- Wide zones of high-grade gold
intersected outside of current resource model, including:
BD18-01
- 4.4m @ 41.9 g/t Au from
125m
- 12.4m @ 25.8 g/t Au from 305m,
including
- 5.2m @ 53.0 g/t Au from 313m (new
zone)
BD18-02
- 30.8m @ 7.1 g/t Au from 218m,
including
- 14.1m @ 9.9 g/t Au from
218m
BD18-03
- 12.6m @ 18.1 g/t from 284m
- 4.2m @ 52.0 g/t Au from 339m (new
zone)
- New zone(s) of mineralisation
identified at depth and down dip points to strong potential for
high-grade extensions to Salave’s current Mineral Resource
model.
Black Dragon Gold Corp. (ASX: BDG, TSX-V: BDG) ("Black
Dragon" or the "Company") is pleased to announce the
assay results of three more drill holes from the Company’s 2018
infill and definition drilling campaign at its wholly owned Salave
Gold Project in the Asturias region in northern Spain
("Salave" or the "Project").
This press release features multimedia. View
the full release here:
https://www.businesswire.com/news/home/20180910005931/en/
Figure 2 – Long Section A – A' looking NE
(Graphic: Business Wire)
The results from drill holes BD18-01, 02 and 03 are significant
because they have intersected high-grade mineralisation beyond the
constraints of the current Mineral Resource model, at depth and
down dip to the west and north-west. This confirms the potential
for significant exploration upside to Salave’s existing measured
and indicated resource of 6.52 million tonnes at 4.51 g/t Au, for
944,000 ounces of gold (see February 2, 2017 News Release).
These new drill results are some of the highest-grade
intersections recorded to date at the Project and are expected to
have an positive impact on the next Mineral Resource estimate,
which is due for completion in late Q3/early Q4 2018.
The main objective of the 2018 drill program was to confirm the
extent and continuity of high-grade gold mineralisation at Salave
as the Company prepares to immediately undertake a Preliminary
Economic Assessment ("PEA") focusing on an updated Mineral Resource
estimate and a new underground mine plan.
CEO and Managing Director of Black Dragon, Paul Cronin,
commented:
"The drill hole results announced today support our belief that
the Salave deposit is open at depth and laterally.
"Additionally, the 2018 drill program has in-filled gaps and
voids in the current resource block model and we are anxious to see
what impact the rest of the 2018 drilling and possibly a revised
interpretation of the deposit will have on an updated Mineral
Resource estimate, which we plan to complete once we have received
and compiled all results from the remaining two drill holes.
"The new management team at Black Dragon has been working
diligently to review the extensive historical work undertaken at
Salave, including the establishment of a new Geological Database of
the deposit that is substantially more extensive than previously
prepared.
"When we listed on the ASX in August, we promised shareholders
positive news flow. These results are the start of what we hope
will be a period of advancing and improving the value of this
tremendous gold project."
Table 1 - Select results from diamond
drill holes BD18-01, 02 and 03
Hole From (m) To
(m) Interval (m)
Au(ppm) BD18-01 125.00
129.35 4.35
41.90 146.60 167.25
20.65 5.10
Including
146.60 157.90 11.30
7.42 199.60 206.40
6.80 8.25 217.10
220.20 3.10 7.13
305.30 317.70
12.40 25.83 Including
312.55 317.70
5.15 52.99
BD18-02 218.40
249.20 30.80 7.07
Including 218.40 232.50
14.10 9.89 272.00
275.50 3.50 5.20
294.00 297.95 3.95
8.30 310.00 311.50
1.50 8.88
BD18-03
159.75 165.90 6.15
8.18
283.65
296.25 12.60 18.09
313.55 318.00 4.45
10.58
339.00
343.20 4.20
52.03
Mineralised intervals were selected to
achieve a minimum grade consistent with the Mineral Resource grades
deemed amenable to underground mining methods in the 2017 MDA
Mineral Resource estimate. The selected intervals included above
were based on 2.5 g/t Au cut-off grade, 2 metres minimum interval
length and maximum internal waste interval of 2 metres. Reported
mineral widths may not represent true width. Collar locations were
surveyed in UTM coordinates based on ERTS89 datum, Zone 29N –
Please see Appendix 1.
The 2018 drill campaign consists of seven diamond holes
(BD18-01-07) totalling 2,117 metres. To date, results have been
received for holes BD18-01 to 05. Compilation and verification of
results from holes BD18-06 and BD18-07 is pending and expected to
be reported in the coming weeks. Hole BD18-05 did not reach its
target at depth and was re drilled as Hole BD18-07.
The 2018 drill program targeted the north-west quadrant of the
current resource model and was designed to confirm the presence of
steep structures associated with high-grade gold mineralisation and
to test for possible lateral extensions of flat to shallow
west-dipping stacked lenses of mineralisation defined in the
Company’s current Mineral Resource model. The Company will be
utilising the new information from the 2018 drill holes to update
the current Salave Mineral Resource estimate, which will be used as
the basis for a PEA and ongoing feasibility study of an underground
mine at Salave. Previously released drill results from holes
BD18-04 and BD18-05 are summarised below (see 14 April 14 2018 news
release for full details):
Hole From
(m) To (m) Interval
(m) Au(g/t) BD18-05
147.00 152.60 5.60 6.00
174.60 191.00
16.40 5.86
Including
174.60 179.85 5.25
8.66 Including
187.10 191.00 3.90
8.35 199.90
212.00 12.10 8.02
220.00 222.60 2.60 9.08
234.10 250.80
16.70 17.60
Including
234.10 240.80 6.70
30.27
BD18-04 103.50 109.50
6.00 5.91 167.00
171.50 4.50 6.05
183.05 220.50 37.45
6.60
Including 209.00
219.00 10.00
13.43 243.00 255.00
12.00 6.83
Mineralised intervals were selected to
achieve a minimum grade consistent with the Mineral Resource grades
deemed amenable to underground mining methods in the 2017 MDA
Mineral Resource estimate. The selected intervals included above
were based on 2.5 g/t Au cut-off grade, 2 metres minimum interval
length and maximum continuous internal waste interval of 2 metres.
Reported mineral widths may not represent true width. Collar
locations were surveyed in UTM coordinates based on ERTS89 datum,
Zone 29N – Please see Appendix 1.
The Salave Deposit consists of a series of stacked horizontal to
shallow west-dipping lenses of mineralisation associated with
altered (advanced sercitisation and albitisation) fracture zones
within the Salave granodiorite. The Salave Granodiorite is a large
north-west trending, approximately 500m wide, steeply dipping
sill-like intrusive body overlain by metasediments on the western
flank of the deposit. The contact between the metasediments and the
Salave granodiorite trends approximately north-east and dips gently
to the north-west, approximately parallel to the dip of the
regional thrust faulting and the Salave Deposit. The mineralised
lenses that form the Salave Deposit pinch and swell and at time
these lenses appear to coalesce or are connected by steeper
structures, which may act as feeders to the mineralisation within
the shallow dipping lenses. As the focus moves deeper through the
deposit, the lenses appear to offset and step down to the west and
collectively form a tabular zone immediately below and roughly
parallel to the contact with the overlying metasediments. Not only
have drill holes BD18-01 to 05 confirmed and infilled areas of gold
mineralisation within the previous resource model, they have
intersected high-grade intervals of gold mineralisation outside of
the current resource model, at depth and down dip to the west. The
2018 drilling was logged using oriented drill core. This
information will be used to complete a detailed structural study in
Q4 2018 that will assist in the interpretation of the structural
setting that is controlling the distribution of high-grade gold
zones amenable to underground mining.
COMPETENT & QUALIFIED PERSONS
Santiago Gonzales Nistal, EurGeol., a Qualified Person as
defined by National Instrument 43-101 and a Competent Person as
defined by JORC 2012. Mr Nistal who is a consultant to Black
Dragon, supervised the diamond drilling program at the Salave Gold
Project and reviewed, verified and compiled the data reported
herein. Douglas Turnbull, P.Geo., a Qualified Person as defined by
National Instrument 43-101 and Competent Person as defined by JORC
2012 is a consultant to Black Dragon and has reviewed and approved
the scientific and technical disclosure in this news release.
METHODOLOGY AND QA/QC
The analytical work reported on herein was performed by ALS
Laboratory Group. SL ("ALS") in, Spain and Ireland. ALS is an ISO
17025-2005 accredited and internationally recognised analytical
services provider. All drill core was logged and sampled at its
core storage facility in Tapia de Casariego. Sample intervals
varied from 0.85 to 2.05 metres and all core was split and one half
quartered by saw and quarter core samples were shipped to ALS in
Seville. Samples were crushed and pulverised at ALS and a 50 gm
sample was analysed for gold by Fire Assay method and AA finish.
Samples were also analysed by four acid ICP-AES for arsenic,
antimony and sulphur. The Company follows industry standard
procedures for the work carried out on the Salave Gold Project with
a quality assurance/quality control (QA/QC) program. Blank,
duplicate and standard samples were inserted into the sample
sequence sent to the laboratory for analysis. Black Dragon detected
no significant QA/QC issues during review of the data.
BLACK DRAGON GOLD CORP.1000 Cathedral
Place925 West Georgia StreetVancouver, BC V6C 3L2, Canada,T- +44 20
79934077 F- +44 20
71128814info@blackdragongold.comwww.blackdragongold.com
ABOUT BLACK DRAGON GOLD
Black Dragon Gold Corp. (ASX/TSXV: BDG) is the 100% owner of one
of the largest undeveloped gold projects in Europe, the Salave
project. Salave is situated in the north of Spain in the province
of Asturias. The Salave project has measured and indicated
resources totalling 6.52 million Tonnes grading 4.51 g/t Au
containing 944,000 ounces of gold at a 2.0 g/t cutoff grade and
gold price of USD$1,100/ounce. For more information on the Salave
project, please refer to the technical report "Amended Technical
Report on the Salave Gold Project, Asturias Region, Spain" dated
October 7, 2016, as amended January 31, 2017, and filed on SEDAR
and posted on the Company’s website at www.blackdragongold.com. In
addition to the current Mineral Resource, historical exploration
work suggests there is potential for further mineralisation within
Black Dragon's landholdings.
Appendix 1 - Drill Summary Note: Collar
locations were surveyed in UTM coordinates based on ERTS89 datum,
Zone 29N.
Hole
Easting Northing Elev
(m) Azimuth Dip
EOH (m) From (m)
To (m) Interval (m)
Au(ppm) BD18-01 668317
4825867 40 260 -75
352 98.75 103.50
4.75 3.54
125.00
129.35 4.35 41.90
146.60 167.25 20.65
5.10
Including 146.60
157.90 11.30 7.42
Including 164.10
167.25 3.15 3.64
176.80 178.15 1.35
4.48
199.60 206.40
6.80 8.25
217.10
226.30 9.20 4.05
Including 217.10
220.20 3.10 7.13
223.60 226.30 2.70
4.94
305.30 317.70
12.40 25.83
Including
312.55 317.70 5.15
52.99 BD18-02 668317
4825865 40 230
-70 323 121.70
129.00 7.30 4.69
145.40 154.30 8.90 4.10
177.25 184.25 7.00
4.12
195.25 198.50
3.25 7.47
218.40
249.20 30.80 7.07
Including 218.40
232.50 14.10 9.89
272.00 275.50 3.50
5.20
279.50 283.40
3.90 4.44
294.00
297.95 3.95 8.30
308.50 311.50 3.00
4.77
Including 310.00 311.50
1.50 8.88
BD18-03
668319 4825865 40 210
-75 356 150.35
151.90 1.55 5.74
159.75 165.90 6.15
8.18
195.10 199.50 4.40
3.12
Including 195.10
196.50 1.40
5.91
208.50 220.50
12.00 2.75
257.55
261.40 3.85 4.52
265.50 267.00 1.50
11.25
283.65 296.25
12.60 18.09
313.55
318.00 4.45 10.58
339.00 343.20 4.20
52.03
BD18-04 668316 4825870
41 180 -65
296 103.50 109.50 6.00
5.91
167.00 171.50
4.50 6.05
183.05
220.50 37.45 6.60
including 209.00
219.00 10.00 13.43
243.00 255.00
12.00 6.83
266.00
269.00 3.00 3.87
BD18-05
668230 4825802 40
050 -75 323 147.00
152.60 5.60 6.00
174.60 191.00 16.40
5.86
Including 174.60
179.85 5.25 8.66
Including 187.10
191.00 3.90 8.35
199.90 212.00
12.10 8.02
220.00
222.60 2.60 9.08
234.10 250.80 16.70 17.60
Including 234.10
240.80 6.70 30.27
Appendix 2 – JORC Table
Section 1: Sampling Techniques and Data
(Criteria in this section apply to all
succeeding sections)
Criteria
JORC Code explanation Commentary
Sampling
techniques
- 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.
Black Dragon Gold’s (BDG or "the Company")
2018 drilling programme comprised 7 diamond core drill holes
totalling 2,217m of PQ and HQ size drill core. Hole BD18-XX failed
to reach its target depth due to issues with drilling fluid, but
recovered core was sampled and is to be reported.
- Include reference to measures taken to ensure sample
representivity and the appropriate calibration of any measurement
tools or systems used.
The 2018 drilling was initiated with PQ
size core to variable depths to approximately the fresh rock
interface (16-61m) and then HQ size core in fresh rock till the end
of the hole.
Samples consisted of quarter core over
predominantly 1 to 2 m lengths (average sample length of
1.33m).
All core was cut along oriented core
markings (producing one half and two quarter core lengths) with a
diamond saw into various lengths depending on lithology and
alteration contacts determined by the drill site geologist. All
drill core was sampled and the average sample length for the 2018
drilling was 1.33 m.
- 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 3 kg
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.
Core drilling was used to obtain PQ or HQ
size drill core which was subsequently cut lengthwise using a
diamond saw to obtain quarter core samples, which were crushed in a
jaw crusher before being pulverised in a ring mill to produce a 50
g charge for fire assay and a 25 g charge for near total four acid
digest for S, As and Sb analyses. Sample interval breaks were
determined by changes in alteration types. There is a strong
correlation between gold grades and alteration type and
intensity.
Drilling techniques
- Drill type (e.g. core, reverse circulation, open-hole 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.).
2018 drilling commenced with PQ core reducing to HQ
standard tube and core is orientated using the down hole spear and
wax pencil method.
Drill sample recovery
- Method of recording and assessing core and chip sample
recoveries and results assessed.
Core recovery from the 2018 drilling is estimated
using the drillers recorded depth marks against the length of the
core recovered. There was no significant core loss from the holes
completed in 2018. The average core recovery was above 96% and
above 99% in the mineralized zones.
- Measures taken to maximise sample recovery and ensure
representative nature of the samples.
No special measures were needed to
maximise recovery, with standard drilling practice providing high
recoveries.
- 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.
There appears to be no potential sample bias as there
was no regular or excessive loss of core.
Logging
- 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.
The core logging procedures include photos taken of
the drill core, both dry and wet, before core cutting. The drill
core was orientated and logged including fracture orientation,
recovery, geology, mineralogy, and geotechnical parameters in order
to estimate a RMR value.
Also density measures were taken.
Drill core is stored at Black Dragon’s
warehouse and logging facility.
The level of detail captured in the
logging data is believed to be of an appropriate level to support
resource estimation.
- Whether logging is qualitative or quantitative in nature. Core
(or costean, channel, etc.) photography.
The drill core logging is qualitative and core was
photographed. The Geotechnical logging is quantitative.
- The total length and percentage of the relevant intersections
logged.
All of the 2018 drill core is logged.
Subsampling
techniques and sample preparation
- If core, whether cut or sawn and whether quarter, half or all
core taken.
For the 2018 drill campaign, all core was
cut in half and quartered, and quarter core was assayed.
- If non-core, whether riffled, tube sampled, rotary split, etc.
and whether sampled wet or dry.
For the 2018 drill campaign, All sampled material is
core.
- For all sample types, the nature, quality and appropriateness
of the sample preparation technique.
For the 2018 drill campaign, individual
drill core samples were crushed by jaw crusher to 70% <2mm,
split sample d using a Boyd rotary splitter, then 1000 gm
pulverized to 85% <75um. The Boyd rotary splitter is a
demonstrated method of accurately splitting the primary sample and
is verified by duplicate analyses of the 2018 drilling. Sample
preparation was conducted by ALS Laboratories in Spain.
- Quality control procedures adopted for all subsampling stages
to maximise representivity of samples.
For the 2018 drill campaign, additional selective
sub-sampling of quarter core is was carried out to demonstrate
sampling precision. Blind field duplicates were submitted for
analyses and reviewed. Laboratory duplicate analyses were also
reviewed.
- Measures taken to ensure that the sampling is representative of
the in-situ material collected, including for instance results for
field duplicate/second-half sampling.
For the 2018 drill campaign, a second
quarter core sample was collected for duplicate analyses and
inserted into the sample stream at a rate of one in every thirty
samples. All duplicate analyses were reviewed and show acceptable
precision and variability.
- Whether sample sizes are appropriate to the grain size of the
material being sampled.
Based on the characteristics of gold mineralisation
in this style of deposit and results from the QA/QC program, the
1-2 metre sample size is considered appropriate to reasonably
represent the grain size of the material being tested.
Quality
of assay data and laboratory tests
- The nature, quality and appropriateness of the assaying and
laboratory procedures used and whether the technique is considered
partial or total.
For the 2018 drill campaign, BDG used ALS
Laboratory Group. SL ("ALS") in, Spain and Ireland. ALS, is an ISO
17025-2005 accredited and internationally recognized analytical
services provider. ALS utilized the following methods which were
deemed to be appropriate for the style of mineralisation:
- PREP-31CY for sample preparation, Fine crushing – 70% <2mm,
split sample – Boyd rotary splitter, Pulverise 1,000 gm to 85%
<75um
- Ore grade Au_AA26 Au by fire assay and AAS (50 gm pulp sample)
for gold
- ICP 61 – Near total four acid digest for S, As, and Sb.
Sample analyses are considered a partial
digestion when using an aqua regia digest and total when using fire
assay.
- For geophysical tools, spectrometers, handheld XRF instruments,
etc., the parameters used in determining the analysis including
instrument make and model, reading times, calibrations factors
applied and their derivation, etc.
Standard chemical analyses were used for grade
determination. There was no reliance on determination of analysis
by geophysical tools.
- Nature of quality control procedures adopted (e.g. standards,
blanks, duplicates, external laboratory checks) and whether
acceptable levels of accuracy (i.e. lack of bias) and precision
have been established.
Recent drilling: QAQC procedures included the
insertion of Certified Reference Materials (CRMs) , duplicates and
blank material for each sample batch at a frequency of 10% of
samples sent.
AGQ Laboratories in Seville, Spain was
used as an umpire lab for approximately 100 samples, and results
have conformed to the initial assay results to an acceptable level
of accuracy.
All QA/QC data was reviewed and yielded
acceptable levels of precisions and accuracy. No batches failed
QA/QC analyses.
Verification of sampling and assaying
- The verification of significant intersections by either
independent or alternative company personnel.
The 2018 drill campaign was supervised by Santiago
Gonzales Nistal, EurGeol., a Qualified Person as defined by
National Instrument 43-101, a Competent Person as defined by JORC
and consultant to Black Dragon and reviewed, verified and compiled
the data reported herein.
Douglas Turnbull, P.Geo. a Qualified
Person as defined by National Instrument 43-101, a Competent Person
as defined by JORC and consultant to Black Dragon visited the
property and core logging facilities in May 2018 and has reviewed
and approved of the data reported herein.
CSA Global visited the property in
February 2018 and inspected the current drilling and some of the
historical collars.
- The use of twinned holes.
The 2018 drill campaign in filled areas of tightly
spaced historically drilling which allowed for the verification of
mineralized zones intersected by historical drilling.
- Documentation of primary data, data entry procedures, data
verification, data storage (physical and electronic)
protocols.
The core logging process is manual including
lithology,and geotechnical logging. Logged information is input
into Microsoft Excel spreadsheets. Excel data is checked and then
imported into the master drill hole database which is stored off
site in Acquire data management software. Data verification is
performed during the database load.
Core is boxed at the drill site and
trucked to the company’s core storage facility for logging and
storage.
- Discuss any adjustment to assay data.
No adjustments were necessary or were made.
Location of data points
- Accuracy and quality of surveys used to locate drillholes
(collar and downhole surveys), trenches, mine workings and other
locations used in Mineral Resource estimation.
All 2018 drill holes were surveyed by trained
surveyors using Total Station and differential GPS. Down hole
survey measurements using either a Reflex Maxibor device or Gyro
smart were recorded every 3 or 5 m by the drill site geologist with
an accuracy of <5cm.
- Specification of the grid system used.
The grid system used is UTM-29, ETRS89
datum.
- Quality and adequacy of topographic control.
The topographic surface of the deposit area was
generated by TopCad surveyors and is based on surveyed drill collar
coordinates merged with 1:50,000 topographic mapping.
Data
spacing and distribution
- Data spacing for reporting of Exploration Results.
The 2018 drilling is on an irregular pattern at
various orientations to confirm historical exploration results.
- Whether the data spacing, and distribution is sufficient to
establish the degree of geological and grade continuity appropriate
for the Mineral Resource and Ore Reserve estimation procedure(s)
and classifications applied.
Drill hole density across the project (including the
2018 drilling) is approximately 20- 40 m x 20-40 m closing in to
better than 10 m x 10 m in places.
The data spacing and distribution is
sufficient and appropriate for a mineral resource estimate.
- Whether sample compositing has been applied.
For presentation in the accompanying news release,
assays are reviewed on an individual sample basis and intervals are
selected and weight averaged based on 2.5 g/t Au cut off grade,
minimum total interval length of 2m, and a maximum continuous
internal waste interval of 2m. Select included high grade intervals
are broken out where they have a significant impact on larger
interval average grades.
Orientation of data in relation to
geological structure
- Whether the orientation of sampling achieves unbiased sampling
of possible structures and the extent to which this is known,
considering the deposit type.
The current drilling program is located on historical
drill hole locations, drill at various azimuths with angled drill
holes between -65 to -75 degrees. The generally flat to shallow
dipping nature of the mineralisation is well established by
historic drilling and previous interpretations have also suggested
the presence of vertical mineralized structures which are poorly
defined due to the lack of angled drilling, but not unexpected in
this deposit type. The drill orientations of the 2018 drilling is
suitable to not only confirm the extent of the shallow dipping
zones of mineralisation, but to also test and confirm previously
interpreted steeper zones of mineralisation.
- If the relationship between the drilling orientation and the
orientation of key mineralised structures is considered to have
introduced a sampling bias, this should be assessed and reported if
material.
Drill pad location permitting only allowed the 2018
drilling to be conducted from two drill pads and drill holes were
oriented to maximize the drill coverage that could be achieved from
these two pads. As a result some mineralized zones were not
intersected at optimal angles and mineralised intervals may not
represent true widths. Some mineralised intervals lie outside of
the limits of the current mineral resource model and there is
insufficient information to determine the orientation of these new
zones and whether there is a sampling bias. In all cases we have
cautioned that the reported mineralised intervals may not represent
true widths.
Sample security
- The measures taken to ensure sample security.
The drillers put the core in core-boxes. A
Company geologist transported the core to the core logging and
storage facility.
At the core logging facility, samples are
marked by a project geologist at intervals according to changes in
lithology or alteration.
The samples are numbered sequentially
including the control samples. The same person always takes the
samples with the supervision of the BDG project manager.
There is always oversight of the person
controlling the accuracy of the saw cuts.
Each sample is bagged in two bags for
transport with bar codes on both sides of the bag and another label
inside the bag and closed with a cable tie.
Each hole is sent as one shipment to avoid
confusion or mixing of samples from different drillholes.
All core and samples are stored at the
core logging and storage facility. The facility is protected by an
alarm system and BDG minimizes the number of staff involved with
handling the core and having access to the facility.
Audits or reviews
- The results of any audits or reviews of sampling techniques and
data.
CSA Global has conducted audits of the
current sampling techniques and data.
Section 2: Reporting of
Exploration Results
(Criteria listed in the preceding section
also apply to this section)
Criteria
JORC Code explanation Commentary
Mineral
tenement and land tenure status
- Type, reference name/number, location and ownership including
agreements or material issues with third parties such as joint
ventures, partnerships, overriding royalties, native title
interests, historical sites, wilderness or national park and
environmental settings.
BDG owns 100% of the Salave gold deposit
through its wholly owned Spanish subsidiary Exploraciones Mineras
del Cantabrico SL (EMC). The BDG tenure includes five mining
concessions and associated extensions covering 662 Ha and an
investigation permit covering another 2,765 Ha.
BDG currently has five Mining Concessions
and an Investigation Permit detailed in the January 2017 "Amended
Technical Report on the Salave Gold Project" by MDA on the
Company’s website.
A Mining Concession entitles the holder to
develop resources located within the concession area, except those
already reserved by the State. An Investigation permit gives the
holder the right to carry out, within the indicated perimeter and
for a specific term (a maximum of three years), studies and work
aimed at demonstrating and defining resources and the right, once
defined, to be granted for mining those resources. The term of an
Investigation permit may be renewed by the Regional Ministry of
Economy and Employment for three years and, exceptionally, for
successive periods. The BDG Investigation permit expired in
February of 2017 and is currently under application for extension
and is pending a response from the respective authority.
The Salave gold deposit and mineral
resources as currently defined is situated completely within the
confines of the Company’s Mining concessions and is therefore not
impacted by a renewal of the Investigation permit.
The Mining Concessions and Investigation
permit are subject to restrictions defined by the Plan de
Ordenacion del Litoral de Asturias (POLA) which does not allow any
surface activity within 500 metres of the coast line of the Bay of
Biscay.
The Salave Project is subject to a royalty
agreement with SPG Royalties Inc. described in the January 2017
Amended Technical Report on the Salave Gold Project by MDA on the
Company’s website.
- The security of the tenure held at the time of reporting along
with any known impediments to obtaining a licence to operate in the
area.
The Mining Concessions are believed to be
in good standing with the governing authority and there is no known
impediment to the Concessions remaining in force until expiry dates
(2037 to 2045 for the main concessions covering the project).
Exploration done by other parties
- Acknowledgment and appraisal of exploration by other
parties.
Exploration activities commenced in 1967
with several periods of exploration and mining studies prior to BDG
(originally named Dagilev Capital Corp., renamed Astur Gold
Corporation in 2010, renamed Black Dragon Gold Corp. in 2016)
taking ownership of the project in 2010. A significant amount of
drilling has been undertaken on or immediately adjacent to the
current property boundary during this period totalling 484 drill
holes for 69,585m completed. The first drilling commenced with
Northgate/IMBESA in 1970 and continued with various owners until
2005.
BDG commenced the 2018 drill program in
January 2018, the first to be undertaken since 2013.
Geology
- Deposit type, geological setting and style of
mineralisation.
The Salave gold deposit is hosted mainly by the
strongly altered Salave granodiorite at its western boundary, close
to the contact with the Los Cabos Sedimentary Sequence. The Salave
gold deposit is considered by BDG to be an Orogenic Gold or an
Intrusive Related Gold Deposit.
Most of the gold mineralisation has been
delineated within an area of approximately 500m wide, 780 m long
and test to a depth of 420 m. Gold mineralisation occurs in a
series of stacked irregular lenses related to faults and fracture
zones collectively forming a broad northwest dipping tabular zone
parallel to the contact between the Salave granodiorite and
overlying metasedimentary rocks. The faults and fracture zones
appear to be related to one or more steeply dipping structures,
some of which contain high grade gold. These structures may play a
role as conduits and opening shallow dipping structures (lenses)
for hydrothermal solutions.
Gold mineralisation at Salave is related
to hydrothermal alteration of the host granodiorite. The highest
grades are associated with intense albite-sericite alteration with
fine grained arsenopyrite and stibnite. Destruction of the original
textures is a major feature of the most intensively altered and
mineralised granodiorite. Quartz veins and quartz carbonate
molybdenite bearing veins are present are present in the deposit do
not contain gold and represent a separate mineralising event.
Drillhole information
- A summary of all information material
to the understanding of the exploration results including a
tabulation of the following information for all Material
drillholes:
- easting and northing of the drillhole
collar
- elevation or RL (Reduced Level –
elevation above sea level in metres) of the drillhole collar
- dip and azimuth of the hole
- downhole length and interception
depth
- hole length.
- If the exclusion of this information is
justified on the basis that the information is not Material and
this exclusion does not detract from the understanding of the
report, the Competent Person should clearly explain why this is the
case.
Details of current drilling including collars and
survey information are included in the accompanying news release.
Data aggregation methods
- In reporting Exploration Results, weighting averaging
techniques, maximum and/or minimum grade truncations (e.g. cutting
of high grades) and cut-off grades are usually Material and should
be stated.
Significant mineralized intervals from the
2018 drill program were selected based on a 2.5 g/t Au cut off, a
minimum interval length of 2m and a maximum allowable, continuous
interval of waste of 2m. Assay averages were weighted by individual
sample length and no top cutting was applied. Where appropriate,
select samples or internal intervals of higher grade gold
mineralisation was broken out as an included interval to illustrate
how it influenced the overall average of the larger mineralised
intervals.
- Where aggregate intercepts incorporate short lengths of high
grade results and longer lengths of low grade results, the
procedure used for such aggregation should be stated and some
typical examples of such aggregations should be shown in
detail.
Where encountered included shorter
intervals of higher grade results have consistently been broken out
as included intervals in the accompanying news release.
- The assumptions used for any reporting of metal equivalent
values should be clearly stated.
There are no metal equivalents
reported.
Relationship between mineralisation widths and intercept
lengths
- These relationships are particularly important in the reporting
of Exploration Results.
- If the geometry of the mineralisation with respect to the
drillhole angle is known, its nature should be reported.
The mineralisation forms gently, westerly dipping
stacked irregular lenses which have been well defined by previous
closed spaced drilling. Given the irregular nature of these lenses
and the possibility that there may be other steeper mineralised
structures, the reported mineralised interval may not reflect
precise true widths in all instances.
- If it is not known and only the downhole lengths are reported,
there should be a clear statement to this effect (e.g. ‘downhole
length, true width not known’).
Readers are cautioned that information
regarding the precise geometry and orientation of the mineralized
zones is insufficient in some cases and the reported intervals may
not be true widths.
Diagrams
- Appropriate maps and sections (with scales) and tabulations of
intercepts should be included for any significant discovery being
reported These should include, but not be limited to a plan view of
drillhole collar locations and appropriate sectional views.
Relevant maps and diagrams are included in news
release.
Balanced reporting
- Where comprehensive reporting of all Exploration Results is not
practicable, representative reporting of both low and high grades
and/or widths should be practiced to avoid misleading reporting of
Exploration Results.
Criteria for the selection of mineralised
intervals is clearly defined in the accompanying news release and
the 2018 drilling was entirely sampled.
All intervals not reported failed to meet
the criteria as a result of having little or no gold
mineralisation.
Other substantive exploration data
- Other exploration data, if meaningful and material, should be
reported including (but not limited to): geological observations;
geophysical survey results; geochemical survey results; bulk
samples – size and method of treatment; metallurgical test results;
bulk density, groundwater, geotechnical and rock characteristics;
potential deleterious or contaminating substances.
Several programs of metallurgical test work,
geotechnical studies and resource estimations have been completed
by previous explorers and are considered to be not within the scope
of this news release.
In 2013 Astur Gold engaged a Structural
Geological consultant to complete a structural analyses based on
observations and measurement of oriented core data from 6
historical drill holes. Details of this work are summarized in the
2017 MDA technical report on the Company’s website.
Further work
- The nature and scale of planned further work (e.g. tests for
lateral extensions or depth extensions or large-scale step-out
drilling).
BDG intends to complete a detailed interpretation of
the 2018 drilling and an update to its current mineral resource
estimate. BDG is also considering further surface exploration work
which may include mapping, soil geochemical surveys and airborne
geophysical surveys.
- Diagrams clearly highlighting the areas of possible extensions,
including the main geological interpretations and future drilling
areas, provided this information is not commercially
sensitive.
Diagrams have been included in the body of this news
release.
View source
version on businesswire.com: https://www.businesswire.com/news/home/20180910005931/en/
Black Dragon Gold Corp.Paul Cronin, +44 20 79934077CEO
& Managing Directorpaul.cronin@blackdragongold.comorCannings
PurplePeter Klinger, +61 (0)411 251
540pklinger@canningspurple.com.au
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