Panxi region (South-West China): Tectonics, magmatism and metallogenesis. A review

Munteanu, Marian; Yao, Yong; Wilson, A. H.; Chunnett, Gordon; Luo, Yi; He, Hong; Cioacă, Mihaela Elena; Wen, Maolin

doi:10.1016/j.tecto.2013.09.008

Cited by 32 publications

(10 citation statements)

References 149 publications

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“…Furthermore, the zircon U-Pb age range of this study is similar to the Panxi area of ELIP Munteanu et al, 2013;Shellnutt, 2014). A large number of zircon U-Pb ages by various methods including SHRIMP, LA-ICPMS and TIMS methods have been reported from the Panxi area (Shellnutt andZhou, 2007, 2008;Zhou et al, 2008;Shellnutt et al, 2009Shellnutt et al, , 2011aShellnutt et al, , 2011bXu et al, 2008;Zhong et al, 2007Zhong et al, , 2009Zhong et al, , 2011.…”

Section: Comparison With A-type Granites From the Panxi Areasupporting

confidence: 62%

Zircon U–Pb ages and Hf isotopic compositions of alkaline silicic magmatic rocks in the Phan Si Pan-Tu Le region, northern Vietnam: Identification of a displaced western extension of the Emeishan Large Igneous Province

Usuki

Lan

Tran

et al. 2015

Journal of Asian Earth Sciences

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Section: Comparison With A-type Granites From the Panxi Areasupporting

confidence: 62%

Zircon U–Pb ages and Hf isotopic compositions of alkaline silicic magmatic rocks in the Phan Si Pan-Tu Le region, northern Vietnam: Identification of a displaced western extension of the Emeishan Large Igneous Province

Usuki

Lan

Tran

et al. 2015

Journal of Asian Earth Sciences

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“…Dykes of Cenozoic age are found sporadically and trend E–W or NE (Guan et al ., ; Jia et al ., ). They include lamprophyre dykes and were intruded coeval with the Himalayan orogeny (Munteanu et al ., ).…”

Section: Geological Backgroundmentioning

confidence: 97%

Giant radiating mafic dyke swarm of the Emeishan Large Igneous Province: Identifying the mantle plume centre

Zhang

Ernst

et al. 2015

Terra Nova

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In many continental large igneous provinces, giant radiating dyke swarms are typically interpreted to result from the arrival of a mantle plume at the base of the lithosphere. Mafic dyke swarms in the Emeishan large igneous province (ELIP) have not received much attention prior to this study. We show that the geochemical characteristics and geochronological data of the mafic dykes are broadly similar to those of the spatially associated lavas, suggesting they were derived from a common parental magma. Based on the regional geological data and our field observations, we mapped the spatial distribution patterns of mafic dyke swarms in the ELIP, and recognized six dyke sub-swarms, forming an overall radiating dyke swarm and converging in the Yongren area, Yunnan province. This location coincides with the maximum pre-eruptive domal uplift, and is close to the locations of high-temperature picrites. Our study suggests that the Yongren area may represent the mantle plume centre during the peak of Emeishan magmatism.

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“…[]) and (b) Panxi (modified from Munteanu et al . []) rift systems and the associated Siberian and Emeishan large igneous provinces (LIPs). Both are failed rift systems.…”

Section: Pangea Configuration and Style Of Permo‐carboniferous And Pementioning

confidence: 98%

“…Accordingly, the rift system itself is demonstrated to be short lived, that means with a duration lesser than 20 Myr [ Nikishin et al ., ; Saunders et al ., ]. At approximately the same time (258 Ma), the Emeishan basalts, located in southwestern China, could be also associated to rifting [ Courtillot et al ., ; Song et al ., ; Munteanu et al ., ]; however, the so‐called Panxi rift [ Munteanu et al ., , Figure 4] is difficult to characterize because of severe subsequent deformation due to the Himalayan orogeny.…”

Section: Pangea Configuration and Style Of Permo‐carboniferous And Pementioning

confidence: 99%

Style of rifting and the stages of Pangea breakup

et al. 2015

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Pangea results from the progressive amalgamation of continental blocks achieved at 320 Ma.Assuming that the ancient concept of "active" versus "passive" rifting remains pertinent as end-members of more complex processes, we show that the progressive Pangea breakup occurred through a succession of rifting episodes characterized by different tectonic evolutions. A first episode of passive continental rifting during the Upper Carboniferous and Permian led to the formation of the Neo-Tethys Ocean. Then at the beginning of Triassic times, two short episodes of active rifting associated to the Siberian and Emeishan large igneous provinces (LIPs) failed. The true disintegration of Pangea resulted from (1) a Triassic passive rifting leading to the emplacement of the central Atlantic magmatic province (200 Ma) LIP and the subsequent opening of the central Atlantic Ocean during the lowermost Jurassic and from (2) a Lower Jurassic active rifting triggered by the Karoo-Ferrar LIP (183 Ma), which led to the opening of the West Indian Ocean. The same sequence of passive then active rifting is observed during the Lower Cretaceous with, in between, the Parana-Etendeka LIP at 135 Ma. We show that the relationships between the style of rifts and their breakdown or with the type of resulting margins (as magma poor or magma dominated) are not straightforward. Finally, we discuss the respective role of mantle global warming promoted by continental agglomeration and mantle plumes in the weakening of the continental lithosphere and their roles as rifting triggers.

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Panxi region (South-West China): Tectonics, magmatism and metallogenesis. A review

Cited by 32 publications

References 149 publications

Zircon U–Pb ages and Hf isotopic compositions of alkaline silicic magmatic rocks in the Phan Si Pan-Tu Le region, northern Vietnam: Identification of a displaced western extension of the Emeishan Large Igneous Province

Zircon U–Pb ages and Hf isotopic compositions of alkaline silicic magmatic rocks in the Phan Si Pan-Tu Le region, northern Vietnam: Identification of a displaced western extension of the Emeishan Large Igneous Province

Giant radiating mafic dyke swarm of the Emeishan Large Igneous Province: Identifying the mantle plume centre

Style of rifting and the stages of Pangea breakup

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