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6.0 Deposits related to felsic to intermediate extrusive rocks	Download
6.0 Deposits related to felsic to intermediate extrusive rocks ... deposits of mercury and possibly precious and base metals (section 6.1) and volcanogenic massive sulfide ...
TAG mercury tract occurrences deposits permissive cinnabar wt carbonate mineral occurrences cretaceous mineralized hg dickite quartz mineral volcanic afghanistan porphyry geochemical zones

4.0 Deposits related to felsic phanerocrystalline intrusive rocks	Download
Deposits and occurrences related to felsic phanerocrystalline intrusive rocks in Afghanistan are a variety ... bearing prospects and occurrences that are associated with Upper Cretaceous to Paleocene felsic intrusive ...

SOLTORO COMPLETES DRILL PROGRAM ON BACANORA GOLD PROJECT	Download	View
Results to date have not served to identify the source of the placer deposits that occur. downstream from the property. It is likely that there still remains a larger felsic body hosting. gold veins and/or a sediment hosted source related to the extensive silica flooding intersected in ...

The La Cabeza Gold–Silver Deposit: A Low-Sulphidation ...	Download	View
rhyolitic ignimbrites locally intruded by fine grained to medium grained felsic porphyries, all belonging to the. Permo-Triassic Choiyoi Group. Gold mineralization occurs as free gold and electrum in iron oxides, silica and ... style deposits with all of them related to porphyry and. felsic dyke ...
TAG deposit silica quartz veins ignimbrites gold mineralization pyrite breccia epithermal volcanics cuello mandíbula magmatic rock la luna bloque

in north Queensland	Download	View
considered conducive for the granite-related copper–gold class of deposits (such as ... Gold deposits related to reduced. granitic intrusions. Society of Economic. Geologists, ...

Intrusion-Related Gold Systems in the New England Fold Belt ...	Download	View
geologic models for Cu-Au porphyry deposits, although some overlap is apparent with. orogenic gold deposits. Intrusion-related gold systems have been documented in relatively few districts ... magmatic hydrothermal system related to these intrusives. The Phoenix intrusive centre is the most ...

ERTH3502 Vein-style precious metal deposits Practical 4 1	Download	View
highly soluble in low salinity fluids as sulfur complexes such that gold solubility is related to the ... of gold in the quartz reefs. is related to multiple episodes of veining parallel to the shear walls. ...
TAG vein alteration precious metal minerals metal deposits sulfide quartz reefs lode assemblages argillic textures ore minerals cracow op3

ERTH3502 Vein-style precious metal deposits Practical 6 1	Download	View
Mesothermal gold deposits are commonly hosted in metamorphosed mafic volcanics (greenstone ... soluble in low salinity fluids as sulfur complexes such that gold solubility is related to the total ...

QUASAR GOLD DEPOSIT, MT MAGNET, WESTERN AUSTRALIA	Download	View
chlorite-sericite schists at the contact with a felsic porphyry stock. ... is restricted to the felsic porphyry, occurring marginal to the contact. ...

deposit style depends on depth high level porphyrires versus ...	Download	View
Although still regarded as controversial, Intrusion Related Gold Deposits (IRGD) ... Chemical matching of intrusives related to gold mineralisation in ...
TAG granite red dome fractionated fluids strongly granite rocks disseminated

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