Geology of the Bamford Hill W-Mo-Bi deposit, Petford, North Queensland

Venning, Christopher D. (1981). Geology of the Bamford Hill W-Mo-Bi deposit, Petford, North Queensland Honours Thesis, School of Physical Sciences, The University of Queensland.

       
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Author Venning, Christopher D.
Thesis Title Geology of the Bamford Hill W-Mo-Bi deposit, Petford, North Queensland
School, Centre or Institute School of Physical Sciences
Institution The University of Queensland
Publication date 1981
Thesis type Honours Thesis
Supervisor A. Ewart
Total pages 116
Language eng
Subjects 040312 Structural Geology
Formatted abstract
Bamford Hill lying some 150km west of Cairns, North Queensland was at the turn of the century a prominent tungsten producer. It is geologically part of the igneous province of the Hodgkinson Basin that has suffered calc-alkaline magmatism in a tectonic arc-trench environment during Permo-Carboniferous times. The immediate vicinity of Bamford Hill reflects this calc-alkaline magnetism by the rock compositions and geochemical trends in the oxides of the major rock forming elements. The acid rock types seen in the form of stocks, ash flow tuffs and dykes, reflect to a degree a caldera type environment and from trace element data suggest a comagmatic affinity between them.

Mineralization though varied, is essentially a tungsten-molybdenum deposit in the form of wolframite and molybdenite restricted to an alteration zone along the eastern contact of the PBG-I stock. Four alteration types can be seen within the alteration zone, Feldspathization, Muscovitization, Greisenization and Chloritization, the first three being associated with late magmatic - early post magmatic solutions, while the chlorization cross cuts earlier alterations and is considered to be similar in mineral assemblage to propylitization seen in porphyry ore environments.
Keyword Geology -- Queensland -- Bamford Hill
Tungsten ores -- Queensland -- Bamford Hill

Document type: Thesis
Collection: UQ Theses (non-RHD) - UQ staff and students only
 
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Created: Wed, 01 Apr 2015, 16:26:58 EST by Nicole Rayner on behalf of Scholarly Communication and Digitisation Service