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Mamut

Sabah, Malaysia

Main commodities: Cu Au
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The Mamut porphyry copper deposit is located in northern Borneo, in the Malaysian State of Sabah.

The deposit is developed within a satellite of the larger Miocene (9 Ma) Mount Kinabalu adamellite (quartz monzonite) batholith which intrudes Palaeogene sediments, volcanics and intrusives. The district includes multiple granodiorite intrusives, collectively referred to as the Kinabalu Magmatic Zone,

The deposit contained 196 Mt @ 0.48% Cu, 0.5 g/t Au and until its closure in 1999 produced 0.580 Mt of copper metal, 44 tonnes of gold and 300 tonnes of silver.

For more detail consult the reference(s) listed below.

The most recent source geological information used to prepare this summary was dated: 1994.    
This description is a summary from published sources, the chief of which are listed below.
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  References & Additional Information
   Selected References:
Imai A  1994 - Sulfide globules associated with a felsite intrusion in the Mount Kinabalu Quartz Monzonite, Sabah, East Malaysia; Sulfide melt immiscibility in a highly silicic melt: in    Econ. Geol.   v 89 pp 181-185


Porter GeoConsultancy Pty Ltd (PorterGeo) provides access to this database at no charge.   It is largely based on scientific papers and reports in the public domain, and was current when the sources consulted were published.   While PorterGeo endeavour to ensure the information was accurate at the time of compilation and subsequent updating, PorterGeo takes no responsibility what-so-ever for inaccurate or out of date data, information or interpretations.

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