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On March 23, 1821, a geologist named Pierre Berthier discovered a reddish, clay-like material. He found that the substance, later named bauxite after the …
It is regarded as a potential non-conventional REE source due to the increasing demand for REEs. This study provides new mineralogical and geochemical …
However, the controls on the episodic production of bauxite in the intracontinental setting were barely discussed. This study presents new mineralogical and geochronological data for bauxite ore, ferric clay, and aluminous clay and detrital zircons associated with bauxite deposits of the central South China Block.
Bauxite ore is the world's main source of aluminum. Bauxite is a rock formed from a reddish clay material called laterite soil and is most commonly found in tropical or subtropical regions. Bauxite is primarily comprised of aluminum oxide compounds (alumina), silica, iron oxides and titanium dioxide. Approximately 70 percent of the …
compared with the other two bauxite provinces, the bauxite deposits in Central Asian Province ha ve evident enrichment of TiO 2 content. This increment of TiO 2 content may reflect the addition of ...
Karst bauxite is a major source of aluminum and contains high concentrations of trace elements such as Li, Ga, Sc, and rare earth elements (REEs). It is regarded as a potential non-conventional REE source due to the increasing demand for REEs. This study provides new mineralogical and geochemical evidence of a Lindai …
Two bauxite horizons, with a total reserve of 1.29 Bt, occur in the Lower Carboniferous and Lower Permian in the central South China Block. Different from other intracontinental bauxites in China ...
The discovery of Lindai plant assemblage not only provides a new fossil evidence to constraint the age of bauxite deposits in Lower Carboniferous Jiujialu Formation of Central Guizhou Province ...
Li resources in karst bauxite have attracted much attention in recent years due to the discovery of Li super-enrichment in certain karstic bauxite deposits, such as the Permian Li-rich karstic bauxites in central Yunnan province, western margin of the South China Block [18–20]. To our knowledge, the Li content in the bauxite ores of Greece ...
The available geological, mineralogical, and geochemical data highlight the particular significance of coal layers and carbonaceous layers overlying bauxite bodies …
Bauxite mining is generally carried out by large-scale open pit methods and requires beneficiation of the mined material. Operations typically produce 1–15 Mt of bauxite a year over a mine life of 20–40 years (Bardossy and Aleva, 1990).This paper summarises procedures used for bauxite resource estimation and describes the main …
Bauxite is an important ore of aluminum, composed mainly of aluminum oxide and hydroxide minerals. It was named after the village Les Baux-de-Provence in southern France, where it was first discovered in 1821 by geologist Henri Rouvère. Bauxites have a range of commercial applications, such as for the production of aluminum metal and …
The bauxite deposits in China are mainly found in the Guizhou, Guangxi, Shanxi, and Henan Provinces. Guizhou's reserves consisted of 155.23 million tons, by the end of 2008 (USGS, 2009;Gu et al ...
@article{Ling2018GeologyAG, title={Geology and geochemistry of the Xiaoshanba bauxite deposit, Central Guizhou Province, SW China: Implications for the behavior of trace and rare earth elements}, author={Kunyue Ling and Xiaoqing Zhu and Haoshu Tang and Shengjiang Du and Jing Gu}, journal={Journal of Geochemical …
In recent years, with the discovery of oil and gas in the Carboniferous bauxite reservoir in the Ordos basin, the formation and distribution of bauxite and bauxite reservoirs have attracted the attention of oil and gas explorers. Based on the slightly equidistant core testing of minerals and the porosity on the formation and calibration on …
A maximum U-Pb age peak of ca. 800 Ma detrital zircons came from HFC and 1100 Ma from the BYT and YFB. The HFC and BYT and YFB bauxites sourced …
The Lower Carboniferous Jiujialu Formation bauxite deposits of northern Guizhou Province, China, are a Kazakhstan subtype of karst bauxite deposits. The provenance of the Jiujialu Formation has long been debated, with uncertainty about the formation of the bauxite deposits. Here we report new geochemical data that indicate …
Many bauxite deposits worldwide occur associated with coal or black carbonaceous rocks and ferroan strata, forming a "coal–bauxite–iron" structure (Kalaitzidis et al., 2010, Ling et al., 2013, Zhang et al., 2013, and references therein).In which, the Al-bearing rock series are consisted of three segments (i.e., iron argillite, bauxite, and coal …
Large-scale, export-oriented industrialization would make the Indonesian economy more stable because while raw (or barely processed) natural resources are …
Permian lithium-rich karstic bauxites are newly discovered in central Yunnan province, western margin of the South China Block, with a reserve of 16 million tonnes, which has a great potential for aluminum and lithium exploitation. Provenance and ore-forming processes are still debatable. Mineralogical, geochemical, and geochronological …
to collect guidelines for future research. The work resulted in the discovery of bauxite in Serra da Prata. Systematic investigation of the area awaits the corresponding research permits. 2. Geo-Environmental Context. Serra da Prata is situated in the Brazilian Amazon, in the Central portion of the State of Roraima.
Here, new mineralogical and geochemical evidence of the Lindai bauxite in Qingzhen region have been provided, aiming to identify parental affinity, discuss the provenance differences between the ...
The presence of thin (up to 50 cm) pyrite-bearing coal seams and carbonaceous facies on top of the Parnassos–Ghiona bauxite deposit, at the …
2. New Day Aluminium (Jamaica) Limited, the managing partner of Noranda Jamaica Bauxite Partners II, has formally changed its name to Discovery Bauxite Operations Limited, completing a formal rebranding that started last year. The change will not affect the company's operations, and the name, Noranda Bauxite, will still be used …
Bauxite-related Li-rich claystone is a new potential Li clay resource and has been discovered in wide parts of China, including in the lower Carboniferous Jiujialu Formation in central Guizhou ...
It was the world fourth largest diamond ever discovered. Coming almost ten years after independence. Just like today, everyone was celebrating. Our road to economic development is unstoppable. By the 1990s, our country was tearing itself apart, by being engaged in a brutal civil war. In 2017 Pastor Emmanuel Momoh discovered a 709 carat …
new discovery of. residual lateritic bauxite deposit. parenggean-central kalimantan. by. hizian darwin. 2005
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bauxite, rock largely composed of a mixture of hydrous aluminum oxides. Bauxite is the principal ore of aluminum. Bauxites vary physically according to the origin and geologic history of their deposits: some deposits are soft, easily crushed, and structureless; some are hard, dense, and pisolitic, or pealike; still others are porous but …
Palaeo weathering during the Cretaceous–Eocene interval is most favorable for bauxitization, i.e., transport and deposition in traps on the karstified surfaces of the Mediterranean karst bauxite belt, including the Parnassos–Ghiona bauxite deposit. Resources of lithium (Li), a critical metal of strategic significance in karst-type bauxite …
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