Mesozoic doming extensional tectonics of Wugongshan, South China

Shu, Liangshu; Sun, Youbin; Dezi, Wang; Faure, Michel; Monié, Patrick; Charvet, Jacques

doi:10.1007/bf02878742

Cited by 49 publications

(33 citation statements)

References 10 publications

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“…Taking into account the development of several Cretaceous (ca. 120-130 Ma) extensional domes (e.g., Lushan and Wugong; Faure et al, 1996;Shu et al, 1998;Wang et al, 2001;Lin et al, 2000), it can be inferred that the eastern SCB experienced a switch from transpression to extension between the latest Jurassic and earliest Cretaceous periods (ca. 140 Ma).…”

Section: Structural Patternsmentioning

confidence: 99%

Phanerozoic tectonics of the South China Block: Key observations and controversies

et al. 2013

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Section: Structural Patternsmentioning

confidence: 99%

Phanerozoic tectonics of the South China Block: Key observations and controversies

et al. 2013

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“…Most of these deposits formed in the late Mesozoic related to the Yanshanian (Jurassic to Cretaceous) magmatism, which is generally attributed to the subduction of the Downloaded by [Guangzhou Institute of Geochemistry] at 00:00 09 February 2012 Pacific plate Zaw et al 2007). Furthermore, MesozoicCenozoic basins were well developed in SE China (Shu et al 1998;Shu et al 2004;Deng et al 2004b); they include more than 100 of different sizes, with a total basinal area of >50,000 km 2 in SE China (Shu et al 2007;Shu et al 2009). …”

Section: International Geology Reviewmentioning

confidence: 99%

Mesozoic large magmatic events and mineralization in SE China: oblique subduction of the Pacific plate

Wang

Ling

Ding

et al. 2010

International Geology Review

192

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“…The Upper Jurassic, Middle Triassic and Lower Silurian-Upper Ordovician strata are absent in the area, which means that the studied area was strongly affected by Yanshanian, Indosinian and Caledonian tectonic events [22,23] .…”

Section: Geological Settingmentioning

confidence: 98%

“…The Pingxiang-Jiangshan-Shaoxing fault, the Zhenghe-Dapu fault and the Jiangxi River fault border its northern, southeastern and eastern boundaries, respectively [22] . Data from shallow-seated geological and deep-seated geophysical surveys reveal that both sub-E-W-trending and NE-trending fault and fold zones developed well in Nanling region.…”

Section: Geological Settingmentioning

confidence: 99%

The age and tectonic environment of the rhyolitic rocks on the western side of Wuyi Mountain, South China

Shu

Deng

et al. 2008

Sci. China Ser. D-Earth Sci.

Self Cite

111

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During the geological survey of the metamorphic rocks in Xingning-Wuhua region on the western side of Wuyi Mountain, South China, we discovered the Neoproterozoic rhyolite and rhyolitic greywacke for the first time that outcrop in the Proterozoic metamorphic rocks near Jingnan Town of Xingning County, eastern Guangdong Province. A systematic research on petrology, geochemistry and geochronology of rhyolitic rocks was conducted to understand their tectonic setting and formation age. The Jingnan rhyolite is interbedded with a coeval greywacke, with a total thickness of 60 m; both rhyolite and greywacke display a similar folding and metamorphic pattern. Meta-rhyolite consists of groundmass and phenocrystals including sanidine, orthoclase, and quartz with distinct undulose extinction; the groundmass has been re-crystallized into fine-grain feldspar, quartz and sericite aggregation. Meta-greywacke is composed of crystallinoclastic grains (sanidine, orthoclase, quartz and oligoclase) and clay groundmass. Zircon grains used for the SHRIMP U-Pb analysis are light brown-colored and euhedral or sub-euhedral. Dating data suggest two age groups; eight grains of magma-type zircon with an idiomorphic form yield an age of 972±8 Ma, and the other seven weakly corroded grains of zircon with euhedral to subeuhedral shape construct an average age of 1097±11 Ma, which were captured from older rocks by an uplifting magma, implying that a late Mesoproterozoic basement exists in the Nanling region. In addition, one Paleoproterozoic age, 2035±11 Ma, is obtained from a rounded detrital zircon, indicating that a Paleoproterozoic thermal event took place in the South China. Geochemically, the Jingnan rhyolitic rocks are characterized by high K 2 O content, intermediate Al 2 O 3 content, with the ACNK value 0.98-1.11, and belonging to high-K alkaline series. They are rich in ΣREE, Rb, Th and Ce, depleted in Ba, Sr, Eu, Ti, P and Nb-Ta, and with moderate negative Eu and Sr anomalies. These features indicate that the Jingnan volcanic rocks have an affinity of continental arc that is similar to those of acid volcanic rocks in the SE-China Coastal Region, in other words, a Neoproterozoic tectono-magma event might have taken place in the western Wuyi region, leading to an eruption of high-K calc-alkaline granitic magma.rhyolite, calc-alkaline series, early stage of Neoproterozoic,

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Mesozoic doming extensional tectonics of Wugongshan, South China

Cited by 49 publications

References 10 publications

Phanerozoic tectonics of the South China Block: Key observations and controversies

Phanerozoic tectonics of the South China Block: Key observations and controversies

Mesozoic large magmatic events and mineralization in SE China: oblique subduction of the Pacific plate

The age and tectonic environment of the rhyolitic rocks on the western side of Wuyi Mountain, South China

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