Japan Gold Continues to Drill High Grade Intercepts at Ryuo and Expands the Prospect Area
Japan Gold Continues to Drill High Grade
Intercepts at Ryuo and Expands the Prospect
Area
Vancouver, British Columbia--(Newsfile Corp. - October 11, 2022) -
Japan Gold Corp. (TSXV: JG)
(OTCQB: JGLDF)
("
Japan Gold
" or the "
Company
") is pleased to announce results from seven
additional drill holes at the Ryuo Prospect. Drilling has continued to encounter high-grade veins along the
Ryuo alteration corridor, and interpretation of drill core has significantly advanced the understanding of
controls on mineralization at the prospect. The Ryuo prospect is located within the Company's 100%
owned Ikutahara Project in Hokkaido, (Figure 1).
Summary of High-Grade Intercepts,
(Figures 2-5 and Table 1)
:
IKDD22-005 has proven continuity of the Shouei vein 100 m to the southwest of the historical
workings with the following high-grade zone from within a broader mineralized vein structure:
0.75 m @ 22.5 g/t Au & 41.3 g/t Ag
from 276.0 m
IKDD22-002: proved continuity of mineralization 50 m below the 2021 drill intercept from IKDD21-
010 which intersected
20.0 m @ 6.3 g/t Au & 15.7 g/t Ag
, giving the following significant interval:
0.4 m @ 19. 0 g/t Au & 15.7 Ag
from 280.95 m
(Incl.
0.2 m @ 34.6 g/t Au & 25.0 g/t Ag
from 280.95 m)
IKDD22-007: targeted mineralization below IKDD21-008 which intersected the ultra-high-grade
interval of
0.45 m @ 1,395 g/t Au & 768 g/t Ag
. From approximately 200 m down hole IKDD22-
007 encountered highly silicified and altered hydrothermally brecciated rhyolite cut by numerous
banded quartz veins. The drill hole stopped in mineralization well short of its target depth under
difficult drilling conditions and due to a temporary expiry of a local forestry permit, with the following
significant intervals:
1.1m @ 2.9 g/t Au & 11.7 g/t Ag
from 266.8 m
(incl.
0.35 m @ 7.0 g/t Au @ 22.1 g/t Ag
from 267.25 m
0.4 m @ 12.8 g/t Au & 35.3 g/t Ag
from 288.4 m
(incl.
0.2 m @ 23.7 g/t Au & 74.7 g/t Ag
from 288.6 m)
Andrew Rowe, Vice President Exploration stated,
"We are very encouraged by the recent findings at
the Ryuo prospect. The combination of multiple high-grade vein structures with high-level vein
textures and a well-preserved alteration system supports deeper drilling, particularly along strike to the
southwest of the prospect. We look forward to completing another round of drill holes to test these
concepts before the end of this year."
Summary of Findings at Ryuo and the Implications for Ongoing Exploration:
The 2022 drill program has significantly advanced the understanding of geological controls and
alteration zonation with respect to high-grade mineralization at Ryuo. Importantly, high-grade gold events
have been identified along the length of the prospect in multiple parallel vein zones, and alteration
studies prove the system is well preserved.
IKDD22-005 has proven an extension of the Shouei vein mineralization 100 m to the southwest. Further
step out drilling is required to confirm strike continuity to depth below veining intersected in the top of drill
hole IKDD21-005, and towards the open high-grade mineralization intersected 400 m to the southwest in
drill holes IKDD21-008 and IKDD22-007, (Figure 2 & 3).
IKDD22-007 targeting the depth extension of the ultra high-grade vein in IKDD21-008 (
0.45 m @ 1,395
g/t Au & 768 g/t Ag
) terminated more than 100 m before target depth under difficult drilling conditions
and due to a temporary expiry of a local forestry permit. From 200 m down-hole, intensely altered and
hydrothermally brecciated rhyolite was drilled to the bottom of the hole at 289.4 m. Numerous banded
quartz veins cut the brecciated rhyolite carrying anomalous gold along its length, with higher grade
intervals including the 40 cm vein from the bottom of the hole which gave
12.8 g/t Au & 35.5 g/t Ag
with
a high-grade included interval of
23.7g/t Au & 64.7 g/t Ag
(Figure 4). This breccia zone was unexpected
and appears to be part of a significant, partially tested mineralized structure which subsequent drilling
will target as a priority.
Hydrothermal alteration of the host rocks in low-sulphidation epithermal vein systems create a distinct
zonal arrangement of clay minerals. Smectite dominant assemblages form above and peripheral to
quartz veining, while a mixed-layer (illite-smectite) assemblage forms in the upper parts of the gold-
bearing vein zone, this progresses downward into a chlorite-illite dominant assemblage which coincides
with the boiling-zone where high-grade gold deposition occurs. This association of clay zonation and
gold mineralization has been well documented in literature, including at the Hishikari mine in Kyushu
2
.
The upper part of this zonal arrangement of clay alteration has been interpreted from spectral analysis of
drill core along the length of the Ryuo prospect. A smectite dominant zone is defined above and adjacent
to higher grade veins, and a mixed-layer zone is interpreted from an illite+smectite dominant
assemblage, associated with most of the high-grade veining seen to date, (Figures 3 & 4). The deeper
chlorite-illite assemblage has not yet been recognized at Ryuo indicating the epithermal system is
preserved and that the main high-grade boiling zone lies at depth. Additionally, the smectite / mixed-
layer interface at Ryuo deepens or plunges to the southwest of the prospect. Similarly, the top of the
rhyolite dome complex also lies deeper in the southwest of the alteration corridor, (Figure 4). Ongoing
drilling will focus on targeting the deeper portions of the Ryuo hydrothermal system for high-grade
mineralization associated with in the chlorite-illite zone.
Ryuo Prospect
The Ryuo Prospect consists of five areas of workings; Jinja, Shouei, Taisei, Ryuei and Buryu that were
developed along a 1.2 km long, open ended trend of alteration and mineralization prior to the
government-imposed closure in 1943 (Figure 2). Historical underground sampling in the Jinja vein
workings revealed high-grade gold-silver mineralization including 'level 4' of the workings, which was
sampled along a
72 m strike length giving an average grade of 40.8 g/t Au and 193 g/t Ag
, with an
average vein width approximately 0.5 m. Figure 3 illustrates a long-section of the Jinja vein workings with
the underground sampling reported by the Metal Mining Agency of Japan (MMAJ)
1
.
New Accepted Prospecting Rights Applications at the Ikutahara Project
Eleven new prospecting rights were lodged to cover prospective Miocene volcanics immediately to the
north and west of the Ryuo prospect to ensure coverage of potential strike and parallel extension to the
Ryuo mineralization. The new applications comprising a total of 2,567 hectares have now been
accepted by the Ministry of Economy Trade and Industry (METI) Hokkaido, (Figure 1).
Table 1
: Significant Mineralized Intercepts for IKDD22-001 to IKDD22-007
Drill Hole Number
From (m)
To (m)
Length (m)
Au (g/t)
Ag (g/t)
IKDD22-001
161.35
161.50
0.15
2.6
22.3
193.70
194.15
0.45
4.0
14.6
incl.
193.70
193.95
0.25
6.6
18.0
360.80
361.15
0.35
1.2
1.3
390.00
390.25
0.25
4.2
10.0
IKDD22-002
164.50
164.60
0.10
4.3
2.4
233.65
233.80
0.15
13.1
8.4
280.95
281.35
0.40
19.0
15.7
incl.
280.95
281.15
0.20
34.6
25.0
IKDD22-003
198.45
199.35
0.90
1.1
1.2
IKDD22-004
No Significant Intersections
IKDD22-005
276.00
276.75
0.75
22.50
41.30
IKDD22-006
253.55
253.90
0.35
2.10
6.10
309.20
309.40
0.20
1.50
1.40
IKDD22-007
245.45
245.65
0.20
4.60
7.40
266.80
267.90
1.10
2.90
11.70
incl.
266.95
267.60
0.65
4.50
14.70
incl.
267.25
267.60
0.35
7.00
22.10
285.60
286.40
0.80
2.50
19.40
incl.
286.00
286.25
0.25
4.40
24.10
288.40
288.80
0.40
12.80
35.30
incl.
288.60
288.80
0.20
23.70
64.70
Table 2
: Ryuo Prospect Drill Hole Data
Drill Hole
Number
Location
Easting
Northing
RL
Azimuth
Dip
Length
IKDD22-001
Buryu
700306.89
4872705.56
214.00
295
-40
683.00
IKDD22-002
Jinja
700367.00
4873243.00
199.00
0
-35
358.50
IKDD22-003
Shouei
700396.00
4873412.00
192.00
143
-50
307.30
IKDD22-004
Jinja
700367.00
4873243.00
199.00
350
-35
336.00
IKDD22-005
Taisei
700396.00
4873412.00
192.00
160
-41
418.80
IKDD22-006
Jinja
700367.00
4873243.00
199.00
13
-40
495.00
IKDD22-007
Ryuei
700307.31
4872792.21
216.00
325
-40
289.40
TOTAL
2,888.00
Reference
1
Metal Mining Agency of Japan, March 1990, Geological Survey Report for Fiscal Year 1989,
Northern Hokkaido Area B-Metalliferous Deposits
Overview
.
2
Eiji Izawa et.al. 1990. The Hishikari Gold Deposit: high-grade epithermal veins in Quaternary volcanics of southern Kyushu Japan.
Journal of
Geochemical Exploration
, 36 (1990) pp 1-56
On behalf of the Board of Japan Gold Corp.
"John Proust"
Chairman & CEO
Qualified Person
The technical information in this news release has been reviewed and approved by Japan Gold Vice
President of Exploration and Country Manager, Andrew Rowe, BAppSc, FAusIMM, FSEG, who is a
Qualified Person as defined by National Instrument 43-101.
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. The drilling program was fully supervised by Company senior
geologists 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 Ikutahara Village, located centrally within the
project area. The drill core was carefully logged, photographed and sample intervals marked-up along
predicted mineralized and selected unmineralized intervals by Japan Gold KK senior project
geologists and VP Exploration.
Sample lengths varied from 0.15 to 1.0 m; depending on the positions of geological contacts and
variations in vein texture and 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 kg 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, pulverised and assayed for gold 50 g 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).
Certified Reference Materials (CRMs) were inserted by Japan Gold KK 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.
Note on spectral analysis for identification of clay assemblages from drill core: ALS laboratories
provides a spectral analysis of coarse sample material using TerraSpec® 4 HR and aiSIRIS™ expert
spectral interpretation. Mineral assemblages are provided related to project geology. Spectral
analysis used herein is interpretive for mixed layer species and used as a guide, more definitive XRD
(X-Ray Diffraction) analysis are currently being undertaken to accurately identify clay species and
subsequent alteration zonation for more accurate interpretations.
About Japan Gold Corp.
Japan Gold Corp
. is a Canadian mineral exploration company focused solely on gold exploration
across the three largest islands of Japan: Hokkaido, Honshu and Kyushu. The Company has a country-
wide alliance with
Barrick Gold Corporation
to jointly explore, develop and mine certain gold mineral
properties and mining projects. The Company holds a portfolio of 31 gold projects which cover areas
with known gold occurrences, a history of mining and are prospective for high-grade epithermal gold
mineralization. Japan Gold's leadership team represent decades of resource industry and business
experience, and the Company has an operational team of geologists, drillers and technical advisors with
experience exploring and operating in Japan. More information is available at
www.japangold.com
or by
email at
For further information please contact:
John Proust
Chairman & CEO
Phone: 778-725-1491
Email:
Website:
www.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 2022 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, 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 timing and granting of prospecting rights; 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.
Figure 1
: Ikutahara Project, new and existing prospecting rights and applications on simplified geology
with historical mines and workings.
To view an enhanced version of Figure 1, please visit:
https://images.newsfilecorp.com/files/5665/140103_57db67fc442739a5_001full.jpg
Figure 2
: Ryuo prospect, alteration map with historical workings and drill holes completed to date.
To view an enhanced version of Figure 2, please visit:
https://images.newsfilecorp.com/files/5665/140103_57db67fc442739a5_002full.jpg
Figure 3
: Ryuo Prospect, Jinja & Shouei veins cross section with geology, interpreted alteration and all
significant drill intersections to date.
To view an enhanced version of Figure 3, please visit:
https://images.newsfilecorp.com/files/5665/140103_57db67fc442739a5_003full.jpg