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Astrochronology

Astrochronology is the dating of sedimentary units by calibration with astronomically tuned timescales, such as Milankovic cycles,[1][2] or even sunspot cycles. When used in concert with radiometric dating, it allows the resolution of timescales to a high degree of accuracy. If orbital precession cycles are identified, the dating error can be as low as 21,000 years.

References edit

  1. ^ W. Krijgsman; A. R. Fortuinb; F. J. Hilgen; F. J. Sierrod (2001). "Astrochronology for the Messinian Sorbas basin (SE Spain) and orbital (precessional) forcing for evaporite cyclicity". Sedimentary Geology. 140 (1–2): 43–60. Bibcode:2001SedG..140...43K. doi:10.1016/S0037-0738(00)00171-8. hdl:1874/1632.
  2. ^ Meyers, S.R. (2008). "Resolving Milankovitchian controversies: The Triassic Latemar Limestone and the Eocene Green River Formation". Geology. 36 (4): 319–322. Bibcode:2008Geo....36..319M. doi:10.1130/G24423A.1. S2CID 49582867.


astrochronology, dating, sedimentary, units, calibration, with, astronomically, tuned, timescales, such, milankovic, cycles, even, sunspot, cycles, when, used, concert, with, radiometric, dating, allows, resolution, timescales, high, degree, accuracy, orbital,. Astrochronology is the dating of sedimentary units by calibration with astronomically tuned timescales such as Milankovic cycles 1 2 or even sunspot cycles When used in concert with radiometric dating it allows the resolution of timescales to a high degree of accuracy If orbital precession cycles are identified the dating error can be as low as 21 000 years References edit W Krijgsman A R Fortuinb F J Hilgen F J Sierrod 2001 Astrochronology for the Messinian Sorbas basin SE Spain and orbital precessional forcing for evaporite cyclicity Sedimentary Geology 140 1 2 43 60 Bibcode 2001SedG 140 43K doi 10 1016 S0037 0738 00 00171 8 hdl 1874 1632 Meyers S R 2008 Resolving Milankovitchian controversies The Triassic Latemar Limestone and the Eocene Green River Formation Geology 36 4 319 322 Bibcode 2008Geo 36 319M doi 10 1130 G24423A 1 S2CID 49582867 nbsp This geochronology article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Astrochronology amp oldid 1106093126, wikipedia, wiki, book, books, library,

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