Sea-dwelling fossil shells reveal 60,000-year-old link relating to climate change

Link dating back to 60,000 years between sea surface temperature of Northeast Indian Ocean (NEIO) and North Atlantic climate oscillations, probably through ocean atmospheric connection, was found by researchers. In a study on oxygen isotopes deposited in fossil shells in the ocean sediment through AMS radiocarbon dating, it was also found that the Indian monsoon was much more intense 6,000-8,000 years ago than the present period. In the study carried out by scientists from CSIR-National Geophysical Research Institute here, researchers from the School of Geography Science, Nanjing Normal University and the School of Earth Science and Engineering, Nanjing University, Nanjing, China collaborated in dating the fossils.