Projects

Introduction Flinders Diamonds Limited (Flinders) was incorporated on 11 January 2000. Its objective is to locate and develop a commercial diamond mine by continuing exploration of the Springfield and other exploration projects. The additional diamond projects include three more in South Australia, one in the Northern Territory and one in Western Australia. The purpose of the following sections is to provide a synthesis of the geology and diamond exploration potential of all six projects.

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A statistical summary of tenements and commitments for these exploration projects is given in the Table below:

Springfield Project

Flinders acquired the mining rights to the Springfield Project from Tiger International Resources Inc (Tiger) for vendor shares. The project lies in a highly prospective geological setting on the continent-wide G2 gravity lineament (Figure 1).

Various previous diamond exploration programs located 90 indicator mineral anomalies either in or very near the project area (Figure 3). There are also eight prospects containing a total of 370 diamonds, which lie along the G2 gravity lineament. The Eurelia Prospect contains the only diamondiferous kimberlites yet found in South Australia, and is located in the south east corner of the project area. There had been only one phase of serious previous diamond exploration on the Springfield Project area by Freeport and partners between 1979 and 1991.

Tiger's 1998 and 1999 program involved reprocessing airborne magnetic data, bulk sampling and undercover drilling. As the program developed, other activities included regolith mapping, trenching, new drainage sampling (Figure 5), indicator mineral geochemistry and prospecting of on-source indicator mineral anomalies. This work led to a new level of understanding of the diamond potential of the area, and opened up a large number of new exploration possibilities. These are expected to lead to the discovery of a new province of diamondiferous kimberlites.

Reinterpretation of data from the Springfield Basin has confirmed previous ideas that there could be a kimberlite or kimberlites under the Springfield Basin.

More details of Springfield Project

Adelaide Hills Project

Within the Adelaide Hills Project, the area surrounding the discovery site of the Echunga diamonds has been secured (Figure 7). Flinders plans to carry out a new drainage indicator survey, which is expected to lead to new ideas on the primary source of the Echunga diamonds.

More details of Adelaide Hills Project

G2 Project

Flinders' G2 project is located south of the Peake and Denison Ranges (Figure 8), where several diamonds and numerous kimberlitic indicators have been found. Flinders has acquired a large area, which is in the old up-stream direction of the diamonds. It is covered by shallow Mesozoic sediments that would mask any kimberlites present. Flinders' plan is to carry out an undercover drilling program that is expected to identify trails of indicator minerals, which can then be traced back to source.

More details of G2 Project

Strangways Project

The Strangways Project is located about 100 kilometres northeast of Alice Springs at the intersection of the G1, G2 and G3 gravity corridors (Figure 10). There is strong evidence of local deep-seated intrusive activity in and near the project area. There are also eleven positive sites from previous indicator mineral sampling and a microdiamond location to follow up. A regolith mapping program is planned, to be followed by ground magnetic traverses and drill testing anomalies. Further drainage sampling in anomalous catchments will also be carried out.

More details of Strangways Project

Skeleton Flat Project

The Skeleton Flat Project is located in the highly prospective Kimberley region of Western Australia. Historical exploration has located nine kimberlite bodies and at least two macrodiamonds. Recent work has also located a 37 ha photo-feature, which is interpreted to be the source of the Skeleton Flat diamonds. Once the licence is granted a program of drilling is expected to locate a new diamondiferous kimberlite for evaluation.

More details of Skeleton Flat Project

Leigh Creek Project

The Leigh Project is located in the Flinders Ranges approximately 200 km north of the Springfield Project area. The concept is similar to that for the Springfield and Boolcunda Basins, namely that primary source kimberlite may lie beneath the sedimentary rock filling the basins. Positive results were obtained from previous exploration involving stream sediment sampling in the Tom Hill area. The exploration program for the project consists of preliminary research and a drilling program which will include testing a target under the various Leigh Creek basins.

More details of Leigh Creek Project

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