Late Cenozoic paleostress reconstruction and stress regimes in Taiyuan basin of the Shanxi rift, North China

Assie, Konan Roger; Wang, Yu; Ma, Huimin; Kouamelan, Kouamelan Serge; Brantson, Eric Thompson; dri, Koffi Alexis N’; Mondah, Ohouo Rebecca

doi:10.1007/s00531-020-01952-3

Cited by 3 publications

(1 citation statement)

References 56 publications

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“…Similar NNW-SSE extension, but not transtension, has been defined in the northernmost Shanxi along the Huailai and Yanqing basins (Pavlides et al 1999). Other studies on fault kinematic analysis in adjacent areas reported a transpressional deformation as the youngest regional tectonic regime (Shi et al 2019;Assie et al 2020).…”

Section: Yinchuan Grabensupporting

confidence: 65%

Late Cenozoic faulting deformation of the Fanshi Basin (northern Shanxi rift, China), inferred from palaeostress analysis of mesoscale fault-slip data

et al. 2022

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The Fanshi Basin is one of the NE–SW-striking depocentres formed along the northern segment of the fault-bounded Shanxi rift. In order to understand the crustal driving stresses that led to the basin formation and development, a palaeostress analysis of a large quantity of fault-slip data collected mainly at the boundaries of the basin was accomplished. The stress inversion of these data revealed three stress regimes. The oldest SR1 was a Neogene stress regime giving rise to a strike-slip deformation with NE–SW contraction and NW–SE extension. SR1 activated the large faults trending NNE–NE, i.e. (sub)parallel to the main strike of the Shanxi rift, as right-lateral strike-slip faults. It was subjected to the Shanxi rift before the activation of the Fanshi Basin boundary fault, i.e. the Fanshi (or Wutai) fault, as a normal fault. The next is a short-lived NE–SW extensional stress regime SR2 in early Pleistocene time, which shows the inception of the basin’s extension. A strong NW–SE to NNW–SSE extensional stress regime SR3 has governed the northern segment of the Shanxi rift since late Pleistocene time and is the present-day extension. It gave rise to the current half-graben geometry of the Fanshi Basin by activating the Fanshi (or Wutai) fault as a normal fault in the southern part of the graben. Because of the dominance of the NW–SE to NNW–SSE extension, which is perpendicular to the NE–SW extension, mutual permutations between σ3 and σ2 due to inherited fault patterns might have occurred while the crustal stresses in the Fanshi Basin changed from the SR1 to SR3 stress regimes.

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Section: Yinchuan Grabensupporting

confidence: 65%

Late Cenozoic faulting deformation of the Fanshi Basin (northern Shanxi rift, China), inferred from palaeostress analysis of mesoscale fault-slip data

et al. 2022

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Perspective from other rifts in the world

Macheyeki,

Kafumu

2024

The East African Rift System

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Provenance Analysis of the Cenozoic Sedimentary Successions in the Ningnan Basin, NE Tibetan Plateau: Constraints on Sedimentological and Tectonomorphological Evolution

ZHAO,

LIU

et al. 2024

Acta Geologica Sinica (Eng)

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The evolution and reforming history of the Cenozoic basins in the northeastern Tibetan Plateau (NETP) are significant for understanding the northeastward growth of the Tibetan Plateau. The sediments in these basins archived the spatial‐temporal patterns of the surface uplift and deformation processes in response to remote effects of growth of the NETP. Here, we present an integrated provenance analysis of the Ningnan basin in the NETP to provide direct insights into the basin evolution and further constraints of the Tibetan Plateau's northeastward growth. In this study, the Cenozoic strata (the Sikouzi, Qingshuiying, Zhang'enpu and Ganhegou formations) in the Ningnan basin yield complex detrital zircon age distributions featured by predominant age populations at 200–360 Ma and 360–540 Ma with minor Precambrian ages. Detrital zircon U‐Pb ages indicate that the southwestern Ordos Block, the western Qinling orogenic belt, and the eastern Qilian orogenic belt are primary source areas. Additionally, adjacent local paleo‐uplifts (e.g., Xi‐nanhuashan, Xiangshan, Liupan mountains.) also provided minor volumes of sediment. In addition, conglomerates and paleocurrent directions of the Sikouzi–Ganhegou formations exhibit an apparent change since the late Mocene, revealing an obvious provenance shift. The quantitatively determined mixing proportions of the surrounding source areas also reveals that the early source‐to‐sink system was replaced during the deposition of the Ganhegou Formation. Combined with previous studies, we suggest that the formation of the Ningnan basin was controlled by normal faults in extension setting and experienced continued sediment accumulation during the Qingshuiying–Zhang'enpu period; since the late Miocene, the significant provenance shift reflects the obvious northeastward growth of the NETP and led to the extinction of the Ningnan basin.

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Late Cenozoic paleostress reconstruction and stress regimes in Taiyuan basin of the Shanxi rift, North China

Cited by 3 publications

References 56 publications

Late Cenozoic faulting deformation of the Fanshi Basin (northern Shanxi rift, China), inferred from palaeostress analysis of mesoscale fault-slip data

Late Cenozoic faulting deformation of the Fanshi Basin (northern Shanxi rift, China), inferred from palaeostress analysis of mesoscale fault-slip data

Perspective from other rifts in the world

Provenance Analysis of the Cenozoic Sedimentary Successions in the Ningnan Basin, NE Tibetan Plateau: Constraints on Sedimentological and Tectonomorphological Evolution

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