Gold mineralization associated with low temperature basinal brines in Connemara, western Ireland

Lusty, P.A.J.; Naden, J.; Bouch, J.E.; McKervey, J.A.; McFarlane, J.A.S.. 2007 Gold mineralization associated with low temperature basinal brines in Connemara, western Ireland. In: Andrew, C.J., (ed.) Digging deeper : proceedings of the ninth biennial Meeting of the Society for Geology Applied to Mineral Deposits, Dublin, Ireland 20th-23rd August 2007. Dublin, Ireland, Irish Association for Economic Geology, 613-616.

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Abstract/Summary

Fluids inclusion studies suggest that the gold mineralization occurring in a silica-rich fault zone in Silurian rocks at Bohaun in Connemara, western Ireland is associated with low temperature, moderate–high salinity fluids more consistent with a basinal brine than an orogenic gold lineage. This contrasts with other gold deposits in western Ireland that are typically orogenic in mineralization style. Remobilisation of pre-existing gold mineralization by low-temperature, highsalinity brines is recognised in a number of gold deposits worldwide. However, at Bohaun there is no evidence for earlier mineralization suggesting that low-temperature fluids can transport gold and potentially form gold deposits independent of other fluids.

Item Type:	Publication - Book Section
Programmes:	BGS Programmes > Economic Minerals
Additional Keywords:	gold, Connemara, Ireland, fluid inclusions
NORA Subject Terms:	Earth Sciences
Date made live:	10 Sep 2010 10:35 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/7783

Item Type:

Publication - Book Section

Programmes:

BGS Programmes > Economic Minerals

Additional Keywords:

gold, Connemara, Ireland, fluid inclusions

NORA Subject Terms:

Earth Sciences

Date made live:

10 Sep 2010 10:35 +0 (UTC)

URI:

https://nora.nerc.ac.uk/id/eprint/7783