Paleomagnetic data from the Late Carboniferous-Late Permian rocks in eastern Tibet and their implications for tectonic evolution of the northern Qiangtang-Qamdo block

Cheng, Xin; Wu, Hanning; Diao, ZongBao; Wang, Haijun; Ma, Lun; Zhang, Xiaodong; Yang, Gang; Hong, JingJing; Ji, Wenhua; Li, Rongshe; Shou-jian, Chen; Zhao, Zhidan

doi:10.1007/s11430-012-4558-1

Cited by 34 publications

(28 citation statements)

References 15 publications

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“…The Nayixiong Fm paleomagnetic data of our new results are from 28 volcanic sites without inclination shallowing and fulfill the quality criteria of Van der Voo (), Deenen et al (), and Johnson et al (). In addition, previous studies on the Nayixiong Fm volcanic rocks obtained the Fisher () mean direction of five sites at Ds = 250.1°, Is = 14.9°, ks = 37.3, and α 95 = 12.7° after tilt correction (Cheng et al, ). The inclination (corresponding to paleolatitude) is nearly equal to that calculated from the 28 sites in our new data.…”

Section: Discussionmentioning

confidence: 94%

“…Previous paleomagnetic investigations of Late Permian rocks of the NQT have been performed in the Raggyorcaka area by Cheng et al (), in the Tuotuohe area by Cheng et al (), and in the Tuoba area by Huang et al (). Cheng et al () and Cheng et al () reported two paleopoles from five sedimentary sites and five volcanic sites, respectively, and concluded that the NQT was located at different paleolatitudes of approximately 13.1 and −7.7°N in the Late Permian (Table S4). Other Late Permian paleomagnetic results of 10 sedimentary sites reported by Huang et al () positioned the NQT at ~4.8°N (Table S4).…”

Section: Discussionmentioning

confidence: 99%

“…These results suggest that our new data set has averaged out paleosecular variation and thus can be used for tectonic reconstruction. Cheng et al (2012), in the Tuotuohe area by Cheng et al (2013), and in the Tuoba area by Huang et al (1992). Cheng et al (2012) and Cheng et al (2013) reported two paleopoles from five sedimentary sites and five volcanic sites, respectively, and concluded that the NQT was located at different paleolatitudes of approximately 13.1 and −7.7°N in the Late Permian (Table S4).…”

Section: Paleosecular Variationmentioning

confidence: 99%

“…All the paleomagnetic results contain no more than 10 site directions in each study. The secular variation of paleomagnetic field cannot be fully averaged out by only five volcanic sites (Cheng et al, 2013). Besides, the possible inclination shallowing have not been tested and corrected for sedimentary data by Cheng et al (2012) and Huang et al (1992).…”

Section: Paleosecular Variationmentioning

confidence: 99%

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Paleomagnetic Constraints on the Origin and Drift History of the North Qiangtang Terrane in the Late Paleozoic

Wang

et al. 2019

Geophysical Research Letters

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To better constrain the origin and drift history of the North Qiangtang terrane (NQT), we report a well‐dated paleomagnetic pole from the Late Permian volcanics of the NQT that appears to average out secular variation. Our new results yield a paleolatitude of −7.6 ± 5.6°N at ~259 Ma for our sampling area, which confirms the NQT drifted northward during the Permian and Triassic periods. The equatorial paleolatitude of the NQT is similar to that of the coeval South China block, demonstrating that they were in close proximity. Combined with palaeontological and magmatic evidence, paleomagnetic constraints on the drift of the NQT in the Permian indicate that the NQT moved northward together with the South China block at this time. The paleolatitude evolution of the NQT implies that the NQT rifted from the northern margin of the Gondwana in the Devonian, which is earlier than the departure time of the South Qiangtang terrane.

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Section: Discussionmentioning

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Paleosecular Variationmentioning

confidence: 99%

Section: Paleosecular Variationmentioning

confidence: 99%

See 2 more Smart Citations

Paleomagnetic Constraints on the Origin and Drift History of the North Qiangtang Terrane in the Late Paleozoic

Wang

et al. 2019

Geophysical Research Letters

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“…Abbreviation: SQT (South Qiangtang), NQT (North Qiangtang), TC (Tengchong), WB (West Burma), IBR (Indo-Burma Range), EKL-ANMQS (East Kunlun-A'nyemaqen Suture), JSJS (Jinshajiang Suture), LSS (Longmu Co-Shuanghu Suture), BNS (Bangong Co-Nujiang Suture), ITS (Indus-Tsangbu Suture), MFT (Main Frontal Thrust), XSH-XJ F. (Xiaoshuihe-Xiaojiang Fault), ALS-RR F. (Ailaoshan-Red River Fault), DBPF (Dien Bien Phu Fault), GLG F. (Gaoligong Fault), MJ (Mojiang), CN (Changning), ML (Menglian), CL (Chianglai), and CM (Chiangmai). References of paleomagnetic studies: A2013 (Ali et al, 2013), C2012 (Cheng et al, 2012), C2013 (Cheng et al, 2013), C2016 (Chi et al, 2016), HO1991 (Huang & Opdyke, 1991), H1992 (Huang et al, 1992), HO2016 (Huang & Opdyke, 2016), M2019 (Ma et al, 2019), S2012 (Song et al, 2012), S2015 (Song et al, 2015), S2017 (Song et al, 2017), X2014 (Xu et al, 2014), YB1993 (Yang & Besse, 1993), Y2017 (Yan et al, 2017), Y2018 (Yan et al, 2018), Z2015 , and Z2019 . (b) Geological map and sampling locations in the south Lancangjiang volcanic belt.…”

Section: Geologic Setting and Samplingmentioning

confidence: 99%

Direct Paleomagnetic Constraint on the Closure of Paleo‐Tethys and Its Implications for Linking the Tibetan and Southeast Asian Blocks

Yan

Qi-guo

Zhang

et al. 2019

Geophysical Research Letters

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Paleomagnetic studies on the syncollisional magmatic eruptions provide a direct way to understand when and where the Paleo-Tethys closed. We report a well-dated paleomagnetic pole from the southern Lancangjiang volcanic belt in western Yunnan of China. Stable Characteristic Remanent Magnetizations (ChRMs) were isolated from 21 sites at high temperatures following step-wise thermal demagnetization. The data pass fold, reversal, and conglomerate tests and are interpreted to be primary thermal remanent magnetizations. The new paleomagnetic pole (46.1°N/176.2°E, K=44.9, A 95 =4.8°, N=21) yields a paleolatitude of 26.0 ± 4.8°N at the reference site (23.

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Collisional processes between the Qiangtang Block and the Lhasa Block: Insights from structural analysis of the Bangong–Nujiang Suture Zone, central Tibet

Guo

et al. 2019

Geological Journal

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The Bangong–Nujiang Suture Zone (BNSZ) is one of the main suture zones in the Tibetan Plateau and indicates the existence of the Bangong–Nujiang Neo‐Tethys Ocean (BNO). It was formed by the collision between the Qiangtang and Lhasa blocks after the closure of the BNO. However, its evolutionary processes and subduction polarity remain controversial. Research on the BNSZ is of great significance for exploring plate tectonic evolution and ocean–continent connection. The scarcity of the BNSZ structural data is one of the most important reasons for the debate of the BNO tectonic evolution. Based on structural analysis in the field and combined with previous petrology and palaeomagnetic data, this paper has determined that the closure time of the BNO is progressive and scissor‐like, from Middle Jurassic in the east to Early Cretaceous in the middle and late Early Cretaceous to early Late Cretaceous in the west. There was a three‐stage deformation in the BNSZ: (a) N–S‐directed compression induced by the initial collision; (b) WNW–directed transpression related to the stress adjustment; and (c) NE–SW‐directed compression caused by the low‐angle NE‐directed subduction of the Indus–Yarlung Zangbo Ocean. The different structural pattern along the eastern segment of the BNSZ may have resulted from orogenic bending due to the later Himalayan Orocline caused by the India–Eurasia collision in the Cenozoic.

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Paleomagnetic data from the Late Carboniferous-Late Permian rocks in eastern Tibet and their implications for tectonic evolution of the northern Qiangtang-Qamdo block

Cited by 34 publications

References 15 publications

Paleomagnetic Constraints on the Origin and Drift History of the North Qiangtang Terrane in the Late Paleozoic

Paleomagnetic Constraints on the Origin and Drift History of the North Qiangtang Terrane in the Late Paleozoic

Direct Paleomagnetic Constraint on the Closure of Paleo‐Tethys and Its Implications for Linking the Tibetan and Southeast Asian Blocks

Collisional processes between the Qiangtang Block and the Lhasa Block: Insights from structural analysis of the Bangong–Nujiang Suture Zone, central Tibet

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