Interpretation of second derivative aeromagnetic maps at the Silver Queen and Equity Silver mines, Houston, B.C.

CIM Bulletin, Vol. 83, No. 934, 1990

B.N. Church and A.R. Pettipas

The second vertical derivative method of processing aero-magnetic data from low level helicopter surveys yields results correctable with the known geology and may be utilized to indicate possible targets for future exploration in the Silver Queen and Equity Silver mines areas, near Houston in central British Columbia. The principal zones of alteration associated with mineralization, known from detailed mapping, are further delineated and extended in a way not possible by a cursory examination of the original magnetic data.
Mots Clés: Aeromagnetic data, Second derivative, Mine geology, Structure, Alteration, New targets, Exploration, Map interpretation