Age and genesis of the W-Bi-Cu-F (Au) Nui Phao deposit, Northeast Vietnam: Constrains from U-Pb and Ar-Ar geochronology, fluid inclusions study, S-O isotope systematic and scheelite geochemistry

Nevolko, Peter A.; Pham, Thi Dung; Svetlitskaya, Tatyana V.; Tran, Tri; Shelepaev, R.A.; Fominykh, Pavel A.; Pham, Ngoc Can

doi:10.1016/j.oregeorev.2020.103578

Cited by 14 publications

(2 citation statements)

References 113 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hoefs (1997) for the range of mantle source fluid. Data sources: Pan et al, 2020; Brown, Bowman, & Kelly, 1985; Nguyen et al, 2020; Lei, Duan, Jiang, & Xiong, 2018; Liu, Zhang, & Yang, 2012 [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: Discussionmentioning

confidence: 99%

Fluid inclusions, stable isotopes (H–O–S), and age constraints on the genesis of the Basitielieke polymetallic tungsten deposit in the Altay, Xinjiang, NW China

Yang

Li²,

et al. 2021

Geological Journal

View full text Add to dashboard Cite

The Chinese Altay in Northwest China and adjacent regions in the Russian and Mongolian Altay form a tungsten province within the Central Asian Orogenic Belt. Unlike the Russian and Mongolian Altay, almost no tungsten deposits in the Chinese Altay have been reported. The Basitielieke deposit located in the Altay orogenic belt in Xinjiang is a newly discovered polymetallic tungsten deposit hosted in the skarn in the exocontact zone of a granite pluton. Mineralization can be divided into the skarn period and supergene oxidization period, the skarn period can be further divided into a prograde skarn stage (I), a retrograde skarn stage (II), and a quartz–sulphide stage (III). Scheelite mineralization mainly occurred in stage II, and Cu–Zn–Au formed in stage III. The ore‐forming fluid can be divided into a H2O–NaCl systems, including stage I (211 to 480°C and 2.24 to 14.04 wt% NaCl equiv) and stage II (178 to 336°C and 4.96 to 9.47 wt% NaCl equiv), and a H2O–CO2 (±CH4/N2)–NaCl system in stage III (130 to 434°C and 1.40 to 9.60 wt% NaCl equiv). Hydrogen, oxygen, and sulphur isotope compositions indicate that magmatic water participated in the hydrothermal mineralization system in stage I, and meteoric water increased with the process of mineralization. Sulphur was derived from deep‐seated magmas. The Basitielieke deposit is a reduced skarn polymetallic tungsten deposit. The deposit formed by hydrothermal fluid from the granite interacting with strata during the Early Permian, the fluid–rock interaction and fluid mixing (magmatic water and meteoric water) was the main precipitation mechanism of the Basitielieke polymetallic tungsten deposit.

show abstract

Section: Discussionmentioning

confidence: 99%

Fluid inclusions, stable isotopes (H–O–S), and age constraints on the genesis of the Basitielieke polymetallic tungsten deposit in the Altay, Xinjiang, NW China

Yang

Li²,

et al. 2021

Geological Journal

View full text Add to dashboard Cite

show abstract

“…In recent years, several studies have also found that there are limitations in using δEu to constrain redox state not only in skarn deposits but also in porphyry-related and/or orogenic deposits. For example, all types of scheelite in the Nui Phao W deposit from Vietnam are characterized by negative Eu anomalies (Nguyen et al 2020) (Ghaderi et al 1999;Sciuba et al 2020). Therefore, it is difficult to define the redox state by δEu alone, and it is necessary to make a comprehensive consideration to judge the evolution history of fluid and its redox state variation for different kinds of ore deposits.…”

Section: Redox Conditions During W Mineralizationmentioning

confidence: 99%

Scheelite U-Pb geochronology and trace element geochemistry fingerprint W mineralization in the giant Zhuxi W deposit, South China

Zhao,

Zhai,

Hong

et al. 2023

American Mineralogist

View full text Add to dashboard Cite

Skarn-type tungsten deposits are widely distributed all over the world, and contribute more than 70% of the world's W supply. The temporal relation between the W mineralization and causative intrusions, and the evolution of ore-forming fluids are matters of ongoing debate. In this study, we combine in situ LA-ICP-MS U-Pb dating and trace element compositions of scheelite from Zhuxi, the world's largest W deposit, and compare them with literature data to address the above issues. Three primary ore stages exist at Zhuxi: prograde skarn, retrograde skarn and quartz-sulfide stages. Most scheelite occurs in the retrograde skarn stage and is further subdivided into three generations: Sch A, B and C. The obtained LA-ICP-MS U-Pb ages for three scheelite generations in the Zhuxi deposit are 154.0 ± 2.8, 150.3 ± 3.5 and 150.4 ± 6.3 Ma, respectively, indicating that the entire W mineralization is closely related to the emplacement of the nearby Late Jurassic granites (~154 to 150 Ma, zircon U-Pb ages). In situ LA-ICP-MS trace element results demonstrate that Sch A shows the highest Mo content (mean=1002 ppm), where those for Sch B and Sch C are 109 and 45 ppm, respectively. These, combined with the gradually increasing trend of Ce contents and δCe values, indicate a shift from oxidizing to reducing conditions for the ore-forming fluid. All three scheelite generations yield significant positive δEu anomalies, which are considered to be unrelated to the redox state, but caused by the addition of Eu (e.g., feldspar dissolution). The high Y/Ho ratio of scheelite and a good correlation between Y/Ho ratio and δEu (R 2 = 0.96) suggest that intense fluid-rock interactions between ore fluids and the Shuangqiaoshan Group metasedimentary rocks as well as earlier-formed skarns drove fluid evolution. This study demonstrates that scheelite U-Pb geochronology is a useful technique when identifying the temporal link between hydrothermal W mineralization and the causative intrusion. The results of this study also highlight that the reactions of the ore fluids with wall rocks and earlier-formed skarns significantly

show abstract

The nature and origin of granitic magmas and their control on the formation of giant tungsten deposits

Wu,

Williams-Jones,

Zhao

et al. 2023

Earth-Science Reviews

View full text Add to dashboard Cite

Age and genesis of the W-Bi-Cu-F (Au) Nui Phao deposit, Northeast Vietnam: Constrains from U-Pb and Ar-Ar geochronology, fluid inclusions study, S-O isotope systematic and scheelite geochemistry

Cited by 14 publications

References 113 publications

Fluid inclusions, stable isotopes (H–O–S), and age constraints on the genesis of the Basitielieke polymetallic tungsten deposit in the Altay, Xinjiang, NW China

Fluid inclusions, stable isotopes (H–O–S), and age constraints on the genesis of the Basitielieke polymetallic tungsten deposit in the Altay, Xinjiang, NW China

Scheelite U-Pb geochronology and trace element geochemistry fingerprint W mineralization in the giant Zhuxi W deposit, South China

The nature and origin of granitic magmas and their control on the formation of giant tungsten deposits

Contact Info

Product

Resources

About