Japan Gold - Barrick Alliance Continues to Encounter Significant Mineralized Intervals in Drilling at the Mizobe Project in Southern Kyushu
- Positive results from the drilling at the Barrick Alliance Mizobe Project indicate the presence of extensive mineralization.
- Encountering broad breccia-hosted intervals and multiple alteration events in the drilling core is a promising sign for the project.
- The project shows good scale and complexity, with similarities to high-grade epithermal deposits in the region.
- The company's focus on structural controls as a key mechanism for high-grade mineralization is a strategic move.
- The upcoming ground magnetics survey will further assist in mapping alteration and host rocks for future drill targeting.
- None.
Vancouver, British Columbia--(Newsfile Corp. - February 29, 2024) - Japan Gold Corp. (TSXV: JG) (OTCQB: JGLDF) ("Japan Gold" or the "Company") is pleased to announce the second phase of drilling at the Barrick Alliance Mizobe Project in Southern Kyushu, Japan has further expanded the footprint of a largely concealed, multi-phase hydrothermal system with current dimensions of approximately 2.5 by 1.5 kilometres (see Figure 1).
The new drilling continues to encounter mineralized intervals on an open hydrothermal alteration system at Mizobe. Mineralization encountered in drilling is locally extensive with broad breccia-hosted intervals up to 144 metres in down-hole length (see Figure 2). Multiple alteration and mineralizing events are observed in the drill core including banded chalcedony-sulphide vein clasts, banded carbonate-quartz-sulphide veins (see Figure 3), and hydrothermal brecciation which has provided a permeability pathway and host for a younger gold-sulphide mineralization event. Banded chalcedony is a quartz vein texture that may represent the upper parts of epithermal vein systems, fragments of this banded chalcedony now incorporated into a younger mineralized hydrothermal breccia provide a vector towards potential deeper structure-controlled vein-style mineralization not yet identified.
"The dynamic nature of hydrothermal events seen in the drill core at Mizobe is very encouraging, particularly the banded quartz veins which are typical of high-grade epithermal deposits of the district, including the world-class Hishikari deposit, located 20 kilometres to the north. The hydrothermal system shows good scale and complexity, and interpretation of drill core is vectoring us towards a system with potentially significant gold endowment," commented Andrew Rowe, Japan Gold's Vice President of Exploration.
The second phase of drilling at Mizobe completed in Q4|23 comprised four diamond holes for a total of 1,271.3 metres. Based on the strong encouragement from the initial framework drill program completed earlier in 2023, drilling continued to target mineralization on large, up to 500 metres step-outs around the long-mineralized intercept in MZDD23-003, and beneath mineralized breccias located 1.5 kilometres to the west, at the historical Semari antimony workings.
Drill holes MZDD23-004, 005, 006 and 007 all encountered hydrothermal alteration with variable intervals of gold mineralization including the following notable results, all intervals are down-hole lengths, refer to Tables 1 and 2 for more detail.
- MZDD23-004
33.55 m @ 0.6 g/t Au & 3.1 g/t Ag from 28.3 m
incl: 16.7 m @ 0.8 g/t Au & 3.9 g/t Ag from 28.3 m ;
12.0 m @ 1.0 g/t Au & 4.5 g/t Ag from 33.0 m ;
4.0 m @ 1.6g/t Au & 8.9 g/t Ag from 36.5 m
- MZDD23-006
1.3 m @ 1.7 g/t Au & 2.2 g/t Ag from 50.7 m
incl: 0.8m @ 2.4 g/t Au & 3.4 g/t Ag from 50.7 m)
The Barrick Alliance sees the importance of structural controls as a key focusing mechanism for high-grade mineralization. The geometry of mineralization and controlling structures is not yet fully understood due to widespread concealment by a veneer of post-mineral ash. The next steps at Mizobe will include a detailed ground magnetics survey, currently underway, to assist in mapping alteration and host rocks toward the definition of gold-fertile structures for the next round of drill targeting.
Figure 1: Simplified Geological Map of the East Side of Mizobe Project with the Completed Drill Holes, Historical Drilling by the Metal Mining Agency of Japan and Rock Outcrop and Float Gold Geochemistry
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Figure 2: Simplified Geological Cross Section and Interpretive Model Through Drill Holes MZDD23-003 and MZDD23-004 with Significant Mineralized Intervals
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Figure 3: Core Samples from Drill hole MZDD23-004
Drill hole MZDD23-004: Banded chalcedony-carbonate-sulphide vein from 38.3 metres, part of 1.4 metre wide vein zone, assayed interval: 38.0 metres - 38.5 metres: Au 2.3 g/t; Ag 31.3 g/t
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Drill hole MZDD23-004: Banded carbonate-quartz-sulphide vein from 38.8 metres, part of 1.4-metre-wide vein zone, assayed interval: 38.5 metres - 39.0 metres: Au 1.5 g/t; Ag 11.8 g/t
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Drill hole MZDD23-004: Carbonate-quartz-sulphide vein with fine-grained colloform sulphide infil, assayed interval: 41.5 metres - 42.0 metres: Au 0.7 g/t; Ag 0.1 g/t
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Drill hole MZDD23-004: Hydrothermal breccia incorporating angular clasts of finely laminated colloform banded chalcedony, potentially to have been brought up from depth by a hydrothermal brecciation event, assayed interval 45.0 metres - 45.5 metres: Au 0.4 g/t; Ag 4.9 g/t
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Mizobe Project
The Mizobe Project is located 20 kilometres south of the world-class Hishikari gold mine in the Hokusatsu Region of Southern Kyushu. The Hishikari mine has produced 8.49 million ounces of gold at a grade of more than 20 g/t since 19851. The Hokusatsu Region is Japan's largest gold-producing district, with more than 12 million ounces of combined production from low-sulphidation epithermal deposits1-5. Japan Gold holds a large portion, more than 90,000 hectares of prospective ground within the Hokusatsu Region as prospecting rights or reserved as prospecting rights applications.
Table 1: Significant Drill Hole Intersections from Initial Framework and Phase 2 Drilling at Mizobe
| Drill Hole Number | From (m) | To (m) | Length (m) | Au (g/t) | Ag (g/t) |
| MZDD23-001 | 345.00 | 347.00 | 2.00 | 0.9 | 5.5 |
| incl. | 345.00 | 346.00 | 1.00 | 1.1 | 2.9 |
| MZDD23-002 | 126.70 | 132.80 | 6.10 | 1.4 | 7.5 |
| incl. | 126.70 | 129.30 | 2.60 | 2.2 | 10.6 |
| MZDD23-003 | 47.00 | 191.00 | 144.00 | 0.7 | 2.1 |
| incl. | 47.00 | 100.75 | 53.75 | 0.6 | 2.3 |
| incl. | 77.50 | 86.50 | 9.00 | 1 | 4.1 |
| incl. | 122.75 | 191.00 | 68.25 | 0.9 | 2.1 |
| incl. | 122.75 | 138.75 | 16.00 | 2.8 | 4.5 |
| incl. | 122.75 | 132.75 | 10.00 | 4.3 | 6.6 |
| incl. | 124.75 | 128.75 | 4.00 | 6.2 | 10.2 |
| MZDD23-004 | 28.30 | 61.85 | 33.55 | 0.6 | 3.1 |
| incl. | 28.30 | 45.00 | 16.70 | 0.8 | 3.9 |
| incl. | 33.00 | 45.00 | 12.00 | 1.0 | 4.5 |
| incl. | 36.50 | 40.50 | 4.00 | 1.6 | 8.9 |
| MZDD23-005 | 180 | 181 | 1.00 | 0.5 | 3.7 |
| MZDD23-005 | 331.00 | 332.00 | 1.00 | 0.8 | 1.9 |
| MZDD23-006 | 50.70 | 52.00 | 1.30 | 1.7 | 2.2 |
| incl. | 50.70 | 51.50 | 0.80 | 2.4 | 3.4 |
| MZDD23-007 | 150.20 | 151.00 | 0.80 | 0.9 | 2.8 |
| MZDD23-007 | 173.3 | 174.3 | 1.00 | 0.7 | 4.2 |
| MZDD23-007 | 174.30 | 175.20 | 0.90 | 0.7 | 3.8 |
Table 2: Drill Hole Collar Data
| Drill Hole Number | Location | Easting | Northing | RL | Azimuth | Dip | Length (m) | |
| MZDD23-004 | Mizobe East | 660676 | 3519299 | 177 | 138 | 50 | 132.5 | |
| MZDD23-005 | Mizobe East | 660210 | 3519654 | 266 | 138 | 50 | 341.0 | |
| MZDD23-006 | Mizobe East | 659139 | 3520150 | 189 | 123 | 50 | 354.5 | |
| MZDD23-006A | Mizobe East | 659198 | 3520109 | 98 | 126 | 51.6 | 37.6 | |
| MZDD23-007 | Mizobe East | 660845 | 3519889 | 210 | 113 | 50 | 405.7 | |
| TOTAL | 1,271.3 | |||||||
References
1 Sumitomo Metal Mining Co., LTD. Integrated Report, September 2023
2 Watanabe Y, 2005. Late Cenozoic evolution of epithermal gold metallogenic provinces in Kyushu, Japan. Mineralium Deposita (2005) 40: pp 307-323
3 Garwin, S.G. et al. 2005. Tectonic setting, Geology, and gold and copper mineralization in the Cenozoic magmatic arcs of Southeast Asia and the West Pacific. Economic Geology 100th Anniversary Vol. pp 891-930
4 Shikazono, N. 2003. Geochemical and Tectonic Evolution of Arc-Backarc Hydrothermal Systems, Volume 1. Elsevier, 2003
5 Metal Mining Agency of Japan, June 2001, Regional Geological Structure Survey Report for Fiscal Year 2000, Hokusatsu, Kushikino District
Sampling Techniques and Assaying
The drilling results discussed in this news release are from drill core samples obtained by PQ, HQ and NQ-size triple-tube diamond core drilling using a PMC700 and PMC-400 man-portable drill rigs owned and operated by the Company. Company senior geologists fully supervised the drilling program at the drilling site.
Drill core was collected in plastic core trays at the drill site and transported by road in Company vehicles to its core shed storage facility in the nearby Urushi Village, near the project area. The drill core was carefully logged, photographed and sample intervals were marked-up along predicted mineralized and selected unmineralized intervals by Japan Gold senior project geologists.
Sample lengths varied from 0.25 to 1.0 metres; depending on the positions of geological contacts and variations in alteration composition. The core was split by diamond rock saw supervised by project geologists. Half-core sample was collected from the entire length of each designated sample interval and placed into individual-labelled, self-sealing calico bags for secure packaging and transport to the laboratory. The half-core samples weighed between 0.25 to 5 kilograms depending on the sample length and core size. A chain of custody was established between the Company and receiving laboratory to ensure the integrity of the samples during transportation from site to the lab. The samples were sent in batches to ALS Laboratories in Vancouver, Canada for sample preparation and assaying.
Samples were crushed, pulverized and assayed for gold 50 grams charge Fire Assay / AAS Finish (Au-AA24; 0.005 ppm lower detection limit) and a 48 multi-element by 4-acid digest with ICP-MS determination (ME-MS61L; Ag 0.002 ppm lower detection limit). Over-limit Au and Ag samples were re-assayed by fire-assay and gravimetric finish (GRA-22, LDL of 0.5 and 5 ppm for Au and Ag respectively).
Japan Gold KK inserted Certified Reference Materials (CRMs) at every 20th sample to assess repeatability and assaying precision of the laboratory. In addition, the laboratory applied its own internal Quality Control procedure that includes sample duplicates, blanks & geochemical standards. They report these results with the certified Assay Report. Laboratory procedures and QAQC protocols adopted are considered appropriate. The CRMs and internal QC-QA results fall within acceptable levels of accuracy & precision and are considered to lack any bias.
Rock results presented in this news release and accompanying figures are from 1 to 3 kilograms selected grabs of river float samples, and continuous chip-channel samples. The grab samples of float material reported in this announcement are believed to originate from the underlying bedrock of the drainage basin from which they were collected. The Company cautions that grab and float samples are selective by nature and may not be representative of typical mineralization on the property. Composited chip-channel samples have been collected continuously along exposures of bedrock at intervals between 0.5 to 1.5 metres. Sample preparation and assaying were done by ALS Perth, WA, Australia. Samples were crushed and pulverised and gold was analysed by 50 gram-charge Fire Assay and AAS finish. A 48 multielement analysis including silver was done by four-acid digest and ICP-MS determination.
A chain of custody was established between the Company and the receiving laboratory to ensure the integrity of the samples during transportation from the site to the lab. Japan Gold inserted Certified Reference Materials (CRMs) at every 20th sample to assess the repeatability and assaying precision of the laboratory. In addition, the laboratory applied its own internal Quality Control procedure that includes sample duplicates, blanks & geochemical standards. They report these results with the certified Assay Report. Laboratory procedures and QA|QC protocols adopted are considered appropriate. The CRMs and internal QA|QC results fall within acceptable levels of accuracy & precision and are considered to lack any bias.
Qualified Person
The technical information in this news release has been reviewed and approved by Japan Gold's Vice President of Exploration, Andrew Rowe, BAppSc, FAusIMM, FSEG, who is a Qualified Person as defined by National Instrument 43-101.
About Japan Gold Corp.
Japan Gold Corp. is a Canadian mineral exploration company solely focused on gold exploration across Japan. The Company holds a portfolio of over 3,000 square kilometres of prospecting applications and prospecting rights which cover areas with known gold occurrences, a history of mining and is prospective for high-grade epithermal gold mineralization. The Japan Gold leadership and operational team of geologists, drillers and technical advisors, have extensive experience exploring and operating in Japan.
Japan Gold has an alliance with Barrick Gold Corporation to jointly explore, develop, and mine certain gold mineral properties and mining projects with the potential to host Tier 1 or Tier 2 gold ore bodies.
On behalf of the Board of Japan Gold Corp.
John Proust
Chairman & CEO
For further information, please contact:
Brenda Dayton
Vice President, Corporate Communications
Phone: 604.417.7952
Email: bdayton@japangold.com
Cautionary Note
Neither the TSX Venture Exchange nor its Regulation Services Provider (as such term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release. This news release contains forward-looking statements relating to expected or anticipated future events and anticipated results related to future partnerships and the Company's 2024 gold exploration program. These statements are forward-looking in nature and, as a result, are subject to certain risks and uncertainties that include, but are not limited to, the timing and granting of prospecting rights; the Company's ability to convert prospecting rights into digging rights within the timeframe prescribed by the Mining Act; general economic, market and business conditions; competition for qualified staff; the regulatory process and actions; technical issues; new legislation; potential delays or changes in plans; working in a new political jurisdiction; results of exploration; the Company's ability to execute and implement future plans, arrange or conclude a joint venture or partnership; and the occurrence of unexpected events. Actual results achieved may differ from the information provided herein and, consequently, readers are advised not to place undue reliance on forward-looking information. The forward-looking information contained herein speaks only as of the date of this News Release. The Company disclaims any intention or obligation to update or revise forward‐looking information or to explain any material difference between such and subsequent actual events, except as required by applicable laws.
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FAQ
What are the dimensions of the hydrothermal system at the Barrick Alliance Mizobe Project?
What notable mineralization was encountered in the drilling at Mizobe?
What are the key findings from the second phase of drilling at Mizobe?
Who commented on the dynamic nature of hydrothermal events seen in the drill core at Mizobe?
What is the location of the Mizobe Project?
