Constructing 3D geological models based on large-scale geological maps

The construction of 3D geological models based on geological maps is a subject worthy of study. The construction of geological interfaces is the key process of 3D geological modeling. It is hard to build the bottom interfaces of quaternary strata only using boundaries in large-scale geological maps....

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Autores principales:	Wu Xuechao, Liu Gang, Weng Zhengping, Tian Yiping, Zhang Zhiting, Li Yang, Chen Genshen
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	3d geological modeling large-scale geological maps geological interfaces virtual thickness contours occurrence interpolation Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/9f2e6e7556cc4b099c831ae39d36f996
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id	oai:doaj.org-article:9f2e6e7556cc4b099c831ae39d36f996
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spelling	oai:doaj.org-article:9f2e6e7556cc4b099c831ae39d36f9962021-12-05T14:10:49ZConstructing 3D geological models based on large-scale geological maps2391-544710.1515/geo-2020-0270https://doaj.org/article/9f2e6e7556cc4b099c831ae39d36f9962021-08-01T00:00:00Zhttps://doi.org/10.1515/geo-2020-0270https://doaj.org/toc/2391-5447The construction of 3D geological models based on geological maps is a subject worthy of study. The construction of geological interfaces is the key process of 3D geological modeling. It is hard to build the bottom interfaces of quaternary strata only using boundaries in large-scale geological maps. Moreover, it is impossible to construct bedrock geological interfaces through sparse occurrence data in large-scale geological maps. To address the above-mentioned two difficulties, we integrated two key algorithms into a new 3D modeling workflow. The buffer algorithm was used to construct virtual thickness contours of quaternary strata. The Inverse Distance Weighted (IDW) algorithm was applied to occurrence interpolation. Using a regional geological map of a city in southern China, the effectiveness of our workflow was verified. The complex spatial geometry of quaternary bottom interfaces was described in detail through boundaries buffer. The extension trends of bedrock geological interfaces were reasonably constraint by occurrence interpolation. The 3D geological model constructed by our workflow accords with the semantic relationship of tectonics. Through the model, the complex spatial structure of urban shallow strata can be displayed stereoscopically. It can provide auxiliary basis for decision-making of urban underground engineering.Wu XuechaoLiu GangWeng ZhengpingTian YipingZhang ZhitingLi YangChen GenshenDe Gruyterarticle3d geological modelinglarge-scale geological mapsgeological interfacesvirtual thickness contoursoccurrence interpolationGeologyQE1-996.5ENOpen Geosciences, Vol 13, Iss 1, Pp 851-866 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	3d geological modeling large-scale geological maps geological interfaces virtual thickness contours occurrence interpolation Geology QE1-996.5
spellingShingle	3d geological modeling large-scale geological maps geological interfaces virtual thickness contours occurrence interpolation Geology QE1-996.5 Wu Xuechao Liu Gang Weng Zhengping Tian Yiping Zhang Zhiting Li Yang Chen Genshen Constructing 3D geological models based on large-scale geological maps
description	The construction of 3D geological models based on geological maps is a subject worthy of study. The construction of geological interfaces is the key process of 3D geological modeling. It is hard to build the bottom interfaces of quaternary strata only using boundaries in large-scale geological maps. Moreover, it is impossible to construct bedrock geological interfaces through sparse occurrence data in large-scale geological maps. To address the above-mentioned two difficulties, we integrated two key algorithms into a new 3D modeling workflow. The buffer algorithm was used to construct virtual thickness contours of quaternary strata. The Inverse Distance Weighted (IDW) algorithm was applied to occurrence interpolation. Using a regional geological map of a city in southern China, the effectiveness of our workflow was verified. The complex spatial geometry of quaternary bottom interfaces was described in detail through boundaries buffer. The extension trends of bedrock geological interfaces were reasonably constraint by occurrence interpolation. The 3D geological model constructed by our workflow accords with the semantic relationship of tectonics. Through the model, the complex spatial structure of urban shallow strata can be displayed stereoscopically. It can provide auxiliary basis for decision-making of urban underground engineering.
format	article
author	Wu Xuechao Liu Gang Weng Zhengping Tian Yiping Zhang Zhiting Li Yang Chen Genshen
author_facet	Wu Xuechao Liu Gang Weng Zhengping Tian Yiping Zhang Zhiting Li Yang Chen Genshen
author_sort	Wu Xuechao
title	Constructing 3D geological models based on large-scale geological maps
title_short	Constructing 3D geological models based on large-scale geological maps
title_full	Constructing 3D geological models based on large-scale geological maps
title_fullStr	Constructing 3D geological models based on large-scale geological maps
title_full_unstemmed	Constructing 3D geological models based on large-scale geological maps
title_sort	constructing 3d geological models based on large-scale geological maps
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/9f2e6e7556cc4b099c831ae39d36f996
work_keys_str_mv	AT wuxuechao constructing3dgeologicalmodelsbasedonlargescalegeologicalmaps AT liugang constructing3dgeologicalmodelsbasedonlargescalegeologicalmaps AT wengzhengping constructing3dgeologicalmodelsbasedonlargescalegeologicalmaps AT tianyiping constructing3dgeologicalmodelsbasedonlargescalegeologicalmaps AT zhangzhiting constructing3dgeologicalmodelsbasedonlargescalegeologicalmaps AT liyang constructing3dgeologicalmodelsbasedonlargescalegeologicalmaps AT chengenshen constructing3dgeologicalmodelsbasedonlargescalegeologicalmaps
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Constructing 3D geological models based on large-scale geological maps

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