plutonic

August 19, 2019
PLATE 29 : Kidston breccia ore showing stubby, medium grained, comb textured quartz crystals lining vughs with later carbonate, pyrite and base metal sulphide filling vugh cores.

METALLOGENIC STUDY OF THE GEORGETOWN, FORSAYTH AND GILBERTON REGIONS, Part 7

August 19, 2019
PLATE 23: Sample from the Caledonia workings, Gilberton. Shows brecciated early, white, tightly packed, euhedral buck quartz (Plutonic style) cemented by clear, comb textured quartz, colloform banded and in places moss textured chalcedonic silica and siderite (Epithermal style).

METALLOGENIC STUDY OF THE GEORGETOWN, FORSAYTH AND GILBERTON REGIONS, Part 6

Report Number 114062, METALLOGENIC STUDY OF THE GEORGETOWN, FORSAYTH AND GILBERTON REGIONS, NORTH QUEENSLAND is now available for download from QDEX. The authors are Dr Gregg
August 19, 2019
PLATE 3. Polymict matrix support breccia with a complex history of formation. At least four phases of pre-breccia and post-breccia quartz veining of variable texture. Fine, dark coloured, silica – pyrite breccia cement. Specimen of ore from the Cumberland Mine, Georgetown (Sample #231594; 4.46 g/t Au, 24.3 g/t Ag).

METALLOGENIC STUDY OF THE GEORGETOWN, FORSAYTH AND GILBERTON REGIONS-Part 3

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