Phrases with «cosmogenic isotopes»

Cosmogenic isotopes are atoms that are produced by cosmic rays from space when they interact with elements in the Earth's atmosphere or on its surface. These isotopes are used by scientists to study the Earth's history and processes, such as dating rocks or tracking how they are eroded by natural forces. Full definition

cosmogenic isotopes

Sentences with «cosmogenic isotopes»

Prior to direct telescopic measurements of sunspots, which commenced around 1610, knowledge of solar activity is inferred indirectly from the 14C and 10Be cosmogenic isotope record in tree rings and ice cores, respectively, which exhibit solar related cycles near 90, 200 and 2,300 years. (rabett.blogspot.ru)
On the other hand, Esper's data appear to be in close agreement with variations in cosmogenic isotopes whose production rates are indicators of variation in solar irradiance, and thus, global temperatures on Earth. (climateaudit.org)
«Recently, Abreu et al. (2012, hereafter A2012) made a new attempt in this direction by comparing periodicities detected in the records of cosmogenic isotopes 10Be and 14C (or quantities derived from them) as proxies for solar activity in the past 9400 years with those of the torque exerted on a thin shell of an ellipsoidally deformed Sun.» (landscheidt.info)
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Phrases with «cosmogenic isotopes»

Sentences with «cosmogenic isotopes»

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