chip in widget not updating - Dating of speleothems

Since World War II, there has been tremendous success in the development of new methods for dating artifacts; the so-called `radiocarbon revolution' was only the first such discovery.

The increasing accuracy of the various new techniques has brought about major changes in archaeological research strategies.

The main research by TAAL into speleomagentism has been the palaeomagnetic analysis and dating of cave sediments and speleothems from South African and Australian fossil and archaeological bearing palaeokarst and the direct dating of geomagnetic field reversals, events and excursions in speleothems using uranium-lead dating.

Palaeokarst preserved in the Haasgat (Rabbit Hole) lime mine in South Africa.

Palaeomagnetic analysis indicates that these deposits are older than 1.95 Ma based on the identification of the end of the Olduvai Sub Chron at the top of the cave sequence.

Asmerom, Y., Polyak, V., Burns, S., and Rassmussen, J., 2007, Solar forcing of Holocene climate: new insights from a speleothem record, southwestern United States: Geology, v.

Ayalon, A., Bar-Mathews, M., and Kaufman, A., 2002, Climatic conditions during marine oxygen isotope stage 6 in the eastern Mediterranean region from isotopic composition of speleothems of Soreq Cave, Israel: Geology, v.

Last modified 19-Nov-2014 10:11