gold 1 8,77 t NA 8,77 t Small deposit iron t NA t Small deposit copper t NA t Small deposit

Transcription

1 Mineral Deposit Report Page 1 OF Kuervitikko Occurence type: deposit Commodity Rank Total Total production Total resource Importance measure 1 8,77 t 8,77 t Small deposit iron t t Small deposit copper t t Small deposit Easting EUREF: ,298 Easting YKJ: Northing EUREF: ,82 Northing YKJ: Discovery year: 1979 Discovered by: Rautaruukki Oy Province: Pajala-Kolari (Fe, Cu, Au) District: Kolari (Fe, Cu, Au) Comments: References: 1, 2, 3, 4, 5, 9, 10, 14, 16, 17 Mineral deposit type Group: Metallogenic deposit Main type: Magmatic hydrothermal Comments: This could be a case where the formation of magnetite skarn or ironstone "prepared ground": the a few metres to 140 m wide units of Fe-rich rock then formed a chemical trap and, perhaps, also a structural trap for auriferous solutions during peak deformation and metamorphism. Mineralisation took place from hypersaline fluids, under conditions of C, kbar. References: 3, 6, 7, 11 Group: Metallogenic deposit Main type: IOCG (mixed hydrothermal) Sub type 1: Breccia complex References: 3, 6, 7, 11 Dimension Expression: exposed Area (ha): Form: discordant Dip azim: 255 Shape: irregular Dip: 20 Length (m): 1200 Plunge azim: 245 Width (m): 500 Plunge dip: 20 Thickness (m): 50 Orientation method: Depth (m): Dimension comments: Kuervitikko comprises Fe-rich, Cu-rich and Fe-poor, Cu-rich areas, along with internal waste lenses. It measures 1.2 km along strike, 500 m across strike (at its widest point) and is <50 m thick. The mineralisation has a general strike of 165º and dip of between 5-20º towards the west, plunging at approximately 20º towards the southwest 1

2 Mineral Deposit Report Page 2 OF Holder history Current holder: Northland Mines Oy Years: Holding type: Claim (old law) Comments: Previous holders: Company Years Holding type Comments Northland Resources Ab 2005 Polar Mining Oy Outokumpu Oy Claim (old law) Rautaruukki Oy Claim (old law) Otanmäki Oy Suomen Malmi Oy

3 Mineral Deposit Report Page 3 OF EXPLORATION ACTIVITY Northland Resources Inc Years Activity type Geologist Exploration result Ref core drilling 14 Core drilling (reconnaissance drilling): 38 diamond drill holes, total 4311 m in 2007 and 84 diamond drill holes, total m in 2008 Intersections HoleID KUE07019 From-To 46,8-63,8 Length 17m 0,33ppm iron 40,6% copper 0,25% HoleID KUE07020 From-To 30,1-49,4 Length 19,4m 0,41ppm iron 48,5% copper 0,18% HoleID KUE07021 From-To 59,3-77,1 Length 17,9m 0,41ppm iron 35,5% copper 0,32% HoleID KUE07028 From-To 42,6-65,2 Length 22,6m 0,43ppm iron 29,2% copper 0,32% Years Activity type Geologist Exploration result Ref regional geophysics key geological features Low-altitude airborne magnetic, electromagnetic and radiometric survey ore deposit evaluation Veikko Keinänen resource assessment Veikko Keinänen regional geochemistry Regional geochemical till survey 3

4 Mineral Deposit Report Page 4 OF Rautaruukki Oy Years Activity type Geologist Exploration result Ref core drilling Aimo Hiltunen 6, 8 Core drilling (reconnaissance drilling): 49 diamond-drill holes, total 4770 m. Intersections HoleID From-To Length 8,1m 1,14ppm copper 0,9% iron 26,18% detailed geophysics Aimo Hiltunen 7 Good response on magnetic and gravity methods regional geophysics Aimo Hiltunen 4, detailed geology Aimo Hiltunen 4, excavation Aimo Hiltunen 4, detailed geochemistry Aimo Hiltunen 4, 7 Otanmäki Oy Years Activity type Geologist Exploration result Ref core drilling detailed geophysics 7 Good response on magnetic and gravity methods detailed geology 7 Suomen Malmi Oy Years Activity type Geologist Exploration result Ref core drilling regional geophysics detailed geology 7 Vuoksenniska Oy Years Activity type Geologist Exploration result Ref detailed geology 7 4

5 Mineral Deposit Report Page 5 OF detailed geophysics 7 Good response on magnetic and gravity methods. private enterprise Years Activity type Geologist Exploration result Ref detailed geology 7 Several small companies (mid-1600 to 1930's): bedrock mapping and attempt to mine the Juvakaisenmaa Fe-only deposit 18 km SW of Kuervitikko 5

6 Mineral Deposit Report Page 6 OF RESOURCES AND RESERVES Most recent Type: Company: Year: Date: Calc Method: Reference: Resource Northland Resources Ab 2012 CIM standards 16 Comments: Effective date 24 October Measured mineral resource 36 Mt iron 22,82 % copper 0,19 % 0,21 ppm Cutoff: Indicated mineral resource 6 Mt iron 21,69 % copper 0,16 % 0,172 ppm Cutoff: Inferred mineral resource 1 Mt iron 22,87 % copper 0,15 % 0,196 ppm Cutoff: Measured, indicated and inferred mineral resource 43 Mt 0,204 ppm iron 22,663 % copper 0,185 % Cutoff: Previous calculations Type: Company: Year: Date: Calc Method: Reference: Reserve Northland Resources Ab 2012 CIM standards 16 Comments: Effective date 24 October Proved ore reserves 21,9 Mt iron 23,6 % copper 0,183 % 0,216 ppm Cutoff: Probable ore reserves 0,3 Mt iron 23,8 % copper 0,177 % 0,194 ppm Cutoff: 6

7 Mineral Deposit Report Page 7 OF Proved and probable ore reserves 22,2 Mt 0,216 ppm iron 23,603 % copper 0,183 % Cutoff: Type: Company: Year: Date: Calc Method: Reference: Resource Northland Resources Inc 2010 NI Inferred mineral resource 45 Mt 0,17 ppm copper 0,16 % iron 22,9 % Cutoff: iron 15 % Type: Company: Year: Date: Calc Method: Reference: Resource ,7 Mt 0,46 ppm copper 0,39 % iron 40,2 % Cutoff: Type: Company: Year: Date: Calc Method: Reference: Resource Geological Survey of Finland 1,2 Mt 1 ppm iron 36 % copper 0,3 % Cutoff: 7

8 Mineral Deposit Report Page 8 OF GEOLOGY Host rock: Diopside Skarn, Quartz vein, Magnetite Skarn Diopside Skarn (Host rock) Rock type: Host rock Proportion: major Grain size: Color: References: 3, 6, 7, 11, 12, 13 Comments: All ore bodies are hosted by the country rocks of the pluton, apparently are stratiform lenses, and seem to have a structural control. Two Au-Cu lodes and two Fe-Cu-Au lodes. Ore minerals: Mineral Proportion Mineral texture Chalcopyrite major Dissemination, Stringer Gold present Associated with chalcopyrite. Magnetite major Banded, Massive Molybdenite minor Pyrite major Stringer, Dissemination Pyrrhotite major Stringer, Dissemination Other minerals: Mineral Proportion Mineral texture Albite present Amphibole present Alteration product Biotite present Chlorite present Diopside present Epidote present Garnet present Alteration product Hornblende present Microcline present Plagioclase present Alteration product Quartz present Scapolite present Alteration product Alteration: Distribution: Degree: Relation to mineralization: albitic alteration biotite alteration calcsilicate alteration Metamorphic description: Type: Facies: Degree: Relation to mineralization: Regional greenschist medium metamorphic facies metamorphic grade Comments: Regional metamorphism possibly peaked during the D2 stage of deformation. Min P- Max P (kbar) MIn T- Max T ( C) 8

9 Mineral Deposit Report Page 9 OF Geological age: Geological era: Max age - Minage Inferred age (Ma): Age of mineralization: (Ma): Paleoproterozoic ( Ma) Y Comments: Mineralisation took place between 1.86 and 1.76 Ga. Quartz vein (Host rock) Rock type: Host rock Proportion: minor Grain size: Color: References: 7 Comments: Quartz and carbonate veins Magnetite Skarn (Host rock) Rock type: Host rock Proportion: minor Grain size: Color: References: 3, 6, 7, 11, 12, 13 Comments: Endoskarns are minor, are known to host only low-grade sulphide mineralisation, and are characterised by the formation of albite with minor hornblende and diopside in the (monzo)dioritic marginal unit of the pluton. Metamorphic description: Ore minerals: Mineral Proportion Mineral texture Magnetite present Alteration product Other minerals: Mineral Proportion Mineral texture Actinolite present Alteration product Diopside present Alteration product Tremolite present Alteration product Type: Facies: Degree: Relation to mineralization: Regional greenschist medium metamorphic facies metamorphic grade Comments: Regional metamorphism possibly peaked during the D2 stage of deformation. Min P- Max P (kbar) MIn T- Max T ( C) Figures 9

10 Mineral Deposit Report Page 10 OF Regional geology: Regional geology: 10

11 Mineral Deposit Report Page 11 OF Structure: Regional geology: 11

12 Mineral Deposit Report Page 12 OF Local geology: Wall rocks of the Kolari ores: 12

13 Mineral Deposit Report Page 13 OF Regional geology: 13

14 Mineral Deposit Report Page 14 OF Native in gangue: 14

15 Mineral Deposit Report Page 15 OF Native in gangue: Alteration: 15

16 Mineral Deposit Report Page 16 OF Regional geology: 16

17 Mineral Deposit Report Page 17 OF REFERENCES 1. Eilu, P. (ed.) Iron oxide-copper- excursion and workshop, Northern Finland and Sweden , Report M 10.3/2004/1/ p Ore Deposit Data Base. 3. Hiltunen, A The Precambrian geology and skarn iron ores of the Rautuvaara area, northern Finland., Bulletin p Hugg, R. & Heiskanen, V Suomen rautamalmiesiintymät, malmiutumat ja malmiviitteet. Rautaruukki Oy OU 2/79, RAETSU Report p. (in Finnish) 5. Hölttä, P., Väisänen, M., Väänänen, J. & Manninen, T Paleoproterozoic metamorphism and deformation in Central Lapland, Finland., Special Paper 44, Keinänen, V Tutkimustyöselostus Kolarin kunnassa valtausalueella Kuervitikko 1 (Kaivosrekisterinumero 5082/1) suoritetuista kulta-kuparimalmitutkimuksista vuosina , Report M06/2714/-95/1/10. 2 p. (in Finnish) 7. Keinänen, V Personal communication on 19/8/ Korkalo, T Gold and copper deposits in Central Lapland, northern Finland, with special reference to their exploration and exploitation. Acta Univ. Oulensis, A Scientiae Rerum Naturalium p. 9. Lehtonen, M., Airo, M.-L., Eilu, P., Hanski, E., Kortelainen, V., Lanne, E., Manninen, T., Rastas, P., Räsänen, J. & Virransalo, P Kittilän vihreäkivialueen geologia: Lapin vulkaniittiprojektin raportti. Summary: The stratigraphy, petrology and geochemistry of the Kittilä greenstone area, northern Finland: a report of the Lapland Volcanite Project., Report of Investigation p Moilanen, M. & Peltonen, P The Hannukainen Fe-(Cu-Au) deposit, western Finnish Lapland: an updated deposit model. In: Maier, W.D., Lahtinen, R. & O'Brien, H. (eds) Mineral deposits of Finland. Amsterdam: Elsevier, Niiranen, T., Poutiainen, M. & Mänttäri, I Geology, geochemistry, fluid inclusion characteristics, and U-Pb age studies on iron oxide-cu-au deposits in the Kolari region, northern Finland. Ore Geology Reviews 30, Niiranen, T Locality 2. Hannukainen. In: Eilu, P. (ed.) Iron oxide-copper- excursion and workshop, Northern Finland and Sweden , Report M 10.3/2004/1/ Niiranen, T Personal communication in 18/10/

18 Mineral Deposit Report Page 18 OF Northland Resources Inc. Press Release May 07, Northland Resources Press release 12 May SRK Consulting Ltd Technical report on the Hannukainen iron-copper- project, Kolari district, Finland, January Prepared for Northland Mines Oy. 17. Väisänen, M Structural features in the Central Lapland greenstone belt, northern Finland., Report K 21.42/2002/3. 20 p. 18