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1. Identity statement
Reference TypeJournal Article
Sitemtc-m21c.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34R/3UM9FJ2
Repositorysid.inpe.br/mtc-m21c/2020/01.02.13.39   (restricted access)
Last Update2020:01.02.13.39.01 (UTC) administrator
Metadata Repositorysid.inpe.br/mtc-m21c/2020/01.02.13.39.01
Metadata Last Update2022:01.04.01.34.54 (UTC) administrator
DOI10.1016/j.marpetgeo.2019.08.001
ISSN0264-8172
Citation KeyBezerraCMSMRBSN:2020:PoStFi
TitlePostrift stress field inversion in the Potiguar Basin, Brazil – Implications for petroleum systems and evolution of the equatorial margin of South America
Year2020
MonthJan.
Access Date2024, May 06
Type of Workjournal article
Secondary TypePRE PI
Number of Files1
Size9529 KiB
2. Context
Author1 Bezerra, Francisco H.
2 Castro, David L. de
3 Maia, Rubson P.
4 Sousa, Maria O. L.
5 Moura Lima, Elissandra N.
6 Rossetti, Dilce de Fátima
7 Bertotti, Giovanni
8 Souza, Zorano S.
9 Nogueira, Francisco C. C.
Group1
2
3
4
5
6 DIDSR-CGOBT-INPE-MCTIC-GOV-BR
Affiliation1 Universidade Federal do Rio Grande do Norte (UFRN)
2 Universidade Federal do Rio Grande do Norte (UFRN)
3 Universidade Federal do Ceará (UFC)
4 Universidade Federal do Rio Grande do Norte (UFRN)
5 Universidade Federal de Campina Grande (UFCG)
6 Instituto Nacional de Pesquisas Espaciais (INPE)
7 Delft University of Technology
8 Universidade Federal do Rio Grande do Norte (UFRN)
9 Universidade Federal de Campina Grande (UFCG)
Author e-Mail Address1 bezerrafh@geologia.ufrn.br
2
3
4
5
6 dilce.rossetti@inpe.br
JournalMarine and Petroleum Geology
Volume111
Pages88-104
History (UTC)2020-01-02 13:41:18 :: simone -> administrator :: 2020
2022-01-04 01:34:54 :: administrator -> simone :: 2020
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsNeotectonics
Basin inversion
Stress field
Equatorial margin
Tectonic uplift
AbstractRifting and related normal stress regime in the equatorial continental margin of Brazil ceased during the Late Cretaceous, when the stress regimes in eastern South America and West Africa changed to induce strike-slip or reverse motion. In this study, we explore the postrift tectonic, geomorphic, magmatic, and sedimentary responses to stress changes using the Potiguar Basin, the easternmost basin in the equatorial margin of Brazil, as a case study. We use field and topographic data, 2D seismic reflection lines, vertical electric soundings, and geochronological and borehole data to constrain the stress evolution of the Potiguar Basin from the Late Cretaceous to the Quaternary, discussing the role of basin inversion on sedimentation and landforms. Our results indicate the presence of two strike-slip stress regimes after rifting. The first stress field (SF1) occurred from Late Cretaceous to the middle Miocene and consisted of a N-S-oriented maximum subhorizontal compression and an E-W-oriented extension. The second stress field (SF2) took place from the middle Miocene to the present day and included subhorizontal E-W to NW-SE compression combined with N-S and NE-SW subhorizontal extension. Emplacement of volcanic rocks occurred along transtensional faults, with a principal peak during SF1 at 20-30 Ma and a subordinate peak during SF2 at 5-10 Ma, In response to shortening during SF2, a 70-kin-long and 50-km-wide dome formed, where marine Miocene strata were uplifted to similar to 250 m asl. This uplift induced the displacement of alluvial channels away from the dome. Anticlines formed by transpression along the main NE-SW-striking faults during both SF1 and ST2 acted as traps in the petroleum system. Similar shifts and stress field inversions documented in other areas of the Brazilian continental margin are consistent with the Neogene rise of the Andes and may have implications for reconstructing the tectonic history of the Equatorial Atlantic margin of South America.
AreaSRE
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4. Conditions of access and use
Languageen
Target Filebezerra_postrif.pdf
User Groupsimone
Visibilityshown
Read Permissiondeny from all and allow from 150.163
Update Permissionnot transferred
5. Allied materials
Next Higher Units8JMKD3MGPCW/3ER446E
DisseminationPORTALCAPES
Host Collectionurlib.net/www/2017/11.22.19.04
6. Notes
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