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Apatite u pb dating

Google(); req('single_work'); $('.js-splash-single-step-signup-download-button').one('click', function(e){ req_and_ready('single_work', function() ); new c. This study presents apatite LA-ICP-MS U-Pb age and trace elements concentrations data from different granite types from the Tatra Mountains, Poland.To learn more or modify/prevent the use of cookies, see our Cookie Policy and Privacy Policy.

Apatite crystals from a hybrid cumulative rock from the Western Tatra Mountains were dated at 344 ± 3 Ma.5.1) Mc Clure Mountain apatite fractionation standard (MMap) The Cambrian Mc Clure Mountain syenite of Colorado is well known as the source of the widely used Ar hornblende standard MMhb and apatite from this rock has a published U-Pb TIMS age of 523.5 Ma.Typical self-normalized concordia age uncertainty for 10-12 spots during a typical sample run is between 1.2-2.0% at the 2 sigma level. Furthermore, attempts to apply in situ SHRIMP and laser ablation (LA) ICPMS U-Pb techniques on apatite have been hindered by the lack of well-characterized matrix-matched standards to correct for elemental fractionation, as well as by the difficulty in accurately and precisely measuring Pb to provide a robust common lead correction that does not rely on an assumption of concordance. This has previously limited accurate apatite U-Pb dating to destructive isotope dilution methods.

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