Tombill Encounters Mineralization in Ongoing Near-Surface Drilling and Provides Comprehensive Review of Results from its 2021 Drill Program
Tombill Encounters Mineralization in Ongoing
Near-Surface Drilling and Provides
Comprehensive Review of Results from its
2021 Drill Program
Toronto, Ontario and Geraldton, Ontario--(Newsfile Corp. - May 25, 2022) - Tombill Mines
Limited (TSXV: TBLL) (OTCQB: TBLLF) (the "Company", "Tombill"), is pleased to provide an update on
its 2022 near-surface Phase 2A Diamond Drilling Program designed to comprehensively test a series of
newly identified targets across its 100% controlled namesake project which encompasses our 4 mineral
properties, including 2 past-producing mines, in the Geraldton gold mining district, north-central Ontario,
Canada. The Company recently received additional assays from its 2021 diamond drill program for
which it provides a complete review below.
Highlights of Current Phase 2A 2022 Near-Surface Drilling Program to Date
Drilling commenced mid-April; Forage FTE Drilling is the contractor for the program.
Holes TB22-002 and TB22-005 targeting the Ellis Syncline gold target situated in the north- central
portion of the Tombill Main Group property have encountered significant hydrothermal alteration
with associated silica-sulfide veining across a broad, isoclinally folded syncline encompassing
greywacke, iron formation and albite porphyry, very similar lithologies to those found at the open-pit
mine development project of Greenstone Gold Mines ("Greenstone") located a few kilometers to
the east.
Hole TB22-005, which tests the southern half of the target, passed through an approximately 50 m
wide zone of continuous, visually impressive sulphide mineralization in the form of disseminated
and stringer pyrite hosted by banded iron formation and lesser greywacke. Somewhat weaker
pyrite mineralization continues below the main alteration zone which starts 170 m down-hole.
Hole TB22-002 which tests the Ellis Syncline target about 400 m east of hole TB22-005
intersected thinly layered greywacke and banded iron formation intruded by two thick bodies of
albite porphyry showing varying intensities of sericite and hematite alteration, foliation and
disseminated pyrite mineralization. Quartz stringers are abundant in the deformed iron formation.
Styles of rock alteration and mineralization resemble those seen in other deposits in the Geraldton
district, including at the nearby Hardrock deposit currently being developed by Greenstone into one
of Canada's largest gold mines.
Half-core samples generally 1.0 m in length are being collected and sent for fire assaying at the
Actlabs analytical facilities in Geraldton, Ontario.
Drilling is also planned for the claim group where the past-producing Tombill gold mine is located.
Between 1938 and 1942 this mine produced 68,737 oz gold at an average grade of 12.36 g/t Au.
The bulk of gold resources presently known in the Geraldton district are defined around the old
underground workings of the district's 10 past-producing mines.
To date, Tombill has completed 1,823 m of diamond drilling in five holes and is drilling an
additional three holes encompassing approximately 1,200 m, expected to be completed by early
June.
"We are delighted to see early indications of a large-scale hydrothermal system at the Ellis Syncline
target, one of several near-surface targets we recently identified across the Tombill Main Group,"
commented Ron Burk, Strategic Advisor & Head of Exploration & Geology, "The style of mineralization
observed in recent holes, especially hole TB22-005, bears similarities to the mineralization forming the
gold zones that constitute the Hardrock gold deposit being developed by Greenstone to the east. Given
the robust length of alteration and veining observed in this hole, we are eager to see what assays bring."
Phase 2A Near-Surface Drilling Program at Tombill Main Group
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Drill Hole Coordinates for Tombill Main Group Shallow Program 2022
Hole ID
Collar
Azimuth
Collar Dip
Length(m)
Easting
Northing
Elevation(m)
TB22-001
180
-45
21.0
501490
5503943
334.0
TB22-001A
180
-52
385.0
501499
5503943
334.0
TB22-002
350
-45
357.0
500198
5503696
334.0
TB22-003
355
-45
300.0
500493
5503781
334.0
TB22-004
20
-45
351.0
499755
5503907
340.0
TB22-005
20
-52
433.0
499734
5503713
345.0
TB22-006
8
-45
351.0
499142
5503957
345.0
TB22-007
20
-55
*400.0
499627
5503729
345.0
TB22-008
30
-45
*350.0
493730
5505580
355.0
*Proposed length of drill hole
Comprehensive Review of 2021 Talmora & F-Zone Diamond Drill Results
Deep Drilling Targeting Extensions of the F-Zone
In 2021, Tombill undertook a deep diamond drilling program to test for the extension of the F-Zone, a
major gold ore zone that plunges roughly 20 degrees westward from Greenstone's Hardrock deposit
onto the Tombill Main Group property.
Holes TB21-005A, -005B and -005E, three wedged holes from parent-hole TB21-005 which was
collared approximately 280 m west of the eastern property boundary, all encountered strong intervals of
gold mineralization including:
TBL21-005A
6.03 g/t Au over 13.3 m
Within a 30.5 m long interval averaging 2.96 g/t Au, and
A second interval of 5.04 g/t Au over 3.0 m
TB21-005B
-
4.31 g/t Au over 6.0 m
-
Within a 25.0 m long interval averaging 1.20 g/t Au
TB21-005E
-
5.29 g/t Au over 8.0 m
-
Within a 15.0 m long interval grading 3.24 g/t Au
-
A second interval of 13.1 g/t Au over 2.0 m
-
Within an interval of 11.0 m averaging 4.12 g/t Au
-
A third interval of 24.13 g/t Au over 1.0 m
-
Within a zone 3.0 m wide grading 8.52 g/t Au
Gold intercepts from these three holes are considered by Tombill to be equally robust as typical
intersections of the F-Zone on the adjacent Greenstone mine property, and consequently provide strong
evidence that the F-Zone remains intact and well-mineralized on Tombill's Main Group claims.
Drilling in the area immediately west of the eastern boundary of Tombill's Main Group property
encountered complex geology including post-mineral faulting and post-mineral mafic dikes.
Consequently, holes TB21-001 through TB21-004 failed to produce adequate tests of the F-Zone but did
encounter short intervals of significant gold mineralization in the general vicinity of the intended target
(see table below).
Hole TB21-008, the furthest west drill-hole of the deep drilling program and 580 m west of our eastern
property boundary, is believed to have passed just below the targeted F Zone, encountering six short
intervals of gold mineralization (see table below).
Significantly, at depth this hole passed through 93 m of
sericite-altered, anomalously gold-bearing albite porphyry interpreted to be the anticlinally folded
Hardrock Porphyry
, an intrusive rock mass which is spatially and perhaps genetically associated with
important ore zones in Hardrock gold deposit situated a few kilometers to the east.
In spite of failing to
intersect robust F-Zone mineralization, the multiple gold intercepts and the weakly mineralized intrusive
porphyry encountered in TB21-008 suggest the targeted gold system extends at least a further 300 m
west of holes TB21-005A, 005B and -005E, or 580 m from our property boundary.
F-Zone & Associated Zones 2021 Intercepts & Grades
(
Assays in italics are newly reported
intervals)
Hole ID
From (m)
To (m)
Length (m)
Gold (g/t)
TB21-001A
1191.0
1192.0
1.0
6.03
TB21-002
768.0
769.0
1.0
4.21
1203.0
1203.8
0.8
6.90
TB21-004
757.7
758.7
1.0
5.29
1242.4
1246.8
4.4
2.40
Including
1242.4
1244.5
2.1
4.50
TB21-005A
1018.5
1022.7
4.2
2.00
1078.0
1081.5
3.5
2.05
1083.0
1113.5
30.5
2.96
Including
1095.0
1108.3
13.3
6.03
Including
1095.0
1096.0
1.0
53.0
1160.0
1163.0
3.0
5.04
Including
1162.0
1163.0
1.0
13.2
1241.0
1243.1
2.1
2.75
1248.0
1250.7
2.7
2.85
TB21-005B
1195.0
1220.0
25.0
1.20
Including
1211.0
1217.0
6.0
4.31
Including
1214.0
1218.1
4.1
5.53
Including
1216.0
1218.1
2.1
11.23
TB21-005E
1071.0
1088.0
17.0
1.47
Including
1085.0
1087.0
2.0
6.08
1099.0
1101.0
2.0
2.44
1102.0
1117.0
15.0
3.24
Including
1102.0
1110.0
8.0
5.29
1128.5
1139.0
10.5
1.52
Including
1132.0
1139.0
7.0
2.00
1146.0
1157.0
11.0
4.12
Including
1152.0
1153.0
1.0
22.63
Including
1152.0
1154.0
2.0
13.10
1162.0
1165.0
3.0
8.52
Including
1164.0
1165.0
1.0
24.13
1193.0
1206.0
13.0
1.37
TB21-008
943.0
946.0
3.0
1.75
1107.0
1110.0
3
1.35
1122.0
1125.0
3
1.94
1163.0
1166.0
3
2.25
1197.0
1199.0
2
2.84
1225.0
1227.0
2
1.93
F Zone Long Section View of Deep Drilling 2021
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Drill Hole Coordinates for F-Zone Program 2021
Hole ID
Collar
Azimuth
Collar Dip
Length
(m)
NAD83-Z16
Easting
NAD83-Z16
Northing
Elevation
(m)
TB21-001
356.1
-81.8
1218.5
500,987
5,502,807
341.0
TB21-001A
356.1
-70.0
1220.0
500,987
5,502,807
341.0
TB21-002
356.0
-82.0
1452.0
501,048
5,502, 609
339.0
TB21-003
12.2
-82.0
882.0
501,072
5,502,888
341.0
TB21-004
01.0
-82.0
1391.3
501,048
5,502,609
341.0
TB21-004A
01.0
-60.0
1289.8
501,048
5,502,609
341.0
TB21-005
359.0
-85.0
875.0
500,909
5,502,915
340.0
TB21-005A
359.0
-85.0
1331.0
500,909
5,502,915
340.0
TB21-005B
359.0
-85.0
1259.0
500,909
5,502,915
340.0
TB21-005E
359.0
-85.0
1238.4
500,909
5,502,915
340.0
TB21-008
356.0
-84.0
1384.0
500,629
5,502,878
340.0
Shallow Drilling at the Talmora Mine Target
In Q4 2021, Tombill Mines undertook a three-hole, near-surface drilling program at the Talmora Mine
target in the northeastern part of our Tombill Main Group. The former Talmora Longlac mine, with a 534-
foot-deep shaft and minor underground development on two levels, produced less than 1,500 oz gold in
the early 1940's.
All three holes yielded multiple intervals of gold mineralization (see below). Of particular
note, holes TAL21-001 and TAL21-002 encountered scatterings of gold mineralization over appreciable
lengths, from 27 to 220 m in the former and from 55.5 to346 m in the latter. Notable mineralized
intercepts include:
7.57 g/t Au over 2.0 m within a 5.5 m interval averaging 3.37 g/t Au in hole TAL21-001, and
1.65 g/t Au over 11.5 m in hole TAL21-002.
Tombill takes the view that the robust anomalism for gold encountered over long lengths in these holes is
a promising indication of proximity to a larger mineralized system. Therefore, more consideration is
being given to further work at the Talmora target.
Talmora 2021 Shallow Intercepts & Grade
(Assays in italics are newly reported intervals)
Hole ID
From (m)
To (m)
Length (m)
Gold (g/t)
TAL21-001
27.0
30.0
3.0
0.35
51.0
54.0
3.0
0.73
80.0
81.0
1.0
1.02
104.0
107.5
3.5
1.35
including
106.0
107.5
1.5
2.50
117.5
118.5
1.0
1.25
133.0
138.5
5.5
3.37
including
133.5
135.5
2.0
7.57
150.0
152.0
2.0
0.68
217.0
220.0
3.0
4.63
including
218.5
220.0
1.5
6.88
TAL21-002
55.5
56.5
1.0
2.73
including
56.0
56.5
0.5
4.02
90.0
94.0
4.0
0.54
including
90.0
91.0
1.0
0.98
103.3
105.0
1.7
1.43
including
104.5
105.0
0.5
3.35
140.5
144.5
4.0
0.52
including
144.0
144.5
0.5
1.47
154.5
166.0
11.5
1.65
including
160.0
161.5
1.5
4.07
188.5
189.5
1.0
3.04
including
188.5
189.0
0.5
4.23
270.0
270.5
0.5
2.84
270.5
271.0
0.5
2.84
282.0
283.0
1.0
0.88
292.0
292.5
0.5
2.98
344.0
346.0
2.0
2.21
including
345.0
346.0
1.0
3.66
TAL21-003
170.5
172.0
1.5
1.05
215.0
216.0
1.0
1.42
224.0
226.0
2.0
1.76
including
224.5
225.0
0.5
5.36
376.0
377.0
1.0
0.89
The presence of economically significant zones of shallow gold mineralization has clearly not been
thoroughly tested over most of the Tombill Main Group. The current Phase 2A Drilling Program plus the
programs completed in 2021 are the first drilling in four decades on the property and have been focused
on making a new discovery in this long-lived and productive gold mining district.
Drill Hole Coordinates for Talmora Program 2021
Hole ID
Azimuth
Dip
Length(m)
NAD83-Z16
Easting
NAD83-Z16
Northing
Elevation(m)
TAL21-001
350.0
-45
308.0
501604.9
5504086
331.4
TAL21-002
334.0
-45
395.0
501607.0
5504086
335.0
TAL21-003
318.0
-45
443.0
501560.3
5504062
335.0
Talmora Long Section View Looking West 2021
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Qualified Person
Ron Burk, P.Geo, is the Company's designated Qualified Person for this news release within the
meaning of National Instrument 43-101 Standards of Disclosure for Mineral Projects and has reviewed
and approved its scientific and technical content.
QA/QC
Assays were performed at Actlabs accredited lab in Geraldton, Ontario. Tombill geologists insert blanks
and standards into the sample stream at a rate of at least 2 per 25 core samples. A chain of custody is
maintained to the assay lab. At present, the true widths of the mineralized intercepts have not been
calculated.
About FTE
Founded 1987, Forage FTE Drilling specializes in a variety of drilling services in Canada, Africa, and
South America. Renowned for the quality of its work, FTE Drilling ensures an unmatched response time
in a safe and environmentally friendly workplace.
They have recently drilled in the Geraldton district.
About Tombill
Founded 1935, by Newmont Mining and prospectors' 'Tom' and 'Bill' Johnson, Tombill (TSXV: TBLL)
(OTCQB: TBLLF) owns 2 of the 10 past-producing mines in the Geraldton gold corridor, 4 claim groups,
of which 3 are situated in the Geraldton gold district of north-central Ontario (about 225 km NE of
Thunder Bay).
Geraldton offers optimal and installed infrastructure.
Holdings comprise 74 royalty-free
mining claims (60 fully owned patented claims, 5 leases, 9 mineral rights only). Of these, the 51-patented
claim Main Group is in the center of the Geraldton Gold District and straddles the Trans-Canada
Highway; the 5-claim Ellis Group lies 4 km south of the town of Geraldton; and the original Tombill Mine
group of 6-patented claims sits 10 km west-southwest of Geraldton. The Tombill Gold Mine produced
68,737 high-grade gold oz between 1938 and 1942 in the southeast corner of the claim group. The
Talmora Longlac Mine, located in the northeast of the Main Group property, was built in 1941, but saw
only minor production before closing in 1942 (1,406 gold oz). The Main Group borders on the property of
the under-construction Greenstone Mine, which will be one of Canada's largest gold mines with
production aimed for 2024.
Tombill Property Location Map
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For more information, please visit
www.tombillmines.com
, and contact:
Georgia Bevan
Investor Relations
Email:
Tel: +1 647 493 8270