Hi Nick -

I agree completely with the need for a thorough review. We've seen proposed impact structures fall through over the last several years. That said...

I think that you're reading a more complete report of this than I did. My guess is that the magnetic samples that they are describing are spherules of impact condensate, and that may explain their use of the term Leisegang -(I myself don't have a clue as to the meaning of this German word, in particular since my stroke.) Could it describe layering seen in spherules of impact condensate? Certainly in a airblast type of impact, spherules of this type are known to have been produced (Tunguska).

How do we know that there was an airblast? From the excavation reports. No other physical phynomenon could account for the heat dump and the human physical remains which were found. These excavations were carried on more than two decades before C14 dating became available.

Is this a crater, and one related to the airblast? Its not certain yet.

Harrapan culture has high national signifigence for the people of India, and so if this impact is confirmed it will have a strong effect on the national psyche. Further, if the impact is confirmed, it will prove a useful tool in placing India's "traditions" accurately in time.

Given the cancellation by the government of India many years ago of much impact research in order to free up funds for weapons work, I have been really delighted to see funding restored and work carried forward. This teams' geological field work follows on the earlier resumption of the publication of translations of ancient Indian astronomical works.