Geology’and’Mineral’ Resources’of’Madagascar’ - Madagascar.pdf ·...

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Geology and Mineral Resources of Madagascar RAZAFIMANDIMBY Olivier Ministry of Mines Madagascar Dr RASOAMALALA Vololonirina Director of Geology Ministry of Mines MINE AFRICA , March 6th, 2012 Toronto Canada

Transcript of Geology’and’Mineral’ Resources’of’Madagascar’ - Madagascar.pdf ·...

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Geology  and  Mineral  Resources  of  Madagascar  

RAZAFIMANDIMBY  Olivier  Ministry  of  Mines    Madagascar      

Dr RASOAMALALA Vololonirina Director of Geology Ministry of Mines

MINE AFRICA , March 6th, 2012 Toronto Canada

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 1  –  Introduction  2  –  Location  of  Madagascar  3  –  History  and  available  data    4  –  Geology  and  structure  results    5  –  Geology  in  the  JICA  Madagascar  Study  area  6  -­‐  Base  metal  knowledge  Madagascar  7-­‐  Mineralization  in  the  JICA  Madagascar  study  Area    8  -­‐  Actual  context  of  mining  sector  ,  Legal  framework  and  Regulations  

9  -­‐  Key  messages      

Outline of presentation

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2-­‐  LOCATION  OF  MADAGASCAR  

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1937 -1970 : Madagascar Geological Survey in charged of Henri Besairie with BRGM activities produced - 452 geological maps (1/100 000) covered all of Madagascar within 93 provisional maps - 1964: Synthesis map at 1/1.000.000 - 1970: Synthesis map 1/500.000 These synthesis based on lithology and stratigraphy

3- HISTORY AND AVAILABLE DATA

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2002: PGRM revised some area in Madagascar: A, B, C, D, E, F

2008: 114 geological maps

updated (1/100.000) 2008: JICA Madagascar project

carried out Some area in the south of Madagascar

2011: 8 Geological maps updated (1/100.000)

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: Provisional maps : Maps updated

PGRM JICA projects

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COMING SOON

New synthetic and coherent global vision of the crystalline basement (1/ 1 000 000) will be available on June 2012

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Magnetic survey and gamma-spectrometric of geological area (1/100.000 and some part of C area: 1/500 000) by PGRM Magnetic maps : A – B- C – D – E- F Radiometric maps: B- C – D- E – F gamma-spectrometric maps: B - D – E – F , partie de la zone C (1/500 000)

A

B

C

D

E

F

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4- GEOLOGY AND STRUCTURE RESULTS 2008: After different university researches based in the first interpretation, with tectono – metamorphic data.The last geology interpretation of geology of Madagascar (PGRM, 2008):  

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Two geological entities: -  2/3: The Precambrian crystalline formations (the 'crystalline basement') composed of five blocks (PGRM, 2008)

-  1/3: the Phanerozoic, non-metamorphosed sedimentary formations (the 'sedimentary cover').

A- GEOLOGY

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Sedimentary cover The extreme south of the island (in three areas:Ambilobe, Majunga and Morondava, the latter being a very small area close to the eastern coast); and areas of Neogene sediments away from the coast (including Ankay-Alaotra, Antanifotsy, Sambaina and Vinanikarena).

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Antongil  block,  comprising  :  early  Archaean  granites,    granodiorites,    migmaEtes  and  gneisses,    Non  affected  by  panafrican  orogeny  Antananarivo  block:  :  Late  Archean  gneiss  and  migmaEte,  granitoids,    greenstone  belts:  Maevatanana,  Andriamena,  Befandriana,  Alaotra  and  Brickaville  regions    

Crystalline basment

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             Itremo  –  Ilkalamavony  –  Taolagnaro  block,  comprising  :  quartzite,  schist,  carbonate,  mafic  gneiss  and  métamorphosed  equivalent      Bemarivo  belt:  comprising  neoproterozoic  calc-­‐alkaline  volcanics,  intrusives,  sedimentary  rocks  and  clasEc  rocks      Vohibory  Unit:  Graphite  and  Androyan  Sequences  granulite,  charnockite,marble,  and  undiferenEated  amphibolite  facies  rocks.                      

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B- STRUCTURE The main structures: - Angavo-lfanadiana shear-zone. - Bongolava-Ranotsara structure (after gamma spectometry and magnetic data, Bongolava – Ranotsara not defined like a fault - Three shear-zones in the south (Ampanihy,Voronkafotra, and Tranomaro).

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2 domains: - Androyan domain (west part) - Anosyan domain (East part)

- Separated by Voronkafotra shear zone

Phanerozoic    cover  

Ampanihy SZ

Voronkafotra SZ Tranomaro SZ

5- GEOLOGY IN THE JICA MADAGASCAR STUDY AREA

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Phanerozoic    cover  

Ampanihy SZ

Voronkafotra SZ

Tranomaro SZ

Androyan domain: affected by 2 orogenies : 620-610MY and 570-520MY Lithology: Leptynites rich in graphite and garnet, gneisses with amphibole, amphibolite, marble, quartzite Caracterised by 2 anorthosites massives

(Ankafotia, Saririaka, Volovolo).

Anosyan domain : Affected by 570-520 MY orogeny Lithology: Leptynite with garnet and cordierite ,

pyroxenites, marble, quartzites

Important granitisation (Anosyan granite)

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Andavakoera Gold Iharana

copper

Ilmenite Beaches

20Mt

Andriamena Chromite

7,9Mt Ilmenite Beaches

12Mt

Maevatanana Gold

Antananarivo

Toamasina

Antsiranana

Mahajanga

Toliara

Fianarantsoa

Tolagnaro Ambovombe

Morondava

Maintirano

Maevatanana

Antsirabe Nickel-Cobalt laterite 1,2Mt

Soalala Iron 134Mt

Ranobe Ilmenite

40Mt

Bekisopa Iron 30Mt

Tolagnaro Ilmenite

75Mt

Manantenina Bauxite 195Mt

Manantenina

Farafangana

Farafangana Bauxite 98Mt

Sakoa Coal

6  Base  metal  knowledge  of  Madagascar  

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7  MineralizaLon  in  the  JICA  Madagascar  study  area  

Phan

eroz

oic

cov

er

Ampanihy sz : garnet, sillimanite The intra sz : garnet, graphite Voronkafotra sz : phlogopite East Voronkafotra sz : sillimanite, cordierite, monazite, zircon, thorianite, gold, phlogopite Black tourmaline, corundum, beryl, and crystal

Ampanihy sz Voronkafotra sz Tranomaro sz

Unknown mineral

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8  Actual  context  of  mining  sector  ,  Legal  framework  and  RegulaLons   We    have  a  vast,  untapped  mining  potential    

 Madagascar  legal-­‐regulatory  environment  is  extremely  investor  friendly  

 Our  public-­‐private  partnership  are  designed  to  jumpstart  new  exploration  and  value  added  

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INVESTOR-­‐FRIENDLY  LEGAL  AND  REGULATORY  FRAMEWORK  

With  Our  Mining  Code      -­‐  All  investors  on  equal  footing  ;      -­‐  Progressive  licensing  (prospecting,  exploration,  mining  )  ;  

 -­‐  Licenses  withdrawn  only  for  non-­‐payment  of  fees  

 -­‐  Mining  licences  grant  based  on  the  principe  “First  come  first  served”  managed  be  The  Mining  Cadastre  Bureau  with  a  computerized  and  transparent  system  

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INVESTOR-­‐FRIENDLY  LEGAL  AND  REGULATORY  FRAMEWORK  

An  another  advantage  :  LARGE  SCALE  MINING  INVESTMENT  LAW  

 Tax  incentives  :  5  years  moratorium  followed  by  reduced  income  taxes  for  mining  operations  (25%)  and  processing  operations  (10%)  

 International  arbitration  clause     Duty-­‐free  equipment  imports…    

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Heavy  Oil  

Exploration  pétrolière  

Main Hydrocarbon and Mining Companies

Madagascar  Minerals  and  Resources  

Chromite Mine

Nickel & Cobalt Project

Ilménite Project

Ilménite Project

Bauxite  

Coal  

Ambatovy  

WISCO

Construction completed on 2010

Production started since 2009

Recent investments RIO TINTO : 1 Bn $US AMBATOVY PROJECT : 5.5 Bn $US WISCO : 8Bn $US

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9 KEY MESSAGES

MADAGASCAR MINING SECTOR IS WAITING FOR YOU, BRING YOUR EXPERIENCE, AND WE WIN TOGETHER MADAGASCAR NEW HORIZON FOR

MINING

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THANK  YOU  FOR