Enhanced resolution of geological structures from magnetic data: An example from the Abitibi Greenstone Belt of Northern Ontario

Structural information about that portion of the economically important Destor-Porcupine Deformation Zone and its associated faults, which lie buried under many metres of Clay Belt sediments in the region north of Matheson, Ontario, must rely principally on interpretation of geophysical data. In this area, the Archean greenstones of the Abitibi are crosscut by at least three generations of strongly magnetic diabase dykes. The predominant dyke …