Sinistral displacement along the Tan-Lu Fault during the Cretaceous induced by Paleo-Pacific subduction: Constraints from new paleomagnetic and U-Pb geochronological data
文献类型:期刊论文
作者 | Qin, Huafeng4; Hao, Wenxing4; Deng, Chenglong2,4; Zhao, Pan4; Shen, Zhongshan2,4; Han, Fei1,4; He, Huaiyu4; Pan, Yongxin2,3; Zhu, Rixiang2,4 |
刊名 | JOURNAL OF ASIAN EARTH SCIENCES
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出版日期 | 2022-10-01 |
卷号 | 237页码:16 |
关键词 | Paleomagnetism Tan-Lu Fault Strike-slip Early Cretaceous Volcanic rocks Zircon U-Pb geochronology |
ISSN号 | 1367-9120 |
DOI | 10.1016/j.jseaes.2022.105362 |
英文摘要 | The Jiaodong Peninsula in eastern China is separated from the main mass of the North China Craton by the Tancheng-Lujiang (Tan-Lu) Fault, the largest fault system in eastern Asia. Although accumulating lines of evidence have suggested that the Tan-Lu Fault underwent strike-slip movement in the Mesozoic, there is still debate about the timing and magnitude of the displacement. To decipher this problem, we conducted paleomagnetic and U-Pb geochronological studies of the Lower Cretaceous volcanic rocks of the Qingshan Group on the Jiaodong Peninsula, to the east of the Tan-Lu Fault on the southeastern edge of the North China Craton. LA-ICP-MS U-Pb dating of zircons from five samples yielded consistent ages of ca. 120 Ma. Stepwise thermal demagnetization conducted on 308 samples (40 sites) from two sections revealed stable characteristic remanent magnetization directions. After paleomagnetic tests and rejecting inappropriate data, the mean direction from 288 samples (31 independent units) is 200.3 degrees/-51.4 degrees (alpha 95 = 4.1 degrees), with a corresponding pole at 215.1 degrees /73.0 degrees (A95 = 4.8 degrees). The paleolatitude calculated for the Jiaodong Peninsula is lower than that of the main block of the North China Craton, which indicates that latitudinal offset occurred between these two parts, and this offset can be ascribed to strike-slip movement along the Tan-Lu Fault. Our data provide new constraints on regional tectonic movement and Paleo-Pacific subduction processes during the late Mesozoic. |
WOS关键词 | GEOMAGNETIC SECULAR VARIATION ; POLAR WANDER PATH ; FOLD TEST ; PLATE REORGANIZATION ; TECTONIC EVOLUTION ; EASTERN CHINA ; SOUTH CHINA ; NE CHINA ; OKHOTOMORSK BLOCK ; SHANDONG PROVINCE |
WOS研究方向 | Geology |
语种 | 英语 |
WOS记录号 | WOS:000843985900001 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/108423] ![]() |
专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
通讯作者 | Qin, Huafeng |
作者单位 | 1.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
推荐引用方式 GB/T 7714 | Qin, Huafeng,Hao, Wenxing,Deng, Chenglong,et al. Sinistral displacement along the Tan-Lu Fault during the Cretaceous induced by Paleo-Pacific subduction: Constraints from new paleomagnetic and U-Pb geochronological data[J]. JOURNAL OF ASIAN EARTH SCIENCES,2022,237:16. |
APA | Qin, Huafeng.,Hao, Wenxing.,Deng, Chenglong.,Zhao, Pan.,Shen, Zhongshan.,...&Zhu, Rixiang.(2022).Sinistral displacement along the Tan-Lu Fault during the Cretaceous induced by Paleo-Pacific subduction: Constraints from new paleomagnetic and U-Pb geochronological data.JOURNAL OF ASIAN EARTH SCIENCES,237,16. |
MLA | Qin, Huafeng,et al."Sinistral displacement along the Tan-Lu Fault during the Cretaceous induced by Paleo-Pacific subduction: Constraints from new paleomagnetic and U-Pb geochronological data".JOURNAL OF ASIAN EARTH SCIENCES 237(2022):16. |
入库方式: OAI收割
来源:地质与地球物理研究所
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