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language
eng
Author
Hossain, H.M.Zakir
Ulak, Prakash Das
Barry, Roser
Description
 This report contains whole-rock major and trace element XRF analyses of Middle Miocene to Pleistocene Siwalik Group sandstones (96) and mudstones (80) from the Surai Khola section of western Nepal. All were analyzed by X-ray fluorescence for the major elements and 14 trace elements. The data form part of a larger study of the geochemistry of the Siwalik Group, and supplement a similar data set from the Siwaliks in the Bakiya Khola section in central Nepal (Ulak et al., this volume). Analyses are reported for the Bankas (n=21), Chor Khola (n=62), Surai Khola (n=41), Dobata (n = 32) and Dhan Khola Formations (n=20), in ascending stratigraphic order. Normalization of average sandstone and mudstone from each formation against average upper continental crust (UCC) shows Na and Sr are strongly depleted relative to UCC, whereas several immobile elements (e.g. Zr, Th, Sc, Ti) are slightly enriched. However, fractionation between sandstone and mudstone within each formation is limited, particularly in the upper part of the section, and in comparison to the Bakiya Khola section in central Nepal. This suggests that some lateral geochemical variation exists within the Siwalik succession. This aspect will be the subject of future work.
Journal Title
島根大学地球資源環境学研究報告
Volume
27
Start Page
53
End Page
60
ISSN
13439774
Published Date
2008-12-25
NCID
AA11455176
DOI(SelfDOI)
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
Format
PDF
Text Version
出版社版
OAI-PMH Set
Interdisciplinary Graduate School of Science and Engineering
Remark
12-14,16+ / 1993+
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