Aguas Claras Iron Ore
Soil Nails Stabilize a Huge Open Pit Mine | DYWIDAG
The Mina de Águas Claras is an open pit mine in the Brazilian federal state of Minas Gerais in which iron ore was extracted from 1971 to 2002. DYWIDAG provided the material used in the stabilization of the slope where the mine is located. ... approximately 300 million tons of iron ore were extracted from Águas Claras over an area of roughly 1 ...
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Geochemical Constraints on the Origin of Banded Iron …
Banded iron formations (BIFs) are the most significant source of iron in the world. In this study, we report petrographic and geochemical data of the BIF from the Meyomessi area in the Ntem Complex, southern Cameroon, and discuss their genesis and the …
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Genesis of lateritic iron ore from banded iron-formation in …
Lateritic weathering of metamorphosed Proterozoic banded iron-formation (BIF), locally named itabirite in Brazil, produced large deposits of iron ore. At the Capanema iron-ore mine in the Quadrilatero Ferrifero in Minas Gerais state (southeast Brazil), the BIF is a bedded metasedimentary rock composed essentially of layers of hematite/kenomagnetite alternating …
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PorterGeo Database
The soft high-grade ores, together with the low-grade ores, called iron-rich itabirite, are the main types of ore, and represent approximately 51 and 29% of the reserves respectively. The remaining 20% comprises of high-grade hard ore. The iron oxide mineralogy is the same as that of the Aguas Claras Mine, but in different proportions.
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Comparison of altered mineral information extracted from …
Rock samples cannot fully represent extraction results on an image. Here, alteration information associated with the Aguas Claras, Brazil iron deposit was analysed using a Landsat Enhanced Thematic Mapper plus (ETM+), a Terra Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and Hyperion data, all with 30 m resolution.
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Chemical composition (wt%) of the in situ soft …
Download Table | Chemical composition (wt%) of the in situ soft high-grade ore of the Águas Claras, Capão Xavier, and Tamanduá mines from publication: Mineralogy and trace-element geochemistry ...
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Project Discussion: Aguas Claras, Belo Horizonte, Brazil
Owners of this iron-ore mine in Brazil saw mining as a temporary use of the land and began planning in the early 1990s to reuse the excavated pit once mineral resources are depleted. ... Aguas Claras is an ideal location for a village since the mine is on the rear slope of mountains that form the southern boundary of the burgeoning city of Belo ...
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Spectral plot comparing ETM+, ASTER, and Hyperion end
The exploration, monitoring and analysis of iron ore resources based on remote sensing have broad application value. Huang et al. [10] used multi-source satellite sensors such as Landsat, Aster ...
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Comparison of altered mineral information extracted from …
DOI: 10.1049/iet-ipr.2018.5026 Corpus ID: 67868576; Comparison of altered mineral information extracted from ETM+, ASTER and Hyperion data in Águas Claras iron ore, Brazil
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Mineralogy and trace-element geochemistry of the high …
The Águas Claras iron-ore mine is located in the Quadrilátero Ferrífero (QF), southeastern region of Brazil, within the state of Minas Gerais (Fig. 1). Open-pit mining at Águas Claras …
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Geochemistry and Petrology of Some Proterozoic Banded Iron-Formations
These banded iron-formation samples represent the best preserved, unweathered, and least altered iron-formation precursors to the major hematite-rich ore deposits of the region. Since the 17th century, the Quadrilátero Ferrífero has been recognized as a major gold- and iron-rich province, which has resulted in it being the best-studied ...
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Comparison of altered mineral information extracted …
(Fig. 1) and is recognised world-wide as an important iron-ore deposit. The Águas Claras Mine is located in the northern Serra do Curral and defines the north-west edge of the Brazilian …
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A ́ guas Claras Mine. A Cross section 2200E. B Geological …
A ́ guas Claras iron mine is located on the northern edge of the Serra do Curral, in a northeast-southwest trending homocline with bedding dipping steeply to the southeast ( Fig. 2A).
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The chemical composition of specular hematite from …
The other sample set was recently obtained from a piezometer drill hole at the Águas Claras iron-ore deposit (Fig. 3), which is located in the low-strain domain. The sample material from Águas Claras contains impregnations of fine-grained platelets of hematite, generally <20 μm across, in dolomitic itabirite lacking the foliation-defining ...
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Modeling the Liberation of Quartz in Low-Grade Iron Ores
Iron ore is regarded as the second most important commodity behind oil. As an essential input for the production of crude steel, iron ore feeds the world's largest trillion-dollar-a-year metal ...
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Geology and geochemistry of the Águas Claras and Pico Iron …
Mining at Águas Claras commenced in 1973 and by 2002 ca. 288 Mt of high-grade iron ore had been mined. The highest annual output was in 1992 when 14 Mt of iron ore were mined. The Águas Claras Mine was closed in 2002 with an annual production of 1.2 Mt. About 88 Mt of high-grade …
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A method for mapping and monitoring of iron ore …
and efficiently extract large-scale iron ore areas. The exploration, monitoring and analysis of iron ore resources based on remote sensing have broad application value. Huang et al. [10] used multi-source satellite sensors such as Landsat, Aster and Hyperion to monitor the alteration information related in the Brazilian Aguas Claras iron
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A 's eye view of the A ´ guas Claras Mine, looking west. B …
A ´ guas Claras iron mine is located on the northern edge of the Serra do Curral, in a northeast-southwest trending homocline with bedding dipping steeply to the southeast ( Fig. 2A).
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Using oxygen isotope chemistry to track hydrothermal …
The Quadrilátero Ferrífero, Brazil, is presently the largest accumulation of single itabirite-hosted iron ore bodies worldwide. Detailed petrography of selected hypogene high-grade iron ore bodies at, e.g. the Águas Claras, Conceição, Pau Branco and Pico deposits revealed different iron oxide generations, from oldest to youngest: magnetite → martite (hematite …
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Geological map of Águas Claras ore field in Brazil
The obtained results have good correlation with 92% confidence intervals in BR method for Ferric iron (2/1), ferric oxide (4/3) and ferrous iron (5/4 +1/2) of Aster and iron oxide (4/2) and ...
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Mineralogy and trace-element geochemistry of the high-grade iron …
DOI: 10.1007/S00126-007-0157-Z; Corpus ID: 129732720; Mineralogy and trace-element geochemistry of the high-grade iron ores of the Águas Claras Mine and comparison with the Capã
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Geological characteristics and metallogenesis of the shilu Fe-ore …
DOI: 10.1016/J.OREGEOREV.2013.01.015 Corpus ID: 129935748; Geological characteristics and metallogenesis of the shilu Fe-ore deposit in Hainan Province, South China @article{Xu2013GeologicalCA, title={Geological characteristics and metallogenesis of the shilu Fe-ore deposit in Hainan Province, South China}, author={Deru Xu and Zhilin Wang and …
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Advanced data processing of ground-based synthetic aperture radar …
The Águas Claras iron ore deposit is located in the Serra ... Analysis of slope stability using limit equilibrium and numerical methods with case examples from the Aguas Claras mine. P R Behrens ...
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Comparison of Altered Mineral Information Extracted from …
data in Águas Claras iron ore, Brazil. ISSN 1751-9659. Received on 14th February 2018. Revised 11th July 2018. Accepted on 4th September 2018. E-First on 19th …
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Hydrothermal origin of soft hematite ore in the Quadrilátero …
The Fe-rich phyllite and iron ore comprise a complex iron oxide mineralogy: (1) magnetite-martite is hosted in itabirite and related medium-grade iron ore and present as disseminated minerals in ...
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Comparison of altered mineral information extracted …
used for mapping altered minerals in Águas Claras iron ore. The altered information extracted from three kinds of remote sensing images can verify each other. They were all located within ore formations, as well as controlled by, the subject direction, north- east (NE) trending faults and matched well with known minerals. ...
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Advanced data processing of ground-based Synthetic
The Águas Claras iron ore deposit is located in the Serra do Curral, in the northwestern corner of the Iron Quadrangle. The iron ore deposit is composed of a sub- ...
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(PDF) Dewatering of Iron Ore Mines and Capability to Predict
The Águas Claras and Mutuca iron ore mines, reached the watertable in the 80's, starting the dewatering by using series of deep wells. In the 90's, some communities located near the …
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Insight into the Origin of Iron Ore Based on Elemental …
The Bipindi iron ore district is located in the central section of the Nyong Complex at the northwestern margin of the Congo Craton in Southwest Cameroon. This iron district contains numerous iron mineralization hosted by the Mewongo, Bibole, Kouambo, and Zambi banded iron formations (BIFs). These BIFs contain magnetite as the main iron ore mineral …
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Geochemistry and genesis of the iron ore of the águas claras …
SPIER, Carlos Alberto e OLIVEIRA, Sonia Maria Barros de e ROSIÉRE, Carlos Alberto. Geochemistry and genesis of the iron ore of the águas claras mine, quadrilátero ferrífero, Brazil. 2005, Anais.. [S.l.]: Instituto de Geociências, Universidade de São Paulo, 2005.
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