Intercalibration of astronomical and radioisotopic time

@article{Renne1994IntercalibrationOA,
  title={Intercalibration of astronomical and radioisotopic time},
  author={Paul R. Renne and Alan L. Deino and Robert C. Walter and Brent D. Turrin and Carl C. Swisher and Tim A. Becker and Garniss H. Curtis and Warren D. Sharp and Abdur-Rahim Jaouni},
  journal={Geology},
  year={1994},
  volume={22},
  pages={783-786}
}
The 40Ar/39Ar radioisotopic dating technique is one of the most precise and versatile methods available for dating events in Earth's history, but the accuracy of this method is limited by the accuracy with which the ages of neutron-fluence monitors (dating standards) are known. Calibrating the ages of standards by conventional means has proved difficult and contentious. The emerging astronomically calibrated geomagnetic polarity time scale (APTS) offers a means to calibrate the ages of 40Ar… 

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  • D. Kent
  • Geography, Environmental Science
    Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences
  • 1999
Climate cyclicity and magnetic polarity stratigraphy are being successfully combined as a powerful geochronometer in the astronomical polarity time-scale (APTS) and there has been renewed speculation about an obliquity-modulated precessional geodynamo based on periodicities in relative palaeointensity data from Ocean Drilling Program sediment cores.
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