https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/3 Exploration reports submitted under mineral titles legislation 2026-06-09T16:18:43Z https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/94709 Title: ML 23812 Spring Hill Gold Project: Tats Target Round 18 Brownfields Diamond Drilling Collaborations Report Abstract: This report presents the findings of a 414.4m drill hole (SDH25-004), drilled for PC Gold Ltd with assistance provided by the Northern Territory Government under the Resourcing the Territory Initiative, via the Geophysics and Drilling Collaborations Program, Round 18, 2025-2026. The title of the Brownfields Diamond Drilling Proposal was 'PC Gold Spring Hill Gold Project Tats Target'. The field component of the project, the drilling of Hole SDH25-004, was completed between 7th July 2025 and 13th July 2025. The hole was cored from collar, recovering HQ3-sized core throughout the hole, to 414.4m. The Drilling contractors were DDH1 from Perth, who drilled the hole as part of an ongoing core drilling contract with PC Gold Ltd. Overall the drilling went smoothly with no major delays. The hole was collared at azimuth 240 degrees True and a dip of -55 degrees. The azimuth held well throughout the hole, with the gyro reading at 414.4m of 240.53 degrees True. The hole did however rise steadily throughout, with an EoH dip of - 41.71 degrees. These features have been common to many of the holes drilled at Spring Hill by DDH1. The rationale for the Tat's Target was to test the down-plunge extensions of Vein Heaven and Steve's Gully vein systems; two vein systems identified in early modern exploration at Spring Hill that were partially defined in the early 1990s but have received little attention since. They lie to the north and west of the defined Mineral Resource at Spring Hill but show similar characteristics to the sheeted vein systems at Hong Kong and Macau that host the bulk of the currently defined Resource. The hole was targeted at a zone where they coincide with a discrete magnetic high and the northern edge of an apparent gravity low that lies beneath Spring Hill. It is thought possible that this gravity low, identified in the recent PCO gravity survey, corresponds to a small hot-late intrusive or is a southerly extension of the Prices Springs Granite. SDH25-004 was believed to have been planned to sufficient depth to identify biotite or amphibolite alteration associated with any buried intrusive, which would support the Thermal Aureole Gold / Klominski hot-late Intrusive / Sheeted Vein Type model for gold mineralisation within the PCO. While good veining density was intersected, showing that the Vein Heaven sheeted vein system persists past the previously modelled strike extent of the Vein Heaven system, the hole intersected subdued gold grades. The best mineralised intersection was over the 5m interval from 289m to 294m down hole, which averaged 5m@ 0.467g/t Au. On the positive side, enargite (Cu3AsS4), often observed on the edges of strongly mineralised zones at Spring Hill, was observed on the edges of this zone, adding weight to the conclusion that the hole lifted too much to test the mineralised sections of the Steve's Gully and Vein Heaven sheeted vein systems. In deeper parts of the hole, between 340 and 357m, biotite was found to be present, so the hole was within the biotite isograd surrounding a nearby granite, lending weight to the concept that Spring hill sheeted vein systems are related to Thermal Aureole Gold / Klominski hot-late Intrusive / Sheeted Vein Type model for Gold mineralisation within the PCO. Armed with the knowledge gained from hole SDH20-004, it is now thought most likely that there is a steeper plunge to the core of the Steve's Gully and Vein Heaven system than was anticipated, probably like the steeper plunge to the Hong Kong Zone that could be inferred following the previous Round 15 Collaboration Drillhole into the Hong Kong Deeps. The next steps for the Tats Target will be to evaluate this concept. 2026-01-01T00:00:00Z https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/94708 Title: Structural review of the Pine Creek region Author: Jones, S; Green, M Abstract: A regional structural/geological interpretation for the Patronus tenements in the Pine Creek Orogen will help us to understand the deformation history and the structural setting of gold, VHMS base metals and unconformity style low temperature uranium. This study will synthesize all mapping, geophysical data, drillcore logs and existing 3D models to construct a regional interpretation and a 3D model of the major shears. A two-week field trip led by Dr Mike Green has provided important field relationships through the area. Mike's extensive knowledge of the area allowed access to crucial locations for the structural interpretation. Additional structural data for the Fountain Head deposit was collected using 'core profiler' software on drill core photographs. This report discusses the main findings, deformation history, structural setting of mineralisation, and prospectivity of the region. 2026-01-01T00:00:00Z https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/94706 Title: Combined Annual Report for the Eastern Project Area GR058 16 November 2016 to 15 November 2017 Author: Walters, A Abstract: Exploration Licences (EL's) in the Eastern Project Area (EPA), were acquired by Giants Reef Exploration Pty Ltd (Giants Reef) and Santexco Pty Ltd (Santexco) to search for Tennant Creek style iron oxide copper-gold deposits (IOCG). Giants Reef and Santexco are wholly owned subsidiaries of Emmerson Resources Ltd (Emmerson). This combined report records the exploration work completed on these EL's during the EPA Combined Reporting period from 16 November 2016 to the 15 November 2017. During the reporting period exploration activities were conducted under the Tennant Creek Joint Venture between Emmerson and Evolution, who has committed to spend $25M over 5 years. Exploration activities were limited to drilling at the Black Snake prospect. This drilling was aimed at an evaluation of a potential resource for mining purposes and any extension to this known mineralisation. The work was conducted in MLC 53 contained with EL 27537, as such the work will be reported in the Golden Forty Group Combined Report - GR417; Black Snake drilling consisted of 3 Reverse Circulation (RC) holes (BSRC017 - 019) totalling 105m. No significant intercepts were reported from this exploration although some anomalism was discovered and will be discussed in the GR417 report for the Golden Forty Group, which incorporates MLC 53 (Black Snake). Exploration in the Tennant Creek Mineral Field was Centred on two project areas, Edna Beryl and Gecko in Emmerson's Northern Project Area (NPA). Due to the focus here Emmerson was unable to continue its assessment and planning for exploration activities on the targets generated from the Kenex predictive modelling work in the EPA. Following the recent exploration success at Edna Beryl in MLC 705 these targets will be reassessed and re ranked in 2018 for future exploration. 2018-01-01T00:00:00Z https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/94705 Title: Corkscrew GR198-11 Annual Group Report 27 February 2017 to 26 February 2018 EL 10120 and EL 23509 Hayes Creek Project Author: Beckitt, G Abstract: Since purchasing the Hayes Ck project from Thundelarra early in 2014, Rockland Resources has undertaken significant due diligence work, deposit studies and field activities including drilling and airborne electromagnetics. There has been assessment and compilation of the previous geological, geochemical and geophysical exploration data along with integrated targeting analysis. During the reporting period a trial SkyTEM airborne electromagnetic survey has been completed over selected areas of the project. The survey has been completed over a) the Priscilla prospect within EL 10120 totalling 2.75 line km, b) the south west corner of EL 23509 (just west of the Davies prospect and MCN 4267) for a total of 7.6 line km, and c) west of Thunderball within EL 23509 for a total of 2 line km. This survey has confirmed a 2011 VTEM anomaly at Priscilla and identified a new anomaly nearby. In addition, there are VTEM anomalies .5-1 km south of Priscilla. These anomalies should be followed up with ground electromagnetics to identify precise drill targets for VMS mineralisation and likelihood the anomalies are geological rather than due to culture. Rockland's assessment of the historical drilling has re-affirmed the Priscilla prospect as a high priority target where drill to date has encountered up to 4 m (36-40 m) at 229.3 g/t and 4 m (16-20 m) at .9 g/t Au in hole TPCRC159. Integrated targeting has highlighted the possibility of a new mineralised corridor which stretches north north-west, linking to mineralisation in hole TPCRC167 (4 m at 11.8 g/t Au) located 230 m away, and also mineralisation a further 200 m away in hole TPCRC161 (4 m at 2 g/t Au). This prospective corridor covers a relatively large area with potential to host economic mineralisation. Integrated targeting has successfully identified several mid-high priority targets predominantly within EL 10120. There are positions northeast of Moonraker and west of Priscilla which have not been drill tested but have similar geology to other deposits in the area (i.e. Lower Mt Bonnie Formation west of the main anticline trend); New sub-surface parasitic anticlines have been identified from the magnetic and electromagnetic data along the western part of the tenement (upper Mt Bonnie Formation); The last 4 m composite in hole TPCRC176 has high uranium pathfinder elements (i.e Pb/Cu of 21.17) but was not assayed for uranium or other key elements; Soil geochemistry anomalies have been identified which appear to have not been targeted by drilling: A soil sample (LLFA soil sample D41238) has extremely high gold of 1.015 g/t Au, located 102 m northwest of hole TPCRC175; A soil sample (LLFA soil sample D51755) has elevated gold of .85 g/t Au, located 243 m west of hole TPCRC159 and 127 m southwest of hole 93YCRC008; Two auger vacuum drilling soil samples located 50 m apart have extremely high gold of 2.379 and 1.085 g/t Au (LLFA soil sample B18498 and B18499) on the edge of Crocodile Gold mining licence MCN624 but could be followed up within Rockland's ground immediately south within EL 10120; Several LLFA soil samples from two lines (i.e. sample D41227) have high As (to 330 ppm) and weak Au (.09 g/t which is twice background) along a trend 200-400 m southwest of hole TPCRC175; and MMI samples by Northern Gold are up to 40 times background (ie. sample 150093 to .046 g/t) located 230 m north of TPCRC175. Each of these areas requires detailed prospecting and multi-element soil/chip sampling. An orientation geochemical program (soil and drill-hole geochemistry/pXRF) should be conducted at the Osborne South and Priscilla prospects to refine the methodology and signature. The Priscilla Line is covered by recent sediments and also historical alluvial mining/prospecting, which may adversely affect the ability of geochemistry to correctly identify basement mineralisation. To assist with targeting ahead of drilling, Sub-audio magnetics (SAM) and VTEM is proposed. The VTEM has proven ability to map carbonaceous lithologies in 3D. SAM has not previously been utilised in the region and may provide an important new tool to map in detail resistivity changes related to controlling shears and quartz-bearing structures. Project scale gravity is being considered to interpret sub-surface intrusions and aureoles to guide regional target filtering and prospectivity for gold mineralisation. 2018-01-01T00:00:00Z