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Meso-Cenozoic uplift of the Taihang Mountains, North China: evidence from zircon and apatite thermochronology

Published online by Cambridge University Press:  17 December 2019

Lin Wu*
Affiliation:
State Key Laboratory of Lithospheric Evolution, Institution of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, P.R. China Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing, 100029, P.R. China College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
Fei Wang
Affiliation:
State Key Laboratory of Lithospheric Evolution, Institution of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, P.R. China Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing, 100029, P.R. China College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
Jinhui Yang
Affiliation:
State Key Laboratory of Lithospheric Evolution, Institution of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, P.R. China Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing, 100029, P.R. China College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
Yinzhi Wang
Affiliation:
State Key Laboratory of Lithospheric Evolution, Institution of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, P.R. China Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing, 100029, P.R. China
Weibin Zhang
Affiliation:
Institute of Geology, China Earthquake Administration, Beijing, 100029, P.R. China
Liekun Yang
Affiliation:
State Key Laboratory of Lithospheric Evolution, Institution of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, P.R. China Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing, 100029, P.R. China College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
Wenbei Shi
Affiliation:
State Key Laboratory of Lithospheric Evolution, Institution of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, P.R. China Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing, 100029, P.R. China
*
Author for correspondence: Dr Lin Wu, Email: wulin08@mail.iggcas.ac.cn
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Abstract

The Taihangshan Mountain Belt, in the central North China Craton, represents an important crustal and tectonic boundary. To explore the complex tectonic evolution of this area during the Mesozoic–Cenozoic, we gathered zircon and apatite (U–Th)/He thermochronology data along a vertical transect (elevation of 630−1584 m) of the northern part of the Taihang Mountain Belt. From our data, we observed three separate rapid cooling phases that occurred at 100 Ma, 50−40 Ma and 27 Ma. Combined with previously published geochronological ages, we suggest that the uplift of the Taihang Mountain Belt initiated during the Jurassic and experienced multiphase rapid uplift from the Cretaceous to the Cenozoic. The early Cretaceous rapid cooling/uplifting events are widespread in the North China Craton and are caused by the collision between the Okhotomorsk Block and the East Asian continental margin. The Eocene and Oligocene rapid cooling events correspond to the initial rifting and thermal subsidence of the Bohai Bay Basin, indicating a coupling between the creation of basins and mountains.

Information

Type
Original Article
Copyright
© Cambridge University Press 2019
Figure 0

Fig. 1. Regional structural map of the Taihang–Qinling Mountains (modified after SZ Li et al. 2015).

Figure 1

Fig. 2. Geologic map of the Taihang Mountains (modified after SR Li et al. 2013), including the Archaean Wutai, Fuping, and Zanhuang complexes. Abbreviated symbols for the Mesozoic intrusions: DHN – Dahenan pluton; WAZ – Wang’anzhen pluton; SZ – Sunzhuang pluton; CWW – Chiwawu pluton; MP – Mapeng pluton; FS – Fushan pluton; and WA – Wu’an pluton.

Figure 2

Fig. 3. (a) Geologic map of the North Taihang Mountains with (U–Th)/He sampling locations with (b) cross section A-A’. Age data for the Wang’anzhen pluton are from Wang & Li (2008). DHN: Dahenan pluton; and WAZ: Wang’anzhen pluton.

Figure 3

Table 1. (U–Th)/He analytical results for the reference standard zircon and apatite samples

Figure 4

Fig. 4. (U–Th)/He age results for the reference standards (a) Fish Canyon zircon; and (b) Durango apatite.

Figure 5

Fig. 5. (U–Th)/He age results for our zircon (diamonds) and apatite (circles) samples located along the vertical transect. Grey symbols represent single crystal ages where the blank ones have been rejected; pink symbols represent the average ages of several crystals.

Figure 6

Table 2. (U–Th)/He analytical results for samples in the vertical transect in the Dahenan pluton

Figure 7

Table 3. (U–Th)/He analytical results for the Wang’anzhen pluton

Figure 8

Table 4. Age summary of the samples in the Wang’anzhen pluton

Figure 9

Fig. 6. Reconstructed multi-thermochrometer cooling history for the Wang’an pluton (data from Chen et al. (2005); Wang & Li (2008); HD Zhang et al. (2016); and this study).

Figure 10

Fig. 7. Basin–mountain coupling relationship for the Bohai Bay Basin and the surrounding mountains, including the Yanshan (yellow), Jiaodong (red), Qinling–Dabie (green) and Taihang (blue) regions. Rectangles represent rapid cooling phases with long durations, and stars represent rapid cooling phases with short time intervals.