Date: 6 months ago   Category: Studies

Scientists have found out when there was "A great flood" on the island of Crete - RIA Novosti, 8/15/2018


MOSCOW, 15 Aug – RIA Novosti. Annual growth rings of ancient trees have helped archeologists to specify time of explosion of a supervolcano on the island Santorini which has ruined a mysterious krito-Minoan civilization. Their conclusions are presented in the Science Advances.© magazine RIA Novosti / Alexey Bogdanovsky Geologists have found out how explosion of a supervolcano has caused "a great flood" in Crete "Archeologists and geologists argue long ago on when there was this event – written certificates, artifacts and other cultural monuments indicate one date, and the radio-carbon analysis – for other time. We managed to pull together these estimates" — Charlotte Pearson from the university of Arizona at the Speed (USA) tells. Before eruption of a supervolcano the modern archipelago Santorini represented the uniform island. At the end of the 17th century B.C. catastrophic eruption has destroyed the middle of the island and left dredging of 133 cubic kilometers which was almost instantly absorbed by the sea on his place. Destruction of the island has caused the tsunami which has flooded the next Crete and also "bombing" of other surrounding islands with fragments and volcanic ash. They have struck mortal blow to a krito-Minoan civilization and as some historians consider, have generated a legend of Atlantis. Consequences of this cataclysm were also felt in Ancient Egypt and in a set of other great powers of the end of a bronze age. Today, as Pearson notes, nobody doubts that this eruption has really happened at the time of antiquity, however representatives of different disciplines fiercely argue on when it happened. © RIA Novosti / Mikhail Tsyganov the Branch of an olive has helped to clear dating of ancient eruption vulkanadet that the Egyptian chronicles and also various artifacts found in Greece and Italy indicate that this cataclysm has taken place at the beginning of the 16th century, in 1570 or even later. On the other hand, traces of volcanic ash in ices of Greenland and also radio-carbon age of artifacts from the island say that Santorin has exploded much earlier, in 1628 B.C. Pearson and her colleagues have tried to resolve these contradictions, having united two methods of "physical" archeology – the radio-carbon analysis and calculation of number of annual growth rings in trunks of trees. In the past as Pearson notes, scientists could only calculate approximately age of these layers as rather large samples of a tree comprising at once several tens of rings for this purpose were required. It deprived the similar idea of sense and didn't allow to calculate precisely that time when the volcanic eruption has caused a temporary cold snap on Earth. To team Pearson was succeeded to realize this idea thanks to new mass spectrometers and unique trees – awned pines from California and to oaks from Ireland – lived nearly five and two thousand years. © Photo: Richard Staff the Lake in Japan has helped scientists to improve radio-carbon датировкуПолучив samples of trunks of these "aksakals" of flora, scientists have calculated shares of carbon-14 about three hundred annual growth rings

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