Ar–Ar and fission-track ages in the Song Chay Massif: Early Triassic and Cenozoic tectonics in northern Vietnam

Maluski, H.; Lepvrier, Claude; Jolivet, Laurent; Carter, Andrew; Roques, Delphine; Beyssac, Olivier; Tang, Ta Trong; Thang, Nguyen Duc; Avigad, Dov

doi:10.1016/s1367-9120(00)00038-9

Cited by 118 publications

(112 citation statements)

References 26 publications

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“…Analytical results from our study show that geochemical characteristics of the Thien Ke granite are very similar to those of the S-type granite of the Song Chay complex, which is exposed on SW side of the Thien Ke pluton (Fig. 2) and was dated at 430 ± 5 Ma (Roger et al, 2000;Carter et al, 2001;Maluski et al, 2001). These imply that the Thien Ke and Song Chay granites are coeval and that they developed via partial melting of similar rocks in the crust during Early Paleozoic time.…”

Section: Emplacement Age Of the Thien Ke Plutonsupporting

confidence: 65%

Petrogenesis and zircon U–Pb ages of the Thien Ke granitic pluton in the Tam Dao region: Implications for early Paleozoic tectonic evolution in NE Vietnam

Nguyen

Hiếu

Hai

et al. 2014

Journal of Mineralogical and Petrological Sciences

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Granites of the Thien Ke pluton that are exposed in the Tam Dao region are of sub-alkaline affinity, belong to the high-K calc-alkaline series, and display typical features of S-type granite. The rocks have high ASI values of 1.14-1.41 and are characterized by high initial 87 Sr/ 86Sr ratios (0.7264-0.7270) and low ε Nd (456 Ma) values (−6.5 to −8.4). All of these characteristics, combined with~1.8 Ga T DM model ages and low Mg# of 13-22, suggest an origin in the partial melting of crustal source rocks. LA-ICP-MS zircon U-Pb analytical results from two samples revealed emplacement ages of the granite at 456 ± 28 and 449 ± 12 Ma. These ages are entirely different from those reported in earlier publications and indicate the existence of a Caledonian tectonothermal event in the study area. The Nd-Sr isotopic data, in conjunction with inherited zircon ages (721-1876 Ma), imply Paleoproterozoic to Neoproterozoic crustal material as the major components of the underlying basement. The new geochronological data provide evidence for early Paleozoic magmatism in the Tam Dao region, which has not been previously identified.

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Section: Emplacement Age Of the Thien Ke Plutonsupporting

confidence: 65%

Petrogenesis and zircon U–Pb ages of the Thien Ke granitic pluton in the Tam Dao region: Implications for early Paleozoic tectonic evolution in NE Vietnam

Nguyen

Hiếu

Hai

et al. 2014

Journal of Mineralogical and Petrological Sciences

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“…The time of Indosinian movement in SC began from middle-Permian (262-267 Ma) [81] and the peak age of collision between SCB and ICB was limited within 258 -243 Ma [15,[88][89][90][91][92][93] , but the peak high-grade metamorphism in the Qinling-Dabie Orogen (QDO) occurred at 230-226 Ma [94,95] posterior to the former. In this case, the crust of SC was successively compressed by two blocks and gradually thickened from south to north [34] .…”

Section: Source Feature and Tectonic Setting Of Granitesmentioning

confidence: 99%

Chronological and geochemical studies of granite and enclave in Baimashan pluton, Hunan, South China

Chen

Hongye³

et al. 2007

SCI CHINA SER D

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Zircon LA-ICP-MS U-Pb dating reveals that the Baimashan Pluton is composed mainly of late Indosinian (204.5±2.8 Ma-209.2±3.8 Ma) biotite granodiorites/monzonitic granites (LIGs) and early Yanshanian (176.7±1.7 Ma) two-micas monzonitic granites (EYGs), and the coeval (203.2±4.5 Ma-205.1±3.9 Ma) mafic microgranular enclaves (MMEs) are generally found in the former. In addition, the ages of cores within zircons from LIGs and MMEs ranging from 221.4±4.0 Ma to 226.5±4.1Ma provide evidence of multistage magma intrusion during Indosinian in the study area. Measured 3010±20.6 Ma of inherited zircon age suggests that there may be recycling Archaean curstal material in existence in this area. LIGs and EYGs share some similar geochemical features: subalkaline and peraluminous granites, enrichment of Th, U, K, Ta, Zr, Hf and LREE but depletion of Ba, Nb, P, Ti and Eu, low ε Nd (t) values but high ( 87 Sr/ 86 Sr) i ratios, and old T 2DM (ca. 1.9-2.0 Ga). The behaviors of incompatible elements and REE are mainly dominated by fractional crystallization of plagioclase, K-feldspar, ilmenite and apatite, but that of Sr isotope mainly controlled by EC-AFC. They are crust-sourced and derived from partial melting of paleo-Proterozoic metagreywackes and related to biotite dehydration melting. LIGs are formed in post-collisional tectonic setting as crustal local extension and thinning during late Indosinian. But EYGs may be evolved products of congeneric granitic magma with LIGs formed in late Indoinian, which were emplaced again when crust underwent extensive thinning and extension in post-orogenic tectonic setting during Yanshanian in SC after undergoing EC-AFC. MMEs should be cognate enclaves and derived from liquid immiscibility of host magma. granite, mafic microgranular enclave, zircon LA-ICP-MS dating, lithogenesis, EC-AFC

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“…Since the closure temperature theory was proposed by Dodson (1973), it has found wide applications in thermal chronology to constrain thermal history both at home and abroad (Wu Zhenhan et al, 2000;Roger et al, 2000;Maluski et al, 2001;Kirby et al, 2002;Yang Jinhui et al, 2004;Zheng Dewen et al, 2004). The conception of closure temperature was developed from the theory.…”

Section: Cooling History Of the Pluton And Its Tectonic Significancementioning

confidence: 99%

Chronology and cooling history of the Tianmenshan pluton in South Jiangxi Province and their geological significance

Zeng

Mao

et al. 2008

Chin. J. Geochem.

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Geochronological studies on the crust-derived Tianmenshan pluton were undertaken by SHRIMP zircon U-Pb dating and Ar-Ar dating of biotite, muscovite and K-feldspar, giving a petrogenetic age of 167 Ma. Owing to the closure systems in different minerals, the cooling history of the pluton can be determined with an age-temperature diagram. The late hydrothermal event has been recognized, which is related probably with mineralization. In terms of the comparative geochronological and petrologic records, it is concluded that there are some constrains on tectonic evolution and that the formation of the Tianmenshan pluton proceeded in a transition period from Indosinian post-orogeny extension to strong compressive tectonics. And the timing of the hydrothermal event matches the compressive climax of the Yanshanian orogeny. The temporal gap between granite emplacement and wolframite mineralization could last 10-20 Ma owing to the low cooling rate of the pluton.

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Ar–Ar and fission-track ages in the Song Chay Massif: Early Triassic and Cenozoic tectonics in northern Vietnam

Cited by 118 publications

References 26 publications

Petrogenesis and zircon U–Pb ages of the Thien Ke granitic pluton in the Tam Dao region: Implications for early Paleozoic tectonic evolution in NE Vietnam

Petrogenesis and zircon U–Pb ages of the Thien Ke granitic pluton in the Tam Dao region: Implications for early Paleozoic tectonic evolution in NE Vietnam

Chronological and geochemical studies of granite and enclave in Baimashan pluton, Hunan, South China

Chronology and cooling history of the Tianmenshan pluton in South Jiangxi Province and their geological significance

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