| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m16d.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP7W/395S5HH | |||
| Repository | sid.inpe.br/mtc-m19/2011/02.08.12.16 | |||
| Last Update | 2011:02.08.12.16.07 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m19/2011/02.08.12.16.07 | |||
| Metadata Last Update | 2018:06.05.04.35.29 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | RossettiBGVAMTB:2010:LaPlRe | |||
| Title | The late Pleistocene-Holocene record of sea level in Northeastern Brazil and its relation to climate, eustasy and tectonics  | |||
| Format | On-line | |||
| Year | 2010 | |||
| Access Date | 2024, Apr. 24 | |||
| Secondary Type | PRE CI | |||
| Number of Files | 1 | |||
| Size | 440 KiB | |||
| 2. Context | ||||
| Author | 1 Rossetti, D 2 Bezerra, F H 3 Góes, A 4 Valeriano, M 5 Andrades Filho, C 6 Millani, J 7 Tatumi, S 8 Brito Neves, B B | |||
| Group | 1 DSR-OBT-INPE-MCT-BR 2 3 4 DSR-OBT-INPE-MCT-BR 5 DSR-OBT-INPE-MCT-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 3 USP, São Paulo, Brazil 4 Instituto Nacional de Pesquisas Espaciais (INPE) 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 FATEC, São Paulo, Brazil 7 FATEC, São Paulo, Brazil 8 USP, São Paulo, Brazil | |||
| Conference Name | Meeting of the Americas. | |||
| Conference Location | Foz Iguaçu | |||
| Date | 8-12 Aug. 2010 | |||
| Book Title | Proceedings | |||
| History (UTC) | 2011-02-08 12:58:01 :: marciana -> administrator :: 2010 2018-06-05 04:35:29 :: administrator -> marciana :: 2010 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Abstract | AB: Late Quaternary deposits in Northeastern Brazil have been scarcely investigated, despite their great relevance to discuss the post-rift evolution of South American passive margin within the context of landform, sea level and tectonic deformation. Sedimentological, stratigraphic and morphological characterization of these deposits led to their distinction from the underlying Early/Middle Miocene Barreiras Formation. Two sedimentary units (PB1 and PB2) were recognized and related, with basis on optically stimulated luminescence (OSL) dating, to the time intervals between 74.8±9.3 and 30.8±6.9 ka, and 8.8±0.9 and 1.8±0.2 ka, respectively. Unit PB1 is exposed discontinuously in the highest topography (usually between 100 m and 150 m), being mostly composed of endured sandstones and breccias either with massive bedding or an abundance of complex styles of ductile and brittle soft sediment deformation structures related to contemporaneous seismic activity. This unit also includes a large volume of non-indured sharply bounded, fining upward massive or stratified conglomerates and sandstones interbedded with mudstones, attributed to fluvial, alluvial and aeolian dune environments. These deposits might include nearshore marine-influenced strata in areas located nearby the modern coastline, as suggested by presence of burrows as Skolithos, Thalassinoides, Planolites, Diplocraterion, and Teichichnus. Unit PB2, composed of sands with massive or dissipation dune structures, occurs continuously, mostly on northeastward dipping tablelands located at altitudes lower than 100 m. The present work focusing on units PB1 and PB2, together referred as Post-Barreiras Sediments, opens a new opportunity to discuss landform, sea level and tectonic history of eastern South American passive margin during the latest Quaternary. Hence, following the Miocene transgression, there was a prolonged period of non-deposition and sub-aerial exposure, which is related to combination of a worldwide low sea level in the Tortonian and tectonic quiescence. Sediment deposition was reactivated during the latest Pleistocene due to tectonic deformation, which created space to accommodate unit PB1 in downthrown faulted blocks and, perhaps, also synclines produced by extension and compression associated with strike-slip tectonic deformation. Although deposition of this unit was simultaneous to the eustatic fall that followed the Penultimate Transgression, punctuated rises superimposed on the overall fall, added to subsidence, would have favored marine deposition in areas located nearby the modern coastline. A renewed phase of deformation would have resulted in newly subsiding areas in the Holocene, promoting deposition of unit PB2 over unit PB1. Although unit PB2 formed during most of the last transgression, except along coastal areas, it has no records of marine sedimentation, suggesting a non-significant rise or reworking of thin transgressive sands by aeolian process. The data presented herein leads to review the evolution of South American passive margin based on assumptions of uniform sedimentation and undeformed planation surfaces over a wide coastal area of Northeastern Brazil. | |||
| Area | SRE | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > The late Pleistocene-Holocene... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| data URL | http://urlib.net/ibi/8JMKD3MGP7W/395S5HH | |||
| zipped data URL | http://urlib.net/zip/8JMKD3MGP7W/395S5HH | |||
| Language | en | |||
| Target File | cintra.pdf | |||
| User Group | administrator marciana | |||
| Visibility | shown | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Mirror Repository | sid.inpe.br/mtc-m19@80/2009/08.21.17.02.53 | |||
| Next Higher Units | 8JMKD3MGPCW/3ER446E | |||
| Host Collection | sid.inpe.br/mtc-m19@80/2009/08.21.17.02 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor electronicmailaddress isbn issn keywords label lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup readpermission resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url versiontype volume | |||
| 7. Description control | ||||
| e-Mail (login) | marciana | |||
| update | ||||