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Nach dem gleichen Wirkungsprinzip wie die Thermolumineszenzdatierung arbeiten weitere Verfahren, bei denen die Abregung aus den metastabilen Zuständen nicht durch Erhitzung des Materials erfolgte, sondern durch Energiezufuhr in Form von Photonen.

The basic principles are explained in terms of thermoluminescence dating of pottery, with particular regard for the interests of archaeologists.

Das Verfahren der OSL Datierung ist, obwohl mit der TL-Datierung eng verwandt, daher von dieser abzugrenzen (s. Anschließend setzt die skizzierte „Aufladung“ erneut ein.

Je älter die Probe ist, desto stärker ist das bei einer erneuten Erhitzung beobachtbare Lumineszenzsignal.

thermoluminescence dating-20thermoluminescence dating-71thermoluminescence dating-43

However, substantial comparative sequences of radiocarbon determinations and dates produced by alternative radiometric techniques for the crucial period between 20,000 and 40,000 radiocarbon years are not yet available from anywhere in the world.

Radiocarbon analysis of the early archaeological site of Nauwalabila I, Arnhem Land, Australia: implications for sample suitability and stratigraphicintegrity Auteur(s) / Author(s) BIRD M. has been recently been significantly strengthened by their announcement of a similar age for the basal deposits of a second Arnhem Land site, Nauwalabila I, 65-70 km south of Malakunanja II. At Nauwalabila I a sequence of five OSL dates are also in stratigraphic order The three oldest samples are 30,000 2400 years (Ox ODK166) from 1.70-1.75 m depth below surface; 53,400 5400 years (Ox ODK168) from 2.28-2.40 m; and 60,300 6,700 years (Ox ODK169) from 2.85-3.01 m. (1991) propose a maximum underestimation of 3000 years between 18,000 years ago and 40,000 years ago and a negligible difference between 45,000 years ago and 50,000 years ago. (1993) indicate that a determination of 18,000 radiocarbon years represents almost 22,000 calendar years.

A very old, but not impossibly old, date for Aborigines in Northern Australia. I’ve had a look around and the thermoluminesence dates from the site seem to agree with the 50,000 date, as do dates from Malakunanja II The case of Roberts et al.

Durch die Messung wird die TL-Uhr jedoch erneut zurückgesetzt.

Folgendes muss in die Auswertung einfließen: Die Genauigkeit der Methode ist begrenzt. Ihre Reichweite beträgt mehr als 50.000 Jahre, abhängig vom verwendeten Dosimeter und der Dosisleistung.




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