检索结果-南通市图书馆

Evaluation of redox-sensitive metals in marine surface sediments influenced by the oxygen minimum zone of the Humboldt Current system, Northern Chile

引用

International Journal of Sediment Research 2019年第2期34卷 178-190页

作者： Alexis Castillo Jorge Valdés Abdel Sifeddine Sue-Ellen Vega Javier Díaz-Ochoa Yery Marambio PhD Program in Applied Sciences Mention Marine Coastal systems Faculty of Marine Sciences and Biological Resources University of Antofagasta Laboratory of Sedimentology and Palaeoenvironments Alexander von Humboldt InstituteFaculty of Marine Sciences and Biological Resources University of Antofagasta International Joint Laboratory PALEOTRACES (Research Institute for Development Federal Fluminense University University of Antofagasta Peruvian University Cayetano Heredia) Network for Extreme Environments Research (University of Antofagasta University of the Frontera University of Magallanes) Department of Geochemistry Federal Fluminense University IRD-Sorbonne University (UPMC CNRS-MNHN) Department of Sciences and Natural Resources Faculty of SciencesUniversity of Magallanes

Upwelling coastal systems can be used to understand how dissolved oxygen and biological productivity control the accumulation of redox-sensitive metals in marine *** aluminium(Al),cadmium(Cd),iron(Fe),nickel(Ni),molybdenum(Mo),vanadium(V),total organic carbon(TOC),total nitrogen(TN)and total sulfur(TS)contents in surficial sediment collected from different water depths(30,70,and 120 m)in three northern Chilean bays influenced by coastal upwelling and oxygen minimum zones(OMZs)were *** component analysis(PCA),cluster analysis,and Spearman’s rank correlation were used to identify the mechanisms responsible for the redox-sensitive metal *** content of redox-sensitive metals and organic components in sediment increased with increasing water column depth,whereas lithogenic metals *** the Mejillones del Sur and caldera bays,the enrichment factors of the redox-sensitive metals showed enrichment for all metals with *** Cd and V enrichments are mainly the product of biogenic flow to the seabed,and the Mo and Ni enrichments are due to preservation under low subsurface oxygen *** reduction is not an important mechanism in the accumulation of redox-sensitive metals in the sediment of the three *** PCA showed that the behaviors of the redox-sensitive metals and organic components reflect differences in the effects of the OMZ in sediment along the coast of northern Chile,with a more intense OMZ in Mejillones del Sur bay and weaker OMZs in caldera and Inglesa ***,the high degree of enrichment in redox-sensitive metals in caldera bay can be attributed to the intense activity of the mining industry near the bay,a situation that produces geochemical behavior similar to that observed in Mejillones del Sur bay.

关键词： Redox sensitive-metals Atacama Desert Enrichment factor Mejillones del Sur bay caldera bay system PCA

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：