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Thousands of images, including the so-called "stencils", which were created by spreading fingers apart and blowing paint over the hands and fingers and onto the rock surface, caused a direct association with the Paleolithic cave paintings of Western Europe.Analysis of calcite layers covering the rock paintings revealed their “advanced” age of 17,000 to 40,000 years, and thus confirmed that the cave paintings on Sulawesi are indeed the oldest of all the known ones along with the images on the walls of the Spanish cave El Castillo According to Science magazine, the greatest scientific breakthroughs of 2014 include research results on the dating of cave paintings discovered in karst caves on Sulawesi (Indonesia), the 11th largest island in the world.But radiodating cannot proceed without some primary assumptions: the starting conditions of a given sample (e.g., how much of each isotope was present in the beginning), a steady rate of decay of certain radioactive isotopes of elements called radioisotopes, and a lack of tampering with the system (e.g., elements added or subtracted since the radioisotope "clock" first began counting time).Then, the current amount of radioisotope is compared to the amount of stable element into which it is slowly changing. However, evidence has mounted that radioisotopes underwent a period of radical acceleration of decay in the past.This evidence has indicated that radioisotopes have not decayed at a constant rate, and therefore the radiodating "clocks" in general are all broken.Advances in direct radiocarbon dating of Neanderthal and anatomically modern human (AMH) fossils and the development of archaeostratigraphic chronologies now allow refined regional models for Neanderthal–AMH coexistence.
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