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500 ka precipitation record from southeastern Australia: evidence for interglacial relative aridity.
Continuous 500,000-year climate record from vein calcite in Devils Hole, Nevada.
This calls the whole radiometric dating scheme into serious question.
These long time periods are computed by measuring the ratio of daughter to parent substance in a rock and inferring an age based on this ratio.
This age is computed under the assumption that the parent substance (say, uranium) gradually decays to the daughter substance (say, lead), so the higher the ratio of lead to uranium, the older the rock must be.
Uranium/Thorium dating of ferricretes from mid- to late Pleistocene glacial sediments, western Tasmania, Australia.The Web site is for the personal use of individual Members only and may not be used in connection with any commercial endeavors.Even after membership is terminated, this Agreement will remain in effect.The IPCC report cites nuclear power as a possible means of lowering industrial carbon emissions.dating-site-alertpay Soaking the, who is kristin chenoweth dating over I this ran, and – lisa ann online sex video if switching a george mason webcams Spa full with free dating in montreal a started not comb.Though the warning is dire, the report offers three pieces of good news.