The Bayan Obo REE-Nb-Fe deposit is located at the northern margin of the North China Craton, adjacent to the Central Asian Orogenic Belt in the north (Fig. 1). The primary fault in the area is the Wulanbaolige deep fault, also known as the Bayan Obo-Chifeng fault, located about 10 km north of Bayan Obo town.Web
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The carbonatite-related Bayan Obo deposit, China is the largest REE resource in the world. This deposit has long been a major light REE (LREE) producer, with heavy REE (HREE) rarely exploited. In order to better understand the occurrence of HREE in the deposit, this paper conducts a study of HREE-rich minerals at Bayan Obo.Web
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The Bayan Obo ore deposit is hosted in the Lower Bayan Obo Group. The ore-hosting rock is dolomite marble (Fig. 2 b–d), traditionally considered a component of the Bayan Obo Group known as unit H8, but there is strong evidence indicating that the H8 dolomite is magmatic in origin and was overprinted by hydrothermal metasomatism (Le …Web
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The Bayan Obo REE-Nb-Fe deposit is a great example . Previous studies suggest that two major mineralization events occurred at 1400 Ma and 440 Ma, respectively, at the giant Bayan Obo REE-Nb-Fe deposit, which correspond to an early emplacement of large-scale carbonatitic magma (1.4-1.3 Ga) and a late intense hydrothermal activity (440 Ma).Web
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The Bayan Obo deposit, the only giant REE deposit worldwide (Smith et al., 2016) with high-grade reserves of 48 Mt at 6 wt% REE 2 O 3 (Drew et al., 1990). The Bayan Obo deposit is hosted in a sequence of nine Paleo–Mesoproterozoic sedimentary units, H1–H9, of the Bayan Obo Group, with unit H8 hosting most of the REE reserves. It is ...Web
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The Bayan Obo deposit is located in the northern margin of the North China Craton (NCC), bordering on the Central Asian Orogenic Belt to the north (Xiao et al. 2003; Xiao and Kusky 2009) (Fig. 17.1).Gentle fold structures, composed mostly of the low grade meta-sedimentary units of the Mesoproterozoic Bayan Obo Group, are distributed from …Web
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The new results demonstrate that the Bayan Obo REE-Nb deposit is a product of mantle-derived carbonatite magmatism at ca. 1.30 Ga. Field relations show that emplacement of the Bayan Obo ...Web
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Introduction. Bayan Obo ore deposit is the largest rare-earth element (REE) deposit, the second largest niobium (Nb) deposit in the world, and also a large iron (Fe) …Web
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The Bayan Obo giant REE-Nb-Fe deposit is located at the north margin of the North China Craton, close to the suture between the …Web
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The H8 dolomite host rock of the Bayan Obo iron-niobium-rare earth-element ore deposit of Inner Mongolia, China-origin, episodic mineralization, and implications. USGS Circ. 1989, 1035, 8–10.Web
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The Bayan Obo Fe-REE-Nb deposit is the largest rare earth deposit in the world, which also contains huge amounts of niobium resources, hosting 83% of industrial reserves in China.Web
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Bayan Obo deposit, Bayan Obo, Bayan Obo mining district, Baotou City (Baotou Prefecture), Inner Mongolia, China : Super large polygenic REE-Fe-Nb deposit (Bayan-Obo type), discovered as an iron deposit in 1927. REE minerals were discovered in 1936, and Nb-bearing ores in the late 1950s. Reserves are estimated at ...Web
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Bayan Obo is the world's largest REE deposit and is hosted in the Paleoproterozoic Bayan Obo Group, Inner Mongolia. The REE resources are …Web
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Bayan Obo REE-Nb-Fe ore deposit in Inner Mongolia is the largest light REE deposit in the world. It is located in the northern margin of the North China Craton (Wang et al., 1992), and hosted in Mesoproterozoic Bayan Obo Group (Li, 1959).The Bayan Obo Group consists of an over 10 km thick succession of low-grade metamorphosed …Web
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The Bayan Obo rare earth element (REE) deposit in Inner Mongolia, northern China, is the largest REE deposit in the world, whose mineralization process remains controversial. There are dozens of carbonatite dykes that are tightly related to the deposit. Here we report the petrological and mineralogical characteristics of a typical …Web
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Although the origin of the large body of "H8" ore-hosting dolomite marble in Bayan Obo REE-Nb-Fe deposit is still under debate (Institute of Geochemistry, Academia Sinica 1988; Sun et al. 2012, 2013; Zhu et al. 2015; Fan et al. 2015; Yang et al. 2019), tens of carbonatite dykes occur at the vicinity of Bayan Obo are undoubtedly of ...Web
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The location of the Bayan Obo deposit and its geological setting. (a) Simplified map showing the location of the Bayan Obo deposit, the North China Craton, and the Central Asian Orogenic Belt, modified after Jahn et al 58. (b) Sketch geological map of the Bayan Obo deposit and its tectonic setting, modified after Liu et al 3.The Bayan …Web
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The Bayan Obo Fe–REE–Nb deposit is the world's largest rare earth element (REE) resource and with the increasing focus on critical metal resources has become a focus of global interest. The deposit is hosted in the Palaeoproterozoic Bayan Obo Group, mainly concentrated in the H8 dolomite marble. The ores consist of light REE enriched ...Web
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The Bayan Obo deposit in Inner Mongolia is a crucial source of rare earth elements-niobium-iron, with significant economic importance for China. The ore-bearing dolomite is believed to have originated from mantle-derived magma, indicating high prospectivity in the deeper sections. However, the deep distribution of the ore-bearing dolomite ...Web
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The Bayan Obo deposit in the Inner Mongolia, North China Craton, is the largest rare-earth element (REE) resource in the world. The deposit is hosted in Mesoproterozoic sediments of the Bayan Obo Group, the lithological sequence of which has been divided into seventeen units (H 1 –H 17).The REE mineralization is mainly …Web
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Geology of deposit. The Bayan Obo Fe-REE-Nb deposit is located in the northern margin of North China Craton (NCC) and is surrounded by the Central Asia …Web
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Rare earth elements (REE), critical metals for high clean-energy technology, are growing demand in the global market. China is the world's leading REE producer of the world since 1990s and hosts a variety of deposit types. Currently, nearly all the light REE production in the global market is from the carbonatite-alkaline related REE deposits …Web
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The Bayan Obo REE-Nb-Fe deposit is located on the north margin of the North China Craton (NCC) (Fig. 1).Archean and Paleoproterozoic metamorphic basement rocks are preserved in this region (Liu et al., 2011).During the breakup of Columbia Supercontinent, a series of Paleo-Mesoproterozoic (~1.8–1.4 Ga; Zhong et al., 2015, Liu …Web
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An aerial view of the Bayan Obo deposit where the new ore was discovered. (Image credit: Getty Images) "Depending on the volume and quality of this niobium it could make China self-sufficient ...Web
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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) …Web
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The genesis and timing of formation of the giant Bayan Obo deposit, the world's largest rare earth element (REE) deposit in the western part of the late Paleozoic northern North China continental arc (NCA), are highly controversial due to complex mineral assemblages and reported ages of mineralization.Web
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The Bayan Obo Fe-REE-Nb deposit is the largest rare earth deposit in the world, which also contains huge amounts of niobium resources, hosting 83% of industrial reserves in China. The previous ...Web
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The Bayan Obo deposit is the largest rare earth element (REE) accumulation in the world, and also an important iron and niobium resource in China (Xie …Web
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The Bayan Obo deposit was first discovered as an Fe deposit in 1927, and later was recognized as a polymetallic deposit of Fe, REE's, and Nb. The estimated total reserve of Fe (average grade Fe=35 weight (wt.) percent) for the Bayan Obo deposit is at least 1,500 million metric tons (Drew and others, 1990).Web
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The Bayan Obo REE-Nb-Fe deposit is located about 150 km north of Baotou City, China. The tectonic location is situated in the northern margin of the North China Craton and adjacent to the Central Asian Orogenic Belt in the north (Fig. 1 a).The main fault in the area is the Wulanbaolige deep fault in the north of Kuangou anticline, also known …Web
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The Bayan Obo deposit is the largest REE deposit, and the second largest Nb deposit, in the world. 11,12 The Nb resource reserves are expected to be 2.2 metric tons (Mt) with an average grade of 0.13% Nb 2 O 5, accounting for more than 70% of China's Nb resources, while the rare-earth element (REE) reserves rank first in the world, reaching …Web
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Abstract. The genesis of the Bayan Obo giant rare earth element (REE) deposit has been debated for several decades. Here, we report the isotopic effects of …Web
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The Bayan Obo REEs deposit, the dominant supplier of rare earth metals of the world, has been attracting attention from all walks of life due to its enormous reserves of LREEs, Nb, Fe and Sc metals. Since being first found in 1927 as an iron deposit by Mr. Daoheng Ding, extensive research work has been conducted regarding its mineralogical …Web
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The Bayan Obo REE-Nb-Fe deposit is located on the northern margin of the North China Craton (NCC), bordered by the Central Asian Orogenic Belt to the north (Fig. 1).The basement rocks within the area consist of Neoarchean mylonitic granite gneiss, Paleoproterozoic syenite, granodiorite, and granite gneiss (Fan et al. 2016).The Bayan …Web
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