Physical Dating and Indian Archaeology

INTRODUCTION Today its possible to date a vanety of events and phenomena not only pertaining to human history but even to the history of our planet earth and the universe Physics has provided us a large number of dating techniques which make it possible As a result, we know now that the universe is not

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अग्रवाल रेडियोकार्बन तिथि-निर्धारण समझाते हैं — 5730 वर्ष का अर्ध-आयु काल, वृक्ष-वलयों से अंशशोधन, त्रुटि-गणना — और बताते हैं कि इन तिथियों ने भारतीय पुरातत्त्व में क्या स्थिर किया: हड़प्पा, ताम्रपाषाण, महापाषाण तथा मृद्भांड-क्रम, और ज़ावर में लगभग 400 ई.पू. से जस्ते का प्रगलन, जो विश्व में प्राचीनतम है। Agrawal explains radiocarbon dating - the 5,730-year half-life, calibration against tree-rings, sigma errors - then reviews what the TIFR and Physical Research Laboratory dates have settled for Indian archaeology: Harappan, Chalcolithic, Megalithic, PGW and NBPW sequences, and zinc smelting at Zawar from c. 400 BC, the world's earliest.

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