Evaluation of distinct soft-sediment deformation triggers in mixed carbonate-siliciclastic systems: Lessons from the Brazilian Pre-Salt analogue Crato Formation (Araripe Basin, NE Brazil)

Detalhes bibliográficos
Autor(a) principal: Varejão, F. G.
Data de Publicação: 2022
Outros Autores: Warren, L. V. [UNESP], Simões, M. G. [UNESP], Cerri, R. I. [UNESP], Alessandretti, L., Santos, M. G.M., Assine, M. L. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.marpetgeo.2022.105673
http://hdl.handle.net/11449/239896
Resumo: Soft-sediment deformation structures (SSDSs) are ubiquitous in several depositional sedimentary environments and can be triggered by autogenic- and allogenic-related mechanisms. SSDSs identification in the geological record is more frequent in siliciclastic deposits, from which the most accepted models were developed. Given the fact that carbonate rocks have rapid diagenesis, which results in changes in the rheological behavior of deformational processes in short time, these are excellent facies for exploring past deformational mechanisms in a given sedimentary basin. Here, we describe distinct SSDSs developed in mixed carbonate-siliciclastic successions deposited in an Early Cretaceous lacustrine depositional system (carbonate-dominated) subjected to recurrent epicontinental marine ingressions (siliciclastic-dominated). Deformation occur in some siliciclastic intervals but it is more common in carbonate beds. Facies associations analysis combined with detailed outcrop description of the SSDSs allowed the recognition of seismic- and non-seismic-generated structures. Two km-scale, laterally continuous carbonate beds, characterized by deformation-bearing horizons, are interpreted to be the result of seismic shocks. Conversely, most of the recognized SSDSs cannot be confidentially interpreted as seismites. Autogenic triggers and criteria for accessing the origin of deformation mechanisms in both carbonate- and siliciclastic-dominated settings are alternatively proposed. Assessing such criteria is fundamental for differentiatte the timing and range of deformation and are here discussed in the context of the offshore petroleum reservoirs in the Brazilian Pre-Salt successions, where lacustrine carbonates were probably subjected to a similiar superposition of syn-sedimentary seismicity and later events of salt-tectonics and hydrotermalism.
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spelling Evaluation of distinct soft-sediment deformation triggers in mixed carbonate-siliciclastic systems: Lessons from the Brazilian Pre-Salt analogue Crato Formation (Araripe Basin, NE Brazil)Autogenic triggerCrato formationLacustrine carbonatePre-salt analogueSeismicitySoft-sediment deformationSoft-sediment deformation structures (SSDSs) are ubiquitous in several depositional sedimentary environments and can be triggered by autogenic- and allogenic-related mechanisms. SSDSs identification in the geological record is more frequent in siliciclastic deposits, from which the most accepted models were developed. Given the fact that carbonate rocks have rapid diagenesis, which results in changes in the rheological behavior of deformational processes in short time, these are excellent facies for exploring past deformational mechanisms in a given sedimentary basin. Here, we describe distinct SSDSs developed in mixed carbonate-siliciclastic successions deposited in an Early Cretaceous lacustrine depositional system (carbonate-dominated) subjected to recurrent epicontinental marine ingressions (siliciclastic-dominated). Deformation occur in some siliciclastic intervals but it is more common in carbonate beds. Facies associations analysis combined with detailed outcrop description of the SSDSs allowed the recognition of seismic- and non-seismic-generated structures. Two km-scale, laterally continuous carbonate beds, characterized by deformation-bearing horizons, are interpreted to be the result of seismic shocks. Conversely, most of the recognized SSDSs cannot be confidentially interpreted as seismites. Autogenic triggers and criteria for accessing the origin of deformation mechanisms in both carbonate- and siliciclastic-dominated settings are alternatively proposed. Assessing such criteria is fundamental for differentiatte the timing and range of deformation and are here discussed in the context of the offshore petroleum reservoirs in the Brazilian Pre-Salt successions, where lacustrine carbonates were probably subjected to a similiar superposition of syn-sedimentary seismicity and later events of salt-tectonics and hydrotermalism.PetrobrasFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Departamento de Geologia Escola de Minas Universidade Federal de Ouro Preto, Morro do Cruzeiro, MGDepartamento de Geologia Instituto de Geociências e Ciências Exatas Universidade Estadual Paulista, Avenida 24-A, Bela Vista, 178, SPInstituto de Biociências Universidade Estadual Paulista, Distrito de Rubião Junior s/n, 510, SPInstituto de Geografia Universidade Federal de Uberlândia, Rodovia LMG-746 Km 01, MGCECS Universidade Federal do ABC (UFABC), Av. dos Estados 5001, SPDepartamento de Geologia Instituto de Geociências e Ciências Exatas Universidade Estadual Paulista, Avenida 24-A, Bela Vista, 178, SPInstituto de Biociências Universidade Estadual Paulista, Distrito de Rubião Junior s/n, 510, SPPetrobras: 2014/00519–9FAPESP: 2016/13214–7Universidade Federal de Ouro PretoUniversidade Estadual Paulista (UNESP)Universidade Federal de Uberlândia (UFU)Universidade Federal do ABC (UFABC)Varejão, F. G.Warren, L. V. [UNESP]Simões, M. G. [UNESP]Cerri, R. I. [UNESP]Alessandretti, L.Santos, M. G.M.Assine, M. L. [UNESP]2023-03-01T19:52:13Z2023-03-01T19:52:13Z2022-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.marpetgeo.2022.105673Marine and Petroleum Geology, v. 140.0264-8172http://hdl.handle.net/11449/23989610.1016/j.marpetgeo.2022.1056732-s2.0-85128335285Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMarine and Petroleum Geologyinfo:eu-repo/semantics/openAccess2023-03-01T19:52:13Zoai:repositorio.unesp.br:11449/239896Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-03-01T19:52:13Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Evaluation of distinct soft-sediment deformation triggers in mixed carbonate-siliciclastic systems: Lessons from the Brazilian Pre-Salt analogue Crato Formation (Araripe Basin, NE Brazil)
title Evaluation of distinct soft-sediment deformation triggers in mixed carbonate-siliciclastic systems: Lessons from the Brazilian Pre-Salt analogue Crato Formation (Araripe Basin, NE Brazil)
spellingShingle Evaluation of distinct soft-sediment deformation triggers in mixed carbonate-siliciclastic systems: Lessons from the Brazilian Pre-Salt analogue Crato Formation (Araripe Basin, NE Brazil)
Varejão, F. G.
Autogenic trigger
Crato formation
Lacustrine carbonate
Pre-salt analogue
Seismicity
Soft-sediment deformation
title_short Evaluation of distinct soft-sediment deformation triggers in mixed carbonate-siliciclastic systems: Lessons from the Brazilian Pre-Salt analogue Crato Formation (Araripe Basin, NE Brazil)
title_full Evaluation of distinct soft-sediment deformation triggers in mixed carbonate-siliciclastic systems: Lessons from the Brazilian Pre-Salt analogue Crato Formation (Araripe Basin, NE Brazil)
title_fullStr Evaluation of distinct soft-sediment deformation triggers in mixed carbonate-siliciclastic systems: Lessons from the Brazilian Pre-Salt analogue Crato Formation (Araripe Basin, NE Brazil)
title_full_unstemmed Evaluation of distinct soft-sediment deformation triggers in mixed carbonate-siliciclastic systems: Lessons from the Brazilian Pre-Salt analogue Crato Formation (Araripe Basin, NE Brazil)
title_sort Evaluation of distinct soft-sediment deformation triggers in mixed carbonate-siliciclastic systems: Lessons from the Brazilian Pre-Salt analogue Crato Formation (Araripe Basin, NE Brazil)
author Varejão, F. G.
author_facet Varejão, F. G.
Warren, L. V. [UNESP]
Simões, M. G. [UNESP]
Cerri, R. I. [UNESP]
Alessandretti, L.
Santos, M. G.M.
Assine, M. L. [UNESP]
author_role author
author2 Warren, L. V. [UNESP]
Simões, M. G. [UNESP]
Cerri, R. I. [UNESP]
Alessandretti, L.
Santos, M. G.M.
Assine, M. L. [UNESP]
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal de Ouro Preto
Universidade Estadual Paulista (UNESP)
Universidade Federal de Uberlândia (UFU)
Universidade Federal do ABC (UFABC)
dc.contributor.author.fl_str_mv Varejão, F. G.
Warren, L. V. [UNESP]
Simões, M. G. [UNESP]
Cerri, R. I. [UNESP]
Alessandretti, L.
Santos, M. G.M.
Assine, M. L. [UNESP]
dc.subject.por.fl_str_mv Autogenic trigger
Crato formation
Lacustrine carbonate
Pre-salt analogue
Seismicity
Soft-sediment deformation
topic Autogenic trigger
Crato formation
Lacustrine carbonate
Pre-salt analogue
Seismicity
Soft-sediment deformation
description Soft-sediment deformation structures (SSDSs) are ubiquitous in several depositional sedimentary environments and can be triggered by autogenic- and allogenic-related mechanisms. SSDSs identification in the geological record is more frequent in siliciclastic deposits, from which the most accepted models were developed. Given the fact that carbonate rocks have rapid diagenesis, which results in changes in the rheological behavior of deformational processes in short time, these are excellent facies for exploring past deformational mechanisms in a given sedimentary basin. Here, we describe distinct SSDSs developed in mixed carbonate-siliciclastic successions deposited in an Early Cretaceous lacustrine depositional system (carbonate-dominated) subjected to recurrent epicontinental marine ingressions (siliciclastic-dominated). Deformation occur in some siliciclastic intervals but it is more common in carbonate beds. Facies associations analysis combined with detailed outcrop description of the SSDSs allowed the recognition of seismic- and non-seismic-generated structures. Two km-scale, laterally continuous carbonate beds, characterized by deformation-bearing horizons, are interpreted to be the result of seismic shocks. Conversely, most of the recognized SSDSs cannot be confidentially interpreted as seismites. Autogenic triggers and criteria for accessing the origin of deformation mechanisms in both carbonate- and siliciclastic-dominated settings are alternatively proposed. Assessing such criteria is fundamental for differentiatte the timing and range of deformation and are here discussed in the context of the offshore petroleum reservoirs in the Brazilian Pre-Salt successions, where lacustrine carbonates were probably subjected to a similiar superposition of syn-sedimentary seismicity and later events of salt-tectonics and hydrotermalism.
publishDate 2022
dc.date.none.fl_str_mv 2022-06-01
2023-03-01T19:52:13Z
2023-03-01T19:52:13Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.marpetgeo.2022.105673
Marine and Petroleum Geology, v. 140.
0264-8172
http://hdl.handle.net/11449/239896
10.1016/j.marpetgeo.2022.105673
2-s2.0-85128335285
url http://dx.doi.org/10.1016/j.marpetgeo.2022.105673
http://hdl.handle.net/11449/239896
identifier_str_mv Marine and Petroleum Geology, v. 140.
0264-8172
10.1016/j.marpetgeo.2022.105673
2-s2.0-85128335285
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Marine and Petroleum Geology
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
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