Ore genesis and geodynamic setting of the Lianhuashan porphyry tungsten deposit, eastern Guangdong Province, SE China: constraints from muscovite 40Ar−39Ar and zircon U–Pb dating and Hf isotopes

Peng Liu, Jingwen Mao, Franco Pirajno, Lihui Jia, Feng Zhang, Yang Li

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The Lianhuashan deposit has long been regarded as a typical tungsten porphyry deposit, located in the eastern Guangdong Province, in the Southeastern Coastal Metallogenic Belt (SCMB). LA–MC–ICP–MS zircon U–Pb dating of the quartz porphyry yielded a weighted mean 206Pb/238U age of 137.3 ± 2.0 Ma, which is interpreted as the emplacement age of the quartz porphyry. Hydrothermal muscovite yielded a plateau 40Ar/39Ar age of 133.2 ± 0.9 Ma, which is consistent with the zircon U–Pb age, suggesting that the tungsten mineralization is genetically related to the quartz porphyry. Combined with previous studies, we suggest that there is a 145–135 Ma episode linking the granitic magmas with W–Sn ore systems in the SCMB. Zircon εHf (t) values of the quartz porphyry are in range of − 3.8 to 0.9, and the two-stage Hf model ages (TDM2) are 1.1–1.4 Ga, which is younger than the basement rocks in the Cathaysia Block (1.8–2.2 Ga), signifying that the quartz porphyry was predominantly derived from melting of Mesoproterozoic crust containing variable amounts of mantle components. In combination with the newly recognized coeval alkaline/bimodal magmatism and A-type granites in eastern Guangdong, we suggest that the 145–135 Ma W–Sn metallogenic event of the SCMB is related to a geodynamic setting of large-scale lithospheric extension and thinning, which can be ascribed to melting of the crust caused by mantle upwelling, triggered by the oblique subduction of the Izanagi plate.

Original languageEnglish
Pages (from-to)797–814
Number of pages18
JournalMineralium Deposita
Volume53
Issue number6
Early online date2018
DOIs
Publication statusPublished - Aug 2018

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Tungsten deposits
Geodynamics
Quartz
muscovite
geodynamics
tungsten
dating
porphyry
Isotopes
Ores
China
zircon
quartz
isotopes
deposits
minerals
isotope
crusts
Earth mantle
Melting

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@article{a877e84327b64512911076103587cf61,
title = "Ore genesis and geodynamic setting of the Lianhuashan porphyry tungsten deposit, eastern Guangdong Province, SE China: constraints from muscovite 40Ar−39Ar and zircon U–Pb dating and Hf isotopes",
abstract = "The Lianhuashan deposit has long been regarded as a typical tungsten porphyry deposit, located in the eastern Guangdong Province, in the Southeastern Coastal Metallogenic Belt (SCMB). LA–MC–ICP–MS zircon U–Pb dating of the quartz porphyry yielded a weighted mean 206Pb/238U age of 137.3 ± 2.0 Ma, which is interpreted as the emplacement age of the quartz porphyry. Hydrothermal muscovite yielded a plateau 40Ar/39Ar age of 133.2 ± 0.9 Ma, which is consistent with the zircon U–Pb age, suggesting that the tungsten mineralization is genetically related to the quartz porphyry. Combined with previous studies, we suggest that there is a 145–135 Ma episode linking the granitic magmas with W–Sn ore systems in the SCMB. Zircon εHf (t) values of the quartz porphyry are in range of − 3.8 to 0.9, and the two-stage Hf model ages (TDM2) are 1.1–1.4 Ga, which is younger than the basement rocks in the Cathaysia Block (1.8–2.2 Ga), signifying that the quartz porphyry was predominantly derived from melting of Mesoproterozoic crust containing variable amounts of mantle components. In combination with the newly recognized coeval alkaline/bimodal magmatism and A-type granites in eastern Guangdong, we suggest that the 145–135 Ma W–Sn metallogenic event of the SCMB is related to a geodynamic setting of large-scale lithospheric extension and thinning, which can be ascribed to melting of the crust caused by mantle upwelling, triggered by the oblique subduction of the Izanagi plate.",
keywords = "Lianhuashan, Muscovite Ar–Ar, Porphyry tungsten deposit, Southeastern Coastal Metallogenic Belt, Zircon U–Pb",
author = "Peng Liu and Jingwen Mao and Franco Pirajno and Lihui Jia and Feng Zhang and Yang Li",
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Ore genesis and geodynamic setting of the Lianhuashan porphyry tungsten deposit, eastern Guangdong Province, SE China : constraints from muscovite 40Ar−39Ar and zircon U–Pb dating and Hf isotopes. / Liu, Peng; Mao, Jingwen; Pirajno, Franco; Jia, Lihui; Zhang, Feng; Li, Yang.

In: Mineralium Deposita, Vol. 53, No. 6, 08.2018, p. 797–814.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Ore genesis and geodynamic setting of the Lianhuashan porphyry tungsten deposit, eastern Guangdong Province, SE China

T2 - constraints from muscovite 40Ar−39Ar and zircon U–Pb dating and Hf isotopes

AU - Liu, Peng

AU - Mao, Jingwen

AU - Pirajno, Franco

AU - Jia, Lihui

AU - Zhang, Feng

AU - Li, Yang

PY - 2018/8

Y1 - 2018/8

N2 - The Lianhuashan deposit has long been regarded as a typical tungsten porphyry deposit, located in the eastern Guangdong Province, in the Southeastern Coastal Metallogenic Belt (SCMB). LA–MC–ICP–MS zircon U–Pb dating of the quartz porphyry yielded a weighted mean 206Pb/238U age of 137.3 ± 2.0 Ma, which is interpreted as the emplacement age of the quartz porphyry. Hydrothermal muscovite yielded a plateau 40Ar/39Ar age of 133.2 ± 0.9 Ma, which is consistent with the zircon U–Pb age, suggesting that the tungsten mineralization is genetically related to the quartz porphyry. Combined with previous studies, we suggest that there is a 145–135 Ma episode linking the granitic magmas with W–Sn ore systems in the SCMB. Zircon εHf (t) values of the quartz porphyry are in range of − 3.8 to 0.9, and the two-stage Hf model ages (TDM2) are 1.1–1.4 Ga, which is younger than the basement rocks in the Cathaysia Block (1.8–2.2 Ga), signifying that the quartz porphyry was predominantly derived from melting of Mesoproterozoic crust containing variable amounts of mantle components. In combination with the newly recognized coeval alkaline/bimodal magmatism and A-type granites in eastern Guangdong, we suggest that the 145–135 Ma W–Sn metallogenic event of the SCMB is related to a geodynamic setting of large-scale lithospheric extension and thinning, which can be ascribed to melting of the crust caused by mantle upwelling, triggered by the oblique subduction of the Izanagi plate.

AB - The Lianhuashan deposit has long been regarded as a typical tungsten porphyry deposit, located in the eastern Guangdong Province, in the Southeastern Coastal Metallogenic Belt (SCMB). LA–MC–ICP–MS zircon U–Pb dating of the quartz porphyry yielded a weighted mean 206Pb/238U age of 137.3 ± 2.0 Ma, which is interpreted as the emplacement age of the quartz porphyry. Hydrothermal muscovite yielded a plateau 40Ar/39Ar age of 133.2 ± 0.9 Ma, which is consistent with the zircon U–Pb age, suggesting that the tungsten mineralization is genetically related to the quartz porphyry. Combined with previous studies, we suggest that there is a 145–135 Ma episode linking the granitic magmas with W–Sn ore systems in the SCMB. Zircon εHf (t) values of the quartz porphyry are in range of − 3.8 to 0.9, and the two-stage Hf model ages (TDM2) are 1.1–1.4 Ga, which is younger than the basement rocks in the Cathaysia Block (1.8–2.2 Ga), signifying that the quartz porphyry was predominantly derived from melting of Mesoproterozoic crust containing variable amounts of mantle components. In combination with the newly recognized coeval alkaline/bimodal magmatism and A-type granites in eastern Guangdong, we suggest that the 145–135 Ma W–Sn metallogenic event of the SCMB is related to a geodynamic setting of large-scale lithospheric extension and thinning, which can be ascribed to melting of the crust caused by mantle upwelling, triggered by the oblique subduction of the Izanagi plate.

KW - Lianhuashan

KW - Muscovite Ar–Ar

KW - Porphyry tungsten deposit

KW - Southeastern Coastal Metallogenic Belt

KW - Zircon U–Pb

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U2 - 10.1007/s00126-017-0779-8

DO - 10.1007/s00126-017-0779-8

M3 - Article

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SN - 0026-4598

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ER -