お知らせ • Mar 10
Rumble Resources Limited Announces Significant New Drilling Results At the Tonka and Navajoh Prospects Located Within the Earaheedy Project
Rumble Resources Limited announced significant new drilling results at the Tonka and Navajoh Prospects located within the Earaheedy Project, 140km northeast of Wiluna, Western Australia. The results have delineated a major increase in the dimensions of the mineralised footprint at the Tonka-Navajoh Prospects to an area of 8km by 1.4km and along with the Chinook Zn-Pb-Ag-Cu Prospect (4.1km x 1.9km), and clearly underlines the Earaheedy Project's credentials as a potential emerging world class base metal system. A further forty-six (46) RC drill-holes (total of 7450m) results have been received for the Tonka and Navajoh Prospects within the Earaheedy JV Project. Scoping on 500m line spacing has defined shallow northeast dipping unconformity related Zn-Pb mineralisation at the Tonka and Navajoh Prospects. The latest drilling has led to the Company merging the Tonka and Magazine Prospects which is now just known as the Tonka Prospect. Sulphide mineralisation (sphalerite, galena and pyrite) was intersected in the majority of holes with drill-hole assay intersections including: 20m @ 4.27% Zn + Pb, 3.71 g/t Ag from 112m (EHRC398) including 1m @ 8.75% Zn + Pb, 5.6 g/t Ag from 113m and 8m @ 6.75% Zn + Pb, 5.2 g/t Ag from 117m. 12m @ 4.41% Zn + Pb, 0.91 g/t Ag from 67m (EHRC320) including 6m @ 5.54% Zn + Pb, 1.13 g/t Ag from 72m. 19m @ 1.88% Zn + Pb, 2.37 g/t Ag from 143m (EHRC400) including 5m @ 5.09% Zn + Pb, 5.12 g/t Ag from 143m with 2m @ 7.49% Zn + Pb, 7.4 g/t Ag from 143m. 8m @ 3.22% Zn + Pb, 13.5 g/t Ag from 57m (EHRC315). Mineralisation is hosted within the Navajoh Unconformity Unit. The basal unconformity lithologies are variable with predomantly siltstone/sandstone hosting mineralisation to the southwest grading into silicified reworked carbonates after micrite/marl (proximal to palaeo-karst) towards the northeast. The mineralised footprint (>0.5 % Zn + Pb) at Tonka has grown to a strike of 4.3km and is up to 1.2 km in width (based on 8 sections) and remains open northwest and southeast along strike, and down-dip to the northeast. The drill hole sections are broad-spaced (currently scoping stage) on mainly 500m spaced lines. The size of the mineralisation footprint is similar to that currently outlined at the Chinook Prospect, which lies 6km to the northwest of Tonka. Down-dip (northeast) to the Tonka mineralisation, two broad spaced historic diamond core drill-holes returned strong anomalism, 10m @ 1.76% Zn + Pb (EDH001) and 50m @ 0.53% Zn + Pb (TDH19), which highlights the potential for continuity of mineralisation (down-dip). Further northeast into the Earaheedy Basin, a single historic diamond core drill hole returned a broad anomalous zone for 54m @ 0.96% Zn + Pb (TDH28). This intersection is some 1.7km down-dip of the Tonka and Navajoh Prospects. RC drilling comprised of four lines at 500m spacing at Navajoh. The main section has defined a continuous zone of Zn-Pb mineralisation over a 2km strike and 1.4km wide. The mineralisation is flatly dipping to the northeast (similar to Chinook and Tonka) and is open along strike to the southeast, to the northwest towards the Tonka Prospect and down dip to the northeast. Drill-hole assay intersections from Navajoh include: 17m @ 4.79% Zn + Pb, 4.25 g/t Ag from 170m (EHRC287) Incl 4m @ 8.31% Zn + Pb, 5.38 g/t Ag from 170m and 7m @ 5.62% Zn + Pb, 5.3 g/t Ag from 179m. 12m @ 4.48% Zn + Pb, 5.26 g/t Ag from 152m (EHRC419) Incl 6m @ 6.51% Zn + Pb, 7.1 g/t Ag from 152m. 23m @ 2.45% Zn + Pb, 1.18 g/t Ag from 176m to EOH (EHRC290) Incl 1m @ 4.25% Zn + Pb, 1.5 g/t Ag from 177m and 3m @ 7.52% Zn + Pb, 1.89 g/t Ag from 181m. 12m @ 3.47% Zn + Pb, 2.37 g/t Ag from 188m (EHRC289) Incl 3m @ 4.6% Zn + Pb, 3.03 g/t Ag from 190m, 1m @ 4.62% Zn + Pb, 3.8 g/t Ag from 195m and 1m @ 6.75% Zn + Pb, 4.8 g/t Ag from 198m. Like Tonka, the mineralisation is primary sulphide hosted in the Navajoh Unconformity Unit and consists of sphalerite, galena and pyrite. Lithologies immediately above the unconformity are predominantly clastic sediments including sandstone and siltstone. The Tonka - Navajoh mineralised trend currently has a combined strike of 8km and up to 1.4km in width (Navajoh). Only three historic drill-holes have effectively penetrated the mineralised Navajoh Unconformity Unit between Tonka and Navajoh. All holes were mineralised with results including: 19m @ 0.77% Zn + Pb to EOH (TRC80), 22m @ 0.64% Zn + Pb (TRC83) and 20m @ 0.37% Zn + Pb (RHRC005). As a result, the Rumble team consider it high likely that the Tonka and Navajoh mineralisation will merge into one very large prospect with further scoping drilling. Recently acquired airborne magnetics, detailed gravity data, and the 500m spaced (scoping) RC drilling has assisted the exploration team in updating the litho-structural interpretation of the Tonka-Navajoh mineralised trend. A series of northeast trending faults (structures) highlighted by both magnetics and gravity have a strong correlation with higher-grade zinc-lead mineralisation. These northeast structures are interpreted to be long lived, and it is inferred that their early development may be associated with the main metallogenic event, which is responsible for the widespread base metal mineralisation within the lower Earaheedy Basin. The structures are considered potential feeders and have been overprinted by the later faulting stages of the Lockeridge Fault System. The main lithologies trend northwest and dip between 5-10° to the northeast.