Polymetallic Cu-Zn-Ag-Pb, Sn-W-Mo and Cu-Au-Bi mineralisation associated with I- and A-type granites in the Chillagoe region, north Queensland, Australia
Lehrmann, Berit, Oliver, Nicholas H.S., Rubenach, Michael J., and Georgees, Charlie (2009) Polymetallic Cu-Zn-Ag-Pb, Sn-W-Mo and Cu-Au-Bi mineralisation associated with I- and A-type granites in the Chillagoe region, north Queensland, Australia. Proceedings of the 10th Biennial Meeting of the the SGA 2009. 10th Biennial Meeting of the SGA 2009 , 17-20 August 2009, Townsville, QLD, Australia , pp. 236-238.
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Polymetallic mineralisation of at least three major styles (Cu-Zn-Ag-Pb, Sn-W-Mo, and Cu-Au-Bi) occurs in different types of host rocks (skarns, breccias, porphyries) in the Chillagoe region of North Queensland, Australia. Relating mineralisation to the nearest plutonic rocks can give incorrect results, as a chain of overprinting events is responsible for the polymetallic mineralisation in the Chillagoe district. Of particular interest is that the spatially related granites of the Tate Batholith are mostly I-types (one Atype), but the metallogenic association includes elements normally associated with S-type granites (especially type II). This research is testing the potential genetic links between intrusions and mineralisation. It is possible that the Sn-W-Mo associations (and perhaps others) are related to metal contributions from the country rocks, rather than fluids released from intrusions. Alternately, if all these metals are derived from the granitoids, then a revision of the metallogenic connections between magma type and mineralisation is required.
|Item Type:||Conference Item (Refereed Research Paper - E1)|
Conference theme "Smart Science for Exploration and Mining"
|Keywords:||polymetallic mineralisation; skarns; I- and Atype granites; North Queensland (Australia)|
|FoR Codes:||04 EARTH SCIENCES > 0403 Geology > 040307 Ore Deposit Petrology @ 100%|
|SEO Codes:||84 MINERAL RESOURCES (excl. Energy Resources) > 8401 Mineral Exploration > 840102 Copper Ore Exploration @ 100%|
|Deposited On:||10 Sep 2010 11:02|
|Last Modified:||29 Jul 2013 01:01|
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