DOI: 10.1016/j.marpolbul.2015.07.034
Scopus记录号: 2-s2.0-84944274586
论文题名: Magnetic properties of sediments in cores from the Mandovi estuary, western India: Inferences on provenance and pollution
作者: Prajith A. ; Rao V.P. ; Kessarkar P.M.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2015
卷: 99, 期: 2018-01-02 起始页码: 338
结束页码: 345
语种: 英语
英文关键词: Estuarine sediments
; Magnetic properties
; Mandovi River
; Ore pollution
; Western India
Scopus关键词: Estuaries
; Magnetic domains
; Magnetic properties
; Magnetic susceptibility
; Magnetism
; Manganese
; Minerals
; Pollution
; Sediments
; Enrichment factors
; Estuarine sediments
; Index of Geo accumulations
; Magnetic grains
; Mandovi rivers
; Pseudo single domains
; Single domains
; Western India
; River pollution
; magnetite
; metal
; water pollutant
; estuarine pollution
; estuarine sediment
; magnetic property
; magnetic susceptibility
; provenance
; sediment core
; sediment pollution
; Article
; environmental monitoring
; estuary
; India
; magnetism
; mineralogy
; pollution
; sediment
; water analysis
; analysis
; chemistry
; pollution
; procedures
; sediment
; water pollutant
; Goa
; India
; Mandovi Estuary
; Mandovi River
; Environmental Monitoring
; Environmental Pollution
; Estuaries
; Geologic Sediments
; India
; Magnetics
; Metals
; 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: Magnetic properties of sediments were investigated in 7 gravity cores recovered along a transect of the Mandovi estuary, western India to understand their provenance and pollution. The maximum magnetic susceptibility of sediments was at least 6 times higher in the upper/middle estuary than in lower estuary/bay. The χfd% and χARM/SIRM of sediments indicated coarse, multi-domain and pseudo-single domain magnetic grains, resembling ore material in the upper/middle estuary and coarse stable single domain (SSD) to fine SSD grains in the lower estuary/bay. Mineralogy parameters indicated hematite and goethite-dominated sediments in the upper/middle estuary and magnetite-dominated sediments in the lower estuary/bay. Two sediment types were discernible because of deposition of abundant ore material in the upper/middle estuary and detrital sediment in the lower estuary/bay. The enrichment factor and Index of geo-accumulation of metals indicated significant to strong pollution with respect to Fe and Mn in sediments from the upper/middle estuary. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86430
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: CSIR - National Institute of Oceanography, Dona Paula, Goa, India
Recommended Citation:
Prajith A.,Rao V.P.,Kessarkar P.M.. Magnetic properties of sediments in cores from the Mandovi estuary, western India: Inferences on provenance and pollution[J]. Marine Pollution Bulletin,2015-01-01,99(2018-01-02)