Figure 1: Location of tenement E 70/4969 and nearby infrastructure; the Saddlers and Hulls prospect wireframes (GM Minerals Consultants, 2017).
The Tambellup Kaolin Project (Figure 1) is located 5 to 10 km west of the township of Tambellup, where the railway corridor runs north-south through the centre of the town. The project is approximately 280 km south-southeast of Perth via The Great Southern Highway. The Tambellup West Road bisects the project from Tambellup and links to the Albany Highway in the west. Two kaolin prospects have previously been identified by drilling within the tenement (Figure 1), Saddlers in the northwest of the project area, and Hulls in the east.
Figure 2: Location of tenement E 70/4969 and Kaolin prospects overlying surface geology of the 250K Mount Barker-Albany geological map sheet.
The Kaolin prospects in the Tambellup area have formed due to in situ weathering of biotite adamellite, which forms the predominant basement rock type in the area (Figure 2). The degree of weathering and thickness of the weathering profile is related to structural features in the underlying basement geology, such as jointing and fracturing related to deformation of the rock mass.
Regionally, the distribution of outcropping basement geology (Figure 2) appears to be controlled by northwest-southeast and northeast-southwest basement structures. These trends are evident in regional magnetic data where magnetic highs delineate basement ridges and correspond with outcropping basement geology, whereas the identified kaolin prospects correlate with magnetic lows that likely reflect a thicker weathering profile.
Exploration Potential and Planned Work