Broad, Shallow Gold Zone at Red Mountain
TORONTO, Sept. 27, 2022 (GLOBE NEWSWIRE) -- Xanadu Mines Ltd (ASX: XAM, TSX: XAM) (Xanadu or the Company) is pleased to announce initial trenching results from the 100% owned Red Mountain project located within the Dornogovi Province of southern Mongolia, approximately 420km southeast of Ulaanbaatar and 70km west of the provincial centre of Sainshand.
Highlights
- Assays returned for 1,170m of the 6,500m trenching program at Red Mountain.
- Initial focus on Target 33 (T33) returned a broad zone of shallow gold mineralisation.
- Significant intercepts include OUTR109 with 66m @ 0.37g/t Au from 26m,
- including 18m @ 0.81g/t Au from 50m,
- including 10m @ 1.23g/t Au from 58m.
- OUTR109 results, combined with historic trenching results, define a 350m x 80m zone of highly anomalous gold, including a higher-grade core greater than 1g/t Au.
- Anomalous gold zone remains open to the west and a future drill program will test 50m below this zone in multiple sections.
- Trenching continues to test additional targets for surface gold and copper mineralisation across the 57m2 tenement.
Xanadu’s Executive Chairman & Managing Director, Colin Moorhead said: “We are encouraged by this solid start to the Red Mountain trenching program. Initial results from T33 outline a zone of strongly anomalous gold (greater than 0.2g/t Au) at surface that extends for 350m along strike and 80m wide, and within this zone is a higher-grade core (greater than 1g/t Au). We look forward to the remaining trenching assays, which will define our future drill program for Red Mountain.
T33 Trenching
Assays have been returned at T33 for approximately 1,170m of trenching over seven trenches, targeting an area of high-grade gold identified in previous trenching and drilling. Assay results returned broad zones of anomalous gold (Table 1 and Figure 1), associated with felsic intrusive and strong alteration.
When combined with previous work at T33 1,2, these new results expand upon the previous broad, highly anomalous gold zone at surface to a current interpretation of approximately 350m long and 80m wide, including a higher-grade core greater than 1g/t Au. This anomalous gold zone remains open to the west and will be investigated through a drill program of stab holes designed to test approximately 50m below this zone in multiple sections.
TABLE 1: Significant 2022 Trench Intercepts Red Mountain T33 (horizontal metres shown)
| Trench ID | From (m) | Interval (m) | Au (g/t) | Cu (%) |
| OUTR109 | 26 | 66 | 0.37 | 0.04 |
| including | 50 | 32 | 0.60 | 0.04 |
| including | 50 | 18 | 0.81 | 0.05 |
| including | 58 | 10 | 1.23 | 0.09 |
| and | 106 | 4 | 0.97 | 0.04 |
FIGURE 1: Red Mountain T33 trench locations and current & historical assay results.3, 4
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2022 Red Mountain Exploration Program
Xanadu is undertaking a disciplined and systematic exploration program, which includes:
- Detailed geological work, 3D geophysical and geochemical modelling;
- Trenching to test strike extent and develop drill targets; and
- Drill program focussed on shallow gold, silver and copper targets.
This announcement reports trenching results from the initial 1,170 horizontal metres of a planned 6,500 metre program. The program is designed to test strike extent and develop targets for follow-up diamond drilling program.
Surface trenching has proven to be a rapid and economic target definition approach prior to diamond drilling, and this program will include extensive trenching over several new, gold, silver and copper targets.
About Red Mountain
Xanadu’s Red Mountain porphyry copper-gold-silver project is located within the Dornogovi Province of southern Mongolia, approximately 420km southeast of Ulaanbaatar (Figure 2), and 70km west from the provincial centre of Sainshand. The project has a granted 30-year mining licence and comprises an underexplored porphyry district (covering approximately 57km²).
FIGURE 2: Location of Red Mountain in the South Gobi region of Mongolia
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Red Mountain mineralisation is associated with late-stage monzonite and quartz diorite porphyry dykes and stocks emplaced on the flanks of the Red Mountain Intrusive Complex (Figure 3). This consists of multiple co-genetic porphyry gold and copper centres, mineralised tourmaline breccia pipes, gold and copper base metal magnetite skarns and epithermal gold veins.
Previous exploration at Red Mountain has defined several broad zones of strongly mineralised quartz stockwork veining associated with high-grade gold and increasing alteration strength, with the mineralisation style suggesting strong likelihood for depth extensions.
FIGURE 3: Red Mountain Mining Licence, showing ground Landsat data, gold geochemistry and priority targets
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Shallow gold-rich and silver-rich copper mineralisation has been identified in numerous zones, located within a 4.5km long and 300m wide prospective mineralisation zone. This mineralisation is primarily located in Bavuu, Stairy, Diorite, Target 33, Nowie and Stockwork (Figure 3). Broad spaced drilling has confirmed gold mineralisation is hosted by hematite-quartz veins with coarse visible gold, occurring as multiple stacked arrays. Veins are typically narrow, but very high-grade with gold assays ranging from 1 g/t to >30 g/t gold over widths of 0.5m to 1.5m. Mineralised veins are characterised by banded and crustiform quartz and abundant sulphides. All these features are commonly found in the lower boiling zone of epithermal system, where bonanza grades are expected.
In addition to shallow, high-grade mineralisation, Red Mountain has potential for large-scale porphyry at depth. Highly anomalous geochemistry corresponds to broad zones of porphyry mineralisation from trenching, zoned porphyry alteration, overlapping with large-scale magnetic and gravity anomalies, representing a compelling string of very large porphyry targets over 6km strike (Figure 3). Initial deeper drilling in 2017 encountered 200-300m wide zones of porphyry style mineralisation at Target 10.
About Xanadu Mines
Xanadu is an ASX and TSX listed Exploration company operating in Mongolia. We give investors exposure to globally significant, large-scale copper-gold discoveries and low-cost inventory growth. Xanadu maintains a portfolio of exploration projects and remains one of the few junior explorers on the ASX or TSX who control a globally significant copper-gold deposit in our flagship project. For information on Xanadu visit: www.xanadumines.com
Colin Moorhead
Executive Chairman & Managing Director
Xanadu Mines Ltd
[email protected]
+61 2 8280 7497
This Announcement was authorised for release by Xanadu’s Executive Chairman & Managing Director.
Appendix 1: Trenching Results
Table 1: Trench Locations at T33
| Trench ID | Prospect | East | North | RL | Azimuth (°) | Inc (°) | Length (m) |
| OUTR108 | Target 33 | 373812 | 4938096 | 1068 | 175 | -5 | 176.0 |
| OUTR109 | Target 33 | 373858 | 4938085 | 1063 | 173 | -4 | 173.0 |
| OUTR110 | Target 33 | 374095 | 4938100 | 1050 | 178 | -2 | 178.0 |
| OUTR111 | Target 33 | 374147 | 4938108 | 1067 | 179 | -6 | 179.4 |
| OUTR112 | Target 33 | 374201 | 4938116 | 1063 | 180 | -6 | 150.0 |
| OUTR113 | Target 33 | 374247 | 4938138 | 1060 | 179 | -4 | 144.0 |
| OUTR114 | Target 33 | 374296 | 4938165 | 1054 | 179 | -2 | 170.4 |
Table 2: Significant 2022 Trenching Intercepts from T33
| Trench ID | From (m) | To (m) | Interval (m) | Au (g/t) | Cu (%) |
| OUTR108 | 10 | 36 | 26 | 0.20 | 0.06 |
| including | 16 | 30 | 14 | 0.32 | 0.05 |
| and | 46 | 62 | 16 | 0.20 | 0.21 |
| and | 72 | 116 | 44 | 0.16 | 0.07 |
| OUTR109 | 26 | 92 | 66 | 0.37 | 0.04 |
| including | 50 | 82 | 32 | 0.60 | 0.04 |
| including | 50 | 68 | 18 | 0.81 | 0.05 |
| including | 58 | 68 | 10 | 1.23 | 0.09 |
| and | 106 | 110 | 4 | 0.97 | 0.04 |
| OUTR110 | 10 | 18 | 8 | 0.13 | 0.06 |
| and | 80 | 86 | 6 | 0.12 | 0.03 |
| and | 100 | 116 | 16 | 0.10 | 0.08 |
| and | 130 | 140 | 10 | 0.16 | 0.01 |
| and | 156 | 160 | 4 | 0.15 | 0.04 |
| OUTR111 | 54 | 72 | 18 | 0.17 | 0.07 |
| OUTR113 | 110 | 126 | 16 | 0.11 | 0.02 |
| OUTR114 | 10 | 16 | 6 | 0.12 | 0.06 |
Appendix 2: Statements and Disclaimers
Competent Person Statements
The information in this Announcement that relates to exploration results is based on information compiled by Dr Andrew Stewart, who is responsible for the exploration data, comments on exploration target sizes, QA/QC and geological interpretation and information. Dr Stewart, who is an employee of Xanadu and is a Member of the Australasian Institute of Geoscientists, has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity he is undertaking to qualify as the “Competent Person” as defined in the 2012 Edition of the Australasian Code for Reporting Exploration Results, Mineral Resources and Ore Reserves (JORC Code, 2012) and the National Instrument 43-101. Dr Stewart consents to the inclusion in the report of the matters based on this information in the form and context in which it appears.
Forward-Looking Statements
Certain statements contained in this Announcement, including information as to the future financial or operating performance of Xanadu and its projects may also include statements which are ‘forward‐looking statements’ that may include, amongst other things, statements regarding targets, estimates and assumptions in respect of mineral reserves and mineral resources and anticipated grades and recovery rates, production and prices, recovery costs and results, capital expenditures and are or may be based on assumptions and estimates related to future technical, economic, market, political, social and other conditions. These ‘forward-looking statements’ are necessarily based upon a number of estimates and assumptions that, while considered reasonable by Xanadu, are inherently subject to significant technical, business, economic, competitive, political and social uncertainties and contingencies and involve known and unknown risks and uncertainties that could cause actual events or results to differ materially from estimated or anticipated events or results reflected in such forward‐looking statements.
Xanadu disclaims any intent or obligation to update publicly or release any revisions to any forward‐looking statements, whether as a result of new information, future events, circumstances or results or otherwise after the date of this Announcement or to reflect the occurrence of unanticipated events, other than required by the Corporations Act 2001 (Cth) and the Listing Rules of the Australian Securities Exchange (ASX) and Toronto Stock Exchange (TSX). The words ‘believe’, ‘expect’, ‘anticipate’, ‘indicate’, ‘contemplate’, ‘target’, ‘plan’, ‘intends’, ‘continue’, ‘budget’, ‘estimate’, ‘may’, ‘will’, ‘schedule’ and similar expressions identify forward‐looking statements.
All ‘forward‐looking statements’ made in this Announcement are qualified by the foregoing cautionary statements. Investors are cautioned that ‘forward‐looking statements’ are not guarantee of future performance and accordingly investors are cautioned not to put undue reliance on ‘forward‐looking statements’ due to the inherent uncertainty therein.
For further information please visit the Xanadu Mines’ Website at www.xanadumines.com.
Appendix 3: Red Mountain Table 1 (JORC Code, 2012)
Set out below is Section 1 and Section 2 of Table 1 under the JORC Code, 2012 for the Red Mountain project. Data provided by Xanadu. This Table 1 updates the JORC Table 1 disclosure dated 24 August 2022.5
1.1 JORC TABLE 1 - SECTION 1 - SAMPLING TECHNIQUES AND DATA
| Criteria | Commentary |
| Sampling techniques |
|
| Drilling techniques |
|
| Drill sample recovery |
|
| Logging |
|
| Sub -sampling techniques and sample preparation |
|
| Quality of assay data and laboratory tests |
|
| Verification of sampling and assaying |
|
| Location of data points |
|
| Data spacing and distribution |
|
| Orientation of data in relation to geological structure |
|
| Sample security |
|
| Audits or reviews |
|
1.2 JORC TABLE 1 - SECTION 2 - REPORTING OF EXPLORATION RESULTS
(Criteria in this section apply to all succeeding sections).
| Criteria | Commentary |
| Mineral tenement and land tenure status |
|
| Exploration done by other parties |
|
| Geology |
|
| Drill hole Information |
|
| Data Aggregation methods |
|
| Relationship between mineralisation on widths and intercept lengths |
|
| Diagrams |
|
| Balanced Reporting |
|
| Other substantive exploration data |
|
| Further Work |
|
1.3 JORC TABLE 1 - SECTION 3 ESTIMATION AND REPORTING OF MINERAL RESOURCES
Mineral Resources are not reported so this is not applicable to this report.
1.4 JORC TABLE 1 - SECTION 4 ESTIMATION AND REPORTING OF ORE RESERVES
Ore Reserves are not reported so this is not applicable to this report.
1 ASX Announcement 30 June 2016 - Further High-Grade Gold Intercepts at Oyut Ulaan
2 ASX Announcement 28 June 2017 – Oyut Ulaan Exploration Update: Strong Drill Results Across the District
3 ASX Announcement 30 June 2016 - Further High-Grade Gold Intercepts at Oyut Ulaan
4 ASX Announcement 28 June 2017 – Oyut Ulaan Exploration Update: Strong Drill Results Across the District
5 ASX/TSX Announcement 24 August 2022 – Exploration Ramps Up at Red Mountain
A PDF accompanying this announcement is available at: http://ml.globenewswire.com/Resource/Download/6825ff79-95de-4b6b-a4cd-e975c617cb60
