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)
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , |
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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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) |
repository.mail.fl_str_mv |
|
_version_ |
1799964580993040384 |