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Two distinct sediment layers have formed in the lake every summer and winter over tens of thousands of years.The researchers collected roughly 70-metre core samples from the lake and painstakingly counted the layers to come up with a direct record stretching back 52,000 years. Climate records from a Japanese lake are set to improve the accuracy of the dating technique, which could help to shed light on archaeological mysteries such as why Neanderthals became extinct.Carbon dating is used to work out the age of organic material — in effect, any living thing.
Gary Glitter shot to fame in the 1970s as a glam rock star, chalking up several hits including 'I'm the Leader of the Gang (I Am)' and the much-played 1984 Christmas song 'Another Rock N' Roll Christmas'.Marine records, such as corals, have been used to push farther back in time, but these are less robust because levels of carbon-14 in the atmosphere and the ocean are not identical and tend shift with changes in ocean circulation.Bronk Ramsey’s team aimed to fill this gap by using sediment from bed of Lake Suigetsu, west of Tokyo. Santa Barbara Matchmakings Lisa Darsonval can help.
The go-to local matchmaker hosts regular Lock and Key parties that offer a space for matching that is as straightforward as it is creative.The technique hinges on carbon-14, a radioactive isotope of the element that, unlike other more stable forms of carbon, decays away at a steady rate.