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Geological Structure Exploration of the Front Area of Mogao Grottoes of Dunhuang Based on ESPAC Method
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Baiyun LIU1, 2, 3, Shuncheng LI1, *, Yanyun LIU4, Shuai ZHANG3, Zhiwen LIU3, Jing MA2, Li ZHAO5
Journal of Geodesy and Geodynamics | 2025, 45(2) : 140 - 143
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Journal of Geodesy and Geodynamics | 2025, 45(2): 140-143
Geological Structure Exploration of the Front Area of Mogao Grottoes of Dunhuang Based on ESPAC Method
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Baiyun LIU1, 2, 3, Shuncheng LI1, *, Yanyun LIU4, Shuai ZHANG3, Zhiwen LIU3, Jing MA2, Li ZHAO5
Affiliations
  • 1 State Key Laboratory of Earthquake Dynamics, Institute of Geology, CEA, A1 Huayanli, Beijing 100029, China
  • 2 Gansu Earthquake Agency, 450 West-Donggang Road, Lanzhou 730000, China
  • 3 Gansu Provincial Research Center for Conservation of Dunhuang Cultural Heritage, 800 Zhangsutan, Lanzhou 730000, China
  • 4 Xinjiang Zhongzhi Shenghe Construction Engineering Co Ltd, 1555 Mid-Changchun Road, Urumqi 830011, China
  • 5 China Tower Co Ltd, Gansu Branch, 1201 Huoxing Street, Lanzhou 730050, China

    • LIU Baiyun, senior engineer, majors in microtremor detection and crustal structure, E-mail:

About Author:

LIU Baiyun, senior engineer, majors in microtremor detection and crustal structure, E-mail:

Published: 2025-02-15 doi: 10.14075/j.jgg.2024.03.108
Outline
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We use the ESPAC method to detect the geological structure below the Mogao Grottoes of Dunhuang using observed data obtained by linear array. The detection results show that the layers determined by microtremor survey method are clearly visible, with significant fluctuations of each layer on the two-dimensional microtremor apparent S-wave velocity profile. The covering layer is thick at both ends and thin in the middle. There is a bedrock intrusion in the middle of profile, and there is a solitary stone with a width of 30 m×40 m. Using geological survey data calibration of the relevant region, we show that the thickness of Quaternary cover layer represented by mixed backfill, fine sand, and gravel sand is about 8 m, and the burial depth of complete bedrock surface is about 30 m. The research results can provide geophysical basis for the protection of cultural relics in the Mogao Grottoes.

ESPAC method  /  microtremor detection  /  stratigraphic structure  /  Mogao Grottoes
刘白云, 李顺成, 刘艳云, 张帅, 刘志文, 马婧, 赵莉. 基于ESPAC法探测敦煌莫高窟窟前地质结构. 大地测量与地球动力学, 2025 , 45 (2) : 140 -143 . DOI: 10.14075/j.jgg.2024.03.108
Baiyun LIU, Shuncheng LI, Yanyun LIU, Shuai ZHANG, Zhiwen LIU, Jing MA, Li ZHAO. Geological Structure Exploration of the Front Area of Mogao Grottoes of Dunhuang Based on ESPAC Method[J]. Journal of Geodesy and Geodynamics, 2025 , 45 (2) : 140 -143 . DOI: 10.14075/j.jgg.2024.03.108
Funding
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  • Special Fund for Basic Scientific Research of Central Public Research Institutes(LISCEA202401)
  • Science and Technology Key Research and Development Program of Gansu Province(22YF7FA079)
  • Science and Technology Key Research and Development Program of Gansu Province(22YF7GA056)
  • Science and Technology Key Research and Development Program of Gansu Province(23YFFA0029)
  • Open Fund of State Key Laboratory of Earthquake Dynamics(LED2020B01)
  • Special Fund for Basic Scientific Research of Institute of Earthquake Forecasting(2017IESLZ02)
Appendix
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Year 2025 volume 45 Issue 2
25
9
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Article Info
doi: 10.14075/j.jgg.2024.03.108
  • Receive Date：2024-03-14
  • Online Date：2026-10-30
  • Published：2025-02-15
Article Data
Affiliations
History
  • Received：2024-03-14
Funding
Special Fund for Basic Scientific Research of Central Public Research Institutes(LISCEA202401)
Science and Technology Key Research and Development Program of Gansu Province(22YF7FA079)
Science and Technology Key Research and Development Program of Gansu Province(22YF7GA056)
Science and Technology Key Research and Development Program of Gansu Province(23YFFA0029)
Open Fund of State Key Laboratory of Earthquake Dynamics(LED2020B01)
Special Fund for Basic Scientific Research of Institute of Earthquake Forecasting(2017IESLZ02)
Affiliations
    1 State Key Laboratory of Earthquake Dynamics, Institute of Geology, CEA, A1 Huayanli, Beijing 100029, China
    2 Gansu Earthquake Agency, 450 West-Donggang Road, Lanzhou 730000, China
    3 Gansu Provincial Research Center for Conservation of Dunhuang Cultural Heritage, 800 Zhangsutan, Lanzhou 730000, China
    4 Xinjiang Zhongzhi Shenghe Construction Engineering Co Ltd, 1555 Mid-Changchun Road, Urumqi 830011, China
    5 China Tower Co Ltd, Gansu Branch, 1201 Huoxing Street, Lanzhou 730050, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
Number of
species		 占总种数比例
Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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