What is thermoluminescence dating used for
Thermo luminescence has been used here to date to 92,000 years old this skeleton of a "Homo Sapiens" woman and her child, found in the Qafzeh cave in Israel.
This dating has shown that Homo Sapiens could descend from Neanderthals.
The archaeologist Colin Renfrew (1973) called it the development of this dating method 'the radiocarbon revolution' in describing its great impact upon the human sciences.
The radiocarbon method was developed by a team of scientists led by the late Professor Willard F.
Libby of the University of Chicago after the end of World War 2.
Libby later received the Nobel Prize in Chemistry in 1960 for the radiocarbon discovery.
Homo Sapiens Thermo luminescence dating is a technique that has several applications in Prehistory.
Dating is made from minerals found on archaeological sites, which were heated at the time such as flints or potteries for more recent remains.
Carbon follows this pathway through the food chain on Earth so that all living things are using carbon, building their bodies until they die.
All plants and animals on Earth are made principally of carbon.
During the period of a plant's life, the plant is taking in carbon dioxide through photosynthesis, which is how the plant makes energy and grows.
The measure of the stored energy accumulated, which is difficult and requires calibration, allows to evaluate the age of the object being examined. One application is the dating of heated flints, which are abundant in prehistoric sites.
It was thus possible to prove that early modern humans (the “proto Cro-Magnon ") had lived on a site in the Middle East nearly 90,000 years ago.