Replacement Announcement - Durnings
Released
Released
Announcement PDF
11 January 2024
By e-lodgement
Replacement Announcement :
More Wide Lead-Zinc-Silver-Copper-Gold Intercepts at Durnings
Talisman Mining Ltd (ASX:TLM, Talisman or Company) refers to the Company’s announcement
dated 9 January 2024 “More Wide Lead-Zinc-Silver-Copper-Gold Intercepts at Durnings”
(“Announcement”) .
An updated version of the Announcement is attached, incorporating the following amendments:
•
•
Inclusion of additional JORC Table disclosures regarding:
o
Drilling procedures relating to diamond drilling at the Rip nTear Prospect; and
o
GAIP survey procedures at Durnings; and
An updated version of Figure 3, showing corrected geographical co-ordinate data.
Authorised for release by:
Alex Neuling
Company Secretary
1
11 January 2024 – Replacement of Announcement Dated 9 January 2024
More Wide Lead-Zinc-Silver-Copper-Gold Intercepts
at Durnings
Large new target identified from GAIP survey
Highlights:
•
Assay results received from additional Reverse Circulation (RC) drill-holes completed recently
at the Durnings Prospect, part of the 100%-owned Lachlan Project in NSW.
•
The drilling, which was designed to test Gradient Array Induced Polarisation (GAIP)
chargeability anomalies, resulted in the discovery of a significant mineralised zone prior to
Christmas:
DRRC0006 (reported 14 December 2023)
o
24m at 1.5% Pb, 15.6g/t Ag, 0.2% Zn, 0.02% Cu, 0.04g/t Au from 18m to 42m:
o
42m at 2.3% Pb, 25.3g/t Ag, 1.3% Zn, 0.09% Cu, 0.43g/t Au from 244m, including:
§
•
6m at 10.3% Pb, 126g/t Ag, 3.5% Zn, 0.4% Cu and 1.93g/t Au from 274m to 280m.
Assays have now been returned for holes DRRC0008 to DRRC0010, which intersected
significant zones of disseminated galena (lead) (Pb), silver (Ag), sphalerite (zinc) (Zn),
chalcopyrite (copper) (Cu) and gold (Au) in sulphide-rich altered volcanic rocks:
DRRC0008
o
28m at 0.4% Pb, 7.8g/t Ag, 0.7% Zn, 0.02% Cu, 0.11g/t Au from 4m to 32m including:
§
o
10m at 0.5% Pb, 10.8g/t Ag, 1.8% Zn, 0.03% Cu, 0.15g/t Au from 22m to 32m
30m at 0.4% Pb, 2.7g/t Ag, 0.8% Zn, 0.01% Cu, 0.07g/t Au from 124m to 154m
DRRC0009
o
4m at 0.1% Pb, 14.1g/t Ag, 0.1% Zn, 0.77% Cu, 0.42g/t Au from 32m; and
o
6m at 0.5% Pb, 5.4g/t Ag, 0.7% Zn, 0.19% Cu, 0.29g/t Au from 72m:
DRRC0010
o
10m at 0.9% Pb, 7.1g/t Ag, 2.2% Zn, 0.04% Cu, 0.24g/t Au from 156m, and
o
10m at 0.4% Pb, 3.9g/t Ag, 0.7% Zn, 0.01% Cu, 0.39g/t Au from 232m.
•
Three of the six holes (DRRC0006, DRRC0010 and DRRC0011) were suspended in sulphide
mineralisation. These holes will be extended with diamond core drilling once the diamond drill
rig completes its current program at the nearby Rip n Tear prospect
•
A second, larger GAIP anomaly located ~800m further east to be tested by additional RC drilling
in the March Quarter.
1
Talisman Mining Limited (ASX: TLM, Talisman) is pleased to advise that it has received assay
results from the remaining Reverse Circulation (RC) holes drilled late last year targeting a GAIP
geophysical anomaly at the Durnings Prospect, part of its 100%-owned Lachlan Project in central
NSW.
Durnings is located approximately 15km south-east of Kingston Resources’ Mineral Hill Operations
and 25km north of Condobolin. It lies approximately 35km south-east of the Company’s Rip n Tear
discovery and is the fourth area to be tested as part of a 7,200m RC drilling campaign recently
completed at four priority prospects within the Lachlan Project area (see Figure 1).
Assays have now been received for RC holes DRRC0006 to DRRC0010, the initial RC holes drilled
at Durnings, where a 1,710m broad-spaced 6-hole RC drilling program was completed in late
November.
Figure 1 – Lachlan Project location plan highlighting prospect locations along the Canbelego-Mineral Hill Volcanic Belt.
2
Background
The Durnings Prospect is a lightly explored project defined by strongly anomalous base metal soil
geochemistry and contains two large, coherent conductive GAIP anomalies located along strike from
and to the east of previous RC drilling results returned from earlier exploration by Talisman Mining
(see ASX announcement 15 May 2023).
The prospect is situated within a complex structural setting associated with NNW trending faults
interpreted to be part of the Mineral Hill Fault Zone, which provides a pathway for mineralised fluids
to move upwards from deeper local granite intrusions.
Historical drilling at the Durnings Project includes Talisman drilling conducted from early 2023
(DRRC0001 to DRRC0005) and previous percussion drilling (KSRC0008 to KSRC0014). See Figure
2 for drill-hole locations.
Results from earlier RC drilling include:
•
DRRC0001
8m at 0.27% Pb, 6.3g/t Ag, 0.36% Zn, 0.77% Cu, 6.3g/t Au from 82m
•
DRRC0002
12m at 7.72g/t Ag from 74m
•
DRRC0003
8m at 15.98g/t Ag and 0.15g/t Au from 98m
•
DRRC0004
14m at 7.14g/t Ag and 0.22g/t Au from 64m
•
DRRC0005
10m at 5.52g/t Ag from 34m
Results
RC drilling totalling six holes for 1,710m was completed in late-November targeted at the western
GAIP anomaly. All six RC holes drilled at approximately 200m spacing were designed to target a
buried GAIP anomaly modelled to between 50m and 200m below surface.
RC drilling has intersected two broad zones of disseminated galena, silver, sphalerite, chalcopyrite
and gold associated with strong sulphide mineralisation in sericite altered volcaniclastic rocks.
Initial results for DRRC0006 and DRRC0007 were reported in mid-December (see ASX announcement 14
December 2023). Recent results include:
Southern Anomaly
DRRC0006
o
24m at 1.5% Pb, 15.6g/t Ag, 0.2% Zn, 0.02% Cu, 0.04g/t Au from 18m to 42m and;
o
42m at 2.3% Pb, 25.3g/t Ag, 1.3% Zn, 0.09% Cu, 0.43g/t Au from 244m to 286m end of hole
(eoh) including:
§
20m at 3.9% Pb, 45.2g/t Ag, 2.1% Zn, 0.16% Cu and 0.73g/t Au from 260m to 280m
§
6m at 10.3% Pb, 126g/t Ag, 3.5% Zn, 0.4% Cu and 1.93g/t Au from 274m to 280m.
DRRC0007
o
8m at 0.5% Pb, 2.1g/t Ag, 1.3% Zn, 0.02% Cu, 0.11g/t Au from 166m to 198m.
o
Assays pending
DRRC0011
3
Northern Anomaly
DRRC0008
o
28m at 0.4% Pb, 7.8g/t Ag, 0.7% Zn, 0.02% Cu, 0.11g/t Au from 4m to 32m including:
§
10m at 0.5% Pb, 10.8g/t Ag, 1.8% Zn, 0.03% Cu, 0.15g/t Au from 22m to 32m
o
30m at 0.4% Pb, 2.7g/t Ag, 0.8% Zn, 0.01% Cu, 0.07g/t Au from 124m to 154m
o
4m at 0.1% Pb, 14.1g/t Ag, 0.1% Zn, 0.77% Cu, 0.42g/t Au from 32m to 36m and;
o
6m at 0.5% Pb, 5.4g/t Ag, 0.7% Zn, 0.19% Cu, 0.29g/t Au from 74m to 80m:
o
10m at 0.9% Pb, 7.1g/t Ag, 2.2% Zn, 0.04% Cu, 0.24g/t Au from 156m to 166m and;
o
10m at 0.4% Pb, 3.9g/t Ag, 0.7% Zn, 0.01% Cu, 0.39g/t Au from 232m to 242m end of
hole.
DRRC0009
DRRC0010
•
Assays for DRRC0011 were submitted to the laboratory approximately 10 days after holes
DRRC0008 to DRRC0010 due to wet weather which hampered access to the drill site.
Results for this hole are expected within the next two weeks.
•
Three of the six holes (DRRC0006, DRRC0010 and DRRC0011) were suspended in sulphide
mineralisation at their various termination depths due to high water inflows. These holes will
be extended with diamond core drilling once the diamond drill rig completes its current
program at the nearby Rip n Tear prospect.
4
Cross Section
Figure 3
Figure 2 – Durnings RC drilling over GAIP survey image.
Geology and Mineralisation
The Durnings Prospect is located within EL8680 on the eastern edge of the Canbelego-Mineral Hill
Rift Zone (Figure 1), adjacent to the large, controlling, basin margin, NW-SE oriented Mineral Hill
Rift controlling structure.
Silurian-Devonian age Mineral Hill Volcanics host the prospect. To the east lies the older Ordovicianage Girilambone Group. To the west and northeast Devonian age Talingaboolba Formation
sediments overlie or are faulted against the Mineral Hill Volcanics within the Mineral Hill Rift Zone.
5
Zones of disseminated and vein hosted sulphides (pyrite, galena, sphalerite, chalcopyrite) are
associated with sericite alteration within felsic volcanic and volcaniclastic rock units with porphyritic
to fine-grained texture. These sulphide-rich zones correspond with a coherent, conductive GAIP
anomaly. See Figure 2 and Figure 4.
Durnings is cut by a series of NE-SW trending faults interpreted to be relatively small transverse
faults in a rift setting. One of these faults is interpreted to cut and displace the western GAIP anomaly
into two parts, which are the primary targets tested by DRRC0008 to DRRC0010 (in the north) and
DRRC0006, DRRC0007 and DRRC0011 (in the south).
Generally, the geology displays two zones of sulphide mineralisation associated with interpreted
NW-SE trending, west dipping faults and geological contacts. The orientation of the mineralised
zones is unknown at this time and will be tested with further shallower RC drilling. See Figure 3.
Figure 3 – Durnings geology cross section containing DRRC0006. Note the position of the two identified zones of mineralisation and
the high grade core to the Lower Zone. The 6m section from 274m to 280m shows significant sulphide mineralisation coincident
with 10.3% Pb, 3.5% Zn, 126g/t Ag, 0.4% Cu and 1.93g/t Au. Fine sulphide mineralisation is logged throughout the intersection with
quartz sulphide breccia logged from 274-280m.
Durnings – Next Steps
6
The diamond rig is scheduled to mobilise to Durnings to extend DRRC0006, DRRC0010 and
DRRC0011 once drilling at Rip n Tear has been completed. Logging of the RC chips and assay
results indicates that these holes did not penetrate beyond the altered sulphide-rich zone of interest.
In addition to the current target at Durnings, an extensive additional target located approximately
800m further east of the recent drilling has been identified in the GAIP survey. See Figure 4.
This eastern GAIP anomaly spans approximately 1600m by 250m and is considerably stronger and
larger than the western GAIP anomaly that produced the strong recent RC drilling results. The new
target will be tested with additional RC drill program to determine the source of the chargeability
anomaly. This additional RC drilling program is scheduled to commence in the March quarter 2024.
Additional ground-based GAIP surveys may commence following the testing of the eastern anomaly
(subject to encouragement from assay data from DRRC0011 and the additional RC drilling) to
investigate if the target horizon extends further south-east beyond the extent of the existing survey
area. See Figure 4.
7
Figure 4 – Durnings - Other Targets over GAIP survey image.
Rip n Tear – Exploration Update
Diamond drilling to extend existing RC holes at Rip n Tear re-commenced on 6 January 2024.
In December 2023, the diamond rig completed extensions in MYRC0002 to 318m (which was
terminated in mineralisation due to equipment failure), MYRC0003 to 411m and MYRC0004 to
457m, successfully penetrating the target horizon and underlying unmineralized sediments.
RC drilling was completed at an additional four holes (MYRC0008 to MYRC0011) at Rip n Tear,
targeted at the northern MLEM conductor. See Figure 5 for hole locations.
These additional RC holes were aimed at intersecting the target horizon at shallow depths and all
were drilled with a northerly azimuth. Diamond drilling to extend these RC holes at Rip n Tear is the
priority work for the diamond rig over January and February 2024.
8
Figure 5 – Rip N Tear. Additional 4 RC holes MYRC0008 to MYRC0011 locations
Carpina North and Noisy Ned – Exploration Update
RC drilling at both Carpina North and Noisy Ned was completed in November 2023.
No significant assay results were received from either prospect in the 6-hole/1696m RC program
completed at Carpina North or the 5-hole/1,580m program completed at Noisy Ned. Both projects
remain active exploration opportunities and have both been re-prioritised in light of the exploration
results and ongoing work programs at Durnings and Rip n Tear.
Management Comment
Talisman’s Managing Director, Andrew Munckton, said: “It is exciting to see more significant assay
results from the maiden deep holes at the target generated from ground geophysics at Durnings.
The better multi-metal assay results are coincident with zones of sulphide mineralization in several
of the RC holes drilled into the western GAIP target.
“The mineralisation at Durnings appears to be located in two parallel, west-dipping zones, separated
into a Northern Anomaly and a Southern Anomaly by an apparent north-east trending fault. The
mineralization is strongly associated with the logged sulphide and sericite altered volcaniclastic rock.
9
“At the Northern Anomaly, while the intersections to date are generally low grade, better grade
narrow intersections are also present in the broad-spaced drilling. Further drilling to determine the
extent of these higher-grade zones and holes targeted at shallower positions will be undertaken in
due course.
“At the Southern Anomaly, the assays for DRRC0011 are awaited. The initial hole at this target,
DRRC0006, identified a sulphide-rich, high-grade 6m intersection from 274m down-hole, which
returned a significant assay result of 10.3% Pb, 3.5% Zn 126g/t Ag, 0.4% Cu and 1.93g/t Au. The
assay results for DRRC0011, located along strike from this hole, will allow us to confirm the continuity
of this high-grade mineralized zone.
“A significant additional target at the Durnings prospect has been identified from the GAIP survey.
Having confirmed with the first six deep RC holes that the chargeability anomaly is due to base and
precious metal-rich sulphide mineralization, the larger and stronger GAIP target located 800m east
will now be assessed with an initial RC drilling in a similar fashion to the Durnings target assessment.
“Our geologists are looking forward to integrating the knowledge derived from the recently completed
RC drilling with the full assay dataset and the proposed diamond tail drilling program in the March
quarter to gain a more accurate picture of the orientation and style of lead-zinc-silver-copper-gold
sulphide mineralisation at Durnings and to fully test this extensive structural corridor and emerging
mineralised system.”
Ends
For further information, please contact:
Andrew Munckton - Managing Director
on +61 4 3563 5598
Nicholas Read (Media inquiries)
on +61 4199 29046
This release has been authorised by the Board of Talisman Mining Limited.
10
Table 1: Drill-hole information summary - Durnings
Details and coordinates of the RC holes relevant to this release.
Exploratio
n Licence
Prospect
Hole
Typ
e
Hole ID
Easting
Northing
RL
Dip
Azimuth
(MGA
94)
EOH
Depth
EL8660
Durnings
RC
DRRC0006
505927
6386293
291
-60
49
286
EL8660
Durnings
RC
DRRC0007
505819
6386566
287
-61
46
238
EL8660
Durnings
RC
DRRC0008
505691
6386868
282
-61
45
268
EL8660
Durnings
RC
DRRC0009
505639
6387024
285
-60
50
322
EL8660
Durnings
RC
DRRC0010
505829
6386739
290
-60
48
268
EL8660
Durnings
RC
DRRC0011
505988
6386156
283
-60
49
328
Table 2: Drill-hole information summary - Rip N Tear
Details and coordinates of the RC and Diamond Holes relevant to this release.
Exploration
Licence
Prospect
Hole
Type
Hole ID
Easting
Northing
RL
Dip
Azimuth
(MGA 94)
EOH
Depth
EL8615
Rip N Tear
RC
MYRC0008
489184
6413709
276
-60
344
178
EL8615
Rip N Tear
RC
MYRC0009
488279
6413817
270
-60
330
166
EL8615
Rip N Tear
RC
MYRC0010
487750
6413341
273
-60
327
178
EL8615
Rip N Tear
RC
MYRC0011
488445
6413579
273
-60
328
156
EL8615
Rip N Tear
RC
MYRCD0002
488727
6413960
266
-60
200
318
EL8615
Rip N Tear
RC
MYRCD0003
489671
6414071
264
-60
179
411
EL8615
Rip N Tear
RC
MYRCD0004
487799
6412334
264
-60
299
457
Table 3: RC drill-hole assay intersections for Mineralized Zones (Significant Intersections)
Details of significant RC drilling intersections received to date for the Durnings prospects by Talisman are
provided below.
11
Hole
DRRC0006
Intersections
including:
including:
including:
DRRC0007
including:
DRRC0008
Including
DRRC0009
DRRC0010
including
including
From
18.00
18.00
138.00
166.00
222.00
236.00
244.00
260.00
274.00
2.00
12.00
152.00
166.00
170.00
4.00
22.00
124.00
164.00
176.00
220.00
232.00
32.00
74.00
94.00
110.00
154.00
16.00
26.00
32.00
126.00
156.00
172.00
232.00
248.00
264.00
To
42.00
28.00
140.00
168.00
226.00
238.00
286.00
280.00
280.00
4.00
14.00
154.00
198.00
178.00
32.00
32.00
154.00
166.00
188.00
232.00
234.00
36.00
80.00
98.00
120.00
158.00
18.00
46.00
38.00
128.00
166.00
186.00
242.00
268.00
268.00
Interval (m)
24.00
10.00
2.00
2.00
4.00
2.00
42.00
20.00
6.00
2.00
2
2.00
32.00
8.00
28
10.00
30
2
12
12
2
4
6
4
10
4
2
20
6
2
10
14
10
20
4
Ag g/t
15.58
20.84
3.90
2.00
10.97
3.33
25.26
45.16
125.90
6.12
2.27
4.49
1.12
2.13
7.83
10.75
2.66
2.43
2.38
1.41
2.02
14.06
5.41
2.81
2.92
4.64
5.83
6.57
9.96
7.00
7.05
2.78
3.87
2.33
2.47
Pb (%)
1.45
2.00
0.02
0.09
1.13
0.30
2.31
3.87
10.29
0.31
0.59
0.17
0.23
0.50
0.43
0.51
0.35
0.17
0.20
0.23
0.52
0.11
0.47
0.29
0.06
0.03
0.00
0.00
0.01
0.12
0.87
0.06
0.39
0.15
0.35
Zn (%)
0.18
0.19
0.09
0.46
1.84
0.50
1.30
2.12
3.46
0.09
0.0477
0.51
0.61
1.27
0.67
1.79
0.79
0.62
0.47
0.46
0.19
0.05
0.70
1.03
0.56
0.05
0.00
0.00
0.00
0.11
2.19
0.14
0.74
0.32
0.70
Cu (%)
0.02
0.02
0.26
0.23
0.18
0.04
0.09
0.16
0.40
0.03
0.0155
0.01
0.03
0.02
0.02
0.03
0.01
0.01
0.02
0.01
0.00
0.77
0.19
0.01
0.16
0.34
0.00
0.00
0.00
0.11
0.04
0.02
0.01
0.03
0.07
Au g/t
0.04
0.04
0.11
0.10
0.32
0.11
0.43
0.73
1.93
0.11
0.027
0.03
0.05
0.11
0.11
0.15
0.07
0.04
0.04
0.04
0.04
0.42
0.29
0.06
0.05
0.05
0.03
0.16
0.27
0.42
0.24
0.58
0.39
0.24
0.15
Comments
Pb > 0.5 % (weathered rock)
Pb > 0.5 % (weathered rock)
Cu > 0.20% (fresh rock)
Cu > 0.20% (fresh rock)
Ag > 5g/t (fresh rock)
Zn >0.5 % (fresh rock)
Pb > 0.5 % (weathered rock)
Pb > 0.5 % (weathered rock)
Pb > 0.5 % (weathered rock)
Ag > 5 g/t (weathered rock)
Pb > 0.5 % (weathered rock)
Zn > 0.5 % (fresh rock)
Zn > 0.5 % (fresh rock)
Zn > 0.5 % (fresh rock)
Ag > 5g/t % (weathered/fresh rock)
Ag > 5g/t % (fresh rock)
Zn > 0.5 % (fresh rock)
Zn > 0.5 % (fresh rock)
Zn > 0.5 % (fresh rock)
Zn > 0.5 % (fresh rock)
Pb > 0.5 % (fresh rock)
Cu > 0.2 % (fresh rock)
Zn > 0.5 % (fresh rock)
Zn > 0.5 % (fresh rock)
Zn > 0.5 % (fresh rock)
Cu > 0.2 % (fresh rock)
Ag > 5 g/t (weathered rock)
Ag > 5 g/t (weathered rock)
Ag > 5 g/t (weathered rock)
Ag > 5 g/t (fresh rock)
Zn > 0.5 % (fresh rock)
Au > 0.25 g/t (fresh rock)
Zn > 0.5 % (fresh rock)
Au> 0.25 g/t (fresh rock)
Zn > 0.5 % (fresh rock)
All Table 3 intersections are length-weighted assay intervals from two metre assay intervals taken directly from
the drill rig splitter. Appendix 2 contains full details on sampling and data aggregation methods including cutoff grades.
All listed intersections are reported as down hole intersections at 0.5% Pb and/or 5g/t Ag and/or 0.20 % Cu
and/or 0.5 % Zn and or 0.25g/t Au lower cut-off as indicated in the comments section of Table 3. True-width
of the reported mineralisation is not known at this time.
12
About Talisman Mining
Talisman Mining Limited (ASX:TLM) is an Australian mineral development and exploration company. The Company’s aim is to
maximise shareholder value through exploration, discovery and development of complementary opportunities in base and
precious metals.
Talisman has secured tenements in the Cobar/Mineral Hill region in Central NSW through the grant of its own Exploration Licenses
and through a joint venture agreement. The Cobar/Mineral Hill region is a richly mineralised district that hosts several base and
precious metal mines including the CSA, Tritton, and Hera/Nymagee mines. This region contains highly prospective geology that
has produced many long-life, high-grade mineral discoveries. Talisman has identified several areas within its Lachlan Cu-Au
Project tenements that show evidence of base and precious metals endowment which have had very little modern systematic
exploration completed to date. Talisman believes there is significant potential for the discovery of substantial base metals and
gold mineralisation within this land package and is undertaking active exploration to test a number of these targets.
Talisman also has secured access to over 1000 km2 of highly prospective tenure in South Australia’s Gawler Craton known as
the Mabel Creek Project. Mabel Creek is prospective for large scale Iron Oxide Copper Gold (IOCG) deposits and intrusion related
rare earths and battery metals mineralisation. Mable Creek is surrounded by similar tenure owned and being actively explored by
Australia’s biggest resource companies including BHP, Rio Tinto and FMG.
Competent Person’s Statement
Information in this announcement that relates to Exploration Results and Exploration Targets is based on, and fairly represents
information and supporting documentation compiled by Dr Tim Sharp, who is a member of the Australasian Institute of
Geoscientists. Dr Sharp is a full-time employee of Talisman Mining Ltd and has sufficient experience which is relevant to the style
of mineralisation and types of deposits under consideration and to the activities undertaken to qualify as a Competent Person as
defined in the 2012 Edition of the “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves”.
Dr Sharp has reviewed the contents of this announcement and consents to the inclusion in this announcement of all technical
statements based on his information in the form and context in which they appear.
Forward-Looking Statements
This ASX release may include forward-looking statements. These forward-looking statements are not historical facts but rather
are based on Talisman Mining Ltd.’s current expectations, estimates and assumptions about the industry in which Talisman Mining
Ltd operates, and beliefs and assumptions regarding Talisman Mining Ltd.’s future performance. Words such as “anticipates”,
“expects”, “intends”, “plans”, “believes”, “seeks”, “estimates”, “potential” and similar expressions are intended to identify forwardlooking statements. Forward-looking statements are only predictions and are not guaranteed, and they are subject to known and
unknown risks, uncertainties, and assumptions, some of which are outside the control of Talisman Mining Ltd. Past performance
is not necessarily a guide to future performance and no representation or warranty is made as to the likelihood of achievement or
reasonableness of any forward-looking statements or other forecast. Actual values, results or events may be materially different
to those expressed or implied in this presentation. Given these uncertainties, recipients are cautioned not to place reliance on
forward looking statements. Any forward-looking statements in this announcement speak only at the date of issue of this
announcement. Subject to any continuing obligations under applicable law and the ASX Listing Rules, Talisman Mining Ltd does
not undertake any obligation to update or revise any information or any of the forward-looking statements in this announcement
or any changes in events, conditions, or circumstances on which any such forward looking statement is based.
13
Appendix 2
JORC Tables Section 1 & 2
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections)
Criteria
Sampling
techniques
Drilling
techniques
JORC Code explanation
•
Nature and quality of sampling (e.g. cut
channels, random chips, or specific specialised
industry standard measurement tools
appropriate to the minerals under investigation,
such as down-hole gamma sondes, or
handheld XRF instruments, etc.). These
examples should not be taken as limiting the
broad meaning of sampling.
•
Include reference to measures taken to
ensure sample representivity and the
appropriate calibration of any measurement
tools or systems used.
•
Aspects of the determination of mineralisation
that are Material to the Public Report. In cases
where ‘industry standard’ work has been done
this would be relatively simple (e.g. ‘reverse
circulation drilling was used to obtain 1 m
samples from which 3kg was pulverised to
produce a 30 g charge for fire assay’). In other
cases, more explanation may be required, such
as where there is coarse gold that has inherent
sampling problems. Unusual commodities or
mineralisation types (e.g. submarine nodules)
may warrant disclosure of detailed information.
•
Drill type (e.g. core, reverse circulation, openhole hammer, rotary air blast, auger, Bangka,
sonic, etc) and details (e.g. core diameter,
triple or standard tube, depth of diamond tails,
face-sampling bit or other type, whether core is
oriented and if so, by what method, etc).
Commentary
•
•
•
•
•
•
•
•
•
Drill sample
recovery
•
Method of recording and assessing core and
chip sample recoveries and results
assessed.
RC Drilling samples are collected at two metre intervals via
a drill rig mounted cyclone and static cone splitter set to a
12% split to produce a nominal 4-7kg sample which was
collected in a pre-numbered sample bag.
RC samples undergo routine 2 metre composite pXRF
analysis using a Olympus Vanta M-series to aid in logging
and identifying zones of interest.
Diamond core samples, either PQ, HQ3 or NQ2 in size
diameter, were either cut in half longitudinally or a third
longitudinally, using an automated Almnonte core saw
Core was placed in boats, holding core in place. Core
sample intervals varied from 0.3 to 1.3m in length but were
predominantly aligned to 1m intervals or with sample
boundaries which respected geological contacts.
Sampling is controlled by Talisman protocols and QAQC
procedures as per industry standard and a chain of custody
maintained through transfer to ALS Laboratories in
Adelaide, SA.
RC /DD samples were dried, crushed (where required),
split and pulverised (total prep) to produce a master pulp.
From this master pulp, a 0.25g sub sample was taken for
multi-element analysis by four acid digest with an ICP-MS
finish. A 30g sub sample was also taken for fire assay for
gold with ICP-AES finish.
RC drilling cited in this report was undertaken by Strike
Drilling Pty Ltd using a LC36 (KWL 700) truck-mounted
Reverse Circulation drill rig. A truck-mounted booster and
compressor provided high pressure air with an auxiliary
compressor used where ground conditions warranted.
RC drilling was completed with a face sampling hammer of
nominal 140mm size.
Diamond Drilling (cited in this report was undertaken by
DDH1 Drilling Pty LTD ùsing a UDR1200 truck mounted
rig.
The core was orientated using a Reflex Ez-Ori Tool.
RC Drilling
•
•
RC drill sample recovery is generally high with sample
recoveries and quality recorded in the database by the
logging geologist
Sample recoveries were monitored in real-time by the
14
Criteria
JORC Code explanation
•
•
Logging
•
•
•
Measures taken to maximise sample
recovery and ensure representative nature of
the samples.
Whether a relationship exists between
sample recovery and grade and whether
sample bias may have occurred due to
preferential loss/gain of fine/coarse material.
Commentary
•
presence of Talisman personnel at the drill site.
No known relationship exists between recovery and grade
and no known bias exists.
Diamond Drilling
•
Core recovery data was recorded for each run by
measuring total length of core retrieved against the
downhole interval actually drilled and stored in the
database. TLM representatives continuously monitor core
recovery and core presentation quality as drilling is
conducted and issues or discrepancies are rectified
promptly to maintain industry best standards. Core
recoveries averaged >90%, even when difficult ground
conditions were being encountered.
Whether core and chip samples have been
geologically and geotechnically logged to a
level of detail to support appropriate Mineral
Resource estimation, mining studies and
metallurgical studies.
RC Drilling
Whether logging is qualitative or quantitative
in nature. Core (or costean, channel, etc.)
photography.
•
The total length and percentage of the
relevant intersections logged.
•
•
•
•
RC logging records lithology, mineralogy, mineralisation,
alteration, structure, weathering, colour and other primary
features of the rock samples and is considered to be
representative across the intercepted geological units.
RC logging is both qualitative and quantitative depending
on the field being logged.
All RC drill-holes are logged in full to end of hole.
All RC chip trays are photographed, and then stored onsite
in the Lachlan Copper-Gold Project.
All information collected is entered directly into laptop
computers or tablets, validated in the field, and then
transferred to the database. The level of logging detail is
considered appropriate for exploration and to support
appropriate mineral resource estimation, mining studies,
and metallurgical studies.
Diamond Drilling
•
•
•
•
•
•
•
DD logging is carried out on site once geology personnel
retrieve core trays from the drill rig site. Core is collected
from the rig daily.
DD logging records lithology, mineralogy, mineralisation,
alteration, structure, weathering, colour and other primary
features of the rock samples and is considered to be
representative across the intercepted geological units.
All DD drill-holes are logged in full to end of hole.
Drillhole collar coordinates, azimuth, dip, depth and
sampling intervals are also recorded. DD logging is to
geological contacts.
DD logging is both qualitative and quantitative depending
on the field being logged. Logging of diamond drilling
includes geotechnical data, RQD and core recoveries.
Drill core is photographed prior to any cutting and/or
sampling, and then stored onsite in the Lachlan CopperGold Project. Photographs are available for every diamond
drillhole completed.
All information collected is entered directly into laptop
15
Criteria
JORC Code explanation
Commentary
computers or tablets, validated in the field, and then
tr
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