Sponge spicules as indicators of paleoenvironmental changes in island deposits – Upper Paraná River, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.palaeo.2019.109391 http://hdl.handle.net/11449/198053 |
Resumo: | Sediments of fluvial islands are important records for paleoenvironmental and paleoclimatic reconstruction, especially those related to the late Pleistocene and Holocene. The Upper Paraná River (UPR) has numerous paleoenvironmental studies using different approaches – e.g.: sedimentary facies analysis, geomorphological evolution, and evolution of sandbars. This is the first study to use freshwater sponge spicules preserved in fluvial sediments to characterize the environments and processes involved in the island formation. Sponge spicules analysis can be used as a complement of sedimentary facies. We studied two islands that, despite their geographical proximity and similarity, had significant differences in their paleoenvironmental evolution. We identified nineteen species of sponges of lotic and lentic habitats. The sediments from Bandeirantes Island have highly fragmented sponge spicules and species of lotic habitats from the late Pleistocene (14,620 cal yr BP). In addition, from 7380 to 1220 cal yr BP, the occurrence of spongiofacies of Tubella variabilis and Radiospongilla amazonensis indicates a lentic environment in the island. These spongiofacies suggests that Bandeirantes Island had an island-lake environment in the mid-Holocene. After 1220 cal yr BP, occurred the lake colmatation by overbank river flow. However, the sediments from Grande Island only contain lotic sponge spicule fragments. Furthermore, the fragmentation of sponge spicules is associated with transport and remobilization during the Late Pleistocene (12,430 cal yr BP). Finally, there was intermittent deposition and phases of removal of the material due to fluvial erosion after 2570 cal yr BP with rare and dispersed occurrences of freshwater sponges associated with sedimentary aggradation by overbank flow. |
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Sponge spicules as indicators of paleoenvironmental changes in island deposits – Upper Paraná River, BrazilAnabranching channelBiological indicatorsPaleoecologicalSpongiofaciesSediments of fluvial islands are important records for paleoenvironmental and paleoclimatic reconstruction, especially those related to the late Pleistocene and Holocene. The Upper Paraná River (UPR) has numerous paleoenvironmental studies using different approaches – e.g.: sedimentary facies analysis, geomorphological evolution, and evolution of sandbars. This is the first study to use freshwater sponge spicules preserved in fluvial sediments to characterize the environments and processes involved in the island formation. Sponge spicules analysis can be used as a complement of sedimentary facies. We studied two islands that, despite their geographical proximity and similarity, had significant differences in their paleoenvironmental evolution. We identified nineteen species of sponges of lotic and lentic habitats. The sediments from Bandeirantes Island have highly fragmented sponge spicules and species of lotic habitats from the late Pleistocene (14,620 cal yr BP). In addition, from 7380 to 1220 cal yr BP, the occurrence of spongiofacies of Tubella variabilis and Radiospongilla amazonensis indicates a lentic environment in the island. These spongiofacies suggests that Bandeirantes Island had an island-lake environment in the mid-Holocene. After 1220 cal yr BP, occurred the lake colmatation by overbank river flow. However, the sediments from Grande Island only contain lotic sponge spicule fragments. Furthermore, the fragmentation of sponge spicules is associated with transport and remobilization during the Late Pleistocene (12,430 cal yr BP). Finally, there was intermittent deposition and phases of removal of the material due to fluvial erosion after 2570 cal yr BP with rare and dispersed occurrences of freshwater sponges associated with sedimentary aggradation by overbank flow.Graduate Program in Inland Water Ecology - PEA State University of MaringáFederal University of Mato Grosso Do Sul-Campus Três LagoasLaboratory of Paleoenvironmental Studies State University of ParanáDepartment Geography State University of Western ParanáGraduate Program in Geography State University of MaringáFederal Institute of Paraná (IFPR) Assis ChateaubriandLaboratory of the Geoscience Applied Center UNESPetro São Paulo State University (UNESP)Laboratory of the Geoscience Applied Center UNESPetro São Paulo State University (UNESP)State University of MaringáFederal University of Mato Grosso Do Sul-Campus Três LagoasState University of ParanáState University of Western ParanáAssis ChateaubriandUniversidade Estadual Paulista (Unesp)Rasbold, Giliane GessicaStevaux, José CândidoParolin, MauroLeli, Isabel TeresinhaLuz, Leandro DomingosGuerreiro, Renato LadaBrito, Hermes Dias [UNESP]2020-12-12T00:57:42Z2020-12-12T00:57:42Z2019-12-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.palaeo.2019.109391Palaeogeography, Palaeoclimatology, Palaeoecology, v. 536.0031-0182http://hdl.handle.net/11449/19805310.1016/j.palaeo.2019.1093912-s2.0-85074005542Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPalaeogeography, Palaeoclimatology, Palaeoecologyinfo:eu-repo/semantics/openAccess2021-10-23T08:05:29Zoai:repositorio.unesp.br:11449/198053Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T08:05:29Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Sponge spicules as indicators of paleoenvironmental changes in island deposits – Upper Paraná River, Brazil |
title |
Sponge spicules as indicators of paleoenvironmental changes in island deposits – Upper Paraná River, Brazil |
spellingShingle |
Sponge spicules as indicators of paleoenvironmental changes in island deposits – Upper Paraná River, Brazil Rasbold, Giliane Gessica Anabranching channel Biological indicators Paleoecological Spongiofacies |
title_short |
Sponge spicules as indicators of paleoenvironmental changes in island deposits – Upper Paraná River, Brazil |
title_full |
Sponge spicules as indicators of paleoenvironmental changes in island deposits – Upper Paraná River, Brazil |
title_fullStr |
Sponge spicules as indicators of paleoenvironmental changes in island deposits – Upper Paraná River, Brazil |
title_full_unstemmed |
Sponge spicules as indicators of paleoenvironmental changes in island deposits – Upper Paraná River, Brazil |
title_sort |
Sponge spicules as indicators of paleoenvironmental changes in island deposits – Upper Paraná River, Brazil |
author |
Rasbold, Giliane Gessica |
author_facet |
Rasbold, Giliane Gessica Stevaux, José Cândido Parolin, Mauro Leli, Isabel Teresinha Luz, Leandro Domingos Guerreiro, Renato Lada Brito, Hermes Dias [UNESP] |
author_role |
author |
author2 |
Stevaux, José Cândido Parolin, Mauro Leli, Isabel Teresinha Luz, Leandro Domingos Guerreiro, Renato Lada Brito, Hermes Dias [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
State University of Maringá Federal University of Mato Grosso Do Sul-Campus Três Lagoas State University of Paraná State University of Western Paraná Assis Chateaubriand Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Rasbold, Giliane Gessica Stevaux, José Cândido Parolin, Mauro Leli, Isabel Teresinha Luz, Leandro Domingos Guerreiro, Renato Lada Brito, Hermes Dias [UNESP] |
dc.subject.por.fl_str_mv |
Anabranching channel Biological indicators Paleoecological Spongiofacies |
topic |
Anabranching channel Biological indicators Paleoecological Spongiofacies |
description |
Sediments of fluvial islands are important records for paleoenvironmental and paleoclimatic reconstruction, especially those related to the late Pleistocene and Holocene. The Upper Paraná River (UPR) has numerous paleoenvironmental studies using different approaches – e.g.: sedimentary facies analysis, geomorphological evolution, and evolution of sandbars. This is the first study to use freshwater sponge spicules preserved in fluvial sediments to characterize the environments and processes involved in the island formation. Sponge spicules analysis can be used as a complement of sedimentary facies. We studied two islands that, despite their geographical proximity and similarity, had significant differences in their paleoenvironmental evolution. We identified nineteen species of sponges of lotic and lentic habitats. The sediments from Bandeirantes Island have highly fragmented sponge spicules and species of lotic habitats from the late Pleistocene (14,620 cal yr BP). In addition, from 7380 to 1220 cal yr BP, the occurrence of spongiofacies of Tubella variabilis and Radiospongilla amazonensis indicates a lentic environment in the island. These spongiofacies suggests that Bandeirantes Island had an island-lake environment in the mid-Holocene. After 1220 cal yr BP, occurred the lake colmatation by overbank river flow. However, the sediments from Grande Island only contain lotic sponge spicule fragments. Furthermore, the fragmentation of sponge spicules is associated with transport and remobilization during the Late Pleistocene (12,430 cal yr BP). Finally, there was intermittent deposition and phases of removal of the material due to fluvial erosion after 2570 cal yr BP with rare and dispersed occurrences of freshwater sponges associated with sedimentary aggradation by overbank flow. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-12-15 2020-12-12T00:57:42Z 2020-12-12T00:57:42Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.palaeo.2019.109391 Palaeogeography, Palaeoclimatology, Palaeoecology, v. 536. 0031-0182 http://hdl.handle.net/11449/198053 10.1016/j.palaeo.2019.109391 2-s2.0-85074005542 |
url |
http://dx.doi.org/10.1016/j.palaeo.2019.109391 http://hdl.handle.net/11449/198053 |
identifier_str_mv |
Palaeogeography, Palaeoclimatology, Palaeoecology, v. 536. 0031-0182 10.1016/j.palaeo.2019.109391 2-s2.0-85074005542 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Palaeogeography, Palaeoclimatology, Palaeoecology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803649612955779072 |