Evolução paleoambiental holocênica da porção nordeste do Estado de São Paulo, Brasil

Souza, Melina Mara de; Ricardi-Branco, Frésia; Jasper, André; Pessenda, Luiz Carlos Ruis

doi:10.4072/rbp.2013.2.10

Cited by 16 publications

(27 citation statements)

References 10 publications

(18 reference statements)

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“…The episode likely happens due to the expansion of Riparian Forest, under warmer and moister climatic conditions. It is in agreement with other pollen records of São Paulo State, in which an increase in moisture rates was observed at 2,189 yr BP for JEE (Souza et al 2013), and at 3,500-1,950 yr BP for Paraíba do Sul River Valley (Garcia et al 2004).…”

Section: Between 13 and 4 Kyr Bpsupporting

confidence: 92%

“…The hiatus (Figs. 2 and 5) at 13 and 4 kyr BP found at Santa Elisa was also observed in the Northwest of São Paulo State at JEE, on a river terrace of Mogi Guaçu River (Souza et al 2013). For the JEE record, the gap ranges from 10,192 to 2,183 14 C yr BP, and it is interpreted as an absence of sedimentation or removal of sediments previously deposited by erosion.…”

Section: Between 13 and 4 Kyr Bpmentioning

confidence: 62%

“…During the Holocene, the pollen record of Jacareí/SP showed cool and humid climatic conditions between 9,700 and 8,240 cal yr BP, followed by warmer episodes between 8,240 and 3,500 cal yr BP, and then back to cooler conditions between 3,500 and 1,950 cal yr BP (Garcia et al 2004). The pollen analyses of a fluvial terrace of Mogi Guaçu River located in Jataí Ecological Station ( JEE) of the Forestry Institute, State of São Paulo, show drier conditions at the beginning of Holocene characterized by open-field vegetation with fire incidence (Souza et al 2013), followed by an expansion of the Riparian Forest of 2,183 cal yr. BP, as well as installation of humid climate similar to the current one (Souza et al 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Most palynological studies in Southeastern Brazil were concentrated in mountainous and coastal zones, specifically State of São Paulo, with the exception of JEE (Souza et al 2013). Our research aims to provide new paleo-ecological data inland São Paulo related to Riparian Forest located within the Cerrado/Seasonal Semi-deciduous ecotone forest.…”

Section: Introductionmentioning

confidence: 99%

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Vegetation and climate changes in the forest of Campinas, São Paulo State, Brazil, during the last 25,000 cal yr BP

et al. 2019

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A paleoenvironmental reconstruction was performed in a Riparian Forest near Campinas to improve knowledge of paleoclimate and paleoenvironment in the State of São Paulo, Brazil. A sediment core of 182 cm depth was collected in a swamp located within a Cerrado/Seasonal Semi-deciduous ecotone forest. The chronological frame is given by eight radiocarbon dating methods. Pollen and stable isotope analyses (δ 13 C and δ 15 N) were performed all along the core. Modern pollen rain is based on five surface samples collected along the Riparian Forest. Results show a sequence of changes in vegetation and climate between 25 and 13 cal kyr before present (BP), and from 4 cal kyr BP to the present time, with a hiatus between 11 and 4 kyr cal BP. Drier climatic conditions characterized the late Pleistocene and early Holocene, although they had moisture peaks able to maintain an open forest. The Riparian Forest became fully installed from 4 cal kyr BP onward. Our results are in agreement with other regional studies and contribute to build a regional frame for past climatic conditions at the latitude of São Paulo.

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Section: Between 13 and 4 Kyr Bpsupporting

confidence: 92%

Section: Between 13 and 4 Kyr Bpmentioning

confidence: 62%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Vegetation and climate changes in the forest of Campinas, São Paulo State, Brazil, during the last 25,000 cal yr BP

et al. 2019

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“…Há poucos estudos relacionados ao desenvolvimento desse bioma durante o Cenozóico para o estado de São Paulo (Gouveia et al, 1999;Souza et al, 2013), a maioria dos trabalhos são desenvolvidos na Região do Brasil (Ribeiro and Walter, 2008;Salgado-Labouriau, 1997;Barberi et al, 2000;Ledru et al, 2001).…”

Section: Introductionunclassified

Planície Aluvionar Do Rio Mogi-Guaçu, Sp, Brasil – As Relações Ambientais Entre O Ambiente Aquatico E a Análise Climática Baseada Em Assembléias De Folhas

et al. 2017

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Resumo. O estudo ambiental envolveu a dinâmica do ambiente subaquático e a análise climática de morfologias de folhas em áreas selecionadas de meandros abandonados, com diferentes etapas geomorfológicas de deposição na planície fluvial do rio Mogi Guaçu. A área é uma transição do Cerrado e Mata Atlântica, bem preservada e localizada na Estação Ecológica de Mogi Guaçu (EEcMG). Em dique marginais ao rio, a floresta reflete a temperatura acuradamente, mas não a chuva, e isto pode ser explicado pela influência da água subterrânea, tipo de solo e temperatura. Nas margens internas da curvatura dos meandros, as assembleias de folhas refletem melhor as chuvas que temperatura, desde que esta última possa ser mudada pela proximidade de corpos de água (descarga de água subterrânea e proximidade do rio ou meandro).Abstract. The environmental study involved the dynamics of subaquatic environment and climatic analysis of leaf morphologies in selected meander bends, with different geomorphological step of deposition in the Mogi Guaçu River fluvial plain located in the northeastern portion of Sao Paulo State, Brazil. The area is a transition of Cerrado (Tropical Savanna) and Mata Atlantica (Atlantic forest), well preserved and located to the Ecological Station of Mogi-Guaçu (EEcMG). At the levee, the forest reflects the temperature accurately, but not the rainfall, and it can be explained by the influence of groundwater, type of soil, and temperature. In the inner bank of meander bend, the assemblages of leaves better reflect rainfall than temperature, since the latter parameter can be changed by the proximity of water bodies (groundwater discharge and proximity to the river or meander).Palavras-Chave -assembleia de folhas, água subterrânea, aquífero freático.

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Early anthropic occupation and geomorphological changes in South America: human–environment interactions and OSL data from the Rincão I site, southeastern Brazil

Cheliz¹,

Giannini

Sousa

et al. 2023

J Quaternary Science

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This article aims to refine the description of the artefacts and the geomorphological, geological, pedological and chronological (optically stimulated luminescence (OSL) analyses of sedimentary deposits) characterisation of the Rincão I site (southeastern Brazil) to contribute to the understanding of early human–environment interactions. The archaeological site occupation took place on hillslopes truncated by the Mogi‐Guaçu River's lateral (~1200 m) and vertical (~5 m) movements during the Late Quaternary, in an area where in situ bedrock outcrops are uncommon. This geological context favoured human groups simultaneously having access to the resources provided by the alluvial plain and hillslopes. Here we describe how about three hundred lithic artefacts are associated with soils that originated from sandy colluvium with OSL ages between 20.3 and 5.5 thousand years. These ages are consistent with the local palaeopedological and geomorphological contexts of landscape changes, and partly controversial from the perspective of models currently in vogue for the human occupation of southeastern Brazil. The vestiges of past human presence amid the hillslope sandy colluvium deposits include: 1) a set of flakes and formal artefacts (one stemmed point and three convex artefacts) made of sandstone obtained from hillslopes near (<10 km) the site; and 2) predominant detritus and flakes of quartz and flint obtained mostly from the adjacent (<1.5 km) alluvial plain, linked to flaking sequences other than those of the formal artefacts. Only quartz artefacts were found in the lower levels of the site stratigraphy, whereas in the intermediate and upper levels quartz, flint and sandstone artefacts were found, suggesting that there were changes in the raw materials used for flaking over time. The formal artefacts from the site have technological attributes like the ones observed in assemblages associated with a previously known lithic industry (Rioclarense), but a different pattern of choice of raw materials. This suggests that technical standards underwent a process of adaptation to the environmental particularities surrounding the Rincão I site.

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Evolução paleoambiental holocênica da porção nordeste do Estado de São Paulo, Brasil

Cited by 16 publications

References 10 publications

Vegetation and climate changes in the forest of Campinas, São Paulo State, Brazil, during the last 25,000 cal yr BP

Vegetation and climate changes in the forest of Campinas, São Paulo State, Brazil, during the last 25,000 cal yr BP

Planície Aluvionar Do Rio Mogi-Guaçu, Sp, Brasil – As Relações Ambientais Entre O Ambiente Aquatico E a Análise Climática Baseada Em Assembléias De Folhas

Early anthropic occupation and geomorphological changes in South America: human–environment interactions and OSL data from the Rincão I site, southeastern Brazil

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