Ram setu carbon dating

Back in October too the US agency had rebutted a story circulated by an Indian news agency based on claims made by a couple of NRI websites and Hindu news services that "space images taken by NASA" had revealed "a mysterious ancient bridge in the Palk Strait".

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Its images had never resulted in any scientific discovery in the area. The report on the Internet that had appeared five years ago had also claimed "archaeological studies reveal that the first signs of human inhabitants in Sri Lanka date back to The controversy over the Sethusamudram canal project had got a new lease of life on Wednesday when Vishwa Hindu Parishad activists blocked roads all over India to protest the project that, they say, will damage Ram Setu.

The same day, the government submitted an affidavit in the Supreme Court in which the Archaeological Survey of India ASI said there were no historical records to prove the existence of a manmade Ram Setu. The Ramayana says Lord Ram's army had built a bridge across the sea to Lanka now Sri Lanka on their way to battle the demon king Ravana.

Human evolution studies have unequivocally established that modern humans Homo sapiens sapiens came into existence only about , years ago. Further, humans arrived in the Indian subcontinent not before , years ago. Clearly, the age of Treta Yuga 1.

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Interestingly, soon after the release of the NASA images and when the related news items began appearing, it was Uma Bharati, the then Union Minister for Coal and Mines, who initiated a study by the GSI to establish the palaeogeography of the sethu terrain. Samples from different locations off Mandapam located on the mainland coast across the Rameswaram island were taken for TL dating. Age data of corals indicate that the Rameswaram island has evolved since , years ago.

A combination of various natural coastal processes such as sea level positions in the historical past, wind-borne activity, new tectonic movements, wave action, etc. Palaeogeographic studies suggest that the sea level in the region has oscillated significantly over historical time scales exposing the seabed between India and Sri Lanka periodically.

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Around 6,, years ago the sea level was 17 m below the present level, resulting in partial exposure of the seabed. About 10, years ago, sea level may have been even 60 m below. Radiocarbon dating suggests that during the last glacial maxima about 20, years ago when sea level is at its minimum, the level may have been as low as m.

Dating of Ramayana - What makes claim of 5114 BCE false!

The domain between Rameswaram and Talaimannar may have thus been exposed sometime between 18, and 7, years ago, the ASI has concluded. Since then sea level has been rising gradually with minor periodic fluctuations. Analysis of samples from drilling of boreholes between Dhanushkodi and the third island of Ram Sethu suggests that there were three sedimentation cycles dominated by clay, limestone and sandstone.

The growth of the Dhanushkodi sand spit narrow coastal formation itself is a feature of coastal processes and shoreline emergence and its orientation seems to be along the dissipation of wave energy patterns of the Palk Bay and the Gulf of Mannar. TL dating suggests that the sand dunes of Dhanushkodi to Ram Sethu began to be deposited only about years ago.

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The recognition of features, say the authors of the investigation, was based on experience with the Indian coral reefs and well-established methodology. The linearity of the sethu was interpreted to be due to the old shoreline — implying that the two landmasses of India and Sri Lanka were once connected — from where coral reefs evolved. Continuing investigations on the reef system, which they have identified as Ribbon reef Type, have shown that the orientation and size of the sand cays have changed during and again during , thus indicating their dynamic nature.

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Ram Mohan of the Centre of Natural Hazards and Disaster Studies of the University of Madras, island chains, including seamounts, are frequent in the ocean and could be the result of various geological processes. The chains in the Philippines and Japan have, for example, been formed because of subduction related volcanism.

In the Hawaiian islands, it is owing to the movement of lithospheric mantle over hot spots. It can also be owing to the opening of the sea during seafloor spreading along mid-oceanic ridges, as it is in Iceland, or along transform faults, as in St.

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Island chains in the Caribbean and on the southern tip of the South American continent consist of sediments of marine origin formed by coastal processes, which cover the basaltic stratum and serve as substrate for coral reefs, which are exposed above sea level. This formation may have been initiated when the sea level was m below the present level, around 18, years ago, and was building up when the sea level continued to rise. Ramachandran, Vice-Chancellor of the University of Madras.