Spitfire Materials Ltd.: Beeindruckende erste Bohrergebnisse von bis zu 25 g/t bestätigen für Goldprojekt Alice in Queensland hervorragendes Potenzial
Beeindruckende erste Bohrergebnisse von bis zu 25 g/t bestätigen für Goldprojekt Alice in Queensland hervorragendes Potenzial
Bohrungen bestätigen hochgradige Goldmineralisierung in den Zielzonen des Systems Alice Queen- One Mile: Modellierung von Flugmessdaten belegen außergewöhnliche Goldziele mit Bezug zu Intrusionsgestein
- Zu den hervorragenden Ergebnissen aus dem ersten RC-Bohrprogramm des Unternehmens im Alice River Gold Joint Venture in Queensland zählen unter anderem folgende wichtige Abschnitte:
- 17AARC002--14 m mit 1,59 g/t Au aus 51 m
- 17AARC004--5 m mit 2,67 g/t Au aus 112 m; und
----7 m mit 1,57 g/t Au aus 139 m
- 17AARC005--2 m mit 25,03 g/t Au aus 89 m; und
----13 m mit 1,50 g/t Au aus 111 m, einschließlich
----3 m mit 2,69 g/t Au
- 17AARC007--14 m mit 5,47 g/t Au aus 71 m, einschließlich
----5 m mit 12,85 g/t Au
- 17AARC008--17 m mit 1,59 g/t Au aus 106 m, einschließlich
----8 m mit 2,45 g/t Au
- 17AARC009--17 m mit 3,26 g/t Au aus 89 m, einschließlich
----5 m mit 8,45 g/t Au
- 17AARC011--17 m mit 1,54 g/t Au aus 26 m, einschließlich
----2 m mit 6,45 g/t Au
- Das aktuelle Bohrprogramm hat die Kontinuität einer hochgradigen Goldmineralisierung innerhalb des Systems Alice Queen - One Mile in bis zu 250 m Tiefe ab Oberflächenniveau bestätigt; das System ist sowohl in der Tiefe als auch entlang des Streichens offen.
- Die Bohrergebnisse habe bestätigt, dass die hochgradige Goldmineralisierung eine moderate Mächtigkeit aufweist, mit Quarz-Sulfid-Adern assoziiert ist und in ausgeprägte, breite Alterierungsmäntel eingebettet ist (Serizit, Chlorit, Tonerde und Epidot).
- 3D-Modelle der Anomalie White Lion, die im Rahmen von Messflügen 15 km weiter südöstlich ermittelt wurde, haben eine 1,5 km breite, kreisförmige Donut-Struktur mit hohen Magnetfeldwerten skizziert. Die Magnetfeldquelle befindet sich in einer Tiefe zwischen 100 m und mehr als 500 m und fällt mit anomalen Werten in Gesteinssplittern an der Oberfläche (> 1,0 g/t Au) zusammen. Es handelt sich hier um ein außergewöhnliches Goldziel mit Bezug zu Intrusionsgestein, wie man es auch bei Mt Leyshon findet; das Goldziel wird im Rahmen der geplanten Folgebohrungen Anfang des Jahres 2018 genauer untersucht.
Spitfire Materials Limited (ASX: SPI) freut sich bekannt zu geben, dass das Unternehmen mit seiner Explorationskampagne im Alice River Joint Venture, 440 km nordöstlich von Cairns im Norden des australischen Bundesstaates Queensland, einen fulminanten Start hinlegen konnte; das erste Bohrprogramm, das mit dem RC-Verfahren (Umkehrspülung) absolviert wurde, hat großartige Ergebnisse erzielt.
Die ersten Bohrungen, die auf das bereits angekündigte Explorationsziel in den Prospektionsgebieten Alice Queen und One Mile gerichtet waren, haben ergeben, dass sich sowohl unterhalb als auch in Streichrichtung historischer Goldbergbaubereiche eine bedeutende, hochgradige Primärgoldmineralisierung befindet.
Das im Oktober 2017 bei Alice River durchgeführte Bohrprogramm bestand aus 14 Löchern und umfasste 2.397 Bohrmeter; die in den 1980er und 1990er Jahren von früheren Betreibern absolvierten RC- und Diamantbohrungen konnten erfolgreich validiert werden. Die neuen Bohrergebnisse haben gezeigt, dass sich das Goldsystem weiter ausdehnt als bisher angenommen und sowohl entlang des Streichens als auch in der Tiefe offen ist. Die Bohrungen bei One Mile zielten auf die im Fallwinkel abwärts driftenden (nördlichen) Ausläufer einer Mineralisierung in geringerer Tiefe bei Alice Queen ab.
John Young, Geschäftsführer von Spitfire, erklärte, dass die erste Bohrphase das große Potenzial des Projekts Alice River bestätigt hat, welches sich neben dem wachsenden Portfolio an Goldprojekten in der Region Kalgoorlie in Westaustralien zu einem bedeutenden längerfristigen Explorationsprojekt entwickeln dürfte.
Wir haben einen fulminanten Start hingelegt; mit unserem ersten Bohrprogramm konnten wir beeindruckende Ergebnisse erzielen, die unser Geomodell bestätigen und uns bessere Einblicke in die Geometrie und Kontrollstrukturen der Mineralisierung bei Alice River ermöglichen.
Anhand unserer bisherigen Arbeiten konnten wir eindeutig ein bedeutendes hochgradiges Golderzgangsystem in den Bereichen Alice Queen und One Mile ermitteln, das beste Chancen hat, weiter zu wachsen und wo schon in naher Zukunft Ressourcen erschlossen werden können.
Gleichzeitig haben wir auf dem gesamten Projektgelände eine Reihe von Zielen ermittelt, darunter auch ein 15 km südöstlich gelegenes vielversprechendes Goldziel mit Bezug zu Intrusionsgestein, das starke Ähnlichkeit mit der Lagerstätte Mt Leyshon (3,5 Millionen Unzen) aufweist. Dieses und andere Ziele werden im Rahmen eines detaillierteren Explorationsprogramms bei Alice River im Jahr 2018 evaluiert.
Unter folgendem Link finden Sie die vollständige englische Originalmeldung: http://www.spitfirematerials.com/sites/default/files/asx-announcements/6862560.pdf
Die Ausgangssprache (in der Regel Englisch), in der der Originaltext veröffentlicht wird, ist die offizielle, autorisierte und rechtsgültige Version. Diese Übersetzung wird zur besseren Verständigung mitgeliefert. Die deutschsprachige Fassung kann gekürzt oder zusammengefasst sein. Es wird keine Verantwortung oder Haftung: für den Inhalt, für die Richtigkeit, der Angemessenheit oder der Genauigkeit dieser Übersetzung übernommen. Aus Sicht des Übersetzers stellt die Meldung keine Kauf- oder Verkaufsempfehlung dar! Bitte beachten Sie die englische Originalmeldung auf www.sedar.com , www.sec.gov , www.asx.com.au/ oder auf der Firmenwebsite!
ALICE QUEEN - ONE MILE MINING CENTRE
The historical Alice Queen Mine and One Mile prospect areas, are located on granted Mining Leases ML2901 and ML3010 respectively (see Figure 1 - Alice River Drill Plan).
As part of the planned program, holes 17AARC001 to 17AARC014 were drilled to test the mineralization below the Alice Queen pit and to follow the mineralized zone to the NNW, down-plunge of the Alice Queen Pit, towards One Mile.
Significant RC drilling intercepts >0.5g/t are listed below with full results provided in Table 2.
http://www.irw-press.at/prcom/images/messages/2017/41595/SPI ASX Release Drilling Alice River (28 Nov) - Final gelb_DE_PRCOM.001.jpeg
Figure 1: Alice River Drill Plan
Reverse Circulation holes 17ARRC001 to 17ARRC003, and holes 17ARRC012 - 17AARC014 were completed over the One Mile Prospect, targeting extensions of the higher-level vein system at the Alice Queen pit both along-strike and down-plunge. Drilling was successful in defining broad alteration zones with low to moderate grade gold mineralisation over significant widths below 100m. The results from 17ARRC002 are very encouraging, with this hole identifying the likely extension of the main quartz vein/lode in the Alice Queen pit further south.
Significant Gold Intercepts* (>0.5g/t Au and >1m wide)
Hole 17ARRC001 --
- 16 m @ 0.70 g/t Au from 163 m, including 1 m @ 2.48 g/t Au
- 11 m @ 0.91 g/t Au from 182 m, including 4 m @ 1.24 g/t Au
- 5 m @ 0.94 g/t Au from 195 m
- 3 m @ 1.33 g/t Au from 207 m, including 1 m @ 2.21 g/t Au
- 2 m @ 2.21 g/t Au from 19 m
- 2 m @ 5.57 g/t Au from 27 m
- 2 m @ 0.67 g/t Au from 43 m
- 14 m @ 1.59 g/t Au from 51 m, including 4 m @ 2.30 g/t Au
* Intercepts >0.5g/t Au and >1m wide down hole
- 1 m @ 1.78 g/t Au from 235 m
- 1 m @ 2.54 g/t Au from 264 m
- 3 m @ 1.56 g/t Au from 36 m
- 3 m @ 2.05 g/t Au from 46 m
- 5 m @ 1.69 g/t Au from 55 m, incl. 1 m @ 3.75 g/t Au
- 1 m @ 13.35 g/t Au from 65 m
- 3 m @ 4.37 g/t Au from 73 m, incl. 1 m @ 8.49 g/t Au
- 1 m @ 16.1 g/t Au from 96 m
Reverse Circulation holes 17ARRC004 - 17AARC 011 were designed to drill critical sections of the of Alice Queen open pit area at depth, below the known mineralisation.
Drill holes 17ARRC004 - 17AARC006 were located at the northern end of the pit and intersected broad widths (>35m) of elevated gold in excess of 0.10g/t Au. Drill holes 17ARRC007 and 17AARC008 were drilled below the middle area of Alice Queen open pit, and the intersection widths correlate well with historical drilling in the 1980s to 1990s, and display good continuity between holes (see Figure 2, drill section C-D).
Hole 17ARR007 returned a significant result of 14 m @ 5.47 g/t Au, including 5 m @ 12.85 g/t Au, and 1 m @ 33.0 g/t Au.
17AARC009 was drilled 50m south of section E-F and returned a significant result of 17m @ 3.26 g/t Au, including 5m @ 8.45 g.t Au.
- 5 m @ 2.67 g/t Au from 112 m
- 7 m @ 1.57 g/t Au from 139 m
- 2 m @ 25.03 g/t Au from 89 m, including 1 m @ 48.2 g/t Au
- 3 m @ 0.954 g/t Au from 94 m.
- 13 m @ 1.50 g/t Au from 111 m, including 3 m @ 2.69 g/t Au
- 7 m @ 0.9 g/t Au from 30 m, including 2 m @ 1.68 g/t Au
- 4 m @ 0.99 g/t Au from 202 m, including 1 m @ 1.62 g/t Au
- 14 m @ 5.47 g/t Au from 71 m, including 5 m @ 12.85 g/t Au, incl. 1 m @ 33.0 g/t Au
- 9 m @ 1.18 g/t Au from 100 m
- 3 m @ 1.97 g/t Au from 57 m.
- 17 m @ 1.59 g/t Au from 106 m, including 8 m @ 2.45 g/t Au.
http://www.irw-press.at/prcom/images/messages/2017/41595/SPI ASX Release Drilling Alice River (28 Nov) - Final gelb_DE_PRCOM.002.jpeg
Figure 2 - Drill Section C-D
- 17 m @ 3.26 g/t Au from 89 m, incl. 5 m @ 8.45 g/t Au, incl. 1 m @ 15.4 g/t Au
- 4 m @ 3.54 g/t Au from 120 m
http://www.irw-press.at/prcom/images/messages/2017/41595/SPI ASX Release Drilling Alice River (28 Nov) - Final gelb_DE_PRCOM.003.jpeg
Figure 3 - Drill Section E-F
- 2 m @ 2.5 g/t Au from 25 m, including 1 m @ 4.49 g/t Au
- 2 m @ 1.588 g/t Au from 44 m
- 17 m @ 1.54 g/t Au from 26 m, including 2 m @ 6.455 g/t Au
FUTURE DRILLING PLANS
Given the impressive initial results from Alice Queen and One Mile, which has confirmed the presence of a significant mineralised system, Spitfire intends to commence follow-up drilling in 2018 to evaluate extensions of the system at depth and along strike.
Initial drilling will also be undertaken at numerous other gold prospects along strike, such as Julie Ann, Peninsula King, Big Blow and German Jack. These historical gold prospects are located to the south-east of Alice Queen and One Mile along the Alice River Shear Zone.
Historical drilling at these prospects has yielded high-grade gold intercepts but has only tested the mineralisation to a relatively shallow average depth of just 40m. The Company believes that it has an exceptional opportunity to drill below these known systems in 2018, and build up a portfolio of gold resources along the highly prospective Alice River shear zone.
The White Lion Prospect lies some 15km along strike to the south-east of Alice Queen area, located on EPM 26266. Several rock chip samples were taken by Spitfire at this prospect over a quartz-vein breccia zone located just north of the White Lion magnetic anomaly. The brecciated vein zone outcrops for approximately 300m and trends north-west, sub-parallel to the regional shear zone (see Figure 4 - White Lion Prospect and rock chip results).
Eight rock chip samples were taken by Spitfire from surface outcrops, and results returned assays of up to 1.7g/t Au. These results have verified the anomalous rock chip results reported from historical exploration work carried out in the 1980s, which returned assays of up to 2.56g/t Au.
Shallow Airtrack drilling carried out in the 1980s also returned anomalous gold, with the best interval returning 20m @ 0.4 g/t Au within hole ARAT-244. The historical Airtrack drilling only reached depths of 30m, and the gold zones defined were never followed up with further exploration or deeper drilling. There is very little exposed outcrop in the area, however altered granite was noted as well as a fine-grained porphyry unit (mapped as green aplite dyke), very similar to what has been mapped on the periphery of the Alice Queen pit.
http://www.irw-press.at/prcom/images/messages/2017/41595/SPI ASX Release Drilling Alice River (28 Nov) - Final gelb_DE_PRCOM.004.jpeg
Figure 4: White Lion Prospect and rock chip results
A detailed aeromagnetic survey was flown by Spitfire in mid-2017 over the most prospective portions of the Alice River Gold Project tenements. 3D magnetic inversion modelling of the White Lion magnetic feature was completed in late September. The donut-shaped anomaly has a low amplitude signature (50nT) and is around 1.5km in diameter. The inversion model suggests that the magnetic source has the form of a sub-vertical cylinder, with a depth to the top of around 100m. The donut feature becomes more magnetic below 500m depth, (See Figures 5 and 6).
The pipe-like magnetic anomaly is reminiscent of classic porphyry copper-gold signatures, but is somewhat lower in amplitude. However, the anomaly could be associated with an intrusive-related gold system, as there are anomalous gold geochemical results around the White Lion area (historical rock chips, soils, air track holes, new rock chips). Along the north-eastern side of the donut magnetic feature, a strong regional north-west trending fault structure is also evident in the magnetic data, which is likely be an important structural feature related to gold deposition.
The target at White Lion could be more clearly defined by employing ground electrical geophysical surveys such as Induced Polarisation, which has been recommended by the Companys consultants.
The magnetic feature is similar in size to the Mt Leyshon breccia pipe. The Mt Leyshon pipe has a remnant low magnetic anomaly of around 2000nT related to the intrusion and biotite-magnetite alteration. Pervasive phyllic alteration can also destroy magnetite, resulting in lower amplitude anomalies. The Mount Leyshon gold deposit, which lies to the south-east, is estimated to contain some 3.5 million ounces of gold. Further exploration work at White Lion is planned for 2018.
http://www.irw-press.at/prcom/images/messages/2017/41595/SPI ASX Release Drilling Alice River (28 Nov) - Final gelb_DE_PRCOM.005.png
Figure 5: White Lion 3D Magnetic inversion Depth Slices
http://www.irw-press.at/prcom/images/messages/2017/41595/SPI ASX Release Drilling Alice River (28 Nov) - Final gelb_DE_PRCOM.006.png
Figure 6: White Lion 3D Magnetic inversion Depth Slices
For further information please contact:
COMPETENT PERSONS STATEMENT
The information in this announcement relating to Exploration Results and Mineral Resources is based on information compiled by the Companys exploration consultant, Dr Matthew White, a competent person, who is a Member of the Australian Institute of Geoscientists. Dr White has sufficient experience relevant to the style of mineralisation and to the type of activity described 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 White consents to the inclusion in this announcement of the matters based on his information in the form and content in which it appears.
Table1: Collar Co-ordinates Reverse Circulation Drilling - Alice River Database
Hole-Id Collar Collar CollaCollarCollar Total
East North r RL Azim Hole Depth
MGA94 MGA94 (m) (Grid Dip (m)
17ARRC001745186 8292610126 60 -70 221
17ARRC002745215 8292669128 60 -60 106
17ARRC003745085 8292685126 60 -60 202
17ARRC004745177 8292570125 60 -60 172
17ARRC005745190 8292559125 60 -60 166
17ARRC006745165 8292540124 60 -60 232
17ARRC007745212 8292524124 60 -60 142
17ARRC008745191 8292511123 60 -60 160
17ARRC009745188 8292484122 60 -60 172
17ARRC010745247 8292467124 60 -60 100
17ARRC011745254 8292450123 60 -60 100
17ARRC012745142 8292716127 60 -60 220
17ARRC013745107 8292623126 60 -60 286
17ARRC014745205 8292708125 60 -60 118
Table 2 - Significant Intersections (> 0.5g/t Au) Reverse Circulation Drilling
HOLE_ID FROM (m) TO (m) LENGTH Intersection >
g/t Au (all
17AARC001 163 179 16 0.70
182 193 11 0.91
195 200 5 0.94
207 210 3 1.33
17AARC002 19 21 2 2.21
27 29 2 5.57
31 32 1 1.54
43 45 2 0.67
51 65 14 1.59
17AARC003 89 90 1 0.60
97 101 4 0.78
17AARC004 43 44 1 0.70
112 117 5 2.67
125 126 1 0.80
139 146 7 1.57
17AARC005 89 91 2 25.03
94 97 3 0.95
111 124 15 1.34
127 128 1 0.53
132 134 2 0.76
17AARC006 30 37 7 0.90
152 155 3 0.72
202 206 4 0.99
219 223 4 0.69
17AARC007 3 4 1 0.51
6 7 1 2.66
46 49 3 0.78
61 62 1 1.85
71 85 14 5.47
88 91 3 1.14
100 109 9 1.18
17AARC008 57 60 3* 1.97
80 81 1 1.79
83 84 1 4.16
87 88 1 4.01
89 90 1 0.53
106 123 17 1.59
*3m composite sample
HOLE_ID FROM (m) TO (m) LENGTH Intersection
(m) >1 g/t Au
133 134 1 1.33
17AARC009 21 22 1 1.15
55 56 1 0.96
64 65 1 1.22
70 71 1 0.76
84 85 1 2.87
89 106 17 3.26
113 114 1 0.70
120 124 4 3.54
127 130 3 0.58
17AARC010 11 12 1 5.90
25 27 2 2.50
44 46 2 1.59
17AARC011 9 12 *3 0.73
26 43 17 1.54
17AARC012 160 167 7 0.61
17AARC013 235 236 1 1.78
264 265 1 2.54
17AARC014 36 39 3 1.56
46 49 3 2.05
55 60 5 1.69
65 66 1 13.35
73 76 3 4.37
96 97 1 16.10
NSI = no significant intercepts over 1g/t Au
Table 3 - White Lion Rock Chip Samples
10307756469 8283451Brecciated quartz 0.003
10307756479 8283448Iron oxide stained 0.001
9 and silicified
10308756518 8283425Silicified quartz 0.002
0 porphyry outcrop.
10308756543 8283403Brecciated 0.001
10308756643 8283341Massive quartz 0.277
2 vein suboutcrop
10308756714 8283266Massive quartz 1.295
3 vein outcrop with
10308756786 8283228Pale green, fine 0.05
4 grained volcanic
10308756694 8283313Massive quartz 1.700
5 vein suboutcrop
JORC Code, 2012 Edition - Table 1
JORC Code, 2012 Edition - Table 1 - Alice River Gold Exploration Drilling
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
CriteriaJORC Code explanation Commentary
Sampling- Nature and quality of sampling - The Alice River Gold historical drill sample
(eg cut channels, random chips, data was collected by historical exploration
techniqu or specific specialised companies between 1987 and 1998. Drilling
es industry programs included Rotary Air Blast (RAB),
standard measurement tools Airtrack (open
appropriate to the minerals
under investigation, such as hole rotary percussion with a top hole hammer),
down Reverse Circulation Percussion (RC) and diamond
core drilling techniques. Drill hole data
hole gamma sondes, or handheld includes 469 holes for a total of 18,294.7 m
XRF instruments, etc). These drilling, and 8,322 assay samples.
examples should not be taken as
limiting the broad meaning of
sampling. - The historical drilling programs were
completed by Cyprus, Beckstar (subsidiary of
Goldminco), Golden Plateau and Subloo
International between 1987 and 1998.
- The recent October 2017 RC drill program was
- Include reference to measures completed by Spitfire Materials Limited (SPI)
taken to for a total of 14 RC holes, plus 1 RC
ensure pre-collar for an abandoned diamond drill hole,
sample representivity and the for a total of 2483 m RC drilling, and
appropriate calibration of any
measurement tools or 1741 assay samples (including duplicates, blanks
systems and standards).
- Aspects of the determination of - The spacing of drill hole collars is variable.
mineralisation The gold mineralisation was generally defined
that by drill holes on
are Material to the Public Report
. a cross- section line spacing, roughly
- In cases where industry
standard work has the strike of the mineralised zones, with an
been average on-section spacing of 12.5 to 50
done this would be relatively m.
simple (eg reverse circulation
drilling was used to obtain 1 m
samples from which 3 kg was
pulverised to produce a 30 g - Drill holes were oriented to return the best
charge for fire assay). In intersections of the mineralisation. The
other cases more explanation may majority of the drill holes were oriented
be required, such as where there roughly perpendicular to strike (strike = 330),
is coarse gold that has inherent angled 55 to 70 degrees dip towards 060
sampling problems. Unusual degrees, in order to intersect the steeply WSW
commodities or mineralisation dipping ore zones at a
types (eg submarine nodules) may high
warrant disclosure of angle.
detailed - Historical diamond drill core was typically NQ
however some larger diameter core was also
- Historical Reverse Circulation (RC) percussion
drilling was generally carried out using a 4.5
inch RC bit hammer with samples air lifted to
- The 2017 RC drilling program utilized a
UDR1200 drilling rig using a face sampling
hammer with a 4.875 inch bit.
- Historical Airtrack drilling was carried out
using a track mounted rotary percussion drill
with a top hole hammer. No information on the
bit size or
hole diameter was recorded in the historic logs
- Historical Diamond drill core was generally cut in half using a diamond saw. Core was
sampled on geological intervals (generally 0.5 m to 2 m). Sample weights of approximately
1.0 to 3.0 kg were crushed, dried and pulverised by the Lab, to produce a 50 g pulp sample
for analysis by Fire Assay (Au) with
- Historical RC and Airtrack sample chips were processed on site to obtain 2 m composite
samples from which approximately 2 - 3 kg was taken, then pulverised (at the laboratory)
to produce either a 30g or a 50g charge for analysis by Fire
(Au) with AAS finish. Selective high-grade samples were also assayed by screen fire assay m
- The 2017 RC drilling program sample chips were processed on site to obtain 1 m samples in
logged zones containing mineralization and alteration, and 3 m composite samples elsewhere
throughout the hole, from which approximately 2 - 3 kg was taken, then pulverised (at the
laboratory) to produce a 50g charge for analysis by Fire Assay (Au) with AAS
- Historical assay laboratories used for the assaying include Tetchem Labs, Analabs and ALS.
- The 2017 RC drilling program utilized the ALS Townsville Laboratory.
Drilling- Drill type (eg core, reverse - A total of 469 historical Airtrack, RC and
circulation, open-hole hammer, Diamond holes were captured into a database
techniqu rotary air blast, auger, Bangka, for
es sonic, a total advance of 18,294.7 m drilling.
etc) Airtrack drilling makes up 41.4%, RC drilling
and details (eg core diameter, makes up 43% and diamond drilling makes up
triple or standard tube, depth 15.6% of the total
of diamond tails, face-sampling m
bit or other type, whether core drilled.
is oriented and if so, by what - Historical hole depths range from 10 m to 196 m
- For the 2017 RC drilling program, hole depths
ranged from 86 m to 286
- Company drilling rigs and professional
drilling contractors were used by the
companies, between 1987 and 1998.
- For the 2017 RC drilling program, Depco
Drilling Contractors were utilized using
professional drillers with extensive RC
Drill - Method of recording and - A majority of the historical diamond drilling
sample assessing core recoveries
recover and were
y chip sample recoveries and recorded and most recoveries were reported to
results be greater
- Measures taken to maximise 90%.
sample - For the Historical Airtrack and RC drilling,
recovery the overall recoveries are assumed to
and ensure representative nature be
the - The competent Palaeozoic host rocks (quartz
samples. veins in granite) typically recover well with
- Whether a relationship exists all the drilling techniques used (Airtrack, RC
between sample recovery and and Diamond drilling). However, there
grade and whether sample bias
may were some minor sample recovery problems noted
have in the historical reports when historical drill
occurred due to preferential holes encountered
loss/gain of faulted/fractured
material. - No sample recovery problems were encountered
with the recent RC drilling in
- The results discussed herein are exploration
results only, and no allowance
made for recovery losses that may impact future
Logging - Whether core and chip samples - The geological logging was appropriate for the
have style of drilling and
geologically and geotechnically lithologies encountered.
logged to a level of detail to - Geological logs for historical holes are
support appropriate Mineral available for most holes. However, logging was
Resource estimation, mining often rudimentary and some logs were not
studies and recorded or not included in
- Whether logging is qualitative - Logging is qualitative, with the exception of
or quantitative some quantitative logging
- Core (or costean, channel, etc) - quartz veining and alteration content.
photography. - Historical drill hole logging data was entered
into the Alice River Gold database directly
- The total length and percentage from historical drilling reports and
relevant intersections logged. - Historical Diamond core was logged for
lithological, structural, alteration,
- No geotechnical logs are available.
- No routine photography of drill core is availab
- Drill hole logging data for the 2017 RC
drilling program was also entered into the
Sub-sampl- If core, whether cut or sawn - Historical Diamond drill core was generally
ing and whether cut in half using a diamond saw or splitter.
quarter, Core was largely sampled on geological
technique half or all core taken. intervals, between 0.5 m and 2 m. However, some
s and - If non-core, whether riffled, rare sample lengths up to 5.5 m were recorded.
sample tube sampled, Sample weights of approximately 1 to 3 kg were
preparat rotary crushed, dried and pulverised (by the Lab)
ion split, etc and whether sampled to
wet produce a 50 g pulp sample for analysis by Fire
or Assay (Au) with
- For all sample types, the finish.
nature, quality and - Historical RC drill chips were split on site
appropriateness of the sample to obtain 2 m samples from which approximately
preparation 2 to 3 kg was collected, then pulverised (at
technique. the laboratory) to produce a 30 or 50g charge
- Quality control procedures for analysis by Fire Assay (Au) with AAS
adopted for all sub-sampling finish. For some RC holes, Cyprus composited
stages to maximise the 2 m intervals at the top of the hole into a
representivity 10 m composite sample, and on one occasion, one
of 40 m composite
- Measures taken to ensure that made.
the sampling is representative - RC samples were collected on the rig using a
of the in situ material cyclone (from the drill rig) and then split by
collected, the field team to obtain a 2-3 kg sample.
including for instance results
for field duplicate/second-half
sampling. - Historical Airtrack samples were generally 2
m, and collected at the
- Whether sample sizes are
appropriate to the hole collar and split by the field team to
grain obtain a sample. The splitting method is not
size of the material being sample known (riffle splitter,
etc.). Some sample contamination and/or
is likely to have occurred with this style of dri
- In many historical drill holes, only part of
the hole was sampled and assayed. Several
intervals not considered to be mineralized by
field staff, were not
and assayed. Details of the laboratory
preparation of samples were not always
recorded. For the samples sent to Analabs,
samples were dried and finely pulverised as per
the standard method used at
- For the 2017 RC drilling program a cyclone was
used to collect the RC chip samples and an 8:1
splitter was mounted below the cyclone, from
which approximately 2 - 3 kg of RC drill chips
were taken every 1 metre. These RC chip samples
were sent to the Laboratory to be pulverized,
to produce a 50g charge for analysis by Fire
Assay (Au) with AAS
Quality - The nature, quality and - For historical drilling, some duplicates were
of appropriateness of submitted in some sample batches to
assay the the
data assaying and laboratory laboratories. No standards or certified
and procedures used and whether the reference materials
laborato technique is considered partial were
ry or reported. QAQC measures are assumed to be as
tests total. per standard industry practice for
- For geophysical tools, the
spectrometers, handheld XRF time. Internal laboratory QAQC checks and
instruments, etc, the parameters repeats were reported by the
in in many cases. A review of the internal
determining the analysis laboratory QAQC suggests the laboratory was
including instrument make and performing within acceptable
model, reading times, limits.
calibrations factors applied and
- Nature of quality control -
procedures adopted (eg - For historical data, QAQC data was difficult
to locate and was not compiled into a separate
standards, blanks, duplicates, digital database. A number of high grade gold
external laboratory checks) and assays were repeated using screen
whether acceptable levels of fire
accuracy assay methods and returned similar/acceptable re
(ie lack of bias) and precision sults.
been - For the 2017 RC drilling program,
established. comprehensive QAQC procedures were implemented.
Nine QAQC samples were included for every 100
samples submitted to the laboratory, including
5 duplicates, 2 blanks and 2 standards per 100
samples. The gold standards are 60 gram packets
of Certified Reference Materials purchased from
OREAS. The blank samples consist of 1-2 kg of
quartz sand. The assay results for the QAQC
samples were all returned within acceptable
Verificat- The verification of - The Project Manager for Spitfire Materials has
ion of significant intersections visited the project in the field and confirmed
sampling by the location of some historical drill collars
and either independent or and areas of historical gold mining with a
assaying alternative standard
personnel. - Some diamond drill cores in core trays were
- The use of twinned holes. also located on site. However, Airtrack, RC and
- Documentation of primary data, RAB samples could not
procedures, data verification, - Spitfires geologists have verified the
data storage (physical and digital database from the historical drilling
electronic) reports and/or original laboratory reports.
protocols. Digital data has been compiled from quality
scanned tables and plans included in the
- Discuss any adjustment to assay historical
- The drill sample assay data has been captured
and entered into the Alice River Gold Access
database. This database was imported into
Geosoft Target software, after compilation and
- For the 2017 RC drilling program, several
holes were drilled in proximity to historical
holes to verify the mineralization, sampling
and assaying for historical
Location - Accuracy and quality of - The historical drill holes were drilled on a
of data surveys used to locate drill local grid, sub-parallel to strike (orientated
points holes (collar and down-hole at 330 degrees). Most drill hole collars were
surveys), trenches, mine surveyed using a standard GPS, differential GPS
workings and other locations or by a surveyor. Drill
Mineral hole maps were created by the historical
Resource estimation. companies
- Specification of the grid and later geo-referenced to MGA Grid, zone 54,
system GDA94 datum. Drill collars are believed to be
used. accurate to +/-5 m on the
- Quality and adequacy of local
control. - Some historical drill collar locations were
checked in the field using a standard GPS, and
found to be within 15 m for easting and
northing MGA coordinates.
survey accuracy is considered to be +/- 15 m
for easting, northing and elevation
- The Co-ordinate system used in the new
database is MGA zone 54,
- Downhole survey measurements were collected
for some historical diamond drill holes using a
standard downhole camera. For many of the
shallow holes, only one top of hole survey was
completed at the collar position, noting the
azimuth and dip at the start of
- For the 2017 RC drilling program, the Project
Manager was present during the drilling program
and collar locations were recorded using a
standard GPS. These collars will be surveyed
using a Decimetre (sub 15 cm) Differential GPS
- For the 2017 RC drilling program, downhole
surveys measuring dip and azimuth were taken
every 30 m down hole by the lead driller, using
a digital single shot survey
tool, that was calibrated prior to the start of
Data - Data spacing for reporting of - The spacing of drill hole collars is variable.
spacing Exploration The gold mineralisation at Alice River has
and Results. generally been defined by drill holes on a
distribu cross- section line spacing, roughly
tion perpendicular to the strike of the mineralised
Whether the data spacing and - 12.5 m to 50 m, with an average on-section
distribution spacing of 12.5 to 50
sufficient to establish the
degree of geological - Historical RC and Airtrack sampling is
and generally on 2 m intervals
grade continuity appropriate for down
the Mineral Resource and Ore hole.
Reserve estimation procedure(s) - Historical Diamond drill sampling was
and classifications generally 0.5 to 2 m down hole, but up to
- Whether sample compositing has - Some sample compositing was carried out on
been site within some of the RC holes.
For example in some RC holes, Cyprus composited
the 2 m intervals at the top of the hole into a
10 m composite, and on one occasion, one 40 m
- For the 2017 RC drilling program, sample chips
were processed on site to obtain 1 m samples in
logged zones containing mineralization and
alteration, and 3 m composite samples elsewhere
throughout the hole using a sample spear in
areas where weak or no mineralization was
logged by the geologists on
- No judgement has been made on whether the
drill density is sufficient to
a Mineral Resource.
Orientati- Whether the orientation of - Exploration drilling is generally
on of sampling perpendicular to mineralized bodies or
data in achieves shear
relation unbiased sampling of possible zone.
to structures and the extent to - No orientation based sampling bias has been
geologic which this is known, considering identified in the data at
al the this
structur deposit point.
- If the relationship between the
and the orientation of key
mineralised structures is
considered to have introduced a
sampling bias, this should be
assessed and reported
Sample se- The measures taken to ensure - No chain of custody was documented by the
curity sample historical
- The chain of custody is assumed to be as per
industry best practice for
- For the 2017 RC drilling program, samples were
packaged into polyweave bags around 25 kg each,
then hand-delivered by 4WD ute by Spitfire
staff to a professional freight company in
Mareeba, who then delivered the samples to ALS
Townsville within 1-3 days.
Audits - The results of any audits or - A review of the historical sampling techniques
or reviews is
reviews of not
sampling techniques and data. possible.
- There has been no external audit or review of
Section 2 Reporting of Exploration Results
(Criteria listed in the preceding section also apply to this section.)
Criteria JORC Code explanation Commentary
Mineral - Type, reference name/number, - The Alice River Gold Project is secured by 14
tenement location and ownership tenements,
and including agreements or including 8 granted Mining Leases (MLs), 1 ML
land material issues with third application, and 8 Exploration Permits for
tenure parties such as joint ventures, Minerals
status partnerships, overriding (EPMs), for total of approximately 814 square
royalties, native title kilometres.
interests, historical sites,
wilderness or national park and - All tenements are in good standing.
- The security of the tenure
held at the time
reporting along with any known
impediments to obtaining a
licence to operate in
Explorati- Acknowledgment and appraisal - A summary of previous exploration is included b
on done of exploration elow.
other other parties. - 1903 - Gold mining commenced at Alice River
- 1903 to 1917 - Production of 3244 oz Au at
of around 38 g/t.
- 1987 to 1998 - Cyprus, Beckstar, Golden
Plateau, Goldminco and Subloo International
completed regional geochemical sampling
programs, rock chip sampling, RAB/auger
drilling, airtrack drilling, ground magnetic
surveys, IP & VLF- EM geophysical surveys,
costeaning programs and numerous drilling
programs (RC and diamond drilling). A number of
historical non-JORC resource estimations were
reported. The drilling data from the period is
considered to be
- 1999 to 2000 - A total of 2745 oz gold was
produced from 36,000 t of ore by
- 2001 - Beckstar entered into Administration in
2001 and Tinpitch
- 2012 - Tinpitch entered into administration.
- 2013 - Alice River Gold (ARG) acquired
ology - Deposit type, geological - The Alice River Gold Project lies within the
setting and Alice-Palmer Structural Zone. The gold
style mineralisation in the Alice River area is
of mineralisation. focused along regional NW shear zones. The
shear zones are largely hosted within the
Imooya Granite, a pale grey to white
mica-biotite leucogranite (commonly referred in
the old reports as an
of the Siluro-Devonian Kintore Supersuite. At
the north end of the project the shears
intersect gneisses and schists of the Sugarbag
Creek Quartzite, which forms
the lower part of the Mesoproterozoic Holroyd Met
- The gold-bearing shear zones extend
episodically for approximately 50 km strike
length. The gold mineralisation is generally
hosted in quartz veins, and
breccias, up to 10-15 m wide in places. Gold mineralisation is focused in linear pods up to
150 m strike
- Gold often occurs as both fine free-gold in quartz or interstitial within arsenopyrite
and stibnite. Green-white quartz-sericite-epidote alteration zones extend 50-70 m around
the mineralised veins some deposits but generally the quartz veins display narrow
alteration selvages. The weathered (oxide) zones at surface are
10 to 20 m deep.
- Minor pyrite and other fine-grained sulphides (e.g. arsenopyrite, stibnite) are present
as narrow bands in laminated quartz veins and disseminated with the quartz breccias. The
NW-trending quartz veins are sub-vertical to steeply dipping (approximately 80 degrees to
the southwest in places). There are other sub-parallel quartz veins, some of which are
mineralized, while some
- The gold mineralising fluids probably focused into dilatational structural zones (e.g.
fault jogs, cross faults and shears) within the adamellite, forming zones
stockwork veins and also mineralised breccias.
- Three gold genetic models are considered - intrusive related gold systems (IRGS), Low
Sulphidation Epithermal Gold and Orogenic Gold. More research
work is required.
Drill - A summary of all information - An Exploration Target was estimated by
hole material to the understanding of Spitfire from historical drill sample data
the exploration results collected by historical exploration companies
Informat including a tabulation of the between 1987 and 1998 and was outlined in a
ion following information for separate report. Drilling programs included
all Rotary Air Blast (RAB), Airtrack, Reverse
Material drill holes: Circulation (RC) and diamond drilling
o easting and northing of the techniques. Only Airtrack, RC and Diamond Drill
drill Hole data were used for the Alice River Gold
hole Exploration Target estimations, which includes
collar 469 holes for a total of 18,294.7 m drilling,
o elevation or RL (Reduced Level and 8,322 assay samples. RAB and Auger drill
- samples were not used in the Exploration
above sea level in metres) of estimation.
the drill - A table of historical drill hole collars and
hole historical drill intercepts was provided
collar previously within the Exploration Target
o dip and azimuth of the hole Report.
o down hole length and
interception - The recent RC drilling included a total of
depth 2,483 m drilling and 1741 assay samples,
o hole length. (including duplicates, blanks and standards). A
- If the exclusion of this table of the 2017 collar details and
information is justified on the mineralized drill intercepts is reported within
basis that the information is this report.
not Material and this exclusion
does not detract from the
understanding of the report, the - Additional twinning of historical holes is
Competent Person should warranted.
explain why this is the case.
Data agg- In reporting Exploration - The mineralized drill intersections are
regation Results, reported as down
methods averaging techniques, maximum hole intervals and were not converted to true
and/or minimum grade truncations widths. Where gold repeats were recorded, the
(eg cutting of high grades) and average of all the samples was used. True
cut-off grades are usually widths may be up to 50% less than drill
Material and should intersections pending confirmation of
be mineralisation geometry. The drill intercepts
stated. reported were calculated using a 0.5 g/t Au
- Where aggregate intercepts cut-off grade. Gold grade for the intercept was
incorporate calculated as a weighted average grade. Up to 4
short m (down hole) of internal waste (< 0.5 g/t
lengths of high grade results Au) was included
and longer lengths of in
low some cases.
grade - Metal equivalent values are not reported in
- results, the procedure used - Where available, sample recoveries were used
for such aggregation should be to weight assay
stated and some typical values,
examples of such aggregations elsewhere 100% sample recovery was assumed.
should be shown in
- The assumptions used for any
metal equivalent values should
Relations- These relationships are - The drilling was planned on local grid lines
hip particularly important oriented perpendicular to the
between in strike
the reporting of Exploration Res of the main shear zone.
mineralisults. - Drill holes were oriented to return the best
ation intersections of the mineralization, and
- If the geometry of the drilled in a perpendicular manner. The majority
widths mineralisation with respect of the drill holes were oriented roughly
and to perpendicular to strike (strike = 330), angled
intercep the drill hole angle is known, 55 to 70 degrees
t its nature should dip
lengths be towards 060 degrees, in order to intersect the
reported. steeply WSW dipping ore zones at a high
- If it is not known and only angle.
the down hole
lengths - The mineralised intercepts quoted in the
are reported, there should be a report are close to being perpendicular, but
clear statement to this effect are not
(eg down hole length, true true
Diagrams - Appropriate maps and sections - See diagrams in body of report.
(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
hole collar locations and
Balanced - Where comprehensive reporting - Due to the age of the historical drilling,
reporting of all Exploration Results is drill sampling and assaying (1987 to 1998), the
not practicable, representative Project Manager does not believe any of the
reporting of both low and high previously reported resource estimates can be
grades and/or widths should be reported as Mineral Resources under the current
practiced to avoid misleading 2012
Exploration Results. - Modelling of the 2017 drilling data in
conjunction with the historical drilling data
may lead to the reporting of a
Resource in the future, in accordance with the
requirements of the JORC 2012
Other - Other exploration data, if - The Alice River Gold Project includes a wide
substant meaningful and material, should range of additional historical exploration data
ive be reported including (but not including regional stream sediment geochemical
explorat limited to): data, soil
data geological observations; sample and rock chip data, geological mapping
geophysical survey results; data, RAB/auger drilling data, ground
geochemical survey results; magnetics, IP and VLF-EM geophysical survey
bulk samples - size and method data and costean data. Much
of treatment; metallurgical of
test results; bulk density, this data has been captured by White Geoscience
groundwater, geotechnical and into a new Alice River GIS database. The
rock characteristics; potential interpretation of this data
contaminating substances. - No density measurements were reported by the
historical exploration companies. Beckstar used
an SG of 2.5 for resource estimations in 1990,
- 2.65 for a second resource estimation in 1991.
- Metallurgical tests of selected mineralised samples including bottle roll cyanide leach
tests were conducted by Golden Plateau in 1994, Goldminco in 1999, and by Tinpitch in 2005
and 2006. Gravity concentration tests were also carried out by Goldminco in 1999. Bottle
roll cyanide leach testing work produced variable results. Some ore samples returned low
recoveries, whilst other samples produced high recoveries up to 90%. Further metallurgical
Further - The nature and scale of planned - Spitfire Materials Limited plan to conduct
work further work (eg tests for further exploration work including additional
lateral extensions or depth drilling programs to: 1) explore for lateral
extensions or large-scale and down
drilling). continuance of the known Alice River
- Diagrams clearly highlighting mineralization zones; 2) define Minerals
the areas of possible Resources in accordance with the requirements
extensions, including the main of the JORC 2012 Code; 3) explore regional
geological interpretations and exploration targets and anomalies present
future drilling areas, within the wider
this information is not area.
commercially - Further metallurgical work is also planned.
Für den Inhalt der Pressemitteilung ist der Einsteller, Spitfire Materials Limited, verantwortlich.
Unternehmensprofil: Spitfire Materials Limited
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