URANIUM EXPLORATION IN BRAZIL Planning, Search and Results URANIUM EXPLORATION IN BRAZIL Planning, Search and Results Geologist Marcos Antonio de Oliveira IAEA/INB TECHNICAL MEETING Salvador/Caetité – Brazil Nov. 24th-28th Geologist Marcos Antonio de Oliveira IAEA/INB TECHNICAL MEETING Salvador/Caetité – Brazil Nov. 24th-28th
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URANIUM EXPLORATION IN BRAZILPlanning, Search and Results
URANIUM EXPLORATION IN BRAZILPlanning, Search and Results
Geologist Marcos Antonio de OliveiraIAEA/INB TECHNICAL MEETING
Salvador/Caetité – BrazilNov. 24th-28th
Geologist Marcos Antonio de OliveiraIAEA/INB TECHNICAL MEETING
Salvador/Caetité – BrazilNov. 24th-28th
Organization of the Brazilian Nuclear SectorOrganization of the Brazilian Nuclear Sector
Ministry of Science and Technology
Ministry ofMines and Energy
Presidency of the Republic
Comissão Nacionalde Energia Nuclear
NuclebrásEquipamentosPesados S.A
IndústriasNucleares
do Brasil S.A.Eletronuclear
S.A.
Centrais ElétricasBrasileiras S.A.
METHODOLOGY OF URANIUM EXPLORATION (PHASES)
METHODOLOGY OF URANIUM EXPLORATION (PHASES)
1.SELECTION OF AREAS: BIBLIOGRAPHIC REVIEW ANALYSIS OF AVAILABLE DATA AEROPHOTOGEOLOGY
RESULT: AREAS FOR PROSPECTING
2.REGIONAL PROSPECTING: CARBORNE SURVEY (RADIOMETRY WITH VEHICLE)
AIRBORNE (AERORADIOMETRIC AND AEROGEOPHYSICAL COVERS)
GEOCHEMISTRY ( DETERMINATION OF URANIUM TRACES)
RESULT: POTENTIAL AREAS
1.SELECTION OF AREAS: BIBLIOGRAPHIC REVIEW ANALYSIS OF AVAILABLE DATA AEROPHOTOGEOLOGY
RESULT: AREAS FOR PROSPECTING
2.REGIONAL PROSPECTING: CARBORNE SURVEY (RADIOMETRY WITH VEHICLE)
AIRBORNE (AERORADIOMETRIC AND AEROGEOPHYSICAL COVERS)
GEOCHEMISTRY ( DETERMINATION OF URANIUM TRACES)
RESULT: POTENTIAL AREAS
URANIUM IN BRAZILURANIUM IN BRAZIL
3.DETAILED PROSPECTING: FOLLOW-UP(GROUND SURVEY BY PORTABLE SCINTILLATION COUNTER TO CONFIRMATE ITS EXPRESSION ON THE FIELD.)
RADIOMETRIC MAPPING GEOLOGICAL MAPPING GEOCHEMISTRY (DETERMINATION OF URANIUM TRACES) GEOPHYSICS (DETERMINATION OF MINERALISED
STRUCTURES)
RESULT: EVIDENCES OF URANIUM
4.DRILLING AND EVALUATION : TOPOGRAPHY-RADIOMETRY GEOPHYSICAL-GEOLOGY TRENCHES AND WELLS DRILLING AND LOGGING CHEMICAL ANALYSIS (GRADES) RESERVES CALCULATIONS UNDERGROUND WORKS PROCESSING (PILOT PLANT) ECONOMIC FEASIBILITY STUDIES
RESULT : ORE DEPOSIT
3.DETAILED PROSPECTING: FOLLOW-UP(GROUND SURVEY BY PORTABLE SCINTILLATION COUNTER TO CONFIRMATE ITS EXPRESSION ON THE FIELD.)
RADIOMETRIC MAPPING GEOLOGICAL MAPPING GEOCHEMISTRY (DETERMINATION OF URANIUM TRACES) GEOPHYSICS (DETERMINATION OF MINERALISED
STRUCTURES)
RESULT: EVIDENCES OF URANIUM
4.DRILLING AND EVALUATION : TOPOGRAPHY-RADIOMETRY GEOPHYSICAL-GEOLOGY TRENCHES AND WELLS DRILLING AND LOGGING CHEMICAL ANALYSIS (GRADES) RESERVES CALCULATIONS UNDERGROUND WORKS PROCESSING (PILOT PLANT) ECONOMIC FEASIBILITY STUDIES
RESULT : ORE DEPOSIT
URANIUM IN BRAZILURANIUM IN BRAZILMETHODOLOGY OF URANIUM EXPLORATION
(PHASES)METHODOLOGY OF URANIUM EXPLORATION
(PHASES)
BRIEF HISTORY OF URANIUM EXPLORATION IN BRAZIL
BRIEF HISTORY OF URANIUM EXPLORATION IN BRAZIL
URANIUM IN BRAZILURANIUM IN BRAZIL
PERIOD EXECUTOR ACTIVITIES OCCURRENCES/MINES1952 – 1955 Conselho Nacional de
1956 – 1960 Cooperação Americana CNEN / CNPq / USGS
Aerocintilometria: 77.000 Km Sondagem: 6.000 m
Urânio nas Bacias Sedimentares do Parnaíba-PI; Tucano-BA e Paraná-PR.
1961 – 1966 Cooperação Francesa CNEN / CEA
Aerocintilometria: 94.000 Km Sondagem: 7.700 m
Urânio na Bacia do Jatobá-PE; Urânio associado ao molibdênio, em Poços de Caldas-MG.
1967 – 1974 CNEN (CBTN) Aerocintilometria: 45.000 Km Sondagem: 26.000m
Avaliação de reservas em Araxá-MG e Olinda-PE; Cubagem de reservas no Planalto de Poços de Caldas-MG (Depósito de Agostinho).
1975 – 1988 NUCLEBRÁSAerogamaespectrometria: 612.707 Km Sondagem: 336.043 m Implantação do CIPC (1976)
Descoberta das jazidas /depósitos; Amorinópolis e Rio Preto-Go (1975); Planalto de Poços de Caldas (Depósito de Cercado); Itataia-CE (1976); Lagoa Real-BA (1977); Rio Cristalino (1978).
1989 – Atual INB Sondagem: 25.731 m Implantação da URA (1999)
Extensão de Jazidas da Província Uranífera de Lagoa Real
RESOURCE CATEGORYCOMPANY YEARMES. + IND. INFERRED TOTAL
a Toneladas métricas de U3O8b As reservas relativas aos projetos desativados foram inseridas na classe inferida Reserva Medida+Indicada – Equivale a Recursos Razoavelmente Assegurados Reserva Inferida – Equivale a Recursos Adicionais Estimados (AIEA)
URANIUM IN BRAZILURANIUM IN BRAZIL
•PB
•RR •AP
•AM
•AC
•PA
•RO•MT
•MS
•MA
•TO
•GO•MG
•BA
•SP
•PR
•SC•RS
•ES
•RJ
•DF
•SE
•RN
•PE•AL
•PI•CE
FIGUEIRA
RIOCRISTALINO
STA. QUITÉRIA
ESPINHARASNUCLAM
LAGOA REAL
QUADRILÁTERO FERRÍFERO
POÇOS DE CALDAS
AMORINÓPOLIS
CAMPOS BELOSRIO PRETO
LOCATION OF URANIUM DEPOSITSLOCATION OF URANIUM DEPOSITSURANIUM IN BRAZILURANIUM IN BRAZIL
POÇOS DE CALDAS – MGAssociação urânio, molibdênio, zircônio, potássio. Rocha Hospedeira: Tinguaíto e Rochas vulcânicas (alcalinas) - "Pipe em Brecha de Colapso / Rollfront". Bem Mineral: urânio, molibdênio, zircônio e rocha potássica.
FIGUEIRA – PR (Bacia do Paraná)Ocorrência carbonífera com urânio associado, em arenitos e rochas carbonosas (siltitos e carvões). Bem Mineral: urânio, molibdênio.
QUADRILÁTERO FERRÍFERO – MGAssociação auro-uranífera relacionada a metaconglomerados piritosos (seixos de quartzo). Bem Mineral: ouro, urânio e pirita.
AMORINÓPOLIS – GO (Borda Bacia do Paraná)
Urânio associado a arenitos feldspáticos (sub-arcósios) - "Tipo Rollfront". Bem Mineral: urânio (primário e secundário).
RIO PRETO – GO Urânio relacionado a xistos grafitosos (veios). Bem Mineral: urânio.
RIO CRISTALINO – PA Quartzito feldspático e metarcósio são os principais hospedeiros da mineralização uranífera - "Depósito tipo inconformidade proterozóica". Bem Mineral: urânio.
ITATAIA – CE Urânio associado a rocha fosfática (Colofanito) - "Depósito tipo Fosfato". Bem Mineral: fosfato e urânio.
LAGOA REAL – BAMineralização monominerálica de urânio. Rocha hospedeira: Albitito metassomático ("tipo metassomatito granítico cálcio-sódico"). Bem Mineral: urânio
ESPINHARAS – PB Urânio associado a gnaisses albitizados/albititos (rochas metassomatizadas). Bem Mineral: urânio.
URANIUM IN BRAZILURANIUM IN BRAZIL
MA
PB
RR AP
AM
AC
PA
RO
MT
MS
TO
GOMG
BA
SP
PR
SC
RS
ES
RJ
DF
SE
RN
PEAL
PI
CE
AREAS SELECTION AND FOLLOW-UP PROGRAMAREAS SELECTION AND FOLLOW-UP PROGRAM
ITAPECURURec. geológico
BACIA DO PIAUÍ/MARANHÃOSíntese de dados
BORDA SUL BAC. PARNAÍBAAerogeofísica (análise interpretativa)
QUIXADÁRec. geológico
BAIXO SÃO FRANCISCOAerogeofísica (análise interpretativa)
BACIAS MESOZÓICASSíntese de dados
SERIDÓSíntese de dados
SERRA DE ITIUBAAerogeofísica (análise interpretativa)
estimativa de recursos sondagem de cubagem/perfilagem galeria
estimativa de recursos sondagem de cubagem/perfilagem geoquímica
SERRA DAS GAIVOTASgaleria
PLANALTO DE POÇOS DE CALDASgeoquímicaAGOSTINHO
FIGUEIRAestimativa de recursos galeria mapeamento geológico
AMORINÓPOLISestimativa de recursos
estimativa de recursos sondagem de cubagem/perfilagem pré-investimentosgaleriateledetecção (aerofotogrametria)
PB
RR AP
AM
AC
PA
RO
MT
MS
MA
TO
GOMG
BA
SP
PR
SC
RS
ES
RJ
DF
SE
RN
PEAL
PICE
LAGOA REAL
END OF THE 70 – 80’SEND OF THE 70 – 80’SURANIUM EXPLORATION PROGRAMURANIUM EXPLORATION PROGRAM
URANIUM IN BRAZILURANIUM IN BRAZIL
PB
RR AP
AM
AC
PA
RO
MT
MS
MA
TO
GOMG
BA
SP
PR
SC
RS
ES
RJ
DF
SE
RN
PEAL
PI
CE
LAGOA REAL2
POÇOS DE CALDAS1ESTIMATIVA DE RECURSOS
URANIUM ORE DEPOSITS DEVELOPMENT PROGRAM URANIUM ORE DEPOSITS DEVELOPMENT PROGRAM 1 – END OF THE 70’S - 2 – END OF THE 90’S1 – END OF THE 70’S - 2 – END OF THE 90’S
URANIUM IN BRAZILURANIUM IN BRAZIL
PB
RR AP
AM
AC
PA
RO
MT
MS
MA
TO
GOMG
BA
SP
PR
SC
RS
ES
RJ
DF
SE
RN
PEAL
PI
CE
Avaliação levantamentos geoquímicos regionaisSistema cálculo de reservas
Processamnto interpretação aerogeofísica
CATALÃO SUL (ESTUDOS)
LAGOA REAL(ESTUDOS)
SERIDÓ(ESTUDOS)
ITATAIA (STA.QUITÉRIA)(ESTUDOS)
RIO DE JANEIRO Sede da INB
POÇOS DE CALDAS (ESTUDOS)
SÃO MATEUS(ESTUDOS)
TRIUNFO(ESTUDOS)
AMORINÓPOLIS(ESTUDOS)
(ESTUDOS)RIO PRETO
DEVELOPMENT OF REGIONAL URANIUM EXPLORATION METHODS PROGRAM
DEVELOPMENT OF REGIONAL URANIUM EXPLORATION METHODS PROGRAM
POÇOS DE CALDAS - 500 500 4.000 4.500 LAGOA REAL 24.200 69.800 94.000 6.770 100.770 STA. QUITÉRIA 42.000 41.000 83.000 59.500 142.500 OTHERS b - - - 61.600 61.600 TOTAL 66.200 111.300 177.500 131.870 309.370 a Toneladas métricas de U3O8b Refere-se a Prospectos/Depósitos tais como: Rio Cristalino (PA); Amorinópolis e Rio Preto/Campo Belo (GO); Poços de Caldas e Gandarela (MG); Figueira (PR) e Espinharas (PB)
Província Uraníferade Lagoa Real(Unidade deConcentrado deUrânio - URA)
Tipo metassomatito granítico. A mineralização primária, constituida por uraninita epechblenda, tem um controle lito-estrutural. Ocorredisseminadamente nos albititos portadores de minerais sódicos,cálcicos e ferro-magnesianos, segundo corpos filonianoslenticulares, de dimensões variadas, costituindo 35 depósitosdistintos - sete definidos como Jazidas (totalizando uma reservageológica de 100.000 t de U3O8). A Mina Cachoeira (Depósito nº 13) encontra-se em processode lavra desde início de jan/2000. Até o momento foram lavradascerca de 1.050.000 t de minério, sendo a relação estéril-minériode 6:1. O teor médio de urânio é da ordem de 0,3%. Desta forma,produziu-se 2.040 t de diuranato de amônia - DUA.
Proterozóica820 m.y
ITATAIA(SANTA QUITÉRIA)
Tipo: Fosfato. Urânio associado a rocha fosfática (colofanito), contendo 11%de P2O5 e 0,1% de U3O8. Reserva geológica de 142.000 t deU3O8. No momento a INB desenvolve ações para aproveitamentomínero-industrial do urânio e do fosfato (produção de ácidofosfórico).
Proterozóica590 m.y
URANIUM IN BRAZILURANIUM IN BRAZIL
AERIAL VIEW OF THE OPEN PITCACHOEIRA MINE
(CAETITÉ-Bahia-BRASIL)
AERIAL VIEW OF THE OPEN PITCACHOEIRA MINE
(CAETITÉ-Bahia-BRASIL)
URANIUM IN BRAZILURANIUM IN BRAZIL
URANIUM ORE URANIUM ORE
URANIUM IN BRAZILURANIUM IN BRAZIL
AERIAL VIEW OF THE PLANT AERIAL VIEW OF THE PLANT
URANIUM IN BRAZILURANIUM IN BRAZIL
PROCESS FLOWCHARTPROCESS FLOWCHARTURANIUM IN BRAZILURANIUM IN BRAZIL
*SR= Refers to Uranium resources that are thought to exist in geologically favourabe yet unexplored areas.*SR= Refers to Uranium resources that are thought to exist in geologically favourabe yet unexplored areas.
URANIUM IN BRAZILURANIUM IN BRAZIL
POTENTIAL AREAS / DEPOSITSPOTENTIAL AREAS / DEPOSITSGEOECONOMICAL CONTEXTGEOECONOMICAL CONTEXT
AREA/DEPOSIT TYPE OF ORE/MINERALIZATION AGERIO CRISTALINO
(Cráton Amazônico / Escudo Brasileiro)
Mineralização uranífera "do tipo inconformidade", associada a quartzito e/ou metarcósios da Formação Rio Fresco e a metarenitos da Formação Gorotire.
Proterozóica
PITINGA (Escudo das Guianas)
Granito Água Boa (greizenizado) e Granito Madeira (albititizado), uraníferos (contendo terras raras), geneticamente relacionados aos depósitos estaníferos.
Proterozóico
CARAJÁS (Cráton Amazônico / Escudo
Brasileiro)Depósitos (Salobo, Igarapé Bahia e Alemão) relacionados a granitos portadores de associação de cobre-ouro, rica em urânio, terras raras e flúor.
Proterozóico
BACIA DO PARANÁ (Sul / Sudeste)
Arenito, por vezes associados à sequência de siltitos e carvão
Mineralização uranífera primária (uraninita / pechblenda) em contexto granitogênico. Proterozóico
URANIUM IN BRAZILURANIUM IN BRAZIL
CONCLUSIONSCONCLUSIONS
The evolution of Brazilian and world energy deficit makes essential to continue the evaluation of the country uranium potential. The definition of known resources and the discovery of new ones, besides to be an essential element in the range of energy solutions could be an important factor in policy at international level.
The evolution of Brazilian and world energy deficit makes essential to continue the evaluation of the country uranium potential. The definition of known resources and the discovery of new ones, besides to be an essential element in the range of energy solutions could be an important factor in policy at international level.
It should be emphasized that the great uranium geological potential of Brazil predicts the existence of new sources. Therefore, one should make investments to ensure increase in recoverable resources. Thus, since it has a relevant law, the country could become an exporter of nuclear fuel.
It should be emphasized that the great uranium geological potential of Brazil predicts the existence of new sources. Therefore, one should make investments to ensure increase in recoverable resources. Thus, since it has a relevant law, the country could become an exporter of nuclear fuel.
The fomentation, to be adopted and implemented with criteria, should occur gradually, and with dynamic operating every five years: it must be understood that the planning function is vital to the implementation of programs for mineral research. It should be remembered that the maturation period of a prospect field is about ten years.
The fomentation, to be adopted and implemented with criteria, should occur gradually, and with dynamic operating every five years: it must be understood that the planning function is vital to the implementation of programs for mineral research. It should be remembered that the maturation period of a prospect field is about ten years.
URANIUM IN BRAZILURANIUM IN BRAZIL
As a result you should take appropriate technical and organizational models, to best ally itself with the proper utilization of mineral resources to profit and quality.As a result you should take appropriate technical and organizational models, to best ally itself with the proper utilization of mineral resources to profit and quality.
Moreover, it is important to make time to time, reanalysis to compare results with expectations and review goals, policies and instruments as new demands arise (total quality guarantee, for example).Moreover, it is important to make time to time, reanalysis to compare results with expectations and review goals, policies and instruments as new demands arise (total quality guarantee, for example).
These must therefore be the attitude and action of a company that has a large portfolio and an extremely responsibility.These must therefore be the attitude and action of a company that has a large portfolio and an extremely responsibility.
The internal or external demand for products and services with more and more stricter exigences, has resulted in exploration and mining (start of production chain) greater demands on the specifications of chemical, physical and metallurgic characteristics. Low variability leads to great competitive advantage. This has caused a revolution in the exploration and mining planning, with the focus going from geology to the final product.
The internal or external demand for products and services with more and more stricter exigences, has resulted in exploration and mining (start of production chain) greater demands on the specifications of chemical, physical and metallurgic characteristics. Low variability leads to great competitive advantage. This has caused a revolution in the exploration and mining planning, with the focus going from geology to the final product.