During the sixth year of the project, base metals exploration was focussed on the Mars-Aurora Tank, Wirrida and Bundi prospects using ground gravity and IP survey methods. Some trial magnetotelluric and audio-frequency magnetotelluric survey profiles were read across the western part of the Wirrida prospect and at Bundi prospect. Resulting interpreted chargeability anomalies in the basement were then drill tested. The first activity completed for the year was the submission by Apollo Minerals of 22 outcrop rock chip samples from sites dispersed within the project licences or located very close by, for zircon U-Pb geochronological dating carried out by the CODES – ARC Centre of Excellence in Ore Deposits facility at at the University of Tasmania, using LA-ICP-MS methods. This study was additional to the PACE 2020 Geochronology collaboration project which was approved by DMITRE in 2013 to date outcrop samples of inferred Gawler Range Volcanic (GRV) units mapped by the licensee, to help conceptually with resolving their possible local IOCG mineralisation potential, because the licensee wished to further expedite the geochronology aspect of its exploration programme. However, the alternate dating results obtained from CODES in late 2013 were too widespread in ages to give any confidence about the petrogenetic integrity of the samples which had been collected by the licensee late in 2012, and thus were deemed to be inconclusive [for advice about this third party interpretation, please contact Anthony Reid at GSSA ]. The licensee had been hoping to obtain dating evidence to support its working concept of the IOCG-U prospective GRV extrusive rocks and related Hiltaba Suite granites occurring much further north than is shown by the SA Government's current mapping information on the Worong and Carnding 100K geological map sheets. [For the subsequently released final results of the PACE 2020 geochronology programme research work, see RB 2015/00003 re. Project PGC03-11]. On 13-14 September 2013, three trial MT reconnaissance lines were surveyed at the Bundi and Wirrida prospects, in part to augment previously acquired ground EM data. A total of 20 controlled source MT stations were occupied at 450 m intervals along two NE-SW lines crossing each prospect, and 11 AMT stations were occupied at 100 m intervals along a single north-south line across Bundi. The contractor's 2D modelling of the MT data identified a possible north-west trending conductor at Bundi. In November 2013 on EL 5073, wireline geophysical logging was performed in two of Apollo Minerals' previously drilled holes at the Acacia East prospect, ACEDD001 and ACEDD003. Two logging tools were separately run to measure magnetic susceptibility / inductive conductivity / natural gamma radiation, and borehole temperature / 16" and 64" normal and lateral resistivity / spontaneous potential + point resistivity. In December 2013, a ground gravity survey was acquired over the Mars-Aurora Tank prospect, when 670 stations were read on a regular grid at 150 m x 450 m/150 m spacings. The new gravity data defined several small density anomalies that are offset to the west from the prospect's 6 km long magnetic high, and it was surmised that these may represent haematite-rich bodies with iron ore potential, lying at drillable depths. During April-May 2014, project farminee High Power Exploration, Inc. (HPX) acquired a total of 349 line km of gradient array IP coverage of various targets on parts of ELs 4960 and 5074, using its proprietary Typhoon input current energy source. The IP data were read along north-south lines 400 m apart, using 200 m offset station spacings. Several chargeability anomalies were identified over the Wirrida Intrusive Complex basement rocks (possible base metal sulphides?) and nearby at a site located just east of Bore 53. During June-July 2014, follow-up exploratory drilling was conducted by HPX on EL 5074 at Wirrida, when 6 RC holes totalling 1036.2 m were drilled, four of which had NQ diamond cored tails (340.7 m cored). The two uncored holes totalling 132 m were drilled vertically as water supply bores, whereas the others were declined in order to effectively sample the basement lithologies penetrated. The three Wirrida prospect holes all penetrated coarse grained gabbro/norite from the Wirrida Intrusive Complex which contains trace amounts of mineralisation, including a best intercept of 4 m @ 294 ppm Cu, 890 ppm Ni and 28 ppb Au made from 20 m downhole in hole WIRDD001. The drill cores were seen to often contain disseminated pyrite, and the Ni:Cu ratio in assay results suggests that source of the sulphides is magmatic. The petrology thin section descriptions suggested that the rocks have undergone low granulite grade metamorphism and were originally from parts of a layered intrusion (samples showed cumulate textures) of shoshonitic or basaltic composition. This intrusion has later been cut by much younger Gairdner dolerite dykes. Hole B53DD001 was drilled to 210.8 m to test one of HPX's high chargeability anomalies that is unsupported by gravity anomalism, which lies outside of and ~5 km south of the Wirrida magnetic intrusive complex. The upper part of this hole intersected quartz-biotite-feldspar-garnet gneisses of broadly granodioritic-dioritic composition. Assaying of drill cuttings from 32-36 m downhole returned 100 ppb Au and 101 ppm Cu associated with superficial clays. From 152-168 m downhole there is a transition zone where total SiO2 assay values decrease and MgO increases. Below 168 m the hole intersected a coarse-grained holocrystalline rock largely composed of phlogopite, pale brown hornblende, and chlorite - altered clinopyroxene with common accessory apatite. Without doing further work this rock could not be definitely classified by the consultant petrologist, but it was thought to probably represent the plutonic equivalent of a lamprophyre dyke. In contrast to other basic-ultrabasic rocks known from within the project area, this rock contains ~400 ppm Ni, and in its upper contact zone, weakly anomalous copper (140-160 ppm Cu). During the seventh year of the project, following the abrupt withdrawal of HPX from involvement in it, one exploratory inclined RC hole for 211 m, 14AT002, was drilled in August-September 2014 by Apollo Minerals on EL 5073 at the Mars-Aurora Tank prospect, and another vertical RC hole for 226 m, 15WIRRC001, was drilled on the northern margin of the Wirrida Complex. The latter hole was designed to test an IP anomaly which appeared both chargeable and conductive. The upper part of the hole intersected feldspar-garnet-mica gneiss with free quartz, and became more melanocratic further down, with both K-feldspar and plagioclase frequently being present. Some patchy potassic alteration was noted in places. The deeper part of the sequence was cut by five thin younger dolerite intrusions. Assaying of 3- and 4-metre composite drill cuttings intervals failed to return any significant trace metal values. Hole 14AT002 was designed to test a moderately strong gravity anomaly at a site adjacent to earlier shallow RAB and RC drilling which had intersected up to 2 g/t Au, plus 700 ppm Cu and 38% Fe. The downhole interval 21-24 m returned the best gold assay results, with each descending metre recording 8, 5, 13 and 135 ppb Au respectively from the top of the saprolite zone. The only other assay result of significance was 15 ppb Au @ 200-204 m. This hole encountered a shear zone contained in quartz-feldspar-biotite schists probably derived from an igneous protolith, which from 78-100 m downhole had been intruded by a sheared amphibolite after a dolerite/gabbro protolith, probably a dyke. No obvious source of the anomalous mass indicated by the gravity data was present in this hole. Apollo stated that it had now tested the initial targets generated from airborne and ground geophysical surveys carried out over the past two years, and had generated a significant volume of new data including geochronology and rock chemistry. Apart from the Mars-Aurora Tank prospect, none of the prospects tested appeared to be either within rocks presenting valid Palaeoproterozoic-Archaean Au-Cu-Fe targets, or in Hiltaba-age rocks prospective for IOCG or epithermal/hydrothermal Cu-Au deposits. Two samples from hole 14AT002, four samples from each of holes WIRDD001/003 and B53DD001, and four samples from historic hole SADME SEE006 drilled at the Sequoia prospect in 2012 were submitted for petrographic examination. During the eighth year of the project (2015-2016), no field work was done. Apollo engaged consultant Kevin Wills to make an expert review of the regional and local gold prospectivity, with particular reference to the Mars - Aurora Tank prospect [see also Env 12135, as this prospect straddles the common boundary of ELs 5073 and 5589]. He stated that this prospect is a worthy one, and amongst a number of advisory points raised, recommended that it be further evaluated via a proposed substantial, two-stage drilling programme that should provide vectors towards gold mineralisation of ore grade from within the large dispersion envelope, which includes the saprolite zone. During the ninth and tenth years of the project, no work was done.