Reflections on the 230Th/U dating of dirty material

• Autorzy: Geyh M. A.
• Języki publikacji: EN

Abstrakty

EN

High correlation coefficients between the activity ratios of the uranium and thorium isotopes common for the "isochron" approach of 230Th/U dating of dirty material mask the requirement to check for closed-system conditions of uranium in addition to the detrital correction of 230Th/U ages. The difficulty to calculate standard deviations of 230Th/U dates derived by the "isochron" approach complicates the problem. The methodical reasons are discussed. Closed-system conditions are checked by the 234U/ 238U - 230Th/ 238U AR plot which can also be used to carry out least-squares fitted detrital correction of 230Th/U ages of dirty material.

Słowa kluczowe

EN

U/Th dating; isochron approach; detrital thorium; geochronology

• Wydawca: De Gruyter
• Czasopismo: Geochronometria
• Rocznik: 2001
• Tom: Vol. 20
• Strony: 9--14
• Opis fizyczny: Bibliogr. 16 poz. rys., tab., wykr.

Twórcy

autor

Geyh M. A.

• 29 308 Winsen/Aller, Germany

Bibliografia

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