Here we added a paper which was published during 2003 under the title: "Numerical Modelling and Petrophysical Constraints on the Magnetic Signature of Impact Structures", by Drs. H. A. Ugalde and B. Milkereit from the University of Toronto, and Dr. N. Artemieva from the Institute for Dynamics of Geosphere, Moscow.
Our sincere thanks to my colleague and friend, Mr. Juan C. Echaurren (Scientist, Codelco Chile Chuquicamata-North Division), who provided me with this work.
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