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The role of deep-se...
The role of deep-seated half-grabens in the evolution of Huoerguosi-Manasi-Tugulu fold-and-thrust belt, northern Tian Shan, China
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- Ma, Delong (författare)
- PetroChina, Res Inst Petr Explorat & Dev Northwest, Lanzhou 730020, Gansu, Peoples R China;PetroChina, Key Lab Reservoir Descript, Lanzhou 730020, Gansu, Peoples R China
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- Koyi, Hemin (författare)
- Uppsala universitet,Mineralogi, petrologi och tektonik
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- Yuan, Jianying (författare)
- PetroChina, Res Inst Petr Explorat & Dev Northwest, Lanzhou 730020, Gansu, Peoples R China;PetroChina, Key Lab Reservoir Descript, Lanzhou 730020, Gansu, Peoples R China
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- He, Dengfa (författare)
- China Univ Geosci, Sch Energy Resources, Beijing 100083, Peoples R China
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- Zhang, Huquan (författare)
- PetroChina, Res Inst Petr Explorat & Dev Northwest, Lanzhou 730020, Gansu, Peoples R China
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- Wang, Hongbin (författare)
- PetroChina, Res Inst Petr Explorat & Dev Northwest, Lanzhou 730020, Gansu, Peoples R China;PetroChina, Key Lab Reservoir Descript, Lanzhou 730020, Gansu, Peoples R China
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- Wang, Yanjun (författare)
- PetroChina, Res Inst Petr Explorat & Dev Northwest, Lanzhou 730020, Gansu, Peoples R China;PetroChina, Key Lab Reservoir Descript, Lanzhou 730020, Gansu, Peoples R China;Nanjing Univ, Dept Earth Sci, Nanjing 210093, Jiangsu, Peoples R China
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- Cui, Jian (författare)
- Nanjing Univ, Dept Earth Sci, Nanjing 210093, Jiangsu, Peoples R China
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(creator_code:org_t)
- PERGAMON-ELSEVIER SCIENCE LTD, 2019
- 2019
- Engelska.
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Ingår i: Journal of Geodynamics. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0264-3707 .- 1879-1670. ; 131
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The Huoerguosi-Manasi-Tugulu fold-and-thrust belt, which is located in the southern Junggar Basin, has formed in response to contraction during Late Cenozoic. However, the tectonic environment for its formation before Late Cenozoic is still controversial. In this paper, we use surface data, recently collected and processed subsurface seismic refection data, isopach map of Lower Jurassic and balanced sections to propose pre-existing half-graben system developed in the Lower Jurassic with this fold-and-thrust belt. We also use results of a series of scaled sandbox analogue models, where industrial CT apparatus was used to monitor deformation, to simulate the evolution of this fold-and-thrust belt. We suggest that the segmented shape of the Huoerguosi-Manasi-Tugulu fold-and-thrust belt is a response to the presence of thrust ramps, which were formed during Early Jurassic. During Late Cenozoic shortening, the Lower Jurassic syn-rift sediments served as major detachment horizon, making a pre-existing normal fault act as a stress concentration zone leading to steeping of a thrust-ramp over the normal fault and cover detachment overstep the underlying half-grabens. Modeling results reveal that the presented structural framework has close resemblance with paleostructures especially in the intracontinental environment, which underwent a complex multicycle evolution process, and provide a new prospective for the interpretation of natural examples.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Annan geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Other Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- Scaled analogue models
- Half-graben
- South Junggar
- Huoerguosi-Manasi-Tugulu fold-and-thrust belt
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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