Tectonic evolution of the Tancheng‐Lujiang (Tan‐Lu) fault via Middle Triassic to Early Cenozoic paleomagnetic data

Gilder, Stuart; Leloup, Philippe‐Hervé; Courtillot, Vincent; Chen, Yan; Coe, Robert S.; Zhao, Xianzheng; Xiao, Wenjiao; Halim, Nadir; Cogné, Jean-Pascal; Zhu, Rixiang

doi:10.1029/1999jb900123

Cited by 261 publications

(138 citation statements)

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“…7). These orientations of structures do not agree with the rotated suture line model, supported by paleomagnetic data (Lin and Fuller 1990;Zhang 1997;Gilder et al 1999), and the thrust fault model (Schmid et al 1999;Wang et al 2003) for the TLFZ, in which syn-collisional thrust faults in the TLFZ as well as parallel orogenic foliations and marginal thrust faults around the TLFZ would be expected.…”

Section: Discussion On the Faulting Modelmentioning

confidence: 49%

“…9). The paleomagnetic data from Middle Triassic strata east of the TLFZ (Gilder et al 1999) also indicate obvious anticlockwise rotation of the SCB east of the TLFZ relative to the remaining parts of the SCB and the NCB. The marginal structures north of the DOB do not exhibit obvious dragging phenomena related to the Tan-Lu sinistral faulting (Fig.…”

Section: Discussion On the Faulting Modelmentioning

confidence: 91%

“…Many workers have proposed that the TLFZ was a result of the NCB-SCB collision. Syncollisional models that have been proposed for the TLFZ include the transform fault model (Zhang et al 1984;Hsu et al 1987), the transfer model (Okay and Sengor 1992), the indentation boundary model (Yin and Nie 1993), the rotated suture line model (Lin and Fuller 1990;Zhang 1997;Gilder et al 1999), the tear/detachment fault model (Li 1994;Lin 1995) and thrust model (Schmid et al 1999;Wang et al 2003). However, no evidence such as fault structures and isotopic dating has been given for the syncollisional models.…”

Section: Introductionmentioning

confidence: 96%

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Syn-collisional transform faulting of the Tan-Lu fault zone, East China

Zhu

Liu

Niu

et al. 2007

Int J Earth Sci (Geol Rundsch)

168

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Origin of the continental-scale Tan-Lu fault zone (TLFZ), East China, remains controversial. About 550 km sinistral offset of the Dabie orogenic belt (DOB) and Sulu orogenic belt (SOB) is shown along the NE-NNEstriking TLFZ. Syn-collisional, sinistral ductile shear belts in the TLFZ have been identified. Thirteen phengite bulk separates from the mylonites were dated by the 40 Ar/ 39 Ar method. They gave cooling ages of the 198-181 Ma for the shear belts along the eastern margin of the DOB and 221-210 Ma from the western margin of the SOB. Distribution of the foreland basin deposits suggests that sinistral offset of the DOB and SOB by the TLFZ took place prior to deposition of the Upper Triassic strata. The marginal structures around the DOB and SOB support syn-collisional faulting, and indicate anticlockwise rotation of the DOB during the displacement. The folding and thrust faulting related to crustal subduction, coeval with the TanLu faulting, is older than the foreland basin deposition related to the orogenic exhumation. Several lines of evidence demonstrate that the TLFZ was developed as a syncollisional transform fault during latest Middle to earliest Late Triassic time when the DOB and SOB experienced crustal subduction of the South China Block (SCB). Eastward increase of the crustal subduction rates is believed to be responsible for the sinistral transform faulting.

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Section: Discussion On the Faulting Modelmentioning

confidence: 49%

Section: Discussion On the Faulting Modelmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 96%

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Syn-collisional transform faulting of the Tan-Lu fault zone, East China

Zhu

Liu

Niu

et al. 2007

Int J Earth Sci (Geol Rundsch)

168

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“…Right-and left-lateral displacements in some of these faults, however, are controversial [Jolivet et al, 1994;Gilder et al, 1999;Zhang et al, 2003;Utkin, 2013]. It is not clear whether these faults affected the lithospheric magma sources.…”

Section: Introductionmentioning

confidence: 99%

Major, trace element, and Nd, Sr and Pb isotope studies of Cenozoic basalts in SE China: mantle sources, regional variations, and tectonic significance

et al. 2000

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Introduction. Transtension is a system of stresses that tends to cause oblique extension, i.e. combined extension and strike slip. Syn-volcanic transtensional deformations of the lithosphere may provide two possible scenarios for control of magmatic processes. One scenario assumes ascending sub-lithospheric melts that mark the permeable lithosphere in a transtension area without melting of the lithospheric material; products of volcanic eruptions in such a zone show only the sub-lithospheric mantle material; components of magmatic liquids do not reveal any connection to the lithospheric structure. Another scenario yields a direct control of melting in lithospheric sources in an evolving transtensional structure. In this case, spatial-temporal changes of lithospheric and sub-lithospheric components are a direct indication of the evolving transtensional zone. In this paper, we present arguments in favor of the transtensional origin of the lithosphere-derived melting anomaly along the Wudalianchi volcanic zone, which are based on the study of components in the rocks sampled from the volcanic field of the same name.Analytical methods. Trace elements were determined by ICP-MS using a mass-spectrometer Agilent 7500ce and isotopes using a mass-spectrometer Finnigan MAT 262. The methods used were described in the previous papers by Rasskazov et al. [2011] and Yasnygina et al. [2015]. Major oxides were measured by "wet chemistry".Structural setting of the Wudalianchi zone. This zone extends north-south for 230 km at the northern circuit of the Songliao basin, subsided in the Late Mesozoic -Early Cenozoic (Fig. 1).Timing of volcanism and variations of K2O contents in rocks from the Wudalianchi zone. Rocks, dated back to the Pliocene and Quaternary, show the stepwise increasing K2O content interval along the Wudalianchi zone from the southernmost Erkeshan volcanic field (5.6-5.8 wt %) to the northernmost Xiaogulihe-Menlu volcanic field (2.0-9.5 wt %) (Fig. 2).Spatial-temporal clustering of volcanoes in the Wudalianchi field. In terms of the general Quaternary evolution of volcanism in Asia [Rasskazov et al., 2012], spatial-temporal distribution and compositional variations of volcanic products, we distinguish three time intervals of the volcanic evolution: (1) 2.5-2.0 Ma, (2) 1.3-0.8 Ma, and (3) <0.6 Ma. The Central group of volcanoes showed persistent shifting of eruptions from Wohushan (1.33-0.42 Ma) to to Laoheishan (1720-1721, possibly earlier) to Huoshaoshan (1721) (Figs 3, 4, 5). No spatial-temporal regularity of eruptions in volcanoes of the Erkeshan field and Western and Eastern groups of the Wudalianchi field reflected background activity.Sampling. Representative sampling of rocks from the Wohushan-Huoshaoshan volcanic line was aimed to identify changing geochemical signatures along the whole volcanic line and in the course of eruptions in each volcano (Figs 3, 6, 7). For comparisons, the background volcanoes were also sampled.Silica and alkalis oxides. On the total alkalis-silica (TAS) diagram (Fig. ...

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“…The Tan-Lu Fault is a major but controversial structure in eastern China Mattauer et al, 1991;Yin and Nie, 1993;Zhu et al, 1995;Wang et al, 1996;Gilder et al, 1999 andRatsbacher et al, 2000 andenclosed references). Several tectonic models suggest displacements of several hundreds of kilometers along the fault with timing ranging from the Precambrian to Cenozoic (cf.…”

Section: The Significance Of the Tan-lu Faultmentioning

confidence: 99%

Triassic polyphase deformation in the Feidong-Zhangbaling Massif (eastern China) and its place in the collision between the North China and South China blocks

Lin

Faure

Wang

et al. 2005

Journal of Asian Earth Sciences

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The Feidong-Zhangbaling Massif is located between the Dabieshan and Sulu areas along the Tan-Lu fault in eastern China. Five tectonic-metamorphic events are distinguished there. The earliest deformation (D1) corresponds to a southward compression that occurred during subduction of the South China Block below the North China Block. Top-to-the-south shearing is coeval with Late Permian-Early Triassic blueschist facies metamorphism, and possibly with the development of south-verging recumbent folds in the Neoproterozoic-Paleozoic sedimentary cover of the South China foreland. The main ductile deformation (D2) is an extensional one, characterized by top-to-the-north shearing, coeval with the early stage of exhumation of the high-pressure rocks. A top-to-the-NW ductile shearing, and microfolds overturned to the northwest, belong to a second deformational phase of exhumation (D3) which is distinct from the main event (D2). Previous 40 Ar-39 Ar mica dates ranging between 245 and 212 Ma suggest Late Permian-Early Triassic ages for the D1 to D3 events. The D4 event produced NE-SW trending folds in the sedimentary cover interpreted as gravity collapse structures. A Late Cretaceous brittle extensional event (D5) controls the opening and infill of continental half-grabens. In the study area, the Tan-Lu fault is a Cretaceous brittle normal fault. The lack of ductile deformation presented along the Tan-Lu fault suggests that it did not play a significant role in the exhumation of high-pressure metamorphic rocks.

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Tectonic evolution of the Tancheng‐Lujiang (Tan‐Lu) fault via Middle Triassic to Early Cenozoic paleomagnetic data

Cited by 261 publications

References 75 publications

Syn-collisional transform faulting of the Tan-Lu fault zone, East China

Syn-collisional transform faulting of the Tan-Lu fault zone, East China

Major, trace element, and Nd, Sr and Pb isotope studies of Cenozoic basalts in SE China: mantle sources, regional variations, and tectonic significance

Triassic polyphase deformation in the Feidong-Zhangbaling Massif (eastern China) and its place in the collision between the North China and South China blocks

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