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Monday, 2 August 2010

Question About Documented "Radial Fractures" and Ni Anomalies at Impact Craters

Question About Documented "Radial Fractures" and Ni Anomalies at Impact Craters

Monday, August 2, 2010 2:01 AM

Dear Friends,

I have seen the presence of "radial fractures" and "Ni anomalies" in local sediments used as evidence for the extraterrestrial impact origin of landforms and features.
From what I have found so far, neither of these criteria are recognized as being either traditional, valid, or convincing evidence for arguing that a feature or structure is of impact origin.

Does anyone know of any of the impact structures recognized by the Geological Survey of Canada's Earth Impact Database that have been documented to have "radial fracture" systems or "Ni anomalies" in local stream or other surficial sediments associated with them? Has anyone argued for either "radial fracturesof Ni anomalies in surficial sediments being valid criteria that demonstrates the extraterrestrial origin of specific landforms?

If so, any citation(s) to such research that can be sent to me offlist will be greatly appreciated.

Yours,

PAul H.

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