Pseudo-3D electrical resistivity tomography imaging of subsurface structure of a sinkhole—A case study in Greene County, Missouri

Conventional 2D electrical resistivity tomography (ERT) data were acquired along 16 parallel traverses spaced at 6.1 m (20 ft) intervals across a karst sinkhole site in Greene County Missouri. The acquired ERT data were processed as both 2D data and pseudo-3D data. Based on the correlation with the...

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Main Authors: Shishay Kidanu, Aleksandra Varnavina, Neil Anderson, Evgeniy Torgashov
Format: Article
Language:English
Published: AIMS Press 2020-03-01
Series:AIMS Geosciences
Subjects:
Online Access:https://www.aimspress.com/article/10.3934/geosci.2020005/fulltext.html
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spelling doaj-0de2be8728d14cad9a70176c144cbfa82020-11-25T02:07:56ZengAIMS PressAIMS Geosciences2471-21322020-03-0161547010.3934/geosci.2020005Pseudo-3D electrical resistivity tomography imaging of subsurface structure of a sinkhole—A case study in Greene County, MissouriShishay Kidanu0Aleksandra Varnavina1Neil Anderson2Evgeniy Torgashov31 Department of Mining & Geological Engineering, University of Alaska Fairbanks, Fairbanks, AK 99775, USA2 Department of Geosciences and Geological and Petroleum Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USA2 Department of Geosciences and Geological and Petroleum Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USA2 Department of Geosciences and Geological and Petroleum Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USAConventional 2D electrical resistivity tomography (ERT) data were acquired along 16 parallel traverses spaced at 6.1 m (20 ft) intervals across a karst sinkhole site in Greene County Missouri. The acquired ERT data were processed as both 2D data and pseudo-3D data. Based on the correlation with the available core hole control, multichannel analysis of surface waves (MASW) data and field observations, it is concluded that the subsurface structure of the sinkhole is more reliably imaged on the pseudo-3D dataset than in the 2D dataset. The interpretation results of the pseudo-3D ERT indicated that the sinkhole developed at the intersection of three vertical solution-widened joint sets.https://www.aimspress.com/article/10.3934/geosci.2020005/fulltext.html2d ertpseudo-3d ertmaswsinkholekarst
collection DOAJ
language English
format Article
sources DOAJ
author Shishay Kidanu
Aleksandra Varnavina
Neil Anderson
Evgeniy Torgashov
spellingShingle Shishay Kidanu
Aleksandra Varnavina
Neil Anderson
Evgeniy Torgashov
Pseudo-3D electrical resistivity tomography imaging of subsurface structure of a sinkhole—A case study in Greene County, Missouri
AIMS Geosciences
2d ert
pseudo-3d ert
masw
sinkhole
karst
author_facet Shishay Kidanu
Aleksandra Varnavina
Neil Anderson
Evgeniy Torgashov
author_sort Shishay Kidanu
title Pseudo-3D electrical resistivity tomography imaging of subsurface structure of a sinkhole—A case study in Greene County, Missouri
title_short Pseudo-3D electrical resistivity tomography imaging of subsurface structure of a sinkhole—A case study in Greene County, Missouri
title_full Pseudo-3D electrical resistivity tomography imaging of subsurface structure of a sinkhole—A case study in Greene County, Missouri
title_fullStr Pseudo-3D electrical resistivity tomography imaging of subsurface structure of a sinkhole—A case study in Greene County, Missouri
title_full_unstemmed Pseudo-3D electrical resistivity tomography imaging of subsurface structure of a sinkhole—A case study in Greene County, Missouri
title_sort pseudo-3d electrical resistivity tomography imaging of subsurface structure of a sinkhole—a case study in greene county, missouri
publisher AIMS Press
series AIMS Geosciences
issn 2471-2132
publishDate 2020-03-01
description Conventional 2D electrical resistivity tomography (ERT) data were acquired along 16 parallel traverses spaced at 6.1 m (20 ft) intervals across a karst sinkhole site in Greene County Missouri. The acquired ERT data were processed as both 2D data and pseudo-3D data. Based on the correlation with the available core hole control, multichannel analysis of surface waves (MASW) data and field observations, it is concluded that the subsurface structure of the sinkhole is more reliably imaged on the pseudo-3D dataset than in the 2D dataset. The interpretation results of the pseudo-3D ERT indicated that the sinkhole developed at the intersection of three vertical solution-widened joint sets.
topic 2d ert
pseudo-3d ert
masw
sinkhole
karst
url https://www.aimspress.com/article/10.3934/geosci.2020005/fulltext.html
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