Sentences with phrase «cosmogenic nuclides»
Cosmogenic nuclides are tiny particles or atoms that are formed in the Earth's surface by cosmic radiation from space. They are created when high-energy particles from space collide with atoms in the atmosphere and on the Earth's surface. These nuclides provide information about the age of rocks and other materials, as well as the level of exposure to cosmic rays. They help scientists understand the history and processes of our planet. Full definition
development of new techniques such as cosmogenic nuclide dating and the refinement of.
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If the Abreu et al. hypothesis is correct, it should be possible to find the same periodicities in the records of cosmogenic nuclides at earlier times.
To ascertain the age of the boulders strewn by the glaciers and thus come up with a date when glaciers were at their greatest extent, Willenbring and colleagues used a technique known as cosmogenic nuclide exposure dating, which measures the chemical residue of supernova explosions.
We will be using cosmogenic nuclide dating to determine the ages of granite boulders exposed at high elevations across the eastern margin of Alexander Island.
«If this stone had exceedingly high cosmogenic nuclides, that would be an argument for it coming from Mercury, because Mercury is so close to the sun,» Korotev said.
Other applications of past geomagnetic field reconstructions include investigations of atmospheric ionisation by galactic cosmic rays (e.g., Usoskin et al. 2008, 2010) or in - situ cosmogenic nuclide production rates to study Earth surface processes (e.g., Pigati & Lifton 2004; Lifton et al. 2008).
Cosmogenic nuclide dating is useful for directly dating rocks on the Earth's surface.
Cosmogenic nuclides are isotopes that are produced by interaction of cosmic rays with the nucleus of the atom.
... The evidence comes from a close correlation between inferred changes in production rates of the cosmogenic nuclides carbon - 14 and beryllium - 10 and centennial to millennial time scale changes in proxies of drift ice measured in deep - sea sediment cores.
The record of common production rate PC of the cosmogenic nuclides 14C and 10Be, Stei, is depicted in panel row 4, column 2.
We also analyse other available proxies of solar activity, such as variations of the cosmogenic nuclides 10Beand 14Cas well as auroral activity.