The ITRAX core scanner, a useful tool to distinguish anthropic<i>vs.</i>climatic influences in lagoon of Aveiro (N Portugal)

Martins, V.; Dias, João Alveirinho; Bernardes, Cristina; Rubio, B.; Bernabéu, Ana M.; Rey, D.; Soares, António M. Monge; Sobrinho, Frederico; Laut, Lázaro M.; Frontalini, Fabrizio; Terroso, Denise; Miranda, Paulo; Fernández-Fernández, Sandra; Rodrigues, Maria Antonieta da Conceição; Figueira, Rubens César Lopes; Sousa, Silvia Helena de Mello e; Amaral, Paula; Mahiques, Michel Michaelovitch de; Rocha, Fernando

doi:10.2112/si65-013.1

Cited by 5 publications

(4 citation statements)

References 12 publications

(16 reference statements)

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“…Elements' contents are expressed as peak areas (the area integrals of the elements' characteristic peaks presented in each spectrum) that are proportional to element concentrations in the sediment. Despite the semi-quantitative nature of the Itrax data, several authors have demonstrated the ability of this kind of scanners to detect metal pollution in sediments, even at low concentrations [16,[24][25][26][27]. However, we showthe utility of the Itrax for monitoring pollutionover time and as a complementary tool to support radionuclide analyses.…”

Section: Introductionmentioning

confidence: 71%

Monitoring and Evolution of Highly Lead Polluted Coastal Environments: A Case Study in San Simón Bay (NW Spain)

Álvarez-Iglesias¹,

Rodríguez-Germade²,

Rubio³

et al. 2016

Int J Earth Environ Sci

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San Simón Bay (inner Ría de Vigo, NW Spain) is a well-known polluted area because of its high Pb concentrations caused by waste discharges from a ceramic factory. The present study is focused on the historical and diagenetic monitoring of Pb pollution in this Bay based on sediment and pore water analyses of two cores collected in October 2010 adjacent to the factory using different techniques. A chronological framework was constructed based on 137 Cs and 210 Pb dating. Lead stable isotope ratios confirmed that the ceramic factory is still the main Pb source despite its closing in 2001. The historical monitoring of Pb pollution included Itrax TM Core Scanner (Itrax) analyses on the sedimentary record and the comparison with previous geochemical studies. The location of Pb maxima values in the cores allowed the estimation of sedimentation rates which were similar to those calculated from radionuclide dating. Moreover, Itrax analyses supported the results of the other techniques, but providing results with a higher resolution, and providing information about variations in cores composition that could affect radionuclide activities. The short-time interval required for obtaining the Itrax results and the high-resolution of the data, among other applications of this scanner, confirmed its importance as a complementary tool for Environmental coastal management.

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Section: Introductionmentioning

confidence: 71%

Monitoring and Evolution of Highly Lead Polluted Coastal Environments: A Case Study in San Simón Bay (NW Spain)

Álvarez-Iglesias¹,

Rodríguez-Germade²,

Rubio³

et al. 2016

Int J Earth Environ Sci

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“…At the upper slope of Buenos Aires Province, Ca in contouritic deposits would explain biogenic supports while Fe the terrigenous inputs (Voigt et al, 2013). Dealing with modern estuaries (Aveiro coastal lagoon, Portugal), the lithogenic origin was related to the content of Al, Fe, Ti, Si, Rb, Ba, K, Cl, Br, S, Mn and Zr (Martins et al, 2013). As this coast of Portugal had mining activities, the contents of Pb, Cr, V, Ni, As, Cu and W was explained by human influence before 1920.…”

Section: Discussionmentioning

confidence: 99%

“…As this coast of Portugal had mining activities, the contents of Pb, Cr, V, Ni, As, Cu and W was explained by human influence before 1920. The increase in the ratio between Si/Al was interpreted as a higher input in quartz (Martins et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Avulsion at a drift-dominated mesotidal estuary: The Chubut River outlet, Patagonia, Argentina

Isla

Espinosa

Armesto

et al. 2015

Journal of Hydrology

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“…Actually, the definition of the base of this new epoch is, somehow, still a matter of debate, since the geological/ geochemical evidence of the end of the Holocene can be interpreted in different ways (Steffen et al, 2007;Leorri et al, 2014;Irabien et al, 2015;Zalasiewicz et al, 2015;Waters et al, 2016). It is worth observing that in different coastal and marine areas the evidence goes back to pre-Industrial ages (Crutzen and Steffen, 2003;Martins et al, 2013;Leorri et al, 2014;Irabien et al, 2015).In this paper, we present a brief review of the geological imprint of the human occupation of the coast of São Paulo (Southeast Brazil), an area of a relatively recent historical occupation, caused by different economic activities, but with geological evidence of pre-Columbian settlings. The main aim of this work is to recognize when, why and how the geological records show evidence of the beginning of the Anthropocene in this coastal area.…”

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confidence: 99%

From sambaquis (shell mounds) to plastic debris: a summary of the geological imprint of human occupation in the coast of São Paulo (Southeast Brazil)

Affonso

Mahiques

Ferreira

et al. 2018

ABEQUA

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In this work, we present a brief revision of the geological evidence of human activities in the coast of São Paulo (Southeast Brazil), from pre-historical times to the present. We analyze case studies in different sectors of the coast, identifying the main historical causes that resulted in environmental changes with their consequent imprint in the sedimentary column. There was a south-to-north trend in the occupation at the colonization period (1500 onwards), essentially determined by differences in the geomorphology of the area. Finally, the accumulation of artificial radionuclides and plastic debris in the sediments is discussed. Keywords: Human occupation; coastline; SE Brazil ResumoNeste trabalho, apresentamos uma breve revisão das evidências geológicas das atividades humanas no litoral de São Paulo (Sudeste do Brasil), desde os tempos pré-históricos até o presente. Analisamos estudos de caso em diferentes setores da costa, identificando as principais causas históricas que resultaram em mudanças ambientais com sua consequente impressão na coluna sedimentar. Havia uma tendência sul-norte na ocupação no período de colonização (1500 em diante), essencialmente determinada por diferenças na geomorfologia da área. Finalmente, o acúmulo de radionuclídeos artificiais e detritos plásticos nos sedimentos é discutido. Palavras-chave: Ocupação humana; litoral; SE do Brasil IntroductionThe definition of the beginning of the Anthropocene in coastal areas is undoubtedly chronologically much younger than the human occupation of the coasts itself (Menzel, 1959;Kaplan, 1980;Stringer, 2000). Actually, the definition of the base of this new epoch is, somehow, still a matter of debate, since the geological/ geochemical evidence of the end of the Holocene can be interpreted in different ways (Steffen et al., 2007;Leorri et al., 2014;Irabien et al., 2015;Zalasiewicz et al., 2015;Waters et al., 2016). It is worth observing that in different coastal and marine areas the evidence goes back to pre-Industrial ages (Crutzen and Steffen, 2003;Martins et al., 2013;Leorri et al., 2014;Irabien et al., 2015).In this paper, we present a brief review of the geological imprint of the human occupation of the coast of São Paulo (Southeast Brazil), an area of a relatively recent historical occupation, caused by different economic activities, but with geological evidence of pre-Columbian settlings. The main aim of this work is to recognize when, why and how the geological records show evidence of the beginning of the Anthropocene in this coastal area. Area of StudyThe area of study corresponds to the coast of São Paulo, a part of the arc-shaped section of the Brazilian margin known as São Paulo Bight (Zembruscki, 1979) (figure 1). This coastal sector has been divided into different forms. According to Muehe (1998), it is divided into two different compartments, the Northern Crystalline Scarps Littoral and the Coastal Plains and Estuaries Littoral, the difference between them being essentially related to the position of the Serra do Mar mou...

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The ITRAX core scanner, a useful tool to distinguish anthropicvs.climatic influences in lagoon of Aveiro (N Portugal)

Cited by 5 publications

References 12 publications

Monitoring and Evolution of Highly Lead Polluted Coastal Environments: A Case Study in San Simón Bay (NW Spain)

Monitoring and Evolution of Highly Lead Polluted Coastal Environments: A Case Study in San Simón Bay (NW Spain)

Avulsion at a drift-dominated mesotidal estuary: The Chubut River outlet, Patagonia, Argentina

From sambaquis (shell mounds) to plastic debris: a summary of the geological imprint of human occupation in the coast of São Paulo (Southeast Brazil)

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