25-Sep-2015 00:48

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The researchers from India now say it was actually spread over a much larger part of India, alongside River Saraswati, which is believed to have disappeared some 4,000 years ago.Researchers have also proposed a new theory for the decline of the civilisation, which was earlier believed to have been caused by climate change.The new study argues that although shifting monsoon patterns played a role in the eventual decline of the civilisation, it had more to do with the change in cropping patterns and storage of grains.“Our study suggests that the climate was probably not the cause of Harappan decline,” the researchers said in a statement.“Increasing evidences suggest that these people shifted their crop patterns from the large-grained cereals like wheat and barley during the early part of intensified monsoon to drought-resistant species of small millets and rice in the later part of declining monsoon and thereby changed their subsistence strategy.” But that shift in agriculture turned out to be fatal, the researchers explained: Because these later crops generally have much lower yield, the organised large storage system of mature Harappan period was abandoned giving rise to smaller more individual household based crop processing and storage system and could act as catalyst for the de-urbanisation of the Harappan civilisation rather than an abrupt collapse.Researchers have found a reason for the puzzling survival of soft tissue and collagen in dinosaur bones - the bones are younger than anyone ever guessed.Carbon-14 (C-14) dating of multiple samples of bone from 8 dinosaurs found in Texas, Alaska, Colorado, and Montana revealed that they are only 22,000 to 39,000 years old.

To check its validity we dated archaeological pottery from two cultural levels using optically stimulated luminescence (OSL) method and thus investigated the interrelationship between the cultural levels and climate change that occurred right at the settlement, a critical gap in information that exists in our present understanding of the Harappan civilization.

Archaeological studies had earlier suggested that the civilisation was centred around Harappa and Mohenjo-Daro in Pakistan, and Lothal, Dholavira, and Kalibangan in India, Sarkar explained.

The Indus Valley civilisation may be even older than initially thought.

A group of researchers in India have used carbon dating techniques on animal remains and pottery fragments to conclude that the Indus Valley settlements could be 8,000 years old—2,500 years older than previously believed.

That could make the Indus Valley settlements, which were spread across Pakistan and northern India, even older than the Mesopotamian and Egyptian civilisations.

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millennium before present and will have major implications to the evolution of human settlements in Indian sub-continent,” Anindya Sarkar, a professor at the department of geology and geophysics at IIT-Kharagpur, said in a statement.

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