The use of microtomography in structural geology: A new methodology to analyse fault faces
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional de Geociências - RIGEO |
Texto Completo: | https://rigeo.cprm.gov.br/handle/doc/1267 |
Resumo: | This paper describes a new methodology to kinematically analyze faults in microscale dimensions (voxel size = 40 μm), using images obtained by X-ray computed microtomography (μCT). The equipment used is a GE MS8x-130 scanner. It was developed using rocks samples from Santa Catarina State, Brazil, and constructing micro Digital Elevation Models (μDEMs) for the fault surface, for analysing microscale brittle structures including striations, roughness and steps. Shaded relief images were created for the μDEMs, which enabled the generation of profiles to classify the secondary structures associated with the main fault surface. In the case of a sample with mineral growth that covers the fault surface, it is possible to detect the kinematic geometry even with the mineral cover. This technique proved to be useful for determining the sense of movement of faults, especially when it is not possible to determine striations in macro or microscopic analysis. When the sample has mineral deposit on the surface (mineral cover) this technique allows a relative chronology and geometric characterization between the faults with and without covering. |
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JACQUES, Patricia D.NUMMER, Alexis RosaHECK, Romulo Machado2014-07-17T14:36:41Z2014-07-17T14:36:41Z2014JACQUES,Patricia D.; NUMMER,Alexis Rosa; HECK,Romulo Machado . The use of microtomography in structural geology: A newmethodology to analyse fault faces. Journal of Structural Geology, New York, v.66, p. 347-355, Sep. 2014.01918141https://rigeo.cprm.gov.br/handle/doc/1267This paper describes a new methodology to kinematically analyze faults in microscale dimensions (voxel size = 40 μm), using images obtained by X-ray computed microtomography (μCT). The equipment used is a GE MS8x-130 scanner. It was developed using rocks samples from Santa Catarina State, Brazil, and constructing micro Digital Elevation Models (μDEMs) for the fault surface, for analysing microscale brittle structures including striations, roughness and steps. Shaded relief images were created for the μDEMs, which enabled the generation of profiles to classify the secondary structures associated with the main fault surface. In the case of a sample with mineral growth that covers the fault surface, it is possible to detect the kinematic geometry even with the mineral cover. This technique proved to be useful for determining the sense of movement of faults, especially when it is not possible to determine striations in macro or microscopic analysis. When the sample has mineral deposit on the surface (mineral cover) this technique allows a relative chronology and geometric characterization between the faults with and without covering.ElsevierGEOPROCESSAMENTOMODELO DE MICRO ELEVAÇÃO DIGITALSUPERFÍCIE DE FALHABRASILSANTA CATARINAThe use of microtomography in structural geology: A new methodology to analyse fault facesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleNew Yorkinfo:eu-repo/semantics/openAccessengreponame:Repositório Institucional de Geociências - RIGEOinstname:Companhia de Pesquisa de Recursos Minerais (CPRM)instacron:CPRMTEXTpub_final_JSG (1).pdf.txtpub_final_JSG (1).pdf.txtExtracted texttext/plain34041http://rigeo.cprm.gov.br/jspui/bitstream/doc/1267/3/pub_final_JSG%20%281%29.pdf.txt4cecdf64a3b5e37f4ada60701032d475MD53THUMBNAILpub_final_JSG (1).pdf.jpgpub_final_JSG (1).pdf.jpgGenerated Thumbnailimage/jpeg1699http://rigeo.cprm.gov.br/jspui/bitstream/doc/1267/4/pub_final_JSG%20%281%29.pdf.jpg1c2e55e545bc1fc1755df90d0ea2e324MD54ORIGINALpub_final_JSG (1).pdfpub_final_JSG (1).pdfproducao cientificaapplication/pdf5051026http://rigeo.cprm.gov.br/jspui/bitstream/doc/1267/1/pub_final_JSG%20%281%29.pdfa333d94ffe278142382e1d26ba9e7621MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://rigeo.cprm.gov.br/jspui/bitstream/doc/1267/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52doc/12672023-02-13 11:13:17.603oai:rigeo.sgb.gov.br:doc/1267Repositório InstitucionalONGhttp://rigeo.cprm.gov.br/oai/requestrigeo@sgb.gov.bropendoar:2023-02-13T14:13:17Repositório Institucional de Geociências - RIGEO - Companhia de Pesquisa de Recursos Minerais (CPRM)false |
dc.title.pt_BR.fl_str_mv |
The use of microtomography in structural geology: A new methodology to analyse fault faces |
title |
The use of microtomography in structural geology: A new methodology to analyse fault faces |
spellingShingle |
The use of microtomography in structural geology: A new methodology to analyse fault faces JACQUES, Patricia D. GEOPROCESSAMENTO MODELO DE MICRO ELEVAÇÃO DIGITAL SUPERFÍCIE DE FALHA BRASIL SANTA CATARINA |
title_short |
The use of microtomography in structural geology: A new methodology to analyse fault faces |
title_full |
The use of microtomography in structural geology: A new methodology to analyse fault faces |
title_fullStr |
The use of microtomography in structural geology: A new methodology to analyse fault faces |
title_full_unstemmed |
The use of microtomography in structural geology: A new methodology to analyse fault faces |
title_sort |
The use of microtomography in structural geology: A new methodology to analyse fault faces |
author |
JACQUES, Patricia D. |
author_facet |
JACQUES, Patricia D. NUMMER, Alexis Rosa HECK, Romulo Machado |
author_role |
author |
author2 |
NUMMER, Alexis Rosa HECK, Romulo Machado |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
JACQUES, Patricia D. NUMMER, Alexis Rosa HECK, Romulo Machado |
dc.subject.por.fl_str_mv |
GEOPROCESSAMENTO MODELO DE MICRO ELEVAÇÃO DIGITAL SUPERFÍCIE DE FALHA BRASIL SANTA CATARINA |
topic |
GEOPROCESSAMENTO MODELO DE MICRO ELEVAÇÃO DIGITAL SUPERFÍCIE DE FALHA BRASIL SANTA CATARINA |
description |
This paper describes a new methodology to kinematically analyze faults in microscale dimensions (voxel size = 40 μm), using images obtained by X-ray computed microtomography (μCT). The equipment used is a GE MS8x-130 scanner. It was developed using rocks samples from Santa Catarina State, Brazil, and constructing micro Digital Elevation Models (μDEMs) for the fault surface, for analysing microscale brittle structures including striations, roughness and steps. Shaded relief images were created for the μDEMs, which enabled the generation of profiles to classify the secondary structures associated with the main fault surface. In the case of a sample with mineral growth that covers the fault surface, it is possible to detect the kinematic geometry even with the mineral cover. This technique proved to be useful for determining the sense of movement of faults, especially when it is not possible to determine striations in macro or microscopic analysis. When the sample has mineral deposit on the surface (mineral cover) this technique allows a relative chronology and geometric characterization between the faults with and without covering. |
publishDate |
2014 |
dc.date.accessioned.fl_str_mv |
2014-07-17T14:36:41Z |
dc.date.available.fl_str_mv |
2014-07-17T14:36:41Z |
dc.date.issued.fl_str_mv |
2014 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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article |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
JACQUES,Patricia D.; NUMMER,Alexis Rosa; HECK,Romulo Machado . The use of microtomography in structural geology: A newmethodology to analyse fault faces. Journal of Structural Geology, New York, v.66, p. 347-355, Sep. 2014. |
dc.identifier.uri.fl_str_mv |
https://rigeo.cprm.gov.br/handle/doc/1267 |
dc.identifier.issn.none.fl_str_mv |
01918141 |
identifier_str_mv |
JACQUES,Patricia D.; NUMMER,Alexis Rosa; HECK,Romulo Machado . The use of microtomography in structural geology: A newmethodology to analyse fault faces. Journal of Structural Geology, New York, v.66, p. 347-355, Sep. 2014. 01918141 |
url |
https://rigeo.cprm.gov.br/handle/doc/1267 |
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eng |
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eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Elsevier |
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Elsevier |
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