Formation and evolution of the Tancheng-Lujiang wrench fault system: a major shear system to the northwest of the Pacific Ocean

Xu, Jiren; Zhu, Guang; Weixing, Tong; Cui, Kerei; Liu, Qing

doi:10.1016/0040-1951(87)90342-8

Cited by 484 publications

(267 citation statements)

References 18 publications

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“…Previous studies suggested that the total offset along the Tan-Lu fault was more than 550 km (Zhu et al 2005) or even 1000-1500 km (Xu et al 1987) from the Triassic to the present day. We estimate the displacement of the Shandong Peninsula since the Cretaceous at about 100-200 km.…”

Section: Ridge Subduction Along the Lower Yangtze Rivermentioning

confidence: 97%

“…Also plotted are three Cretaceous intrusions (Liguo, Banjing, and Jiagou) in the Xu-Huai region, northern Jiangsu and Anhui Provinces, where eclogitic xenoliths were sampled and analyzed in this study. A series of thrust faults were developed there, forming arc-shaped structures (Xu et al 1987). Squares represent plutonic (intrusive) rocks, while the circles represent volcanic (extrusive) rocks, both of which are shown in different colors in the three adakite belts.…”

Section: Geological Background and Samplesmentioning

confidence: 99%

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Destruction of the North China Craton Induced by Ridge Subductions

Ling

Li²,

Ding

et al. 2013

The Journal of Geology

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A B S T R A C TThe destruction of the North China Craton (NCC) mainly occurred in the Cretaceous and has been attributed to a "top-down" rapid delamination, "bottom-up" long-term thermal/chemical erosions, or hydration by subductionreleased fluids. On the basis of the distribution of one Jurassic and two Early Cretaceous adakite belts and the drifting history of the paleo-Pacific Plate, we propose that three ridge subduction events dominated the large-scale decratonization in the NCC. Both physical erosion and magmatism induced by ridge subduction contributed to the destruction of the NCC; the last ridge subduction, at Ma, was the key driving force in the final destruction. We present 130 ‫ע‬ 5 mineralogical, geochemical, and isotopic data in support of the ridge subduction model: flat subduction of a spreading ridge resulted in stronger physical erosion on the thick lithosphere mantle of the NCC. Consequently, slab melting occurred during ridge subduction, forming adakites with mantle Mg isotope compositions, followed by A-type granites as a result of asthenosphere upwelling. Delaminated lower continental crust was also partially melted after reacting with hydrous magmas, as indicated by eclogite xenoliths, resulting in a zircon age spectrum similar to that of the NCC and some adakitic samples with chemical characteristics similar to those of the Dabie adakites. The final decratonization was triggered by the last ridge subduction, with both physical erosion (flat subduction) and thermal erosion (adakitic and A-type magmatisms). Given that ridge subduction has occurred throughout Earth's history, the associated decratonization processes are presumably a common phenomenon that modified the chemical compositions of the continental crust.

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Section: Ridge Subduction Along the Lower Yangtze Rivermentioning

confidence: 97%

Section: Geological Background and Samplesmentioning

confidence: 99%

Destruction of the North China Craton Induced by Ridge Subductions

Ling

Li²,

Ding

et al. 2013

The Journal of Geology

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“…The orogenic belt is composed of an east-west-trending zone of which the Dabieshan represents the eastern most part, and a northeast-southwest-trending zone (SuLu region), which has been thought to be the eastern extension of Dabieshan but displaced ∼500 km northward by the Tan-Lu Fault ( fig. 1a; Xu et al 1987;Okay and Sengö r 1992;Yin and Nie 1993). Coesite and its quartz pseudomorphs are found as inclusions in garnet, omphacite, kyanite, and epidote from eclogites (!200 mm; Wang et al 1989Wang et al , 1992Yang and Smith 1989;Okay and Sengö r 1993;Zhang et al 1995), marbles Liou 1991, 1993;Xu et al 1992), and very rarely in gneisses (Enami and Zhang 1990;Hirajima et al 1990;Wang and Liou 1991;Liou et al 1997).…”

Section: Geological Setting and Sample Descriptionmentioning

confidence: 99%

Multichronometric Evidence for an In Situ Origin of the Ultrahigh‐Pressure Metamorphic Terrane of Dabieshan, China

Chavagnac

Jahn²,

Villa

et al. 2001

The Journal of Geology

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A B S T R A C TU-Pb zircon data on gneisses indicate a Late Proterozoic protolith at ∼700 Ma at Bixiling and a Late Archean to Early Proterozoic for the Shuanghe sheet within the ultrahigh-pressure metamorphic terrane of Dabieshan (China). U-Pb zircon and Sm-Nd dates on the gneisses of the Shuanghe sheet constrain a metamorphic peak at ∼230 Ma. Rb-Sr and 40 Ar-39 Ar analyses of phengite from five gneisses in the Bixiling Complex yield ages at 198-212 Ma, overlapping the 190-220-Ma age on eclogites. The host gneisses record a similar metamorphic evolution as the coesite-bearing eclogites since both the peak and the retrograde evolution were contemporaneous. This argues for an in situ tectonic relationship.

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“…Widespread Mesozoic accretionary complexes developed associated with subduction of oceanic plates (Seng6r and Natal'in, 1996). The oceanic plate motion activated Mesozoic NE-SW trending sinistral fault system (Xu et al, 1987). Westward suturing of microcontinents occurred in Mesozoic and Cenozoic times (Faure and Natal'in, 1995).…”

Section: Introductionmentioning

confidence: 99%