Dept. of Earth Sciences, Government of India (March, 2007) www.stonepages.com/news/archives/002364.html
Scientific evidences point to human activity in ancient times on both sides of Ram Sethu (the narrow sea between India and Sri Lanka) as found by Dept. of Earth Sciences and ocean technologists of Bharatam. The Geological logging of the bore holes drilled in Ram Sethu reveals very interesting details. In almost of all the boreholes between 4.5 and 7.5m the borehole intersected hard formations, which have been found to be calcareous sand stones and corals. The Corals normally grow atop compact to hard formations for the purpose of stability, and as the sea level rises, the Coral colony grows up vertically to maintain water depth of 1 to 2 m, which is essential for their survival. In the case of Ram Sethu area, we observe that the Coral formations hardly occur 1 to 2.5m in length and resting on loose marine sands. Most of these coral rock pieces are seem to be rounded pebbles of corals. These things appear to point these coral rock pieces and pebbles have been transported and placed in these areas. Since the calcareous sand stones and Corals are less dense than normal hard rock and quite compact, probably these were used by the ancients to form a connecting link to Sri Lanka, on the higher elevations of the Ram Sethu ridge and this is analogous to modern day causeway. ..indicates human habitation extending to late Pleistocene (11,000 BCE) based on bone of human.
