Eclogites preserved as pebbles in Jurassic conglomerate, Dabie Mountains, China

Wang, Qingchen; Li, Renwei; Wang, Daoxuan; Li, Shuangying

doi:10.1016/s0024-4937(03)00105-1

Cited by 20 publications

(7 citation statements)

References 22 publications

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“…Studies on the sedimentary evolution and detrital provenance record of the foreland basins have concentrated on the northern Hefei Basin and have suggested that detritus was mainly sourced from the Dabie Mountains [ R. W. Li et al , 1999; Li et al , 2000; R. W. Li et al , 2003; Li et al , 2005; S. Y. Li et al , 2004; Li et al , 2001a, 2001b; Z. Li et al , 1999; Liu et al , 2001; Wan et al , 2005; Wang et al , 2003; Meng et al , 2007]. In contrast, limited studies on Jurassic sandstones from the southern Huangshi‐Yueshan Basin suggest input from a recycled orogenic source, probably the South China Craton as well as the Dabie Mountains [ Grimmer et al , 2003; Z. Li et al , 2003; Li et al , 2006].…”

Section: Introductionmentioning

confidence: 99%

Detrital record of mountain building: Provenance of Jurassic foreland basin to the Dabie Mountains

Yang¹,

Cawood²,

Du³

2010

Tectonics

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The Huangshi foreland basin developed on the southern margin of the Dabie Mountains as a result of tectonic loading during Triassic collisional suturing between the North China and South China cratons. Modal and detrital zircon data for Jurassic samples within the basin suggest a multicomponent source with input from both the South China Craton and Dabie Orogen. Samples are predominantly quartz arenites derived, on the basis of framework compositions, from a recycled orogen source. Detrital zircons range in age from Archean to Triassic with a dominant component in the late Paleoproterozoic between 1.9–1.7 Ga and subsidiary components at 2.6–2.2 Ga, 0.8–0.7 Ga, 0.5–0.4 Ga, and 0.33–0.2 Ga. Age data integrated with cathodoluminescence and trace element data for the zircons indicate that the Archean and Proterozoic detritus was derived from igneous and metamorphic sources that overlap with time‐equivalent pulses of such activity within the South China Craton. Phanerozoic zircon ages overlap the times of the Ordovician, Carboniferous and Triassic high‐pressure metamorphism in the Dabie Mountains. The provenance record, integrated with paleocurrent and regional relations, enables a paleogeographic reconstruction in which the Huangshi Basin was fed by a major axial flowing trunk river system carrying detritus from eastern and southern sources within the South China Craton and was also fed by short south flowing tributaries supplying some detritus from the evolving Dabie Orogen. The dominance of cratonic‐derived detritus within the provenance record of the Huangshi Basin contrasts with that of the Hefei foreland basin that lies to the north of the Dabie Mountains, which is dominated by Neoproterozoic ‐ Mesozoic detritus derived directly from the Dabie Mountains and lacks any significant older Paleoproterozoic or Archean components. Easterly extensions of the Dabie‐Sulu collisional suture and of the resultant Huangshi Basin occur in Korea and Japan over an along strike length of some 2000 km.

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Section: Introductionmentioning

confidence: 99%

Detrital record of mountain building: Provenance of Jurassic foreland basin to the Dabie Mountains

Yang¹,

Cawood²,

Du³

2010

Tectonics

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“…Kim et al , 2006, 2008). Subsequent rapid uplift and denudation transported detritus from the basement rocks metamorphosed during Triassic time into the Jurassic Chungnam Basin (Jeon et al , 2007), similar to coeval basin fills bearing eclogite pebbles derived from the Dabie collision belt in China (Wang et al , 2003; Li et al , 2005). After that, a large‐scale structural and magmatic disturbance took place during the Jurassic Daebo orogeny, which was related to subduction of the western paleo‐Pacific plate (e.g.…”

Section: Introductionmentioning

confidence: 99%

Jurassic synorogenic basin filling in western Korea: sedimentary response to inception of the western Circum‐Pacific orogeny

Egawa

Lee

2009

Basin Research

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This is the first sedimentologic and stratigraphic attempt to demonstrate Jurassic subduction‐induced basin‐filling processes in the early stage of the western Circum‐Pacific orogeny. The Chungnam Basin in western Korea was filled with a Lower to Middle Jurassic nonmarine succession, the Nampo Group, whose deposition postdated the Triassic final assembly of Chinese continental blocks. The Nampo Group consists of two repeated, fining‐ to coarsening‐upward alluvio‐lacustrine sequences, separated by an interval of thick breccia–gravel progradation deposits and its related strong proximal unconformities. No temporal variation in the degree of chemical weathering, along with the predominance of coals and a tropic to subtropic paleoflora, reveals little or no climate fluctuations during deposition of the Nampo Group. The observed relationships provide a record of sedimentation most likely controlled by temporal variations of tectonically driven sediment flux. Such syntectonic sedimentation of the Chungnam Basin occurred at a convergent margin of continental‐arc setting during the Daebo orogeny, synchronous with the early subduction of the western paleo‐Pacific ocean that resulted in formation of an accretionary complex along the East Asian continental margin during Jurassic time. Hence, synorogenic deposition in the Chungnam Basin is interpreted as sedimentary response to subduction–accretion of the western paleo‐Pacific plate.

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“…1), and concluded that the Triassic UHP metamorphic rocks of the Dabie Orogen were exhumed to the surface in the late Jurassic. Wang Q. C. et al (2003) distinguished two types of eclogite pebbles in the Hefei Basin: one that had undergone high pressure (HP) metamorphism and another that had undergone UHP metamorphism. Li R. W. et al ( , 2003 reported that detrital phengite with 40 Ar-39 Ar ages of 216.6 and 217.4 Ma is widely distributed in sedimentary Fig.…”

Section: Introductionmentioning

confidence: 99%

“…Arrows show paleocurrent directions. Inset shows main geologic blocks in China relevant to this study (modified from Wang Q. C. et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

UHP metamorphism and exhumation of the Dabie Orogen, China: Evidence from SHRIMP dating of zircon and monazite from a UHP granitic gneiss cobble from the Hefei Basin

Wan

Wilde

et al. 2005

Geochimica et Cosmochimica Acta

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173

117

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Eclogites preserved as pebbles in Jurassic conglomerate, Dabie Mountains, China

Cited by 20 publications

References 22 publications

Detrital record of mountain building: Provenance of Jurassic foreland basin to the Dabie Mountains

Detrital record of mountain building: Provenance of Jurassic foreland basin to the Dabie Mountains

Jurassic synorogenic basin filling in western Korea: sedimentary response to inception of the western Circum‐Pacific orogeny

UHP metamorphism and exhumation of the Dabie Orogen, China: Evidence from SHRIMP dating of zircon and monazite from a UHP granitic gneiss cobble from the Hefei Basin

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