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language
eng
Author
Ortiz, Edwin
Barry, Roser
Description
Stream sediments collected from 47 localities in the Hii River of Shimane Prefecture were hand sieved to separate the < 180μm and 180-2000μm fractions.Major and trace compositions of both fractions in each sample were determined by X-ray fluorescence analysis.Elemental abundances contrast significantly between the two size fractions.Average abundances of SiO_2,K_2O,Ba,and Rb are greater in the 180-2000μm fractions,whereas the remaining elements are generally more abundant in the <180μm fractions.Loss on ignition values are also greater in the <180μm fractions.
Average compositions of both fractions show similar normalized distributions to average upper continental crust.The greatest departure from upper continental crust composition is observed in the <180μm fraction,with enrichment for several ferromagnesian elements(V,TiO_2,Fe_2O_3t,Sc)and for Zr,Y,and Th.In both fractions,Nb,CaO,Na_2O,Sr,Rb,MgO and Ni are slightly depleted relative to UCC.
Journal Title
島根大学地球資源環境学研究報告
Volume
24
Start Page
53
End Page
58
ISSN
13439774
Published Date
2005-12-27
NCID
AA11455176
Publisher
島根大学総合理工学部地球資源環境学教室
Publisher Aalternative
Department of Geoscience, Interdisciplinary Faculty of Science and Engineering, Shimane University
NII Type
Departmental Bulletin Paper
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
Remark
12-14,16+ / 1993+
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