Multistage evolution of continental collision orogen: A case study for western Dabie orogen

Wu, Yuan–Bao

doi:10.1007/s11434-009-0410-1

Cited by 21 publications

(7 citation statements)

References 101 publications

(303 reference statements)

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“…The Qinling-Tongbai-Dabie orogenic belt marks the suture zone between the North China Block and Yangtze Block in central China, forming one of the most important collisional orogens in eastern Asia Wu, 2009;Wu et al, 2009b;Zheng et al, 2003). The Dabie-Sulu orogenic belt is characterized by the occurrence of HP to UHP eclogite-facies metamorphic rocks generated during deep subduction of the Yangtze Block (Cong, 1996;Li et al, 2000;Liou et al, 1996;Zheng, 2008;Zheng et al, 2005).…”

Section: Geological Setting and Samplesmentioning

confidence: 99%

“…The Qinling-Dabie-Sulu belt is a typical multi-stage continental collision orogen that resulted from subduction of the Yangtze Block beneath the North China Block Wu, 2009;Wu et al, 2009b;Zheng et al, 2003). It has been documented that the Qinling-Tongbai orogen has experienced a series of Paleozoic arccontinent collisions before the final amalgamation of the Yangtze and North China blocks Wang et al, 2011a,b;Wu, 2009;Wu et al, 2009b), whereas the Dabie-Sulu orogen mostly records a single Triassic continent-continent collision event (Hacker et al, 1998Jahn et al, 2003;Li et al, 1993Li et al, , 2000Liu and Liou, 2011;Liu et al, 2004;F.L.…”

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confidence: 99%

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U–Pb ages and trace elements of detrital zircons from Early Cretaceous sedimentary rocks in the Jiaolai Basin, north margin of the Sulu UHP terrane: Provenances and tectonic implications

Xie

Zhang

et al. 2012

Lithos

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Section: Geological Setting and Samplesmentioning

confidence: 99%

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confidence: 99%

U–Pb ages and trace elements of detrital zircons from Early Cretaceous sedimentary rocks in the Jiaolai Basin, north margin of the Sulu UHP terrane: Provenances and tectonic implications

Xie

Zhang

et al. 2012

Lithos

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“…Either compression or extension was isochronous but limited to crustal levels. Penecontemporaneous compression and extension across the orogen may reflect long-term (>100 Ma) shortening [78] and continental crustal thrusting and thickening leading to gravitational spreading and isostatic rebound of the resultant thick crustal welt, and exhumation of the HP/UHP rocks. The development of these basin/mountain systems was the Earth's surface response to lateral accretion of the orogen, vertical thickening of the continental crust, uplift and exhumation of the basement, and deep mantle tectonic process during continental collision orogeny.…”

Section: Analysis Of Geodynamicsmentioning

confidence: 99%

Mesozoic basin development and its indication of collisional orogeny in the Dabie orogen

Liu

Zhang

2012

Chin. Sci. Bull.

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The Dabie orogen underwent deep continental subduction, rapid exhumation, and the huge amount of erosion during the Mesozoic. Its tectonic evolution, especially how its evolution was recorded by sedimentary basins at the flanks of the Dabie orogen is one of the most important issues of the world's attention. These years, newly studies of basin sedimentology, combined with structural geology, have shown a fundamental progress. The overall distribution of different basin types in the orogen indicates that shortening and thrusting at the margins of the orogen from the Late Triassic to the Early Cretaceous controlled the foreland basins, and extension, doming and rifting were initiated in the core of the orogen from the Jurassic to the Early Cretaceous and were expanded to the whole orogen after the Late Cretaceous. Therefore, The Dabie orogen records gradual transition from overall shortening and thrusting to dominantly extension and rift basin formation expanded from its core to its margins, although these shortening and extension overlapped in time from the Jurassic through Early Cretaceous at crustal levels. The unroofing ages of the ultra-high pressure (UHP) metamorphic rocks in the Dabie orogen change from Early Jurassic to Late Jurassic westward. The depth of exhumation increases eastwards. The sediment sources for the Hefei basin are mostly composed of the deeply exhumed, axial Dabie metamorphic complex, and the sediment sources for the Middle Yangtze basin are mostly from cover strata in the southern orogen and related strata with subjacent (i.e. subsequently overthrusted) Mianlue suture belt. Geodynamic analysis represents that continental collision between the North China Block and the South China Block along the Shangdan and Mianlue sutures, subsequently northwestward progradation of the Jiangnan fold and thrust belt, and the underthrusting of the North China Block along the Northern Boundary Fault of Qinling Range led to crustal thickening, gravitational spreading and balanced rebound of the resultant thick crustal welt, and multi-episodic exhumation of the HP/UHP metamorphic rocks. The future studies by the methods of tracing the Dabie orogeny through deposition in the marginal basins should focus on eastward extension of the Mianlue suture, thrust and overlap of the Dabie HP/UHP metamorphic block on different lithotectonic zones and basins along the northern South China Block, the structural framework of the source area of the basins in the syn-depositional stage, the basin lateral extension, huge amount of erosion and sediment transportation from the Dabie blanket and basement rocks, and recovery of subducted and removed structural units within the Dabie orogen, etc.Dabie orogen, sedimentary basin, evolution of basin/mountain system, HP/UHP metamorphic rocks, provenance analysis, exhumation process, depositional paleogeography

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“…The western Dabie orogen can be subdivided into six metamorphic zones (from N to S): Nanwan flysch zone, Balifan tectonic melange zone, Huwan high-pressure metamorphic zone, Xinxian ultrahigh-pressure metamorphic zone, Hong'an high-pressure metamorphic zone, and Mulanshan blueschist-greenschist zone (e.g. Liu et al 2004;Lu et al 2006;Wu 2009). The Dayinjian intrusion occurs at the junction of the Huwan high-pressure metamorphic zone that comprises the Huwan formation in the north, and the Downloaded by [Fondren Library, Rice University ] at 20:16 18 November 2014…”

Section: Geologymentioning

confidence: 99%

Constraints on timing and origin of the Dayinjian intrusion and associated molybdenum mineralization, western Dabie orogen, central China

Zhao

et al. 2012

International Geology Review

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The Early Cretaceous geology of the western Dabie Mountains is characterized by widespread granitoid pluton emplacement and associated Mo mineralization. We report LA-ICP-MS zircon U-Pb and molybdenite Re-Os dating, whole-rock chemical and Sr-Nd-Pb isotopic compositions, as well as in situ zircon Hf isotopic geochemistry, for the Dayinjian granite in the region to better constrain its petrogenesis. U-Pb zircon dating yielded a weighted average age of 124.9 ± 1.3 Ma (mean square weighted deviation (MSWD) = 0.51, 2σ ). Re-Os isotopic dating of molybdenite from the Dayinjian ore deposit yielded an isochron age of 125.07 ± 0.87 Ma (MSWD = 0.015), and a weighted average age of 124.54 ± 0.67 Ma (MSWD = 0.34). The petrogenesis and metallogenesis of the Dayinjian complex are related to the onset of widespread post-orogenic magmatism and local mineralization in the western Dabie orogen. Whole-rock geochemistry indicates that the Dayinjian granite is a highly fractionated calc-alkaline granite possessing relatively high ( 87 Sr/ 86 Sr) i ratios (0.706379-0.707173), low ε Nd (T) values (-15.62 to -15.17), high Nd model ages (T 2 DM = 2.15-2.18 Ga), and low radiogenic Pb isotopes (( 206 Pb/ 204 Pb) i = 16.793-16.979, ( 207 Pb/ 204 Pb) i = 15. and ( 208 Pb/ 204 Pb) i = 37.559-37.976). Its magmatic zircons also exhibit very low ε Hf (T) values (-24.80 to -17.80) and old Hf model ages (T C DM = 2.31-2.75 Ga). These isotopic compositions suggest that the Dayinjian granite is probably of anatectic origin and was derived from the lower crust at a depth <35 km, similar to the western Dabie gneiss. Ore-bearing fluids were produced during late-stage magmatic hydrothermal activity and were thereafter influenced by the circulation of meteoric water that concentrated molybdenite in open-space areas.

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Multistage evolution of continental collision orogen: A case study for western Dabie orogen

Cited by 21 publications

References 101 publications

U–Pb ages and trace elements of detrital zircons from Early Cretaceous sedimentary rocks in the Jiaolai Basin, north margin of the Sulu UHP terrane: Provenances and tectonic implications

U–Pb ages and trace elements of detrital zircons from Early Cretaceous sedimentary rocks in the Jiaolai Basin, north margin of the Sulu UHP terrane: Provenances and tectonic implications

Mesozoic basin development and its indication of collisional orogeny in the Dabie orogen

Constraints on timing and origin of the Dayinjian intrusion and associated molybdenum mineralization, western Dabie orogen, central China

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