Geochronology and petrogenesis of the Early Cretaceous A-type granite from the Feie'shan W-Sn deposit in the eastern Guangdong Province, SE China: Implications for W-Sn mineralization and geodynamic setting

Liu, Peng; Mao, Jingwen; Santosh, M.; Bao, Zhian; Zeng, Xiaojian; Jia, Lihui

doi:10.1016/j.lithos.2017.12.015

Cited by 63 publications

(45 citation statements)

References 86 publications

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“…Previous studies indicated that the Late Jurassic to Early Cretaceous magmatic activity and metallogenic event are related to the westward oblique subduction of the Paleo‐Pacific Plate beneath the Eurasian continent (Hua et al, ; Jiang et al, ; Li, ; Mao et al, ; Mao et al, ; Yuan et al, ; Zhong, Chen, & Pirajno, ). And the geodynamic origin of Early Cretaceous extension was attributed to the back‐arc spreading induced by the retreat or rollback of the subducted Paleo‐Pacific slab (e.g., Jiang et al, ; Liu et al, ). Due to the ongoing extension during slab rollback, the crust and lithospheric mantle became progressively thinned.…”

Section: Discussionmentioning

confidence: 99%

“…Jia (2016) (Hua et al, 2005;Jiang et al, 2009;Li, 2000;Mao et al, 2008;Mao et al, 2013;Yuan et al, 2015;Zhong, Chen, & Pirajno, 2017). And the geodynamic origin of Early Cretaceous extension was attributed to the back-arc spreading induced by the retreat or rollback of the subducted Paleo-Pacific slab (e.g., Jiang et al, 2015;Liu et al, 2018). Due to the ongoing extension during slab rollback, the crust and lithospheric mantle became progressively thinned.…”

Section: Timing and Geodynamic Setting Of Mineralizationmentioning

confidence: 99%

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Genesis and hydrothermal evolution of the Tiantangshan tin‐polymetallic deposit, south‐eastern Nanling Range, South China

et al. 2018

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The Tiantangshan tin‐polymetallic deposit, located in the Nanling Range of South China, is a medium‐sized polymetallic deposit found in the region in recent years. The deposit is hosted within volcanic rocks, and the orebodies occur in the cupola and outer contact zone of the concealed quartz porphyry, as well as the altered fracture zone of the volcanic rocks close to the intrusive contact. In light of field evidence and petrographic observations, the mineralization can be divided into four stages: greisenization stage (stage I), quartz–cassiterite–wolframite stage (stage II), quartz–fluorite–cassiterite–sulfides stage (stage III), and post‐ore stage (stage IV). Three types of fluid inclusions are present in the hydrothermal topaz, quartz, and fluorite, including H2O‐rich (W‐type, WL‐ and WV‐ subtypes), CO2‐bearing (C‐type), and solid‐bearing (S‐type). Four stages of fluid evolution are observed by detailed fluid inclusion studies: (a) Stage I fluids are trapped under two‐phase immiscible condition, as evidenced by the coexistence of primary aqueous (W‐type) and aqueous‐carbonic (C‐type) fluid inclusions preserved in topaz and quartz; the fluid inclusions display homogenization temperatures of 378–448°C and salinities of 6.0–17.5 wt.% NaCl equiv. (b) Similarly, fluid inclusions in stage II quartz also record immiscible condition, as identified by the coexistence of W‐type and C‐type fluid inclusions with lower homogenization temperatures (308–400°C) and salinities (1.8–14.5 wt.% NaCl equiv.). (c) Stage III fluids are characterized by the coexistence of widespread WL‐subtype, minor S‐type, and rare WV‐subtype fluid inclusions, with similar homogenization temperatures (230–369°C) but contrasting salinities (0.5–39.5 wt.% NaCl equiv.), which indicates an episode of fluid boiling occurred in this stage. (d) Stage IV marks the end of the hydrothermal system characterized by the lower temperatures (175–298°C) and salinities (0.2–3.9 wt.% NaCl equiv.) W‐type fluid inclusions trapped. Microthermometry and H–O isotopes indicate that the early ore‐forming fluids (in stage I) exsolved from the granitic magma and underwent progressive mixing with meteoric water during subsequent ore‐forming process (in stages III and IV). The water–CO2 fluid immiscibility is the main mechanism of cassiterite and wolframite precipitation, while fluid boiling and mixing are probably thought to be the dominant mechanisms for the deposition of sulfide at Tiantangshan. 40Ar/39Ar dating of hydrothermal biotite intergrown with cassiterite shows that tin‐polymetallic mineralization occurred at ~133 Ma which is coeval with the hidden intrusions. Taken together, these lines of evidence confirm that the Tiantangshan deposit is a magmatic hydrothermal greisen–quartz–vein type tin‐polymetallic deposit that formed in the lithospheric extension and thinning setting associated with the postsubduction Paleo‐Pacific Plate tectonic regime that influenced South China.

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Section: Discussionmentioning

confidence: 99%

Section: Timing and Geodynamic Setting Of Mineralizationmentioning

confidence: 99%

Genesis and hydrothermal evolution of the Tiantangshan tin‐polymetallic deposit, south‐eastern Nanling Range, South China

et al. 2018

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“…Since the introduction of the A-type granite classification by Loiselle and Wones [1], rocks of this type have been studied extensively due to their important geodynamic significance, complicated petrogenesis and economic potential [2][3][4][5][6][7][8][9][10][11][12][13]. It has been recognized that A-type granites can be formed in a variety of extensional regimes, such as continental back-arc extension, post-collisional extension or within-plate settings [2,14].…”

Section: Introductionmentioning

confidence: 99%

“…It has been recognized that A-type granites can be formed in a variety of extensional regimes, such as continental back-arc extension, post-collisional extension or within-plate settings [2,14]. In recent years, there have been many studies on the origin and oxidation state of A-type granites and their relationships to mineralization [7][8][9][10]12,13]. In general, previous workers have related oxygen fugacity and a degree of magma contamination to different types of mineralization [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Geochemical Characteristics of A-Type Granite near the Hongyan Cu-Polymetallic Deposit in the Eastern Hegenshan-Heihe Suture Zone, NE China: Implications for Petrogenesis, Mineralization and Tectonic Setting

2019

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In the eastern Hegenshan-Heihe suture zone (HHSZ) of NE China, Cu-Au hydrothermal mineralization at the newly discovered Hongyan deposit is associated with the Shanshenfu alkali-feldspar granite (SAFG). Zircon U-Pb dating showed that the inner phase and outer phase of the SAFG were formed at 298.8 ± 1.0 Ma and 298.5 ± 1.0 Ma, respectively. Whole rock geochemistry suggests that the SAFG can be classified as an A-type granite. Halfnium isotopes and trace elements in zircon suggest that the SAFG has high Ti-in-zircon crystallization temperature (721–990 °C), high magmatic oxygen fugacity and largely positive εHf(t) (from +6.0 to +9.9). We proposed that the SAFG was derived from crustal assimilation and fractional crystallization of juvenile crust metasomatized by subducting oceanic crust. The high oxygen fugacity of the SAFG suggests the chalcophile elements (e.g., Cu, Au) remained in the magma as opposed to the magma source. An arc-related juvenile source favors enrichment of Cu and Au in the resulting magma. Combined, these magmatic characteristics suggest Cu ± Au exploration potential for magmatic-hydrothermal mineralization related to the SAFG, and similar bodies along the HHSZ. The results obtained combined with regional geological background suggest that the Permian A-type granites and related mineralization along the HHSZ were formed in a post-collisional slab break-off process.

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“…They enjoy a high reputation both in terms of resource type and aesthetic value e.g., [2,6,20,39]. The mineralization of a large number of polymetallic deposits such as tungsten and tin is considered to be highly correlated with the Mesozoic granitic magmatism e.g., [12,17,25,26,37,44]. At the same time, REE-rich granite regolith is a significant host for the ion-adsorption type Rare Earth Elements (REE) ore resources in South China [9].…”

Section: Introductionmentioning

confidence: 99%

Geochronology, genesis and landscape of Yanshanian granite in Guangzhou area, central Guangdong Province of China

2019

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Based on field geological investigation and zircon U-Pb isotope dating of granites in Guangzhou, central Guangdong, the formation age, petrogenesis and weathering characteristics of granites are discussed. The LA-ICPMS zircon U-Pb ages of Huolushan and Liuqianshan granites in central Guangdong are 159.1 ± 3.5 Ma and 156.2 ± 4.4 Ma, respectively. These granites show low crystallization temperature (~ 800 °C) and negative low ε Hf (t) values (− 9.4 and − 9.8), with two-stage model ages of 1241-1666 Ma, indicating that they were derived from partial melting of the Proterozoic crust. According to the geological and geomorphological characteristics of the granite area in central Guangdong, it is considered that lithology is the material basis of the granite landscape. Structural factors such as joints and faults are important controlling factors. The climatic and hydrological conditions in the granite area also play an important role in the formation of granite landforms.

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Geochronology and petrogenesis of the Early Cretaceous A-type granite from the Feie'shan W-Sn deposit in the eastern Guangdong Province, SE China: Implications for W-Sn mineralization and geodynamic setting

Cited by 63 publications

References 86 publications

Genesis and hydrothermal evolution of the Tiantangshan tin‐polymetallic deposit, south‐eastern Nanling Range, South China

Genesis and hydrothermal evolution of the Tiantangshan tin‐polymetallic deposit, south‐eastern Nanling Range, South China

Geochemical Characteristics of A-Type Granite near the Hongyan Cu-Polymetallic Deposit in the Eastern Hegenshan-Heihe Suture Zone, NE China: Implications for Petrogenesis, Mineralization and Tectonic Setting

Geochronology, genesis and landscape of Yanshanian granite in Guangzhou area, central Guangdong Province of China

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