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In the beginning, researchers from SCHE studied the artefacts recovered from the lowest rung of the excavation site, which corresponds to the Lower Palaeolithic or the Acheulean period.
More recently, they analysed artefacts dug out from the layers on top.
To this end, he and his team excavated more than 7,000 stone tools from the sediment layer and analysed them in the lab.
“So, before burial, the sediments have zero/near zero residual luminescence,” Ashok Kumar Singhvi, a coauthor of the study, explained.The Android App 'Voter Helpline' provides you easy searching of your name in Electoral Roll, filling up online forms, knowing about Elections, and most importantly, lodging grievance.You will have access to everything about Election Commission of India.In the Middle Palaeolithic period, a new technology called Levallois became common for forging instruments.
“The technique involves the removal of small flakes or points from carefully prepared cores in a structured manner,” Pappu said.The tools bear marks of the Levallois technology that has its roots in Africa and predates the arrival of modern humans in India.