Early Carboniferous paleomagnetic results from the northeastern margin of the Qinghai–Tibetan plateau and their implications

Bin Wang; Guowei Zhang; Sanzhong Li; Zhenyu Yang; Andrew P. Roberts; Qian Zhao; Zhiyao Wang

doi:10.1016/j.gr.2016.04.007

Early Carboniferous paleomagnetic results from the northeastern margin of the Qinghai–Tibetan plateau and their implications

Bin Wang^*, Guowei Zhang, Sanzhong Li, Zhenyu Yang, Andrew P. Roberts, Qian Zhao, Zhiyao Wang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

We conducted paleomagnetic investigations on limestone from the Lower Carboniferous Huaitoutala Formation in the Qaidam Basin near Delingha City, Qinghai Province, China. The characteristic remanent magnetization (D = 5.8°, I = − 25.7°, k = 114.3, α₉₅ = 4.8°) passes a fold test and indicates a paleopole position of − 39.2°N, 90.4°E and a paleolatitude of 13.5°N for the Qaidam Block for the early Carboniferous. Based on global tectonic reconstructions and paleontological evidence, we suggest that the Qaidam Block was adjacent to, but independent from, the North China, South China, Alashan–Hexi and Tarim blocks at this time. This result suggests that Pre-Carboniferous sutures reported around the Qaidam Basin represent collisional events within Gondwana, rather than the final sutures that gave rise to the present tectonic configuration.

Original language	English
Pages (from-to)	57-64
Number of pages	8
Journal	Gondwana Research
Volume	36
DOIs	https://doi.org/10.1016/j.gr.2016.04.007
Publication status	Published - 1 Aug 2016

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title = "Early Carboniferous paleomagnetic results from the northeastern margin of the Qinghai–Tibetan plateau and their implications",

abstract = "We conducted paleomagnetic investigations on limestone from the Lower Carboniferous Huaitoutala Formation in the Qaidam Basin near Delingha City, Qinghai Province, China. The characteristic remanent magnetization (D = 5.8°, I = − 25.7°, k = 114.3, α95 = 4.8°) passes a fold test and indicates a paleopole position of − 39.2°N, 90.4°E and a paleolatitude of 13.5°N for the Qaidam Block for the early Carboniferous. Based on global tectonic reconstructions and paleontological evidence, we suggest that the Qaidam Block was adjacent to, but independent from, the North China, South China, Alashan–Hexi and Tarim blocks at this time. This result suggests that Pre-Carboniferous sutures reported around the Qaidam Basin represent collisional events within Gondwana, rather than the final sutures that gave rise to the present tectonic configuration.",

keywords = "Carboniferous, Paleomagnetism, Qaidam, Tectonic reconstruction",

author = "Bin Wang and Guowei Zhang and Sanzhong Li and Zhenyu Yang and Roberts, {Andrew P.} and Qian Zhao and Zhiyao Wang",

note = "Publisher Copyright: {\textcopyright} 2016 International Association for Gondwana Research",

year = "2016",

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doi = "10.1016/j.gr.2016.04.007",

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T1 - Early Carboniferous paleomagnetic results from the northeastern margin of the Qinghai–Tibetan plateau and their implications

AU - Wang, Bin

AU - Zhang, Guowei

AU - Li, Sanzhong

AU - Yang, Zhenyu

AU - Roberts, Andrew P.

AU - Zhao, Qian

AU - Wang, Zhiyao

PY - 2016/8/1

Y1 - 2016/8/1

N2 - We conducted paleomagnetic investigations on limestone from the Lower Carboniferous Huaitoutala Formation in the Qaidam Basin near Delingha City, Qinghai Province, China. The characteristic remanent magnetization (D = 5.8°, I = − 25.7°, k = 114.3, α95 = 4.8°) passes a fold test and indicates a paleopole position of − 39.2°N, 90.4°E and a paleolatitude of 13.5°N for the Qaidam Block for the early Carboniferous. Based on global tectonic reconstructions and paleontological evidence, we suggest that the Qaidam Block was adjacent to, but independent from, the North China, South China, Alashan–Hexi and Tarim blocks at this time. This result suggests that Pre-Carboniferous sutures reported around the Qaidam Basin represent collisional events within Gondwana, rather than the final sutures that gave rise to the present tectonic configuration.

AB - We conducted paleomagnetic investigations on limestone from the Lower Carboniferous Huaitoutala Formation in the Qaidam Basin near Delingha City, Qinghai Province, China. The characteristic remanent magnetization (D = 5.8°, I = − 25.7°, k = 114.3, α95 = 4.8°) passes a fold test and indicates a paleopole position of − 39.2°N, 90.4°E and a paleolatitude of 13.5°N for the Qaidam Block for the early Carboniferous. Based on global tectonic reconstructions and paleontological evidence, we suggest that the Qaidam Block was adjacent to, but independent from, the North China, South China, Alashan–Hexi and Tarim blocks at this time. This result suggests that Pre-Carboniferous sutures reported around the Qaidam Basin represent collisional events within Gondwana, rather than the final sutures that gave rise to the present tectonic configuration.

KW - Carboniferous

KW - Paleomagnetism

KW - Qaidam

KW - Tectonic reconstruction

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DO - 10.1016/j.gr.2016.04.007

M3 - Article

SN - 1342-937X

VL - 36

SP - 57

EP - 64

JO - Gondwana Research

JF - Gondwana Research

ER -

Early Carboniferous paleomagnetic results from the northeastern margin of the Qinghai–Tibetan plateau and their implications

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