Introduction and Background

The Pandanus Marble project comprises of EPM 14193 and ML 10290. Situated approximately 300 klms West of Townsville and 55 klms South West of the small rural town of Greenvale in North Queensland, Australia. The tenement lies within Pandanus Station with the Shield Creek Road passing North – South through the property with Queensland Granite and Marble Pty Ltd maintaining this road. White marble is currently mined within the ML and exported to Italy where it is processed, cut and polished and on sold primarily to the Chinese market.  Detailed geological mapping and trial sampling indicates that there are other marble deposits within the EPM that have potential to extend the life and size of this project for 50 plus years. There is also potential for epithermal gold deposits within the EPM.

Geological Setting

The geology (Figure 2) within the project area is dominated by the Chinaman Creek Limestone unit which hosts the white marble and other Dimension Stone.
Chinaman Creek unit is described as “Bioclastic calcarenite, calcirudite and calcilutite commonly richly fossiliferous), mudstone, impure sandy limestone, mudstone (commonly calcareous and fossiliferous), lithofeldspathic, subfeldspathic and quartzose sandstone, and lymictic conglomerate”.

Various carboniferous rhyolites have intruded the limestone unit and this has resulted in localised metamorphism giving rise to various types of dimension stone.
Other geological units shown in Figure 2 include:

Shield Creek Formation – feldspathic to quartzose sandstone and minor conglomerate, siltstone and mudstone; local bioclastic calcarenite (richly fossiliferous).

Tank Creek Sandstone -open shallow-water carbonate shelf, lagoonal and barrier shoal deposits, mixed or interbedded with muddy and locally sandy siliciclastic deposits.

Bulgeri Formation – sandstones and conglomerates derived from plutonic, metamorphic and sedimentary rock sources, typically greyish-red siltstone and very fine sandstone.

Quinton Formation – Lithofeldspathic arenite, polymictic conglomerate and mudstone; minor volcaniclastic arenite and siltstone; local limestone (mainly calcilutite and fine grained calcarenite).

Exploration Rationale

QLDGM has embarked on a detailed geological mapping program to identify locations that have the potential to yield high quality marble and other dimension stone. A map of the surface geology in the southern part of the tenement is shown in Figure 3. Small areas of outcropping rhyolite have been observed in the south west of the ML, shown as red in Figure 3. This suggests that the intrusive rhyolite of the Kennedy Province extends to the east below the Chinaman Creek limestone and that it has provided the heat source to facilitate the formation of marble and calc silicate minerals such as wollastonite and garnet. NQ considers that the areas to the north and south of the ML along the Chinaman Creek limestone have the potential to yield further deposits of quality marble and other Dimension Stone.