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1. Identity statement
Reference TypeJournal Article
Sitemtc-m21c.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34R/42LJKN5
Repositorysid.inpe.br/mtc-m21c/2020/06.12.13.53   (restricted access)
Last Update2020:06.12.13.56.19 (UTC) simone
Metadata Repositorysid.inpe.br/mtc-m21c/2020/06.12.13.53.42
Metadata Last Update2022:01.04.01.35.12 (UTC) administrator
DOI10.1016/j.jsames.2020.102553
ISSN0895-9811
Citation KeyAlvesRossVale:2020:DeNeLo
TitleDetecting neotectonics in the lowlands of Amazonia through the analysis of river long profiles
Year2020
MonthJune
Access Date2024, May 22
Secondary TypePRE PI
Number of Files1
Size5247 KiB
2. Context
Author1 Alves, Fábio Corrêa
2 Rossetti, Dilce de Fátima
3 Valeriano, Márcio de Morisson
Resume Identifier1
2 8JMKD3MGP5W/3C9JGTQ
3 8JMKD3MGP5W/3C9JHPL
Group1 SER-SRE-SESPG-INPE-MCTIC-GOV-BR
2 DIDSR-CGOBT-INPE-MCTIC-GOV-BR
3 DIDSR-CGOBT-INPE-MCTIC-GOV-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Instituto Nacional de Pesquisas Espaciais (INPE)
Author e-Mail Address1 fabio.alves@inpe.br
2 dilce.rossetti@inpe.br
3 marcio.valeriano@inpe.br
JournalJournal of the South American Earth Sciences
Volume100
Pagese102553
History (UTC)2020-06-12 13:56:20 :: simone -> administrator :: 2020
2022-01-04 01:35:12 :: administrator -> simone :: 2020
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
KeywordsDigital elevation model
Remote sensing
Transient landscape
Normalized steepness index
Knickpoint
AbstractThere has been a considerable number of studies focusing on the analysis of river long profiles based on stream power incision models aiming to detect areas affected by neotectonics. Most of these studies have successfully uncovered active tectonics in mountainous landscapes, with some examples in areas of low reliefs around the globe. However, this kind of investigation has rarely been used in large tropical lowlands, such as the Amazonian lowlands, where the application of river long profiles is still challenging. The main aim of the present work was to test the functionality of methods based on river profiles to detect neotectonic reliefs in lowland landscapes. The Negro River basin was selected for this investigation, assuming the several indications of tectonic activity during the late Pleistocene and Holocene. We tested the normalized channel steepness index (k(sn)), with the identification of knickpoints and interpretation of swath profiles, computed from the 30 m digital elevation model provided by the Shuttle Radar Topography Mission. The results showed streams with profiles bounded by a set of knickpoints represented by very low k(sn) values in the right (average k(sn) = 8) and left (average k(sn) = 10) margins of the Negro River. These values contrast with the high range of k(sn) values generally found for rivers of tectonically active mountainous landscapes. Even with low values, we verified that a slight increase in k(sn) values was enough to detect transient rivers related with strike slip faults in Amazonia lowlands. The swath profiles also showed sectors on relief compatible with changes in the base level of the tributaries, with the record of knickpoints and an increase in k(sn) values. The experimental results obtained in this work motivate further quantitative investigation in Amazonian lowlands by testing geological data with new robust techniques from river profiles.
AreaSRE
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4. Conditions of access and use
Languageen
Target Filealves_detecting.pdf
User Groupsimone
Reader Groupadministrator
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Visibilityshown
Archiving Policydenypublisher denyfinaldraft24
Read Permissiondeny from all and allow from 150.163
Update Permissionnot transferred
5. Allied materials
Next Higher Units8JMKD3MGPCW/3ER446E
8JMKD3MGPCW/3F3NU5S
Citing Item Listsid.inpe.br/mtc-m21/2012/07.13.14.44.37 5
sid.inpe.br/mtc-m21/2012/07.13.14.54.54 1
DisseminationSCOPUS
Host Collectionurlib.net/www/2017/11.22.19.04
6. Notes
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