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07 algeria sandstone aiea
The document summarizes results from a uranium prospection study in the Tin Seririne sedimentary basin in southeast Algeria. Three uranium-bearing horizons were identified: the Precambrian basement-Paleozoic cover interface, the base of the lower Devonian, and the base of the lower Visean. Uranium mineralization shows a relationship with coarse sandstone formations corresponding to lowstand sequences. The Anou Izeleg formation of the lower Devonian represents a priority exploration target due to its fluvio-deltaic sedimentation and secondary uranium minerals. The study contributes to characterizing a regional uranium metallogenic province spanning the Tin Seririne and Tim Mersoi
Impact of Structural Lineaments on Mineralized Occurrences in North Abu Rushe...
This document discusses structural lineaments in the North Abu Rusheid-Sikait area of Egypt and their impact on mineral occurrences. It finds that lineaments are arranged in two main clusters trending N-S and NW-SE/WNW-ESE, controlling emplacement of granitic intrusions. A mylonitic shear zone trending ENE-WSW separates granites from ophiolitic mélange and hosts evidence of hydrothermal activity and secondary uranium mineralization. Most mineralization is related to extensional events creating space for mineral entrapment along shear zones like the ENE-WSW zone containing fluorite, molybdenite, and others.
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07 algeria sandstone aiea
The document summarizes results from a uranium prospection study in the Tin Seririne sedimentary basin in southeast Algeria. Three uranium-bearing horizons were identified: the Precambrian basement-Paleozoic cover interface, the base of the lower Devonian, and the base of the lower Visean. Uranium mineralization shows a relationship with coarse sandstone formations corresponding to lowstand sequences. The Anou Izeleg formation of the lower Devonian represents a priority exploration target due to its fluvio-deltaic sedimentation and secondary uranium minerals. The study contributes to characterizing a regional uranium metallogenic province spanning the Tin Seririne and Tim Mersoi
Impact of Structural Lineaments on Mineralized Occurrences in North Abu Rushe...
This document discusses structural lineaments in the North Abu Rusheid-Sikait area of Egypt and their impact on mineral occurrences. It finds that lineaments are arranged in two main clusters trending N-S and NW-SE/WNW-ESE, controlling emplacement of granitic intrusions. A mylonitic shear zone trending ENE-WSW separates granites from ophiolitic mélange and hosts evidence of hydrothermal activity and secondary uranium mineralization. Most mineralization is related to extensional events creating space for mineral entrapment along shear zones like the ENE-WSW zone containing fluorite, molybdenite, and others.
03 iaea conference becker
This document summarizes a presentation on factors that define the economics of sandstone uranium mines, with a focus on grade. It states that grade and tonnage are the main economic factors, and minimum requirements are an average grade of 500ppm U3O8 and reserves over 300Mt. Capital costs are roughly $100-150 per pound of annual U3O8 production. Several examples of mines are discussed where actual costs exceeded initial estimates. The presentation recommends improving grade or tonnage before advancing projects beyond exploration.
Tm on origin of sandston uranium deposits
Sandstone uranium deposits were discussed at a meeting on their origin, with half of identified deposits being of this type. Maps of Kazakh sandstone uranium deposits were presented. The JV Inkai deposit in Kazakhstan was mentioned, and its uranium resource numbers from a 2010 CAMECO report were referenced.
Summary.conclusion.u.sandstone.tm
This document summarizes the proceedings of a conference on sandstone uranium deposits. It notes that 105 participants from various countries attended and 45 papers were presented over 3.5 days covering major uranium districts around the world. Key points from the discussions include the control of uranium deposition in specific climatic conditions and basins, the role of migrated organic matter in uranium reduction, advances in exploration methods using geophysics and isotopes, and an overview of major uranium provinces and resources. The proposed organization of a technical document on sandstone uranium deposits is also included, structured to provide an overview of the systems and deposits, case studies on key regions, and summaries of exploration advances, production, and resources.
Session 8 02 a.d. sklodowska
This document discusses using refractory sandstone ores and waste as alternative sources of uranium in Poland. It describes how uranium exploration was historically conducted in southwest Poland and how biotechnology can be used to extract uranium and other rare elements from waste. The document outlines studies that showed organic compounds in shale are the main carriers of uranium in certain deposits. It also details how microbial consortia were isolated that are able to leach uranium from ores and wastes under neutral and acidic conditions, extracting up to 95% of the uranium content. The document concludes by discussing different "green" nanosynthesis methods using fungi, bacteria and plants to produce metal nanoparticles.
Tmus programme
This document provides the program for an IAEA technical meeting on sandstone uranium deposits from a global perspective, being held from May 29-June 1, 2012 in Vienna. The meeting will include 8 sessions over 4 days covering the geology and exploration of major sandstone-hosted uranium deposit regions around the world, including Central Asia, Australia, Europe, North America, South America, Southeast Asia, Africa, and case studies of in-situ leach production. Presentations will address the mineralization controls, regional geology, exploration techniques, processing, markets and environmental issues related to these important uranium deposit types. The meeting aims to advance scientific understanding of sandstone uranium deposits worldwide.
04 poland sandstone deposits - iaea 2012
This document summarizes a study of uranium mineralization in Lower Triassic sandstones in North Poland. Geochemical analysis found strong correlations between uranium and other trace elements like vanadium, lead, and mercury. Mineralogical analysis using SEM-EDS found that uranium mineralization occurs mainly in an amorphous form filling pores and cracks between grains. Key uranium-bearing minerals identified include nasturan, coffinite, and associations with titanium and silica minerals. Uranium was also observed replacing pyrite along veinlets. The mineralization has a mainly amorphous character and fills spaces in feldspar, mica, dolomite, and replaces clay minerals.
05 iaea sandstone-hari
This document provides information about sandstone uranium deposits. It discusses the International Atomic Energy Agency's (IAEA) past work analyzing and classifying sandstone uranium deposits. The IAEA has published several reports and technical documents on sandstone uranium deposits dating back to the 1980s. It also maintains a database of over 1,400 uranium deposits worldwide, including many sandstone deposits. The IAEA conducts research and provides technical cooperation to member states to help characterize uranium deposit types and support sustainable uranium resource development.
04 tm origin of sandstone tanzania session-8
(1) The document discusses uranium mineralization found in sandstone deposits in Selous Game Reserve in Tanzania and the environmental issues surrounding potential uranium mining in the area.
(2) Baseline studies were conducted to measure background radiation levels in soils, sediments, water, food crops, and vegetation to establish preliminary radiation levels before any mining occurs.
(3) The studies found slightly elevated uranium and thorium levels in some samples near the Mkuju River but generally radiation levels were comparable to control samples. These baseline measurements will be used to evaluate potential environmental impacts if the mine becomes operational.
03 aiea presentation fakhi
This document summarizes research on uranium in Moroccan sedimentary rocks. It presents work on:
1) Optimizing analysis methods for uranium, thorium, radium and their descendants in samples.
2) Characterizing phases that concentrate radioisotopes.
3) Applying methods to study sedimentary deposits and separate particle sizes.
4) Studying distribution of natural radionuclides in solid phases like phosphates.
5) Extracting uranium and heavy metals from phosphates, oil shales, clays and more.
02 iaea2012 sklodowska
This document discusses using refractory sandstone ores and waste as alternative sources of uranium in Poland. It describes how uranium exploration was previously conducted in the region. Biotechnology offers possibilities to extract uranium as a byproduct from other rare element recovery processes. Studies show that organic compounds in shale and sandstone conglomerates are the main carriers of uranium in the region's deposits. The document also examines concentrations of various elements in the deposits and losses during processing. Microbial consortia have been isolated that are able to leach uranium from ores and wastes under neutral and acidic conditions, extracting up to 95% of uranium. "Green" biosynthesis using microbes is presented as an environmentally friendly method of extracting
01 a. hanly
This document summarizes a study of radiation damage features in quartz grains from the Three Crow uranium deposit in Nebraska. Cathodoluminescence microscopy revealed orange halos and rims in quartz that indicate radiation damage from uranium decay. The features were most abundant in mineralized areas with higher uranium content. Raman spectroscopy showed the halos experienced amorphization of the quartz crystal structure. Future work is planned to further characterize the radiation damage using transmission electron microscopy and fission track mapping.
06 iaea 2012 sandstone isr cameco heinr2
1) Mineralogical studies and leaching tests are important for evaluating in situ recovery (ISR) uranium projects to assess amenability of sandstone ores to the process.
2) Uranium mineral compositions can vary within deposits and do not always have well-defined elemental makeups. Other mineral compositions also impact leaching.
3) Characterization of multiple drill cores is necessary since mineralogical and leaching characteristics can differ within and between deposits.
4) Leaching tests on examples showed recoveries met targets of over 80% and optimizations improved recoveries up to 10% per ore, not dependent on grade. Elements of concern showed variable leachability based on host minerals.
05 l. lopez
This document summarizes a technical meeting on sandstone-hosted uranium deposits in Argentina. It discusses the country's history of uranium mining from the 1950s until production ceased in 1997 due to economic reasons. Currently, several uranium projects are underway to meet domestic demand from nuclear power plants. The document describes the three main types of sandstone-hosted deposits in Argentina: basal channel deposits like Cerro Solo; roll front deposits such as Los Colorados; and tabular deposits including Sierra Pintada. It outlines uranium exploration and development supported by IAEA technical cooperation projects.
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03 iaea conference becker
This document summarizes a presentation on factors that define the economics of sandstone uranium mines, with a focus on grade. It states that grade and tonnage are the main economic factors, and minimum requirements are an average grade of 500ppm U3O8 and reserves over 300Mt. Capital costs are roughly $100-150 per pound of annual U3O8 production. Several examples of mines are discussed where actual costs exceeded initial estimates. The presentation recommends improving grade or tonnage before advancing projects beyond exploration.
Tm on origin of sandston uranium deposits
Sandstone uranium deposits were discussed at a meeting on their origin, with half of identified deposits being of this type. Maps of Kazakh sandstone uranium deposits were presented. The JV Inkai deposit in Kazakhstan was mentioned, and its uranium resource numbers from a 2010 CAMECO report were referenced.
Summary.conclusion.u.sandstone.tm
This document summarizes the proceedings of a conference on sandstone uranium deposits. It notes that 105 participants from various countries attended and 45 papers were presented over 3.5 days covering major uranium districts around the world. Key points from the discussions include the control of uranium deposition in specific climatic conditions and basins, the role of migrated organic matter in uranium reduction, advances in exploration methods using geophysics and isotopes, and an overview of major uranium provinces and resources. The proposed organization of a technical document on sandstone uranium deposits is also included, structured to provide an overview of the systems and deposits, case studies on key regions, and summaries of exploration advances, production, and resources.
Session 8 02 a.d. sklodowska
This document discusses using refractory sandstone ores and waste as alternative sources of uranium in Poland. It describes how uranium exploration was historically conducted in southwest Poland and how biotechnology can be used to extract uranium and other rare elements from waste. The document outlines studies that showed organic compounds in shale are the main carriers of uranium in certain deposits. It also details how microbial consortia were isolated that are able to leach uranium from ores and wastes under neutral and acidic conditions, extracting up to 95% of the uranium content. The document concludes by discussing different "green" nanosynthesis methods using fungi, bacteria and plants to produce metal nanoparticles.
Tmus programme
This document provides the program for an IAEA technical meeting on sandstone uranium deposits from a global perspective, being held from May 29-June 1, 2012 in Vienna. The meeting will include 8 sessions over 4 days covering the geology and exploration of major sandstone-hosted uranium deposit regions around the world, including Central Asia, Australia, Europe, North America, South America, Southeast Asia, Africa, and case studies of in-situ leach production. Presentations will address the mineralization controls, regional geology, exploration techniques, processing, markets and environmental issues related to these important uranium deposit types. The meeting aims to advance scientific understanding of sandstone uranium deposits worldwide.
04 poland sandstone deposits - iaea 2012
This document summarizes a study of uranium mineralization in Lower Triassic sandstones in North Poland. Geochemical analysis found strong correlations between uranium and other trace elements like vanadium, lead, and mercury. Mineralogical analysis using SEM-EDS found that uranium mineralization occurs mainly in an amorphous form filling pores and cracks between grains. Key uranium-bearing minerals identified include nasturan, coffinite, and associations with titanium and silica minerals. Uranium was also observed replacing pyrite along veinlets. The mineralization has a mainly amorphous character and fills spaces in feldspar, mica, dolomite, and replaces clay minerals.
05 iaea sandstone-hari
This document provides information about sandstone uranium deposits. It discusses the International Atomic Energy Agency's (IAEA) past work analyzing and classifying sandstone uranium deposits. The IAEA has published several reports and technical documents on sandstone uranium deposits dating back to the 1980s. It also maintains a database of over 1,400 uranium deposits worldwide, including many sandstone deposits. The IAEA conducts research and provides technical cooperation to member states to help characterize uranium deposit types and support sustainable uranium resource development.
04 tm origin of sandstone tanzania session-8
(1) The document discusses uranium mineralization found in sandstone deposits in Selous Game Reserve in Tanzania and the environmental issues surrounding potential uranium mining in the area.
(2) Baseline studies were conducted to measure background radiation levels in soils, sediments, water, food crops, and vegetation to establish preliminary radiation levels before any mining occurs.
(3) The studies found slightly elevated uranium and thorium levels in some samples near the Mkuju River but generally radiation levels were comparable to control samples. These baseline measurements will be used to evaluate potential environmental impacts if the mine becomes operational.
03 aiea presentation fakhi
This document summarizes research on uranium in Moroccan sedimentary rocks. It presents work on:
1) Optimizing analysis methods for uranium, thorium, radium and their descendants in samples.
2) Characterizing phases that concentrate radioisotopes.
3) Applying methods to study sedimentary deposits and separate particle sizes.
4) Studying distribution of natural radionuclides in solid phases like phosphates.
5) Extracting uranium and heavy metals from phosphates, oil shales, clays and more.
02 iaea2012 sklodowska
This document discusses using refractory sandstone ores and waste as alternative sources of uranium in Poland. It describes how uranium exploration was previously conducted in the region. Biotechnology offers possibilities to extract uranium as a byproduct from other rare element recovery processes. Studies show that organic compounds in shale and sandstone conglomerates are the main carriers of uranium in the region's deposits. The document also examines concentrations of various elements in the deposits and losses during processing. Microbial consortia have been isolated that are able to leach uranium from ores and wastes under neutral and acidic conditions, extracting up to 95% of uranium. "Green" biosynthesis using microbes is presented as an environmentally friendly method of extracting
01 a. hanly
This document summarizes a study of radiation damage features in quartz grains from the Three Crow uranium deposit in Nebraska. Cathodoluminescence microscopy revealed orange halos and rims in quartz that indicate radiation damage from uranium decay. The features were most abundant in mineralized areas with higher uranium content. Raman spectroscopy showed the halos experienced amorphization of the quartz crystal structure. Future work is planned to further characterize the radiation damage using transmission electron microscopy and fission track mapping.
06 iaea 2012 sandstone isr cameco heinr2
1) Mineralogical studies and leaching tests are important for evaluating in situ recovery (ISR) uranium projects to assess amenability of sandstone ores to the process.
2) Uranium mineral compositions can vary within deposits and do not always have well-defined elemental makeups. Other mineral compositions also impact leaching.
3) Characterization of multiple drill cores is necessary since mineralogical and leaching characteristics can differ within and between deposits.
4) Leaching tests on examples showed recoveries met targets of over 80% and optimizations improved recoveries up to 10% per ore, not dependent on grade. Elements of concern showed variable leachability based on host minerals.
05 l. lopez
This document summarizes a technical meeting on sandstone-hosted uranium deposits in Argentina. It discusses the country's history of uranium mining from the 1950s until production ceased in 1997 due to economic reasons. Currently, several uranium projects are underway to meet domestic demand from nuclear power plants. The document describes the three main types of sandstone-hosted deposits in Argentina: basal channel deposits like Cerro Solo; roll front deposits such as Los Colorados; and tabular deposits including Sierra Pintada. It outlines uranium exploration and development supported by IAEA technical cooperation projects.
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