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A Geochemical and Isotopic Investigation of Carbonatites …

Hence, it is difficult to interpret the combined geochemical characteristics of the HSA carbonatites, as well as those from HYC and Bayan Obo . For example, experimental results indicate that carbonatites formed by immiscibility are typically poor in alkali and abundant in silicate . However, the HSA carbonatites contain much higher silicate ...

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Audio magnetotelluric view of the giant carbonatite-hosted Bayan Obo …

The Bayan Obo (BO) ore deposit in Inner Mongolia in China is the world's largest known REE resource, the second-largest niobium (Nb) resource, and a major iron (Fe) deposit (Ling et al., 2013, Fan et al., 2016, Yang et al., 2017, Liu et al., 2020).

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Bayan Obo mining district, Baotou City (Baotou Prefecture…

Bayan Obo mining district, Baotou City (Baotou Prefecture), Inner Mongolia, China : A county-level district of Baotou league.

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Distribution and mineralogical features of thorite in the Bayan Obo …

The Bayan Obo deposit is located on the northern margin of the North China craton and bordered by the Central Asian Orogenic belt in the north (Fig. 1 a).The main fault in the region is the Wulanbaolige deep fault, which is intersected by NE-trending secondary faults (Fig. 1 b).The Baiyinjiaokela-Kuangou fault, situated about 3 km on the north of …

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LEAD-LEAD DATING REVEALS PERMIAN REMOBILIZATION …

The Bayan Obo deposit hosted by the H8 unit is a world-class rare earth element (REE) deposit with considerable niobium (Nb) and iron (Fe). Permian granites are widely exposed in the mining area and have a close spatial association with the Nb mineralization. Whether the granites contributed Nb or only remobilized existing …

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A preliminary investigation of autometasomatic phenomena …

Geotectonically, the Bayan Obo deposit is located on the northern margin of the North China platform. When the Proterozoic Bayan Obo Group was formed, the area was probably a rift tectonic ...

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Multistage ore formation in the world's largest REE-Nb-Fe …

The Bayan Obo deposit is located on the northern margin of the North China Craton (NCC), adjacent to the Central Asian Orogenic Belt in the north, and near the convergence of the Siberian Plate and the North China Plate (Fig. 1 a).The deposit is regarded to be closely related to a huge continental rift zone system formed during the …

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(PDF) Geological features and genesis of the …

Geotectonically, the Bayan Obo deposit is located on the northern margin of the North China platform. When the Proterozoic …

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Bayan Obo F ' Solar Power Plant (World Map) | database.earth

Bayan Obo F has a peak capacity of 10.0 MW which is generated by Solar. Generated Gigawatt Hours (2013-2019) The data for generated gigawatt hours between 2013-2019 is incomplete. Estimated Generated Gigawatt Hours (2013-2019) Esitmated numbers might be available if no offical reccords has been released, or if they were added to the database ...

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Late Paleozoic–Early Mesozoic southward subduction

The Bainaimiao arc belt has a tectonic affinity different from the North China Craton (NCC) and represents a composite arc system consisting of an ensialic island arc with a basement composition similar to that of the Precambrian microcontinents in the CAOB in the Bayan Obo-Damaoqi-Bainaimiao-Zhengxiangbaiqi and central Jilin areas …

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Metasomatic silicate chemistry at the Bayan Obo Fe–REE–Nb …

The Bayan Obo Fe–REE–Nb deposit is located in Inner Mongolia, China (109° 59′ E; 41° 48′ N), and has estimated total reserves of 600 Mt of iron oxides (Yuan et al., 1992) and in excess of 100 Mt REE–oxide (Ren, 1985).The deposit is contained within the sediments of the Proterozoic Bayan Obo Group (Fig. 1), which consists …

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REE-Nb (Fe, U, Th)-bearing alkaline skarns of China

Geotectonically, the Bayan Obo deposit is located on the northern margin of the North China platform. When the Proterozoic Bayan Obo Group was formed, the area was probably a rift tectonic ...

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Carbonatitic footprints in the Bayan Obo REEs deposit as …

The Bayan Obo REEs deposit is located in the northern margin of the North China Craton and adjacent to the Central Asian Orogenic Belt in the north (Fig. 1).The primary fault in the area is Wulanbaolige deep fault, also known as the Bayan Obo-Chifeng fault, located about 10 km to the north of the Bayan Obo mining area.

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Determining the location of the Bayan Obo rare earth …

ABSTRACT Bayan Obo is the largest rare earth element (REE) deposit in the world. The occurrence of REE is closely related to the dolomite in this area. Dolomite serves as the …

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The dystopian lake filled by the world's tech lust

Hidden in an unknown corner of China is a toxic, nightmarish lake created by our thirst for smartphones, gadgets and green tech, discovers Tim Maughan.

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A quantitative discussion on element mass migration in

Geotectonically, the Bayan Obo deposit is located on the northern margin of the North China platform. When the Proterozoic Bayan Obo Group was formed, the area was probably a rift tectonic ...

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Trachytic Rock and Associated Fenitization in the Bayan Obo …

Geotectonically, the Bayan Obo deposit is located on the northern margin of the North China platform. When the Proterozoic Bayan Obo Group was formed, the area was probably a rift tectonic ...

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Mineral Deposit Research: Meeting the Global Challenge

Geotectonically, the Bayan Obo deposit is located on the northern margin of the North China platform. When the Proterozoic Bayan Obo Group was formed, the area was probably a rift tectonic ...

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Detrital zircon U-Pb and Hf isotopic and whole-rock

In this study, we focus on the Bayan Obo Group in the northernmost margin of the NCC, which belongs to the Zha'ertai-Bayan Obo-Huade rift zone (Lu et al., 2002, Zhao et al., 2003, Zhai et al., 2015). Our new detrital zircon U-Pb ages and Lu-Hf isotopic and whole-rock geochemical results show that the group can be subdivided into three ...

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Age and Geochemistry of the Bayan Obo Ore …

The Bayan Obo Nb-REE-Fe ore deposit, the largest REE ore deposit in the world, is located at 109°57′east longitude and 41°46′north latitude and in the Baotou city of the Autonomois Region of Inner Mongolia, China. …

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The giant Bayan Obo REE-Nb-Fe deposit, China: …

The Bayan Obo deposit is located approximately 90 km south of the China and Mongolia border, at 109°58′E and 41°48′N, and just situated at the northern margin of the North China Craton (NCC), bordering the Central Asian Orogenic Belt to the north (Xiao et al., 2003, Xiao and Kusky, 2009) (Fig. 1).Gentle fold structures, composed mostly of …

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Zircon Hf isotopic compositions of the basement gneiss in Bayan Obo …

Bayan Obo, located in the north margin of the Yinshan Block, North China Craton (NCC), contains the Archean to Paleoproterozoic basement rocks which may shed light on the early crustal evolution of the NCC. In this paper, to reveal the formation and modification of the basements, we report Hf isotope of zircons from the biotite …

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Identification of ~1.3 Ga hydrothermal zircon from the giant Bayan Obo …

The Bayan Obo deposit is world-famous for its giant rare earth reserves, and also accompanied with 2.2 Mt Nb 2 O 5 resources at an average grade of 0.13 %, renowned as the second largest Nb deposit globally. Previous studies have focused on the origin of carbonatite (igneous/sedimentary), and variation composition during evolution, …

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The occurrence and genesis of HREE-rich minerals from the giant Bayan

The Bayan Obo deposit is tectonically located in the northern margin of the North China Craton and adjacent to the Central Asian Orogenic Belt to the north (Fig. 1 a).In the Bayan Obo area, a few Archean-Paleoproterozoic (∼2.5 to ∼ 1.9 Ga) metamorphic rocks (e.g., granitic gneiss, metamorphosed syenite, biotite gneiss, and garnet gneiss) …

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The occurrences and geochemical characteristics of thorium …

Geotectonically, the Bayan Obo deposit is located on the northern margin of the North China platform. When the Proterozoic Bayan Obo Group was formed, the area was probably a rift tectonic ...

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Boron isotopic investigation of the Bayan Obo carbonatite …

The Bayan Obo ore deposit is located on the northern border of the North China Craton (NCC) in Inner Mongolia, Northern China and lies south of the Central Asian Orogenic Belt (Fig. 1). Basement rocks at Bayan Obo consist of Archean mylonitic granite-gneiss, and Paleoproterozoic syenite, granodiorite and granite-gneiss (Fan et al., 2016).

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Social and Environmental Impact of the Rare Earth …

facility in Malaysia, is clearly of a lower impact than Bayan Obo, Mountain Pass and indeed adsorbed . clay deposits, given the small footprint of the mine itself and the remoteness of the location.

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Phase Equilibria of SiO2-Ce2O3-CaO-25wt.% Al2O3 System …

Geotectonically, the Bayan Obo deposit is located on the northern margin of the North China platform. When the Proterozoic Bayan Obo Group was formed, the area was probably a rift tectonic ...

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New discovery of the Early Paleozoic carbonatite in Bayan Obo …

The Bayan Obo REE-Nb-Fe deposit is located on the northern margin of the North China Craton (NCC). The basement rocks in the area consist of the Neoarchean (∼2.5 Ga) mylonitic granite-gneiss, and the Paleoproterozoic (∼2.0 to ∼1.9 Ga) syenite, granodiorite and granite-gneiss (Wang et al., 2002).The deposit is hosted in a suit of low …

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Decomposition Model of Bastnaesite and Its Fluorine …

The raw material employed in this study was a Bayan Obo mixed rare earth concentrate, which was primarily composed of bastnaesite and a small amount of monazite (with rare earth grade of 65%; Ce accounted for over 50% of the rare earth allocation). The mixed rare earth concentrate was employed after sieving and drying (80 °C, 2 h).

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