Research on characteristics and geological genesis of large-scale deep-seated landslide in tuff formation
In engineering practice, engineers generally treated tuff as a lumpy material with a poorly defined laminated structure and a rock group that was not susceptible to slide failure. Most studies of tuff landslides had focused on small clastic landslides in shallow strata with weathering boundaries and...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2024-02-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2024.1372537/full |
| _version_ | 1797291680705019904 |
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| author | Mengqi Xue Guangli Xu Guangli Xu Feixiang Yao Zhuo Ma |
| author_facet | Mengqi Xue Guangli Xu Guangli Xu Feixiang Yao Zhuo Ma |
| author_sort | Mengqi Xue |
| collection | DOAJ |
| description | In engineering practice, engineers generally treated tuff as a lumpy material with a poorly defined laminated structure and a rock group that was not susceptible to slide failure. Most studies of tuff landslides had focused on small clastic landslides in shallow strata with weathering boundaries and lithologic interfaces as slip surfaces. This paper takes a large-scale, deep-seated tuff landslide on the southeast coast of China as the research project. We used borehole TV imaging and exploration tunnels to confirm the material composition and structural characteristics of the tuff stratum and used exploration tunnels to expose the slip soil directly. Microscopic identification, mineralogical composition analysis, zircon U-Pb isotope dating, and Hf isotope analysis of slip soils collected from the exploration tunnels elucidated the geologic background and genesis of the large-scale deep-seated landslides in the tuff stratum. It was found that the formation of a tuff stratum in the landslide area was caused by multi-volcanic orogeny and multi-phase tectonics. The timing of the melting of the original magma from these volcanic events also differs. During these intervals between eruptions, deposition occurred, and this sedimentary material formed the slip soil. |
| first_indexed | 2024-03-07T19:40:16Z |
| format | Article |
| id | doaj.art-0e8c4fc0608d4604973e58a3aae5b841 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-03-07T19:40:16Z |
| publishDate | 2024-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-0e8c4fc0608d4604973e58a3aae5b8412024-02-29T05:33:20ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632024-02-011210.3389/feart.2024.13725371372537Research on characteristics and geological genesis of large-scale deep-seated landslide in tuff formationMengqi Xue0Guangli Xu1Guangli Xu2Feixiang Yao3Zhuo Ma4Institute of Geological Survey, China University of Geosciences, Wuhan, ChinaInstitute of Geological Survey, China University of Geosciences, Wuhan, ChinaFaculty of Engineering, China University of Geosciences, Wuhan, ChinaChina United Engineering Corporation Limited, Hangzhou, ChinaChina Energy Engineering Group Yunnan Electric Power Design Institute, Kunming, ChinaIn engineering practice, engineers generally treated tuff as a lumpy material with a poorly defined laminated structure and a rock group that was not susceptible to slide failure. Most studies of tuff landslides had focused on small clastic landslides in shallow strata with weathering boundaries and lithologic interfaces as slip surfaces. This paper takes a large-scale, deep-seated tuff landslide on the southeast coast of China as the research project. We used borehole TV imaging and exploration tunnels to confirm the material composition and structural characteristics of the tuff stratum and used exploration tunnels to expose the slip soil directly. Microscopic identification, mineralogical composition analysis, zircon U-Pb isotope dating, and Hf isotope analysis of slip soils collected from the exploration tunnels elucidated the geologic background and genesis of the large-scale deep-seated landslides in the tuff stratum. It was found that the formation of a tuff stratum in the landslide area was caused by multi-volcanic orogeny and multi-phase tectonics. The timing of the melting of the original magma from these volcanic events also differs. During these intervals between eruptions, deposition occurred, and this sedimentary material formed the slip soil.https://www.frontiersin.org/articles/10.3389/feart.2024.1372537/fulllarge-scale landslidedeep-seated landslidetuffintermittent eruptionslip soil |
| spellingShingle | Mengqi Xue Guangli Xu Guangli Xu Feixiang Yao Zhuo Ma Research on characteristics and geological genesis of large-scale deep-seated landslide in tuff formation Frontiers in Earth Science large-scale landslide deep-seated landslide tuff intermittent eruption slip soil |
| title | Research on characteristics and geological genesis of large-scale deep-seated landslide in tuff formation |
| title_full | Research on characteristics and geological genesis of large-scale deep-seated landslide in tuff formation |
| title_fullStr | Research on characteristics and geological genesis of large-scale deep-seated landslide in tuff formation |
| title_full_unstemmed | Research on characteristics and geological genesis of large-scale deep-seated landslide in tuff formation |
| title_short | Research on characteristics and geological genesis of large-scale deep-seated landslide in tuff formation |
| title_sort | research on characteristics and geological genesis of large scale deep seated landslide in tuff formation |
| topic | large-scale landslide deep-seated landslide tuff intermittent eruption slip soil |
| url | https://www.frontiersin.org/articles/10.3389/feart.2024.1372537/full |
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