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Context: Researchers have found the evidence of river activity in central Thar Desert, near Bikaner, as early as 172 thousand years ago.
The presence of a river running through the central Thar Desert would have offered a life-line to Paleolithic populations, and potentially an important corridor for migrations
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.
Map showing the location of Nal Quarry at the threshold of the Asian monsoon, and ~200km away from modern rivers in the Thar Desert.
Map showing the location of Nal Quarry at the threshold of the Asian monsoon, and ~200km away from modern rivers in the Thar Desert
Different phases of river activity
Luminescence dating
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