Geology

The Lolworth Range and surrounding terrain is a mix of at least four different rock-types ranging from the Early Ordovician through to Permian age. The oldest known rocks are known as the Cape River Beds and consist of sandstones and quartzites that have undergone little metamorphism through to gneisses and schists. These rocks host most of the known gold deposits within the Lolworth-Pentland area. The mid-Ordovician aged Ravenswood Igneous Complex intrudes the Cape River Beds and is an ‘I’ type granitoid thought to derive from a deep magmatic source. The Ravenswood and Charters Towers goldfields are associated with this rock. Most of the northern part of the application area lies within the Lolworth Igneous Complex. This Siluro-Devonian aged Complex consist of adamellite granites and pegmatitic dykes. Previous exploration reveals Permian aged rhyolites, tuffs and breccias also occur within the application area and may be part of the Mundic Igneous Complex. The northern area of the application area is overlain by later Basaltic flows (Nulla Basalt).

Past Exploration

Research reveals little mineral exploration work has been done within the Lolworth Range. Access, company specific targeted ore-deposit styles and price of metals reflect the efforts of past exploration. The most detailed exploration work undertaken within the application area would have been under AP4855M (A.R.I Limited) during the 1987-88 period. The work this company undertook is one of the main reasons for the current application area. A.R.I undertook a major stream sediment program within the drainage of the Lolworth Range via helicopter access. This work highlighted seven gold anomalous areas worth following up. Rock chips also demonstrated the perspectivity of the region with elevated gold in association with rhyolites and breccias. Eleven watersheds showed visible gold in pan concentrates. The summary map to this program (CR18950_5) shows the extent of the Au-anomalous drainages. It is also worthy to note the Sn-W associated drainage lines located in the west of the tenement. Post-exploration shows that most of this work has not been followed up in any detail or conclusion.

LUX Exploration Pty Ltd considers the application area has high prospectivity for intrusive related minerals such as gold (Au) and Tin/Tungsten (Sn, W) from the following reasons;

  • Past exploration has identified anomalous Au and Sn/W within the drainage lines of the Lolworth Range. No intensive follow-up exploration has been undertaken since identifying these anomalies.
  • The recorded intrusive rock types of the area are complex enough to be prime foundations for the formation of intrusive-related ore deposits. These rock types have already been proven to host world-class ore deposits in the nearby area (Charters Towers, My Leyshon, Kidston etc…)
  • Increase in metal prices combined with the current situations in the rest of the World highlights the economic opportunity for the North Queensland region.