Greenland mineral exploration: Projects; Prospects; Potential - Chief Geologist Henrik Stendal PDAC 6 March 2017 - Greenlands minerals authority
←
→
Page content transcription
If your browser does not render page correctly, please read the page content below
Ministry of Mineral Resources
Greenland mineral exploration:
Projects; Prospects; Potential
Chief Geologist Henrik Stendal
PDAC 6 March 2017
Outline
Mining projects
Exploration projects
Prospects
Potential regions
Concluding remarks
Tekst skrives ind i sidehoved/sidefod 01-03-2017 2
Mining Projects
Zinc/lead (Citronen Fjord)
Presentation by Ironbark Zinc
Anorthosite
(Najaat, ‘White Mountain’)
Presentation by Hudson Resources
?
Rubies/Sapphires (Fiskenæsset; LNSG)
Isukasia (Isua; General Nice Group)
London Mining Greenland A/S
(General Nice Group)
Iron ore project
Exploitation license signed October 2013
More than1 billion tonnes of JORC Fe
resources
32-33 % Fe will be concentrated up to 70
% quality iron product
Project progress uncertain!
01-03- 4
The Aappaluttoq Ruby Project
LNS Greenland GEMS A/S
(Fiskenæsset)
• Ruby/Sapphire project
• Exploitation license applied August 2013
• Exploitation license granted March 2014
• In this case only a seven months processing period
• Impact Benefit Agreement signed June 2014
• Construction commenced in 2015 by True North Gems
• October 2016 taken over by LNS Greenland GEMS A/S
• Production starts in 2017
Tekst skrives ind i sidehoved/sidefod 01-03-2017 5
Ruby/Sapphire Resource –
The Aappaluttoq Ruby Project
Indicated resource: 189,100 t @ 313 g/t corundum (296.5 mio. carats)
Inferred resource: 77,200 t @ 283 g/t corundum (109.5 mio. carats)
Amount of near-gem and gem quality: 31.3% ruby and 40.8% sapphire
Source: True North Gems
Exploration Projects
Titanium-Vanadium Placer
(Pituffik Black Sand; Bluejay
Mining/FinnAust Mining) Zinc-lead
(Mestersvig; Ironbark Zinc)
Zinc, lead, silver
(Black Angel) PGE + Gold
Presentation by ARC Mining (Skaergaard; Platina Resources)
Graphite (Akuliaruseq; 21stNorth) Gold-silver
(Flammefjeld; 21stNorth)
Nickel, PGE Gold (Storø;
(Maniitsoq) Greenland
Presentation by North American Nickel Resources)
Niobium-Tantalum + Zr + REE
Titanium-Vanadium; Anorthosite (Motzfeldt Sø; Regency Mines)
(Fiskenæsset; 21stNorth)
Zirconium + REE
REE + U
(Kuannerusit /Kvanefjeld) (Killavaat Alannguat /Kringlerne)
Presentation by GMEL Presentation by Tanbreez
Graphite Gold
(Amitsoq) (Nalunaq)
Presentation Alba Resources Presentation by ARC Mining
Thule black sand
Pituffik black sands
province
Ti – V – (Co)
Source: John Ferguson
. 2
Source: FinnAust Mining 2016
Graphite
Updated indicated resource of 12.6 Mt grading Akuliaruseq
6.31% Cg including 2.8 Mt grading 12.00% Cg
based on 2015 drill core sampling. New
resource is >50% larger than historic estimates
and still open at depth (21stNorth 2016)
Former mines
Areas with graphite
occurrences
Amitsoq
Storø Gold Project
(85% ownership)
Former knowledge (Nunaminerals 2012)
Qingaaq prospect Aappalaartoq prospect
BD Zone Main Zone (open pitable)
• 60 x 400 m surface target
• Best drill intersect 28 m @ 6.7 g/t Au
BD Zone
Deep
tidewater
BD Zone (limited drilling)
• >1000 m strike length defined at Qingaaq
Main • >4 km possible strike length
Zone
• Best drill intersect: 2 m @ 30 g/t Au
Hole-ID From To Interval Au g/t
DDH15-01 63.00 - 64.25 1.25 6.36
DDH15-01 65.88 - 66.38 0.50 2.23
DDH15-02 62.00 - 63.94 1.94 1.51
DDH15-03 71.00 - 85.03 14.03 4 .11
Including
DDH15-03 79.00 - 81.00 2.00 18.20
Present knowledge 2015/2016
Greenland Resources Inc. new drilling
for deep target zone and new inferred 95.000 ounces of gold averaging 3.4 g/t Au in the
resource (NI 43-101). Inferred Mineral Resource category.Fiskenæsset
Anorthosite
Inferred resource of >500Mt including a low-alkali target resource of >55Mt
grading: 33.02% Al2O3, 17.57% CaO, 1.04% Fe2O3, 1.52% Na2O and
0.17% K2O.
The very high aluminum and exceptionally low alkali content makes the
anorthosite ideal for production of E-glass fibre glass (21stNorth 2016).
.
Sinarsuk Fe-Ti-V
Titanium-vanadium mineralisation at Sinarsuk is exposed on surface for
>13 kilometers following a significant aeromagnetic NW-SE striking
signature.
Grade/tonnage estimates based on current knowledge indicates a >100Mt
deposit with a in-situ value in excess of 10 US$bn(21stNorth 2016).
Map: GEUS – www.greenmin.glNiobium – Tantalum + Zr + REE
100% owned by Regency Mines plc – the
Motzfeldt hosts one of the world’s largest
undeveloped multi-element (Niobium
(Nb), Tantalum (Ta), Zirconium (Zr) and
Rare Earth Elements (REE)) deposits.
Motzfeldt has numerous targets including
the Aries Target where SRK reported a
JORC Inferred Mineral Resource
Estimate of 340 mt @ 120 ppm Ta2O5,
1850ppm Nb2O5 and 4.600 ppm ZrO2.
Mineralisation is believed to be open to
the south and east (Regency Mines
2017).
Syenitic alkaline rocks
(Motzfeldt Sø)Flammefjeld
Ag-Au-Pb-Zn-Cu vein mineralisation
Limited exploration work indicates that the
veins may be traced for several kilometers
having an average grade of 0.45g/t Au, 135g/t
Ag, 0.58% Cu, 5.81% Pb and 1.35% Zn.
The average metal value of Yellow Zone and
Misty Vein is 285 USD/t (2015 prices) equivalent
to 6.8 g/t Au.
Conceptual modelling assuming continuity
between Yellow Zone and Misty Vein suggest in-
situ metal value in excess of $3 billion down to
200 m depth.
Source: 21st North, 2015
30 m
Misty Vein outcrop looking towards Yellow Zone across
Flammefjeld GlacierSkaergaard
gold and palladium reefs
Troels Nielsen, GEUS
JORC code (2012):
203Mt @ 0.88g/t gold & 1.33g/t palladium
(Platina Resources Ltd. 2015)Blyklippen Mine, Mestersvig
15Mestersvig Zinc-lead The Mestersvig Base Metal Project in eastern Greenland comprises three 100% Ironbark owned exploration licences which contain the historic high- grade Blyklippen Zinc-Lead Mine and the outcropping Sortebjerg Zinc-Lead Prospect (www.ironbark.gl). Sortebjerg vein 16
Prospects
Banded Iron Formation (BIF)
(Melville Bugt)
Tungsten-antimony
(Ymer Ø)
Molybdenum
(Malmbjerg)
Diamonds (Maniitsoq-
Kangerlussuaq region)
Olivine
(Seqi)
Gold
(SE Greenland)
Titanium-Vanadium
(Isortoq)
Gold
(South Greenland)Banded Iron Formation (BIF)
Melville Bugt (Thule)
• BIF occurs both as banded and
massive hematite and magnetite.
• The BIF is of same age and ore type
as the St. Mary River BIF on Baffin
Island.
• Assays returned couraging results Tungsten Ymer Ø
for all targets defind by geophysical
anomalies (Nama Report 2012).
Porphyry Molybdenum MalmbjergDiamond Exploration
Garnet Lake
Kimberlite dyke
Extracted a total of 1,740 macrodiamonds (>0.85 mm in 3 dimensions)
>100 carats recovered
The largest diamond is 2.5 carat
Colors: Most are colorless, but also pink, grey and amber colored
Discovered by Hudson Resources Inc.
Map: GEUS
Photos by Hudson Resources Inc.Olivine Mine
Close to Nuuk (90 km) and
Maniitsoq (82 km)
Nuuk• Production from August 2005
– 2009. ~400.000 tons (2009)
• Resource: More than 100 mill.
tons olivine (Pure forsterite)
• Resource for magnesium –
magnesite (MgCO3)
The licence will soon be delivered
back . A new licence round will be
announced by the Government of
Seqi Olivine Mine GreenlandMagnetite with Ti – V
Isortoq
Resource FeO% TiO2% V2O5%
1.18 Bt (in-ground) 62.6 19.1 0.32
Magnetite ore body
22South Greenland - gold potential
Taartoq
Potential gold field
Qoorormuit Kutseq
Ippatit
Nalunaq
Lake 410
Vagar
Nalunaq Gold MineAmphibolite Rigde – Vagar - Gold
2013:
Four channel sample profiles
across the Vein 2 gold
mineralised structure all
intersected high grade gold
mineralisation including some
exceptional intervals, yielding
up to 13 metres @ 70.1 g/t
gold (with visible gold identified
in several of the samples).
Rock grab samples from the
same structure have returned
up to 2533 g/t gold, which
constitutes the highest grade
ever to be reported from the
Vagar licence area.
Nunaminerals press release September 18, 2013
Source: Nunaminerals 2013Tungsten and Molybdenum
Tungsten Ymer Ø
Porphyry Molybdenum MalmbjergPotential regions
for commodities
• Nickel
• Gold
• Zinc
• REE
• Niobium – Tantalum
• GemstonesPotential nickel regions
Zig-Zag Dal
Flood
basalts
Noril’sk nickel potential
Three flood basalt regions
~26.000 km2 flood basalt
Numerous larger magmatic systems
and voluminous sill-dyke swarms
West
Greenland throughout Greenland
Flood Source: GEUS 2012
basalt province East
Greenland
Flood basalt
province
Maniitsoq Tasiilaq norites
norite belt
Fiskenæsset
Gardar dykes
400 kmGold (Au)
6 Greenstone type (Archaean)
1. Nuussuaq (Eqi, Itilliarsuk and Saqqaq)
2. Storø, Qussuk
3. Sermiligarsuk (Tartoq Group)
1
Orogenic type (Palaeoproterozoic)
7 4. Nalunaq Gold Mine
5. Kangerluluk
6. Inglefield Land
2
3 5
4
Magmatic - gabbro
7. Skaergaard (+ Pd and Pt)
28Zinc Provinces
Zinc/lead (North Greenland)
1600
90% Zn
Samples: 12027
70% Minimum: 2.5600
Maximum:1786.4300
Mean: 80.4638
800 50% Geo.Mean: 66.3059
Median: 68.0000
Mode: 47.0000
Kangerluarsuk 30%
Std.Dev.:
Std.Err.:
Skew:
Kurtosis:
68.67
0.6261
7.99
126.2
Prospect –
10%
0
0 500
Karrat Group
(2015)
Zinc/lead/silver
(Black Angel Mine,
Maarmorilik, FBC A data zinc package is
Mining) available at:
www.greenmin.gl and
www.geus.dk
Zn > 200 ppm
250 km
Modified from Steenfelt, GEUS 2011Niobium - Tantalum
Nb-REE (Sarfartoq)
Carbonatite
Nb-Ta-REE (Motzfeldt Sø)
Syenitic alkaline rocks
Nb-REE (Qeqertaasaq)
CarbonatiteGemstones
Concluding remarks
The geological environments and the related mineral deposits are in
many ways similar to that found world-wide, meaning that the potential
for new mineral discoveries are good and can sustain mining.
Two mines will start production in 2017: Ruby/sapphire and feldspar.
Exploration activity at present: Nickel, zinc, titanium-vanadium, gold,
graphite, niobium-tantalum and gemstones.
Future mines(?): Zinc, REE, gold, titanium-vanadium and nickel.
Photo: A. Clausen, MIMRYou can also read
