DOI: 10.1016/j.marpolbul.2017.04.020
Scopus记录号: 2-s2.0-85018173769
论文题名: Geochemical markers of sedimentary organic matter in Todos os Santos Bay, Bahia – Brazil. Indicators of sources and preservation
作者: de Souza J.R.B. ; do Rosário Zucchi M. ; Costa A.B. ; de Azevedo A.E.G. ; Spano S.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 119, 期: 2 起始页码: 239
结束页码: 246
语种: 英语
英文关键词: n-Alkanes
; PAHs
; Sediments
; Stabe isotopes
; Todos os Santos Bay
; δ13C of specific n-alkanes compounds
Scopus关键词: Aromatic hydrocarbons
; Biogeochemistry
; Biological materials
; Carbon
; Geochemistry
; Hydrocarbons
; Isotopes
; Mixtures
; Organic compounds
; Petroleum chemistry
; Polycyclic aromatic hydrocarbons
; Sedimentology
; Sediments
; Anthropogenic modification
; Isotopic composition
; n-Alkanes
; Petroleum hydrocarbons
; Santos bays
; Sedimentary organic matter
; Sedimentary process
; Total organic matter
; Paraffins
; aliphatic hydrocarbon
; alkane derivative
; carbon
; organic matter
; petrogen
; polycyclic aromatic hydrocarbon
; pyrogen
; unclassified drug
; polycyclic aromatic hydrocarbon
; aliphatic hydrocarbon
; alkane
; carbon isotope
; isotopic composition
; isotopic ratio
; organic matter
; PAH
; petroleum hydrocarbon
; sediment chemistry
; stable isotope
; Article
; Brazil
; chemical composition
; geochemistry
; marine environment
; preservation
; sediment
; surface sediment
; surface water hydrology
; water supply
; analysis
; bay
; chemistry
; environmental monitoring
; sediment
; water pollutant
; Bahia
; Brazil
; Todos os Santos Bay
; Bays
; Brazil
; Environmental Monitoring
; Geologic Sediments
; Polycyclic Aromatic Hydrocarbons
; Water Pollutants, Chemical
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Natural stable isotopes, such as carbon (C) and nitrogen (N), are modern tools to assess geochemical processes. C and N in organic matter can carry fingerprints of their hydrologic flows and sedimentary processes, including any anthropogenic modification on the natural system. This study focuses on the determination of aliphatic and polycyclic aromatic hydrocarbons and isotopic ratio in the sediment of Todos os Santos Bay (TSB). The isotopic results of the total organic matter indicate varied contribution marine and terrigenous. Typical rates of PAHs mainly indicate a pyrogenic source and mixture between pyrogenic and petrogenic sources. Typical ratios for the n-alkanes indicate the presence of petroleum hydrocarbons. The isotopic composition of n-alkanes suggests a mixture of sources, with the possible contribution of petrogenic. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87558
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Instituto de Física, Universidade Federal da Bahia, Salvador, Bahia, Brazil; Centro de Pesquisa em Geofísica e Geologia, Universidade Federal da Bahia, Salvador, Bahia, Brazil
Recommended Citation:
de Souza J.R.B.,do Rosário Zucchi M.,Costa A.B.,et al. Geochemical markers of sedimentary organic matter in Todos os Santos Bay, Bahia – Brazil. Indicators of sources and preservation[J]. Marine Pollution Bulletin,2017-01-01,119(2)