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Thursday’s Gossan – Our Early Exploration
Structural setting
NS-oriented arc parallel structures
NW-oriented structures
Cambrian NNW-oriented
transpression
Sinistral strike-slip on NS arc
parallel structures
Left-lateral steps on NW-oriented
structures creates a series of
pull-apart basins
Makes space for porphyry
Shape of the chalcocite intrusions and provides a
blanket –
Developed on dilatant preferred NW orientation for
structures on the NE and E
margin of a pull-apart basin dilatant growth structures
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