| 1. Identity statement | |
| Reference Type | Journal Article |
| Site | plutao.sid.inpe.br |
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
| Identifier | 8JMKD3MGP3W/3HG7MJF |
| Repository | sid.inpe.br/plutao/2014/12.01.13.56.19 (restricted access) |
| Last Update | 2015:01.15.17.42.20 (UTC) administrator |
| Metadata Repository | sid.inpe.br/plutao/2014/12.01.13.56.20 |
| Metadata Last Update | 2018:06.04.23.39.43 (UTC) administrator |
| DOI | 10.1016/j.jsames.2014.09.018 |
| ISSN | 0895-9811 |
| Label | lattes: 0307721738107549 2 AndradesFoRoBeMeVaCrOl:2014:MaNeQu |
| Citation Key | AndradesFoRoBeMeVaCrOl:2014:MaNeQu |
| Title | Mapping Neogene and Quaternary sedimentary deposits in northeastern Brazil by integrating geophysics, remote sensing and geological field data  |
| Year | 2014 |
| Month | Dec. |
| Access Date | 2024, May 22 |
| Secondary Type | PRE PI |
| Number of Files | 1 |
| Size | 5645 KiB |
| 2. Context | |
| Author | 1 Andrades Filho, Clódis de Oliveira 2 Rossetti, Dilce de Fátima 3 Bezerra, Francisco Hilário 4 Medeiros, Walter Eugênio 5 Valeriano, Márcio de Morisson 6 Cremon, Édipo Henrique 7 Oliveira, Roberto Gusmão de |
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JGTQ 3 4 5 8JMKD3MGP5W/3C9JHPL |
| Group | 1 2 DSR-OBT-INPE-MCTI-GOV-BR 3 4 5 DSR-OBT-INPE-MCTI-GOV-BR 6 SER-SRE-SPG-INPE-MCTI-GOV-BR |
| Affiliation | 1 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 4 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 Instituto Nacional de Pesquisas Espaciais (INPE) |
| e-Mail Address | marcelo.pazos@inpe.br |
| Journal | Journal of South American Earth Sciences |
| Volume | 56 |
| Pages | 316-327 |
| Secondary Mark | A1_GEOGRAFIA A1_INTERDISCIPLINAR A2_GEOCIÊNCIAS A2_CIÊNCIAS_AGRÁRIAS_I A2_ENGENHARIAS_III B1_MEDICINA_II B1_BIODIVERSIDADE B1_ANTROPOLOGIA_/_ARQUEOLOGIA B1_CIÊNCIAS_AMBIENTAIS B1_ODONTOLOGIA B2_MATERIAIS B2_QUÍMICA B2_CIÊNCIAS_BIOLÓGICAS_I B3_ASTRONOMIA_/_FÍSICA C_ENGENHARIAS_II |
| History (UTC) | 2014-12-01 13:56:20 :: lattes -> administrator :: 2018-06-04 23:39:43 :: administrator -> marciana :: 2014 |
| 3. Content and structure | |
| Is the master or a copy? | is the master |
| Content Stage | completed |
| Transferable | 1 |
| Content Type | External Contribution |
| Version Type | publisher |
| Keywords | Barreiras Formation Post-Barreiras sediments Gamma-ray Morphometry |
| Abstract | Neogene and late Quaternary sedimentary deposits corresponding respectively to the Barreiras Formation and Post-Barreiras Sediments are abundant along the Brazilian coast. Such deposits are valuable for reconstructing sea level fluctuations and recording tectonic reactivation along the passive margin of South America. Despite this relevance, much effort remains to be invested in discriminating these units in their various areas of occurrence. The main objective of this work is to develop and test a new methodology for semi-automated mapping of Neogene and late Quaternary sedimentary deposits in northeastern Brazil integrating geophysical and remote sensing data. The central onshore Paraíba Basin was selected due to the recent availability of a detailed map based on the integration of surface and subsurface geological data. We used airborne gamma-ray spectrometry (i.e., potassium-K and thorium-Th concentration) and morphometric data (i.e., reliefdissection, slope and elevation) extracted from the digital elevation model (DEM) generated by the Shuttle Radar Topography Mission (SRTM). The procedures included: (a) data integration using geographic information systems (GIS); (b) exploratory statistical analyses, including the definition of parameters and thresholds for class discrimination for a set of sample plots; and (c) development and application of a decision-tree classification. Data validation was based on: (i) statistical analysis of geochemical and airborne gamma-ray spectrometry data consisting of K and Th concentrations; and (ii) map validation with the support of a confusion matrix, overall accuracy, as well as quantity disagreement and allocation disagreement for accuracy assessment based on field points. The concentration of K successfully separated the sedimentary units of the basin from Precambrian basement rocks. The reliefdissection morphometric variable allowed the discrimination between the Barreiras Formation and the Post-Barreiras Sediments. In addition, two units of the latter (i.e., PB1 and PB2) previously mapped in the field were promptly separated based on Th concentration. A regression analysis indicated that the relationship between geophysical and geochemical values obtained for the PB1, PB2 and Barreiras Formation is significant (R-squared = 0.91; p-value <0.05). Map validation presented a high overall accuracy of 84%, with a coefficient of quantity disagreement of 12% and a coefficient of allocation disagreement of 8%. These results indicate that the methodology applied in the central onshore Paraíba Basin can be successfully used for mapping the Barreiras Formation and Post-Barreiras Sediments in other areas of the Brazilian coast. The ability to rapidly and precisely map these units using such methodology could reveal their geographic distribution along the northeastern coast of Brazil. |
| Area | SRE |
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Mapping Neogene and... |
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > SER > Mapping Neogene and... |
| doc Directory Content | access |
| source Directory Content | there are no files |
| agreement Directory Content | there are no files |
| 4. Conditions of access and use | |
| Language | en |
| Target File | 1-s2.0-S0895981114001308-clodis.pdf |
| User Group | lattes marcelo.pazos@inpe.br marciana |
| Reader Group | administrator marcelo.pazos@inpe.br marciana |
| Visibility | shown |
| Archiving Policy | denypublisher denyfinaldraft24 |
| Read Permission | deny from all and allow from 150.163 |
| Update Permission | not transferred |
| 5. Allied materials | |
| Linking | Trabalho não Vinculado à Tese/Dissertação |
| Mirror Repository | iconet.com.br/banon/2006/11.26.21.31 |
| Next Higher Units | 8JMKD3MGPCW/3ER446E 8JMKD3MGPCW/3F3NU5S |
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.44.37 1 sid.inpe.br/bibdigital/2013/10.18.22.34 1 sid.inpe.br/mtc-m21/2012/07.13.14.54.54 1 |
| Dissemination | WEBSCI; PORTALCAPES; SCOPUS. |
| Host Collection | dpi.inpe.br/plutao@80/2008/08.19.15.01 |
| 6. Notes | |
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel electronicmailaddress format isbn lineage mark nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarytype typeofwork url |
| 7. Description control | |
| e-Mail (login) | marciana |
| update | |