Cretaceous extension of the Ganhang Tectonic Belt, southeastern China: constraints from geochemistry of volcanic rocks

Wu, Ganguo; Zhang, Da; Tie-zeng, Yan; Di, Yongjun; Wang, Longwu

doi:10.1016/j.cretres.2006.03.008

Cited by 27 publications

(13 citation statements)

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“…Late Triassic Indosinian orogeny brought about by the suturing of Indochina and South China blocks produced acidic igneous intrusions near the Red River suture zone and within Palawan and Mindoro (Holloway 1982;Knittel et al 2010). A northwest-dipping subduction zone along the southeastern Mainland Asia margin transpired in the Middle Jurassic to Mid-Cretaceous and was manifested through a series of calc-alkalic extrusions and intermediate to acid intrusions exposed only in southeastern Vietnam and eastern China (Hamilton 1979;Holloway 1982;Yu et al 2006). Subduction ceased in Late Cretaceous and marked the beginning of continental crust attenuation in the southern margin of Mainland Asia that continued until Eocene (Holloway 1982).…”

Section: Mindoro Continental Blockmentioning

confidence: 98%

Petrography, geochemistry, and tectonics of a rifted fragment of Mainland Asia: evidence from the Lasala Formation, Mindoro Island, Philippines

Concepción

Dimalanta

Yumul

et al. 2011

Int J Earth Sci (Geol Rundsch)

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Petrological and geochemical investigations of the sedimentary Lasala formation in northwest Mindoro, Philippines, offer new insights into the origin of this geologically contentious region. Mindoro island's position at the boundary between Sundaland and the Philippine Mobile Belt has led to variable suggestions as to how much of it is continent derived or not. The Eocene Lasala formation overlies the Jurassic Halcon metamorphics, a regionally metamorphosed suite generally thought to have formed as a result of arc-continent collision processes. The sedimentary formation consists mainly of sandstones and shales interbedded with mudstones, basalt flows, and subordinate limestones and conglomerates. Petrographic information on the Lasala clastic rocks demonstrates a uniform framework composition that is predominantly quartzose. Major oxide, trace element abundances, and various elemental ratios similarly impart a strongly felsic signature. These characteristics are taken to indicate a chiefly continental, passive margin derivation and deposition of the Lasala sediments during the Eocene. The weak indication of active margin influence is suggested to be an inherited signature, supported by paleogeographic models of the southeastern Asian margin area during the preCenozoic.

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Section: Mindoro Continental Blockmentioning

confidence: 98%

Petrography, geochemistry, and tectonics of a rifted fragment of Mainland Asia: evidence from the Lasala Formation, Mindoro Island, Philippines

Concepción

Dimalanta

Yumul

et al. 2011

Int J Earth Sci (Geol Rundsch)

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“…During the Early Cretaceous, a peak period of volcanic eruption, the SE China block had been occupied by the paleo-Pacific regime, and the whole SE China coastal area was extensively covered by volcanic rocks [33,34] , forming a large-scale NE-trending Early Cretaceous volcanic province. The northwestward subduction of paleo-Pacific plate reactivated the tectonic framework that had been formed in the paleo-Tethys regime.…”

Section: Transformation Of Tectonic Regimesmentioning

confidence: 99%

Jurassic sedimentary features and tectonic settings of southeastern China

Shu

Wang

Sha

et al. 2009

Sci. China Ser. D-Earth Sci.

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Two types of the Jurassic basins are distinguished in SE China based on their geodynamic features: the Late Triassic-Early Jurassic post-orogenic basins and the Middle Jurassic intra-continental extensional basins. The Lower Jurassic sequence shows a change from coarse-to fine-grained accumulation, suggesting a gradually deepening depositional environment from river to shore-lake and to deep-water lake. In contrast, the Middle Jurassic accumulation was changed from claystone to conglomerate along the coastal provinces in SE China, indicative of an initial crustal uplift. The Wuyi Mountains have been a paleogeograghic separating zone since the Middle Jurassic. The Late Jurassic strata are absent in most areas of SE China. A large-scale bimodal intra-continental rift-type volcanism occurred during the Middle Jurassic along a 40-60 km wide and 200 km long area in western Fujian and southern Jiangxi provinces, which is most likely the strongest volcanism in SE China since the Cambrian. The SHRIMP zircon U-Pb analyses on the rhyolite from the Dongkeng basin in the southern Jiangxi area yield a concord U-Pb age of 160±0.5 Ma, providing an upper age limit for the bimodal volcanic eruption. The analyses of the basin features indicate a change of the depositional environment during the interval from Middle Triassic to Late Triassic from a shallow-sea to an intra-continent in SE China in response to the strong collision between the Yangtze and North China Blocks. Sedimentary structures record a southward direction of Early Jurassic paleo-currents, reflecting that their source areas were to the north side. We propose that the Wuyi region was uplifted as early as Middle Jurassic, followed by a wide E-W-trending extended depression and bimodal volcanism in the western foot of the Wuyi Mountains. Presumably the uplift of the Wuyi domain changed the Middle Jurassic paleogeographic outline and formed the transformational tectonic regime from compression to extension as a tectonic response to the Pacific plate subduction.

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“…북중국지괴 동측에 분 포하는 광범위한 백악기초기 화성활동은 이러한 암석 권맨틀의 변화과정과 연계되어 있는 것으로 추정된다 Chen et al, 2004;Wu et al, 2005). 아울러 북중국지괴 와 남중국지괴 사이의 충돌대 및 남중국지괴 동측에 도 백악기 초기 확장환경하에서 발생한 다양한 암상 의 화성활동들이 보고되고 있다 (Lapierre et al, 1997;Swell and Campbell, 1997;Darbyshire and Sewell, 1997;Li and McCulloch, 1998;Li, 2000;Fan et al, 2001Fan et al, , 2004Guo et al, 2004;Yu et al, 2006;Tang et al, 2008b).…”

Section: 핵심어: 백악기초기 동중국 경상분지 현무암 암석권맨틀unclassified

“…남중국지괴의 경우 백악기초기 화성활동은 대 륙연변부 내지는 북동-남서 방향의 주단층대를 따라 분포하고 있다. 이는 중국-인도차이나 가장자리와 필 리핀 블록 서측이 충돌한 이후의 확장환경하에서 생 성된 것으로 사료된다 (Lapierre et al, 1997;Sewell and Campbell, 1997;Darbyshire and Sewell, 1997;Li and McCulloch, 1998;Li, 2000;Yu et al, 2006). 남중국지괴의 백악기초기 관입암체는 고-칼륨의 I-type 또는 A-type 화강암이 우세하다 (Su et al, 2013;Yang et al, 2013;Zhou et al, 2013;Li and Jiang, 2014).…”

Section: 제될 수 있다unclassified

“…이는 위 암석들이 고-칼륨 칼크-알 칼리 내지는 쇼쇼나이트 계열에 속한다 (Fig. 2) Sr isotopic ratios for Early Cretaceous basaltic rocks from eastern China (Lapierre et al, 1997;Li and McCulloch, 1998;Jahn et al, 1999;Chen et al, 2001Chen et al, , 2004Chen et al, , 2008Fan et al, 2001Fan et al, , 2004Guo et al, 2001Guo et al, , 2004Guo et al, , 2005Guo et al, , 2013Guo et al, , 2014Xu et al, 2002;Zhang et al, , 2004Zhang et al, , 2012Wang et al, 2003Wang et al, , 2004Wang et al, , 2005Wang et al, , 2008Yang et al, 2004Yang et al, , 2005aYang et al, , 2006Yang et al, , 2012aLiu et al, 2006Liu et al, , 2008aLiu et al, , b, 2009Yu et al, 2006;Huang et al, 2007;Zhao et al, 2007b;Gao et al, 2008;Xie et al, 2008;Tang et al, 2009;Ma et al, 2014a, b). Data source for basaltic rocks from the Hayang Group in the Gyeongsang basin from Kwon et al (2013).…”

Section: 제될 수 있다mentioning

confidence: 99%

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Petrogenesis of Early Cretaceous Magmatism in Eastern China and the Gyeongsang Basin, Korean Peninsula

Choi¹

2016

The Journal of the Petrological Society of Korea

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핵심어: 백악기초기, 동중국, 경상분지, 현무암, 암석권맨틀Abstract: Geochemical characteristics of the Early Cretaceous igneous rocks from eastern China and the Gyeongsang Basin, Korean Peninsula has been summarized. They have wide range of lithological variation with extrusive picrite-basalt-andesite-trachyte-rhyolite and lamprophyre, and intrusive gabbro-dioritemonzonite-syenite-granite and diabase in eastern China, mostly belonging to the high-K calc-alkaline or shoshonitic series. The volcanic rocks intercalated with the Hayang Group sedimentary assemblages in the Gyeongsang basin are high-K to shoshonitic basaltic trachyandesites. The Early Cretaceous basaltic rocks studied mostly fall within the field of within-plate basalts on the Zr/Y-Zr and Nb-Zr-Y tectonic discrimination diagrams. On a Sr-Nd isotope correlation diagram, basaltic rocks from the North China block (NCB) and the continent-continent collision zone (CZ) between the North and South China blocks plot into the enriched lower right quadrant along the extension of the mantle array. The initial Pb(t) correlation. Meanwhile, the SCB basaltic

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Cretaceous extension of the Ganhang Tectonic Belt, southeastern China: constraints from geochemistry of volcanic rocks

Cited by 27 publications

References 28 publications

Petrography, geochemistry, and tectonics of a rifted fragment of Mainland Asia: evidence from the Lasala Formation, Mindoro Island, Philippines

Petrography, geochemistry, and tectonics of a rifted fragment of Mainland Asia: evidence from the Lasala Formation, Mindoro Island, Philippines

Jurassic sedimentary features and tectonic settings of southeastern China

Petrogenesis of Early Cretaceous Magmatism in Eastern China and the Gyeongsang Basin, Korean Peninsula

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