Only minimal work has been conducted on the small area comprising all of the now surrendered remaining part of EL 5366, which is centred 20 km north-northeast of Roxby Downs township. That work began with Tasman Resources' generation of a conceptual geological model intended to guide exploration for possible economic buried Mississippi Valley Type (MVT) base metal mineralisation that may have formed within the Cambrian Andamooka Limestone. This model envisaged that there has been a significant migration of metals dissolved from Precambrian sediments through compaction de-watering, directed along relatively late-stage faults and regional structures which the company believed were clearly recognisable in regional magnetic data and on the processed seismic section for the main seismic reflection traverse conducted through the area by Geoscience Australia in 2003. These structures were believed to be involved in late stage tectonic movements that took place along the Torrens Hinge Zone, possibly during Delamerian inversion of the western Adelaide Geosyncline and Arrowie Basin. Part of Tasman’s exploration rationale was that any MVT deposits were likely to have formed in close proximity to the basin margin faults, as is the case on the Lennard Shelf in Western Australia. To investigate this concept, a detailed surface geochemical survey was conducted during May 2005 over one of the main fault structures recognised, with a view to defining drilling targets. A relatively new technique of soil gas geochemical analysis, Soil Desorption Pyrolysis (SDP) was employed here to try to detect certain expected compositional variations in the upper crustal non-atmospheric gas flux reaching the surface, originating from post-Cambrian to Recent diagenetic de-gassing of the sedimentary pile, which might denote the presence of an underlying MVT orebody [Note: the details of how this technique is used, and of the samples collected in the subject tenement area plus the relevant assay results, are provided in Appendix 1 of this Final Report, which is an extract of text taken from Tasman’s 2005 Combined Annual Report for the Lake Torrens Project that was previously submitted to PIRSA and is still held confidential]. On the precursor EL 3109, which included the subject ground, a subset of soil gas samples (sample nos. Z001 to Z078) was collected at 300 m intervals along traverses spaced 600 m apart that were laid out above the interpreted position of the basin margin fault. The SDP assay results from the entire 265 member survey sample set, collected over a 28 km strike length of the target fault zone, were compared with three different templates, two derived from a confidential soil geochemical orientation study that had been optimised to respond to the mineralisation occurring at the Ediacara lead-zinc-silver deposit, and a third derived from soil geochemical data sourced from WA's Bonarparte Basin. Statistical analysis of the survey data yielded two coherent MVT-characteristic gas flux anomalies situated on opposite sides of the Olympic Dam Borefield Road [but not within EL 3109]. The most coherent SDP anomaly lay at 695,300E, 6,665,600N, around sample Z103. The overall distribution of anomalous SDP values suggested that this target lies at the SE end of an anomalous region which extends northwestwards along strike for nearly 6 km, to the site of sample no. Z057 [which is located within EL 3109]. The second coherent SDP anomaly lay around sample Z139 at 697,400E, 6,662,400N. The SDP consultant recommended to Tasman that it should drill both of the above-described soil gas anomalies, which at that time lay on the adjoining EL 3209, at the earliest opportunity. This the licensee did, with the assistance of a PACE Initiative Year 4 drilling subsidy grant made to it by PIRSA early in 2007 [the results of this PACE Project, DPY4-39, have been reported separately in Env 11459, which was placed on open file on 5/11/2007]. No significant MVT or other mineralisation was encountered during the drilling of 3 RAB precollared diamond holes. No other work was carried out on the subject tenement area before it was surrendered.