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1. Identity statement
Reference TypeJournal Article
Siteplutao.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
IdentifierJ8LNKAN8RW/3AFLCQQ
Repositorydpi.inpe.br/plutao/2011/09.22.18.57.58   (restricted access)
Last Update2011:10.13.13.43.45 (UTC) administrator
Metadata Repositorydpi.inpe.br/plutao/2011/09.22.18.57.59
Metadata Last Update2018:06.05.00.01.29 (UTC) administrator
DOI10.1007/s10933-011-9538-5
ISSN0921-2728
Labellattes: 3368934680028882 4 McGlueSCZTEPSCA:2011:ASyFr
Citation KeyMcGlueSCZTEPSCA:2011:SyLaFl
TitleLimnogeology in Brazil's “forgotten wilderness“: a synthesis from the large floodplain lakes of the Pantanal
Year2011
MonthAug.
Access Date2024, May 05
Secondary TypePRE PI
Number of Files1
Size1071 KiB
2. Context
Author 1 McGlue, Michael M.
 2 Silva, Aguinaldo
 3 Corradini, Fabrício A.
 4 Zani, Hiran
 5 Trees, Mark A.
 6 Ellis, Geoffrey S.
 7 Parolin, Mauro
 8 Swarzenski, Peter W.
 9 Cohen, Andrew S.
10 Assine, Mario L.
Group 1
 2
 3
 4 DSR-OBT-INPE-MCT-BR
Affiliation 1 Department of Geosciences, The University of Arizona, 1040 East 4th Street, Tucson, AZ, 85721, USA
 2 Departamento de Ciências do Ambiente, Universidade Federal de Mato Grosso do Sul—UFMS-CPAN, Av. Rio Branco, 1270, Corumbá, MS, 79304-902, Brazil
 3 Faculdade de Geografia, Universidade Federal do Pará-UFPA, Folha 31, Quadra 7, Lote Especial S/N, Marabá, PA, 68501-970, Brazil
 4 Instituto Nacional de Pesquisas Espaciais (INPE)
 5 Department of Geosciences, The University of Arizona, 1040 East 4th Street, Tucson, AZ, 85721, USA
 6 Energy Resources Program, U.S. Geological Survey, Denver, CO, USA
 7 Faculdade Estadual de Ciências e Letras de Campo Mourão, Av. Comendador Norberto Marcondes, 733, Campo Mourão, PR, 87303-100, Brazil
 8 U.S. Geological Survey, Santa Cruz, CA, USA
 9 Department of Geosciences, The University of Arizona, 1040 East 4th Street, Tucson, AZ, 85721, USA
10 Departamento de Geologia Aplicada—IGCE, Universidade Estadual Paulista—UNESP/Campus Rio Claro, Av. 24-A, 1515, Rio Claro, SP
Author e-Mail Address 1
 2
 3
 4 hzani@dsr.inpe.br
e-Mail Addresshzani@dsr.inpe.br
JournalJournal of Paleolimnology
Volume46
Number2
Pages273-289
Secondary MarkA2_ECOLOGIA_E_MEIO_AMBIENTE B1_QUÍMICA
History (UTC)2011-09-23 14:11:20 :: lattes -> secretaria.cpa@dir.inpe.br :: 2011
2011-11-04 12:32:34 :: secretaria.cpa@dir.inpe.br -> administrator :: 2011
2013-03-11 18:39:16 :: administrator -> banon :: 2011
2013-08-04 02:07:07 :: banon -> administrator :: 2011
2018-06-05 00:01:29 :: administrator -> marciana :: 2011
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
KeywordsPantanal
Limnogeology
Floodplain lakes
Tropical wetlands
Sedimentary organic matter
Freshwater sponges. LACUSTRINE ORGANIC-MATTER
FRESH-WATER SPONGES
MATO-GROSSO
AFRICAN RIFT
SEDIMENTS
RIVER
INDICATORS
WETLAND
CARBON
DELTA
AbstractSediment records from floodplain lakes have a large and commonly untapped potential for inferring wetland response to global change. The Brazilian Pantanal is a vast, seasonally inundated savanna floodplain system controlled by the flood pulse of the Upper Paraguay River. Little is known, however, about how floodplain lakes within the Pantanal act as sedimentary basins, or what influence hydroclimatic variables exert on limnogeological processes. This knowledge gap was addressed through an actualistic analysis of three large, shallow (<5 m) floodplain lakes in the western Pantanal: Lagoa Gaíva, Lagoa Mandioré and Baia Vermelha. The lakes are dilute (CO3 2− > Si4+ > Ca2+), mildly alkaline, freshwater systems, the chemistries and morphometrics of which evolve with seasonal flooding. Lake sills are bathymetric shoals marked by siliciclastic fans and marsh vegetation. Flows at the sills likely undergo seasonal reversals with the changing stage of the Upper Paraguay River. Deposition in deeper waters, typically encountered in proximity to margin-coincident topography, is dominated by reduced silty-clays with abundant siliceous microfossils and organic matter. Stable isotopes of carbon and nitrogen, plus hydrogen index measured on bulk organic matter, suggest that contributions from algae (including cyanobacteria) and other C3-vegetation dominate in these environments. The presence of lotic sponge spicules, together with patterns of terrigenous sand deposition and geochemical indicators of productivity, points to the importance of the flood pulse for sediment and nutrient delivery to the lakes. Flood-pulse plumes, waves and bioturbation likewise affect the continuity of sedimentation. Short-lived radioisotopes indicate rates of 0.11-0.24 cm year−1 at sites of uninterrupted deposition. A conceptual facies model, developed from insights gained from modern seasonal processes, can be used to predict limnogeological change when the lakes become isolated on the floodplain or during intervals associated with a strengthened flood pulse. Amplification of the seasonal cycle over longer time scales suggests carbonate, sandy lowstand fan and terrestrial organic matter deposition during arid periods, whereas deposition of lotic sponges, mixed aquatic organic matter, and highstand deltas characterizes wet intervals. The results hold substantial value for interpreting paleolimnological records from floodplain lakes linked to large tropical rivers with annual flooding cycles.
AreaSRE
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSR > Limnogeology in Brazil's...
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4. Conditions of access and use
Languageen
Target Filemcglue.pdf
User Groupadministrator
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Visibilityshown
Archiving Policydenypublisher denyfinaldraft12
Read Permissiondeny from all and allow from 150.163
Update Permissionnot transferred
5. Allied materials
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Next Higher Units8JMKD3MGPCW/3ER446E
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Host Collectiondpi.inpe.br/plutao@80/2008/08.19.15.01
6. Notes
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