Researchers have found the evidence of a “lost” river that ran through the central Thar Desert, near Bikaner, as early as 172 thousand years ago, and may have been a life-line to human populations enabling them to inhabit the region.
Daily Current Affairs Quiz 2020
Key-Points
The findings represent the oldest directly dated phase of river activity at Nal Quarry in the central Thar Desert. The study indicates that Stone Age populations lived in a distinctly different Thar Desert landscape than we encounter today.
This evidence indicates a river flowed with phases of activity dating to approximately up to 172 thousand years ago, nearby to Bikaner, Rajasthan, which is over 200 kilometres away from the nearest modern river.
These findings predate evidence for activity in modern river courses across the Thar Desert as well as dried up course of the Ghaggar-Hakra River.
The results indicated that the strongest river activity at Village of Nal occurred at approximately 172 and 140 thousand years ago, at a time when the monsoon was much weaker than today in the region. River activity continued at the site between 95 to 78 thousand years ago.
