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Título: | Integrated earth resistivity tomography (ERT) and multilevel sampling gas : a tool to map geogenic and anthropogenic methane accumulation on brownfield sites. |
Autor(es): | Mendonça, Carlos Alberto Doherty, Rory Fornaro, Adalgiza Abreu, Eduardo Lima de Novaes, Guilherme do Carmo Fachin, Sergio Junior da Silva La Scalea, Mauro Aquiles |
Palavras-chave: | Methane Quaternary sediments São Paulo Basin Earth resistivity tomography |
Data do documento: | 2015 |
Referência: | MENDONÇA, C. A. et al. Integrated earth resistivity tomography (ERT) and multilevel sampling gas: a tool to map geogenic and anthropogenic methane accumulation on brownfield sites Environmental Earth Sciences, v. 74, p. 1217–1226, 2015. Disponível em: <https://link.springer.com/article/10.1007%2Fs12665-015-4111-6>. Acesso em: 20 jun. 2017. |
Resumo: | Soil gas emissions of methane and carbon dioxide on brownfield sites are usually attributed to anthropogenic activities; however geogenic sources of soil gas are often not considered during site investigation and risk management strategies. This paper presents a field study at a redeveloped brownfield site on a flood plain to identify accumulations of methane biogas trapped in underlying sediments. The investigation is based on a multidisciplinary approach using direct multi-level sampling measurements and Earth resistivity tomography . Resistivity imaging was applied to evaluate the feasibility of identifying the size and spatial continuity of soil gas accumulations in anthropogenic and naturally occurring deposits. As a result, biogas accumulations are described within both anthropogenic deposits and pristine organic sediments. This result is important to identify the correct approaches to identify andmanage risks associated with soil gas emissions on brownfield and pristine sites. The organic-rich sediments in Quaternary fluvial environments of Sa˜o Paulo Basin in particular the Tieteˆ River, biogas reservoirs can be generated and trapped beneath geogenic and anthropogenic layers, potentially requiring the management of brownfield developments across this region. |
URI: | http://www.repositorio.ufop.br/handle/123456789/8344 |
Link para o artigo: | https://link.springer.com/article/10.1007%2Fs12665-015-4111-6 |
DOI: | https://doi.org/10.1007/s12665-015-4111-6 |
ISSN: | 1866-6299 |
Aparece nas coleções: | DEGEO - Artigos publicados em periódicos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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ARTIGO_IntegratedEarthResistivity.pdf Restricted Access | 1,62 MB | Adobe PDF | Visualizar/Abrir |
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