![]() ![]() “We find clear evidence that this interval was not a short-term crisis but a progressive transformation of the environmental conditions in which Indus people lived,” co-author Cameron Petrie told the University of Cambridge in an April 24 news release.ĭuring these dry periods, both summer and winter rainfall was reduced, the study said. Rather than a “single megadrought that lasted about 100–200 years,” researchers identified “three major dry periods” between 4,200 and 3,900 years ago with each period “lasting 25–90 years.” ![]() Their results offered a slightly different and much more detailed picture of ancient life than that of previous experts. The cave formation was in a weather-susceptible habitat - yet protected enough that it formed during this ancient period.īased on layered mineral deposits in the stalagmite, researchers reconstructed historic rainfall patterns beginning 4,200 years ago, the study said. Near the far end of the shallow cave, researchers seeking to solve the mystery found a stalagmite with a telling combination of features. Answers to these elusive questions were hiding in the Dharamjali Cave in the Himalayas. ![]()
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