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Zudong Deposit

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Journal Article
Journal: Economic Geology
Published: 01 May 2019
Economic Geology (2019) 114 (3): 541–568.
...Martin Yan Hei Li; Mei-Fu Zhou; Anthony E. Williams-Jones Abstract The Zudong heavy rare earth element (HREE) deposit in South China is the largest regolith-hosted HREE deposit in the world, with a resource of ~17,600 tonnes (t) of rare earth oxides (REOs) at an average grade of ~0.1 wt % REOs...
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Simplified geological map of the Zudong deposit (after Li et al. 2019). (Color online.)
Published: 01 January 2020
Figure 1. Simplified geological map of the Zudong deposit (after Li et al. 2019 ). (Color online.)
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(a) A simplified geologic map of the Zudong deposit (after Huang et al., 1989) showing sample locations. (b) An elevation profile for the section A-A′ shown in (a) (after Liu et al., 2016).
Published: 01 May 2019
Fig. 2. (a) A simplified geologic map of the Zudong deposit (after Huang et al., 1989 ) showing sample locations. (b) An elevation profile for the section A-A′ shown in (a) (after Liu et al., 2016 ).
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(a) A schematic cross section of the Zudong deposit (after Li et al., 2017). (b) A schematic weathering profile for the Zudong deposit.
Published: 01 May 2019
Fig. 3. (a) A schematic cross section of the Zudong deposit (after Li et al., 2017 ). (b) A schematic weathering profile for the Zudong deposit.
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(a) A schematic model illustrating the formation of the Zudong deposit and (b) favorable environmental conditions (after Li et al., 2017).
Published: 01 May 2019
Fig. 15. (a) A schematic model illustrating the formation of the Zudong deposit and (b) favorable environmental conditions (after Li et al., 2017 ).
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Secondary electron images of clay minerals in the Zudong deposit. (a) A halloysite mesh covering the surface of a weathered albite crystal in the lower C horizon. (b) A close-up of the red square in (a) showing the growth of halloysite tubes in etch pits and on the surface of weathered feldspar. (c) Halloysite tubes growing at the edge of a muscovite sheet in the upper C horizon. (d) Halloysite (red arrows) growing along a cleavage in a muscovite crystal and the partial curling of a muscovite sheet (white arrow) in the upper C horizon. (e) Halloysite forming as a curled-up extension from muscovite in the upper C horizon. (f) An aggregate of long-tubed halloysite (yellow arrows) and hexagonal kaolinite sheets (orange arrows) in the upper B horizon. (g) Accumulation of halloysite tubes (red arrows) on the edge of a vermicular kaolinite stack in the upper B horizon. (h) A euhedral vermicular “kaolinite booklet” in the upper B horizon. (i) An aggregate of illite crystals with halloysite tubes (yellow arrows) in the lower C horizon. Abbreviations: Hal = halloysite, Ill = illite, Kln = kaolinite, Ms = muscovite.
Published: 01 May 2019
Fig. 7. Secondary electron images of clay minerals in the Zudong deposit. (a) A halloysite mesh covering the surface of a weathered albite crystal in the lower C horizon. (b) A close-up of the red square in (a) showing the growth of halloysite tubes in etch pits and on the surface of weathered
Journal Article
Published: 01 January 2020
American Mineralogist (2020) 105 (1): 92–108.
...Figure 1. Simplified geological map of the Zudong deposit (after Li et al. 2019 ). (Color online.) ...
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(a) A schematic soil profile and the corresponding profile of REE content of the Zudong deposit (after Li et al. 2019). (b–g) Field photos of the Zudong deposit. (b) Pedolith of orangish brown appearance with abundant residual grains of quartz. (c) Interface between the pedolith and saprolite at which the relict granitic texture progressively demolished. (d) Upper saprolite of mottled pinkish white appearance due to the abundant kaolinized feldspar, where relict granitic texture is still preserved. (e) Lower saprolite of mottled purplish white appearance. (f) Saprock in which outline of feldspar grains can still be seen. (g) Fresh bedrock with major minerals of quartz, orthoclase, and albite. (Color online.)
Published: 01 January 2020
Figure 2. ( a ) A schematic soil profile and the corresponding profile of REE content of the Zudong deposit (after Li et al. 2019 ). ( b – g ) Field photos of the Zudong deposit. ( b ) Pedolith of orangish brown appearance with abundant residual grains of quartz. ( c ) Interface between
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(a) The distribution of regolith-hosted REE deposits in China (after Li et al., 2017). (b) An enlargement of the box in (a) showing the locations of regolith-hosted LREE and HREE deposits and the distribution of granites and volcanic rocks in the region (after Zhou et al., 2006; Li et al., 2017). The location of the Zudong deposit is marked with a yellow star and those of the other major regolith-hosted HREE deposits in the region by numbers: 1 = Datian deposit, 2 = Xiawentian deposit, 3 = Zhaibeiding deposit. Note that classification of the HREE-dominant deposits as large, medium, and small is based on rare earth oxide resources of >10,000, 5,000–10,000, and <5,000 t, respectively.
Published: 01 May 2019
et al., 2017 ). The location of the Zudong deposit is marked with a yellow star and those of the other major regolith-hosted HREE deposits in the region by numbers: 1 = Datian deposit, 2 = Xiawentian deposit, 3 = Zhaibeiding deposit. Note that classification of the HREE-dominant deposits as large
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Published: 08 March 2021
Table 7. Comparison of the mineralogical, chemical and technological properties of the Exposição halloysite deposit, the Sigma-Aldrich sample, the Campo Alegre deposit in Santa Catarina (Brazil), the Dragon Mine deposit (USA), the Matauri Bay deposit (New Zealand) and the Zudong deposit (China
Journal Article
Journal: Clay Minerals
Published: 08 March 2021
Clay Minerals (2021) 56 (1): 1–15.
...Table 7. Comparison of the mineralogical, chemical and technological properties of the Exposição halloysite deposit, the Sigma-Aldrich sample, the Campo Alegre deposit in Santa Catarina (Brazil), the Dragon Mine deposit (USA), the Matauri Bay deposit (New Zealand) and the Zudong deposit (China...
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Journal Article
Published: 01 November 2024
American Mineralogist (2024) 109 (11): 1945–1959.
...Martin Yan Hei Li; Mei-Fu Zhou Abstract Highly evolved granites can be important hosts of rare earth element (REE) resources, and more importantly, they commonly serve as the protolith for regolith-hosted REE deposits to form during weathering. Highly evolved granites in the Zudong pluton, South...
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Geology of the study area and sampling sites. (a) Schematic geologic map of South China, showing the distribution of Mesozoic and Paleozoic granites. (b) Geologic setting of the Zhaibei and Zudong granite intrusions (modified after Shi et al., 2022; Fan et al., 2023). (c, d) Sampling site outcrops showing bedrock granites and weathering crust at Zudong and Zhaibei deposits, respectively.
Published: 01 June 2024
site outcrops showing bedrock granites and weathering crust at Zudong and Zhaibei deposits, respectively.
Journal Article
Journal: Economic Geology
Published: 01 June 2024
Economic Geology (2024) 119 (4): 871–883.
... site outcrops showing bedrock granites and weathering crust at Zudong and Zhaibei deposits, respectively. ...
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Journal Article
Published: 01 January 2025
American Mineralogist (2025) 110 (1): 114–135.
... of minerals, e.g., crystallinity, morphology, and surface properties. For example, in the Zudong deposit, the world’s largest regolith-hosted HREE deposit, weathering transforms microcrystalline kaolinite into large, highly crystalline vermicular kaolinite, with the latter having the specific surface area...
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Journal Article
Journal: GSA Bulletin
Published: 14 May 2025
GSA Bulletin (2025)
.... Implication for the Generation of Regolith-Hosted REE Deposits It has been inferred that REE enrichment due to alteration is responsible for the high HREE contents in the parent granites from the giant Zudong regolith-hosted HREE deposits (Xu et al., 2017; Fan et al., 2023). With regard to the parent rocks...
Journal Article
Published: 01 June 2023
Clays and Clay Minerals (2023) 71 (3): 362–376.
... , A. E. ( 2019 ). The genesis of regolith-hosted heavy rare earth element deposits: Insights from the world-class Zudong deposit in Jiangxi province, South China . Economic Geology , 114 , 541 – 568 . 10.5382/econgeo.4642 Li , M. Y. H. , Zhou , M.-F. , & Williams-Jones , A. E...
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Journal Article
Published: 01 November 2023
American Mineralogist (2023) 108 (11): 2051–2064.
... in the region, which can be subdivided into LREE- (e.g., Heling, Dingnan and Guposhan) and HREE-dominated types (e.g., Zudong and Dabu) ( Li et al. 2017 ). These REE deposits are temporally and spatially associated with the Middle Jurassic to Late Cretaceous granitic rocks. Figure 1. The distribution...
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Journal Article
Published: 03 July 2023
American Mineralogist (2023) 108 (7): 1298–1314.
... tuff with ages ranging from the Ordovician to the late Cretaceous ( Li et al. 2017 ). There are many ion-adsorption REE deposits such as the Zudong, Pitou, and Zhaibei adjacent to the Zhuguangshan batholith, and two ion-adsorption REE deposits have been found in this batholith ( Fig. 1 ). The regolith...
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Series: Reviews in Economic Geology
Published: 01 January 2016
DOI: 10.5382/Rev.18.06
EISBN: 9781629490922
... LREE; La-Nd-Eu-rich, low Y LREE; medium Y, low Eu LREE; Ce-rich LREE; and those of uncertain affinity ( He and Wang, 1989 ). The Longnan-Xunwu-Xinfeng district in Jiangxi province is the largest IAR district and is the most significant HREE producer in the world. The Zudong and Heling REE deposits...
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