STUDY ON THE SEQUENCE STRATIGRAPHY OF SINIAN GANJINGZI FORMATION IN DALIAN REGION, LIAONING PROVINCE

WU Zi-jie; ZHANG Guo-ren; QIU Long-wei; GAO Fu-liang; ZHONG Mi-shan; PAN Yu-qi; GAO Yong-zhao

doi:10.13686/j.cnki.dzyzy.2020.04.001

2020 Vol. 29, No. 4

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Article navigation > Geology and Resources > 2020 > 29(4): 301-309

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WU Zi-jie, ZHANG Guo-ren, QIU Long-wei, GAO Fu-liang, ZHONG Mi-shan, PAN Yu-qi, GAO Yong-zhao. STUDY ON THE SEQUENCE STRATIGRAPHY OF SINIAN GANJINGZI FORMATION IN DALIAN REGION, LIAONING PROVINCE[J]. Geology and Resources, 2020, 29(4): 301-309. doi: 10.13686/j.cnki.dzyzy.2020.04.001

Citation:

WU Zi-jie, ZHANG Guo-ren, QIU Long-wei, GAO Fu-liang, ZHONG Mi-shan, PAN Yu-qi, GAO Yong-zhao. STUDY ON THE SEQUENCE STRATIGRAPHY OF SINIAN GANJINGZI FORMATION IN DALIAN REGION, LIAONING PROVINCE[J]. Geology and Resources, 2020, 29(4): 301-309. doi: 10.13686/j.cnki.dzyzy.2020.04.001

STUDY ON THE SEQUENCE STRATIGRAPHY OF SINIAN GANJINGZI FORMATION IN DALIAN REGION, LIAONING PROVINCE

1.
School of Geosciences, China University of Petroleum(East China), Qingdao 266580, Shandong Province, China
2.
Liaoning Institute of Geological Exploration Co., Ltd., Dalian 116100, Liaoning Province, China

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Corresponding author: QIU Long-wei, qiulwsd@163.com

Received Date: 27 February 2020

Revised Date: 16 April 2020

Publish Date: 28 August 2020

Abstract

Abstract

The Ganjingzi Formation of Dalian region is an important Neoproterozoic stratigraphic horizon in Liaoning Province where lots of carbonate rocks are developed. Based on the classical sequence stratigraphy theory, through the comprehensive analysis of field survey sections, the sequence stratigraphy of Sinian Ganjingzi Formation in Dalian is studied, and 5 sequence boundaries are identified, which are further divided into 4 third-order sequences, 15 parasequence formations and 55 parasequences. The sedimentary facies of carbonate rocks can be divided into restricted platform and open platform subfacies, and subdivided into lagoon, tidal flat, low-energy subtidal and shoal microfacies. The regional tectonics and astronomical cycles are used to discuss the environmental evolution of Ganjingzi Formation. It is believed that process went through restricted platform→open platform→restricted platform. Under the influence of low-amplitude tectonic uplift and subsidence at the end of Yangtze cycle, 5 short times of exposures took place during the late Nanguanling period-Ganjingzi period in Dalian area, which formed 5 sequence boundaries. Meanwhile, effected by periodic astronomical cycles, the high-frequency cycles of parasequences are formed. The study on the sequence stratigraphy and sedimentary evolution of Ganjingzi Formation in Dalian region provides a basis for the oil-gas exploration in southeastern Liaoning Province.
- Sinian /
- Ganjingzi Formation /
- sequence stratigraphy /
- Dalian /
- Liaoning Province

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References

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