Physical and chemical techniques for a comprehensive characterization of river sediment:A case of study,the Moquegua River,Peru

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外文摘要：River sediment is comprised of complex mineral systems composed by different kinds of organic and inorganic matter,and thus,is difficult to characterize.Besides,some standard techniques,such as X-ray diffraction(XRD),energy dispersive X-ray(EDX),optical and scanning electron microscopy,Fourier transmission infrared spectroscopy,inductively couple plasma-mass spectrometry(ICP-MS),and simultaneous Thermogravimetric Analysis-Differential Thermal Analysis(TGA-DTA),Mössbauer spectroscopy and magnetometry can provide substancial information about the compositional,physical,and chemical characteristics.In the current study,the versality of these methods is tested and the in-formation provided by these methods for eight sediment samples,collected from the Moquegua River,Peru is compared.Qualitative analysis indicates that the samples consist of sand grains with different shapes,sizes,and colors coexisting with the presence of some diatoms.The chemical and mineralogical analysis reveal that the samples are composed mainly of silicon(Si),aluminium(Al),sodium(Na),po-tassium(K),aluminon-silicates,and carbonates,typical for river sediment.More detailed information obtained by these techniques include the discovery of adsorbed oxygen-hydrogen(O-H),carbon-H(C-H)and C,from organic matter,the thermal reactions and decomposition of the components,and the identification of the minor iron-oxides components.Further,other properties such as magnetic interaction are also analyzed in detail.

外文关键词：

River sedimentX-ray diffraction(XRD)Magnetometry of mineralsMössbauer spectroscopyFourier transform infrared(FTIR)Thermal analysis

作者：

Luis De Los Santos Valladares、Arquimedes Vargas-Luque、Luis Borja-Castro、Renato Valencia-Bedregal、José de Jesús Velazquez-Garcia、Eustace Peregrine Barnes、Angel Bustamante Dominguez、Patrick Byrne、Pratap Kollu、Marco Rodriguez Martínez、Jose Antonio Coaquira、Crispin Henry William Barnes

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作者单位：

Cavendish Laboratory,Department of Physics,University of Cambridge,J.J.Thomson Ave.,Cambridge,CB3 0HE,UK

Escuela Profesional de Ingeniería de Minas,Universidad Nacional de Moquegua,Prolongación Ave.Ancash,Moquegua,Mariscal Nieto,18000,Peru

Laboratorio de Cerámicos y Nanomateriales,Facultad de Ciencias Físicas,Universidad Nacional Mayor de San Marcos,Lima,15081,Peru

School of Biological and Environmental Science,Liverpool John Moores University,Liverpool,L3 3AF,UK

Centre for Advances Studies in Electronics Science and Technology(CASEST),School of Physics,University of Hyderabad,Gachibowli,Hyderabad,500046,India

Laboratory of Magnetic Characterization,Instituto de Física,Universidade de Brasília,Brasília,DF,70910-900,Brazil

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基金：

Research Collaboration Agreement between the University of Cambridge,UKNational University of Moquegua,PeruBrazilian agencies National Council for Scientific and Technological Development(CNPq)Fundacao de Apoio a Pesquisa do Distrito Federal(FAPDF)

项目编号：

Agreement RG85120

出版年：

2024

DOI：

10.1016/j.ijsrc.2024.03.003

国际泥沙研究(英文版)

国际泥沙研究培训中心

国际泥沙研究(英文版)

影响因子：0.337

ISSN：1001-6279

年,卷(期)：2024.39(3)