| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34P/3LG2698 | |||
| Repository | sid.inpe.br/mtc-m21b/2016/04.11.12.55 (restricted access) | |||
| Last Update | 2016:04.11.12.56.21 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21b/2016/04.11.12.55.43 | |||
| Metadata Last Update | 2018:06.04.02.40.41 (UTC) administrator | |||
| DOI | 10.1016/j.jsames.2016.03.006 | |||
| ISSN | 0895-9811 | |||
| Citation Key | RossettiMoliCrem:2016:GeLaAm | |||
| Title | Genesis of the largest Amazonian wetland in northern Brazil inferred by morphology and gravity anomalies  | |||
| Year | 2016 | |||
| Month | Aug. | |||
| Access Date | 2024, May 18 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 3614 KiB | |||
| 2. Context | ||||
| Author | 1 Rossetti, Dilce de Fátima 2 Molina, Eder Cassola 3 Cremon, Édipo Henrique | |||
| Resume Identifier | 1 8JMKD3MGP5W/3C9JGTQ | |||
| Group | 1 DSR-OBT-INPE-MCTI-GOV-BR 2 3 SER-SRE-SPG-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Universidade de São Paulo (USP) 3 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 dilce.rossetti@inpe.br 2 eder.molina@iag.usp.br 3 edipocremon@yahoo.com.br | |||
| Journal | Journal of South American Earth Sciences | |||
| Volume | 69 | |||
| Pages | 1-10 | |||
| Secondary Mark | A1_INTERDISCIPLINAR A1_GEOGRAFIA A2_GEOCIÊNCIAS A2_ENGENHARIAS_III A2_CIÊNCIAS_AGRÁRIAS_I B1_ODONTOLOGIA B1_MEDICINA_II B1_CIÊNCIAS_AMBIENTAIS B1_BIODIVERSIDADE B1_ANTROPOLOGIA_/_ARQUEOLOGIA B2_QUÍMICA B2_MATERIAIS B2_CIÊNCIAS_BIOLÓGICAS_I B3_ASTRONOMIA_/_FÍSICA C_ENGENHARIAS_II | |||
| History (UTC) | 2016-04-11 12:55:43 :: simone -> administrator :: 2016-07-04 12:29:59 :: administrator -> simone :: 2016 2016-07-08 16:35:21 :: simone -> administrator :: 2016 2018-06-04 02:40:41 :: administrator -> simone :: 2016 | |||
| 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 | Gravity anomaly Morphology Northern Amazonia Pleistocene-Holocene Sedimentary basin | |||
| Abstract | The Pantanal Setentrional (PS) is the second largest wetland in Brazil, occurring in a region of northern Amazonia previously regarded as part of the intracratonic Solimões Basin. However, while Paleozoic to Neogene strata are recorded in this basin, the PS constitutes a broad region with an expressive record of only Late Pleistocene and Holocene deposits. The hypothesis investigated in the present work is if these younger deposits were formed within a sedimentary basin having a geological history separated from the Solimões Basin. Due to the location in a remote region of low accessibility, the sedimentary fill of the PS wetland remains largely unknown in subsurface. In the present work, we combine geomorphological and gravity data acquired on a global basis by several satellite gravity missions to approach the geological context of this region. The results revealed a wetland characterized in surface by a low-lying terrain with wedge shape and concave-up geometry that is in sharp contact with highland areas of Precambrian rocks of the Guiana Shield. Such contact is defined by a series of mainly NE- or NW-trending straight lineaments that eventually extend into both the Guiana Shield and the PS wetland. Also of relevance is that a great part of the PS wetland sedimentary cover consists of dominantly sandy deposits preserved as residual paleo-landforms with triangular shapes previously related to megafan depositional systems. These are distributed radially at the northern margin of the PS, with axis toward basement rocks and fringes toward the wetland's center, the latter containing the largest megafan landform. The analysis of gravity anomaly data revealed a main NNE-trending chain ~500 km in length defined by high gravity values (i.e., up to 60 mGal); these are bounded by negative anomalies as low as -90 mGal. The chain with positive gravity anomaly marks the center of a subsiding area having a geological evolution that differs from the adjacent intracratonic Solimões Basin. Deep rifting associated with the rise of high-density material from the mantle in replacement of low-density continental crust is hypothesized as the most likely load-driving mechanism responsible for the subsidence of the PS sedimentary basin. Alternatively, this might be a shallow basin formed during the Late Quaternary due to mild subsidence of a high-density basement. This process would have been caused by tectonic reactivations of NE-trending strike-slip faults along a zone of low elastic thickness of the lithosphere that characterizes this region of South American platform. | |||
| Area | SRE | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Genesis of the... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > SER > Genesis of the... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| Language | en | |||
| Target File | Rossetti_genesis.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Archiving Policy | denypublisher denyfinaldraft24 | |||
| Read Permission | deny from all and allow from 150.163 | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Linking | 8JMKD3MGP3W34P/3LSDRJB | |||
| Mirror Repository | urlib.net/www/2011/03.29.20.55 | |||
| Next Higher Units | 8JMKD3MGPCW/3ER446E 8JMKD3MGPCW/3F3NU5S | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.44.37 2 sid.inpe.br/bibdigital/2013/10.18.22.34 1 | |||
| Dissemination | WEBSCI; PORTALCAPES; COMPENDEX; SCOPUS. | |||
| Host Collection | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark nextedition notes number orcid parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||