Ragnar Metas (ASX: RAG) has identified three new targets through Downhole Induced Polarization and Resistivity (DHIP-R) and Downhole Transient Electromagnetic (DHTEM) surveys completed at Granmuren in Sweden.
Granmuren is located within the company’s wholly-owned Tullsta Nickel Project in Sweden, 110km NW of Stockholm.
“We are very excited about the new target areas defined by these new cutting-edge downhole geophysics technologies that provide evidence the Granmuren nickel-copper-cobalt system continues to expand in several directions at depth,” Executive Director, Eddie King, said.
The new 3D geophysical model has highlighted three new target areas:
Target Area 1: A large DHEM plate was interpreted from the extension of drill hole 21DDTS001, which intersected 92m of gabbro in the base of the hole below the main Granmuren Intrusion. DHIP-R and geological model supports this as a standalone gabbroic body parallel/below the main intrusion to the east.
The DHIP chargeability model is limited by the geophysical data from only a single drill hole but indicates a dimension greater than 180m x 100m x 50m. DHTEM modelling defined a plate with dimensions of 250m x 300m centred 140m east and above hole 21DDTS001, which intersects the DHIP-R model.
Since hole 21DDTS001 was terminated at a depth of 707m (downhole depth) within weakly disseminated sulphide-bearing gabbroic rocks. This target provides strong support for future drill testing to explore the extent of new gabbroic body and its potential to contain more extensive nickel sulphide mineralization. This new target area may connect as an apophasis extension of mineralization from 22DDTS012 where new assays returned: 31m at 0.63% Ni, 0.51% Cu, 0.06% Co from 401m including 7.4m at 0.85% Ni, 0.82% Cu & 0.08% Co from 406.0m and also 0.55m at 1.74% Ni, 0.80% Cu & 0.12% Co from 443.7m
Target Area 2: A large DHTEM plate was generated from drillhole 21DDTS001 and has a dimension of 300m x 350m. It is centred approximately 50m west and 25m south of the DHIP-R model and 200m southwest of drill hole 22DDTS007 that intersected 146.3m at 0.6% Ni & 0.5% Cu as well as sitting directly below 21DDTS002 that also intersected 35m of Ni-Cu mineralization including 7m at 1.2% Ni and 0.8% Cu.
This new DHTEM sits in a position which corresponds with the westerly extension of the southern Basal Zone within the gabbroic intrusion and could provide a reasonable extension of the known mineralization in a westerly direction, above and south of drillhole 22DDTS006.
This new target at depth to the west supports the westerly plunge supported by the DHIP conductivity and gabbro model.
Target Area 3: Another medium sized DHTEM plate 150m by 150m modelled from 21DDTS006 highlighting a new target at intermediate depth west along strike from 22DDTS010 recently returned the highest ever assays from the upper zone along the northern contact of the gabbro with 30m at 0.8% Ni, 0.5% Cu & 0.1% Co2 from 167m. This new target area is strongly supported by both the chargeability and conductivity DHIP 3D models.
Technical Discussion and Ongoing Work
The new DHIP and DHTEM models provide further evidence for Ragnar’s ore forming model and now provide new high priority target areas that will be tested for the deeper Basal contacts for massive and matrix sulphide mineralization toward the base of the gabbroic host intrusion in three different positions.
For further information please visit: https://www.ragnarmetals.com.au/