Chlorine 36 rock exposure dating

Changes in the earth's magnetic dipole field strength are the most significant source of temporal variability in production rates Gosse et al. All articles with dead external links Articles with dead external links from June Articles with permanently dead external links. Showing of 17 extracted citations. Rates of nuclide production must be estimated in order to date a rock sample. The sample has been uniformly exposed to cosmic rays no erosion, snow, water, soil or vegetation coveror the duration and nature of cover must be accountable.

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The age ranges can be plotted together on an age vs.

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The accumulation of cosmogenic chlorine-36 in rocks: a method for surface exposure dating.

A variety of snow shielding scenarios was used in order to assess the sensitivity of the snow cover parameter on age. This is important for geologists to understand when using cosmogenic isotope ages themselves to try to interpret geomorphic relationships on ice-free vs. Although not the focus of this paper, it should be noted that there are significant systematic errors i. Improving in situ Cosmogenic Chronometers. There is an apparent decrease in the production of 36 Cl over the last 30, yr in the low and mid-latitudes; however, this decrease is not recorded in polar records.

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