8556455.
- Q2324121 abstract "Chlorine-36 is an isotope of chlorine. Chlorine has two stable isotopes and one radioactive isotope: the cosmogenic isotope 36Cl. Its half-life is 301,000 ± 2,000 years. 36Cl decays primarily (98%) by beta-minus decay to 36Ar, and the balance to 36S.Trace amounts of radioactive 36Cl exist in the environment, in a ratio of about (7-10) × 10−13 to 1 with stable chlorine isotopes. This corresponds to a concentration of approximately 1 Bq/(kg Cl).36Cl is produced in the atmosphere by spallation of 36Ar by interactions with cosmic ray protons. In the top meter of the lithosphere, 36Cl is generated primarily by thermal neutron activation of 35Cl and spallation of 39K and 40Ca. In the subsurface environment, muon capture by 40Ca becomes more important. The production rates are about 4200 atoms 36Cl/yr/mole 39K and 3000 atoms 36Cl/yr/mole 40Ca, due to spallation in rocks at sea level.The half-life of this nonreactive isotope makes it suitable for geologic dating in the range of 60,000 to 1 million years.Additionally, large amounts of 36Cl were produced by irradiation of seawater during atmospheric detonations of nuclear weapons between 1952 and 1958. The residence time of 36Cl in the atmosphere is about 2 years. Thus, as an event marker of 1950s water in soil and ground water, 36Cl is also useful for dating waters less than 50 years before the present. 36Cl has seen use in other areas of the geological sciences, including dating ice and sediments.".
- Q2324121 wikiPageWikiLink Q109910.
- Q2324121 wikiPageWikiLink Q11448.
- Q2324121 wikiPageWikiLink Q11547.
- Q2324121 wikiPageWikiLink Q12802.
- Q2324121 wikiPageWikiLink Q161598.
- Q2324121 wikiPageWikiLink Q17148629.
- Q2324121 wikiPageWikiLink Q184395.
- Q2324121 wikiPageWikiLink Q1969703.
- Q2324121 wikiPageWikiLink Q213891.
- Q2324121 wikiPageWikiLink Q2294.
- Q2324121 wikiPageWikiLink Q2937690.
- Q2324121 wikiPageWikiLink Q306786.
- Q2324121 wikiPageWikiLink Q36133.
- Q2324121 wikiPageWikiLink Q467791.
- Q2324121 wikiPageWikiLink Q576621.
- Q2324121 wikiPageWikiLink Q682.
- Q2324121 wikiPageWikiLink Q688.
- Q2324121 wikiPageWikiLink Q696.
- Q2324121 wikiPageWikiLink Q703.
- Q2324121 wikiPageWikiLink Q706.
- Q2324121 wikiPageWikiLink Q8419863.
- Q2324121 wikiPageWikiLink Q8556455.
- Q2324121 comment "Chlorine-36 is an isotope of chlorine. Chlorine has two stable isotopes and one radioactive isotope: the cosmogenic isotope 36Cl. Its half-life is 301,000 ± 2,000 years. 36Cl decays primarily (98%) by beta-minus decay to 36Ar, and the balance to 36S.Trace amounts of radioactive 36Cl exist in the environment, in a ratio of about (7-10) × 10−13 to 1 with stable chlorine isotopes.".
- Q2324121 label "Chlorine-36".