Rupert Resources Reports New Results From Winter Drilling Campaign Including 16G/T Over 25M at Heinä South and Extension to Mineralisation at Ikkari
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Figure 1. Schematic structural interpretation of Ikkari and surrounding high-priority exploration targets showing the location of the new drilling at Heinä South. Black box shows the location of more detailed plan map, Figure 2
Highlights
- #124019 – intersected 25m at 16.5 g/t Au from 83m including 1m at 363g/t Au and 2m at 10.8g/t Au. The hole also intersected multiple other intercepts including 1m at 256g/t Au from 25m, 1m at 48.3g/t Au from 146m and 14m at 1.2g/t Au from 201m. Drilling continues and results from seven further drill holes in HeinäSouth are pending.
- #124014 tested extensions of mineralisation along the shallow plunge at depth in the west of Ikkari. The drillhole yielded multiple intercepts including both wider intercepts (23.70m at 1.7g/t Au from 602m, including 1m at 16.6g/t Au) and higher-grade intercepts (5m at 5.2g/t Au from 633m, including 1m at 19.8g/t Au and 3m at 32.7g/t Au from 655m, including 1m at 93.8g/t Au) in the target area demonstrating that mineralisation at Ikkari remains open to the west at depth.
Heinä South
Ongoing drilling at Heinä South target continues to identify a broader style of mineralisation at the target than was in evidence from drilling undertaken in previous years. #124019, reported today, returned 25.0m at 16.5g/t Au including 1.0m at 363g/t Au with wider mineralised intervals hosted in sulphide rich breccia units. #124019 is an 80m step-out to the east from previously reported #124001 (24.5m at 1.1g/t Au). The high-grade potential of the Heinä South target area is further evidenced by the high-grade intercept of 558g/t Au over 2m in 124006, located a further 250m to the east, see press release dated 8th of
Ikkari extension
#124014 is the first hole to be reported from Ikkari from the winter 2023/24 program. results show multiple mineralised intercepts with the main target area yielding both wider (23.70m at 1.7g/t Au from 602m, including 1m at 16.6g/t Au) and higher grade (5m at 5.2g/t Au from 633m, including 1m at 19.8g/t Au and 3m at 32.7g/t Au from 655m, including 1m at 93.8g/t Au) intercepts. These intercepts provide further evidence for the shallow western plunge interpreted in this portion of the deposit where mineralisation remains open to the west. The intercepts from #124014 represent a 75m step-out along plunge from previously released #123026, 88.70m at 1.3g/t Au from 487.30m including 13m at 3.1g/t Au from 495m (see release dated May, 23 2023) that was included in the
Geological interpretation of Ikkari
Ikkari was discovered using systematic regional exploration that initially focused on geochemical sampling of the bedrock/till interface through glacial till deposits of 5m to 40m thickness. No outcrop is present, and topography is dominated by low-lying swamp areas.
The Ikkari deposit occurs within rocks that have been regionally mapped as 2.05-2.15 billion years (“Ga”) old Savukoski group greenschist-metamorphosed mafic-ultramafic volcanic rocks, part of the Central Lapland Greenstone Belt (“CLGB”). Gold mineralisation is largely confined to the structurally modified unconformity at a significant domain boundary. Younger sedimentary lithologies are complexly interleaved, with intensely altered ultramafic rocks, and the mineralized zone is bounded to the north by a steeply N-dipping cataclastic zone. Within the mineralised zone lithologies, alteration and structure appear to be sub-vertical in contrast to wider Area 1 where lithologies generally dipping at a moderated angle to the north.
The main mineralized zone is strongly altered and characterised by intense veining and foliation that pervasively overprints original textures. An early phase of finely laminated grey ankerite/dolomite veins is overprinted by stockwork-like irregular siderite ± quartz ± chlorite ± sulphide veins. These vein arrays are often deformed with shear-related boudinage and in situ brecciation. Magnetite and/or haematite are common, in association with pyrite. Hydrothermal alteration commonly comprises quartz-dolomite-chlorite-magnetite (±haematite). Gold is hosted by disseminated and vein-related pyrite. Multi-phase breccias are well developed within the mineralised zone, with early silicified cataclastic phases overprinted by late, carbonate- iron-oxide- rich, hydrothermal breccias which display a subvertical control. All breccias frequently host disseminated pyrite, and are often associated with higher gold grades, particularly where magnetite or haematite is prevalent. In the sedimentary lithologies, albite alteration is intense and pervasive, with pyrite-magnetite (± gold) hosted in veinlets in brittle fracture zones.
Geological interpretation of Heinä South
The Heina South target was reappraised based on results from a new higher resolution geophysical survey flown in later 2023 which identified a south-west extension which had been untested in previous years due to a lack of base of till anomalism. Gold mineralisation in the west of Heinä South is associated with multi-phase sulphide mineralisation consisting of pyrite+-pyrrhotite+-chalcopyrite, principally occurring as the matrix to an earlier brecciated (iron)-carbonate phase. The earlier veins occur primarily within altered carbonaceous sediments folded between more homogenous gabbroic units. Gold mineralisation in the east of Heinä South is hosted within quartz-pyrite and massive pyrite veins and as lenses, as part of a stockwork of quartz-carbonate veins. Zones of massive pyrite contain the highest grades (>10g/t Au) with disseminated sulphide zone containing anomalous (<0.5g/t) gold. Early quartz-carbonate veins are overprinted by extensional veins that include coarse-grained pyrite and form sub-parallel trends, broadly related to lithological contacts between sediments and mafic-intermediate intrusives, although mineralisation also occurs within both lithologies. Further drilling is required to allow a resource to be published for the occurrence.
Review by Qualified Person, Quality Control and Reports
The majority of samples are prepared by ALS Finland in either Sodankylä or Outokumpu. Fire assays are subsequently completed at ALS Romania whilst multielement analysis is completed in ALS Ireland or
Results presented for Hole 124019 include results from screen fire assay as indicted in Table 2. Screen fire assays were requested due to the presence of coarse gold in the drill core and were performed by ALS Romania. Screen fire assays involve the screening of 1kg at 106 microns to separate the sample into a coarse fraction (>106μm) and a fine fraction (<106μm). After screening, two 50g sub-samples of the fine fraction are analysed using the normal 50g fire assay method with aqua regia digest and analysis by AAS for gold. The entire coarse fraction is assayed to determine the contribution of the coarse gold using fire assay and gravimetric finish. The “total” gold calculation for the 1kg sample is based on the weighted average of the coarse and fine fractions and is reported for the indicated samples.
Base of till samples are prepared in ALS Sodankylä by dry-sieving method prep-41 and assayed for gold by fire assay with ICP-AES finish. Multi-elements are assayed in ALS laboratories in either of
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Cautionary Note Regarding Forward Looking Statements
This press release contains statements which, other than statements of historical fact constitute “forward-looking statements” within the meaning of applicable securities laws, including statements with respect to: results of exploration activities and mineral resources. The words “may”, “would”, “could”, “will”, “intend”, “plan”, “anticipate”, “believe”, “estimate”, “expect” and similar expressions, as they relate to the Company, are intended to identify such forward-looking statements. Investors are cautioned that forward-looking statements are based on the opinions, assumptions and estimates of management considered reasonable at the date the statements are made, and are inherently subject to a variety of risks and uncertainties and other known and unknown factors that could cause actual events or results to differ materially from those projected in the forward-looking statements. These factors include the general risks of the mining industry, as well as those risk factors discussed or referred to in the Company's annual Management's Discussion and Analysis for the year ended
1
The Mineral Resource Estimate for the Ikkari project has been prepared in accordance with NI 43-101 and following the requirements of Form 43-101F1. The methodology used to determine the Mineral Resource Estimate is consistent with the
The QP for the Ikkari Mineral Resource estimate is Mr.
The effective date of the 2023 Mineral Resource Estimate for Ikkari is
APPENDIX
Table 1. Collar locations of new drill holes, Heinä South
Hole ID |
Prospect |
Easting |
Northing |
Elevation |
Azimuth |
Dip |
EOH (m) |
124009 |
Heinä South |
452559.2 |
7497304.2 |
226.5 |
152.8 |
-50.7 |
242.20 |
124011 |
Heinä South |
452593.2 |
7497231.4 |
226.6 |
153.7 |
-50.4 |
223.90 |
124015 |
Heinä South |
452626.8 |
7497159.3 |
226.6 |
153.3 |
-50.8 |
164.00 |
124017 |
Heinä South |
452241.4 |
7497197.7 |
226.8 |
154.4 |
-50.1 |
250.50 |
124019 |
Heinä South |
452281.3 |
7497301.7 |
226.7 |
153.8 |
-50.5 |
277.30 |
Table 2. New Intercepts from Heinä South
Hole ID |
|
From (m) |
To (m) |
Interval (m) |
(g/t) |
124009 |
|
65.00 |
66.00 |
1.00 |
0.7 |
|
|
202.00 |
203.00 |
1.00 |
0.6 |
|
|
211.00 |
212.00 |
1.00 |
0.5 |
|
|
216.00 |
217.00 |
1.00 |
6.3 |
124011 |
|
83.50 |
84.00 |
0.50 |
0.8 |
|
|
85.00 |
86.00 |
1.00 |
0.5 |
|
|
104.00 |
105.00 |
1.00 |
1.0 |
|
|
109.00 |
113.00 |
4.00 |
0.7 |
|
|
144.00 |
145.00 |
1.00 |
0.9 |
124015 |
|
16.00 |
23.00 |
7.00 |
0.4 |
|
including |
19.00 |
20.00 |
1.00 |
1.6 |
124017 |
|
122.00 |
123.00 |
1.00 |
0.9 |
|
|
128.00 |
129.00 |
1.00 |
1.2 |
|
|
174.00 |
177.00 |
3.00 |
0.6 |
|
|
182.00 |
183.00 |
1.00 |
0.4 |
|
|
185.00 |
187.50 |
2.50 |
0.9 |
124019 |
|
19.00 |
20.00 |
1.00 |
0.4 |
|
|
24.00 |
25.00 |
1.00 |
2561 |
|
|
76.00 |
78.00 |
2.00 |
0.5 |
|
|
83.00 |
108.00 |
25.00 |
16.512 |
|
including |
86.00 |
87.00 |
1.00 |
3631 |
|
and |
99.00 |
106.00 |
7.00 |
4.81 |
|
also includes |
101.00 |
103.00 |
2.00 |
10.81 |
|
|
121.00 |
122.40 |
1.40 |
0.7 |
|
|
127.00 |
129.00 |
2.00 |
0.5 |
|
|
143.00 |
144.00 |
1.00 |
0.41 |
|
|
146.00 |
147.00 |
1.00 |
48.31 |
|
|
163.00 |
189.00 |
26.00 |
0.7 |
|
|
196.00 |
197.00 |
1.00 |
0.5 |
|
|
201.00 |
215.00 |
14.00 |
1.2 |
|
including |
201.00 |
202.00 |
1.00 |
3.1 |
|
including |
212.00 |
213.00 |
1.00 |
4.6 |
1Assays include results from Screen Fire Assay, all other results from standard 50g fire assay. |
|||||
2Intercept contains four (4) meters of internal dilution, see Figure 4 for individual assays |
No upper cut-off grade has been applied. 0.4g/t Au lower cut-off applied, a maximum of 3m internal dilution has been allowed when calculating intercepts unless otherwise stated. All intervals over the cut-off grade are presented here. Italic intervals indicate intercepts including within the wider intercept. Unless specified, true widths cannot be accurately determined from the information available. Bold intervals referred to in text of release. Refer to https://rupertresources.com/news/ for details of previously released drilling intercepts. EOH– End of Hole. NSI – No significant intercept
Table 3. Collar locations of new drill holes, Ikkari
Hole ID |
Prospect |
Easting |
Northing |
Elevation |
Azimuth |
Dip |
EOH (m) |
123117 |
Ikkari |
454650.5 |
7496703.6 |
238.5 |
152.0 |
-54.9 |
251.00 |
124012 |
Ikkari |
454606.7 |
7496704.3 |
236.8 |
154.7 |
-50.7 |
183.00 |
124013 |
Ikkari |
454685.9 |
7496727.0 |
238.4 |
154.7 |
-51.2 |
147.00 |
124014 |
Ikkari |
453622.5 |
7497039.5 |
228.1 |
154.8 |
-51.2 |
740.90 |
Table 4. New Intercepts from Ikkari
Hole ID |
|
From (m) |
To (m) |
Interval (m) |
(g/t) |
123117 |
|
42.00 |
75.00 |
33.00 |
0.9 |
|
Including |
42.00 |
52.00 |
10.00 |
1.5 |
|
also includes |
51.00 |
52.00 |
1.00 |
4.2 |
|
and |
64.00 |
69.00 |
5.00 |
1.4 |
|
and |
74.00 |
75.00 |
1.00 |
3.8 |
|
|
121.60 |
123.00 |
1.40 |
1.4 |
124012 |
|
60.00 |
61.00 |
1.00 |
2.8 |
|
|
71.00 |
75.00 |
4.00 |
2.5 |
|
Including |
71.00 |
72.00 |
1.00 |
6.2 |
|
|
98.00 |
99.00 |
1.00 |
1.7 |
|
|
123.00 |
124.00 |
1.00 |
2.0 |
124013 |
|
113.70 |
114.00 |
0.30 |
4.8 |
124014 |
|
246.00 |
247.00 |
1.00 |
3.2 |
|
|
282.00 |
285.00 |
3.00 |
1.5 |
|
Including |
282.00 |
283.00 |
1.00 |
3.9 |
|
|
290.00 |
299.00 |
9.00 |
1.0 |
|
Including |
298.00 |
299.00 |
1.00 |
4.1 |
|
|
313.00 |
314.00 |
1.00 |
1.4 |
|
|
361.00 |
376.00 |
15.00 |
1.3 |
|
Including |
364.00 |
367.00 |
3.00 |
3.1 |
|
|
391.00 |
394.00 |
3.00 |
0.6 |
|
|
403.00 |
409.00 |
6.00 |
1.7 |
|
|
438.00 |
439.00 |
1.00 |
1.0 |
|
|
477.00 |
482.00 |
5.00 |
0.7 |
|
Including |
477.00 |
478.00 |
1.00 |
2.3 |
|
|
577.00 |
578.00 |
1.00 |
1.8 |
|
|
590.00 |
595.00 |
5.00 |
1.0 |
|
Including |
594.00 |
595.00 |
1.00 |
3.3 |
|
|
602.00 |
625.70 |
23.70 |
1.7 |
|
Including |
602.00 |
603.00 |
1.00 |
16.6 |
|
|
633.00 |
638.00 |
5.00 |
5.2 |
|
Including |
634.00 |
635.00 |
1.00 |
19.8 |
|
|
655.00 |
659.00 |
3.00 |
32.7 |
|
Including |
657.00 |
658.00 |
1.00 |
93.8 |
|
|
680.00 |
681.00 |
1.00 |
2.6 |
No upper cut-off grade has been applied. 0.4g/t Au lower cut-off applied. Maximum interval accepted with no assay above cut-off grade when calculating intercepts is 5m. All intervals over the cut-off grade and greater than 1gram-meter are presented here. Italic intervals indicate intercepts including within the wider intercept. Unless specified, true widths cannot be accurately determined from the information available. Bold intervals referred to in text of release. Refer to https://rupertresources.com/news/ for details of previously released drilling intercepts. EOH– End of Hole. NSI – No significant intercept
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Chief Executive Officer
jwithall@rupertresources.com
Head of Corporate Development
tcredland@rupertresources.com
Tel: +1 416-304-9004 Web:
http://rupertresources.com/
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