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Isotopic compositions of boron in sediments and their implications

DRS at CSIR-National Institute of Oceanography

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Title Isotopic compositions of boron in sediments and their implications
 
Creator Shirodkar, P.V.
Yingkai, X.
 
Subject boron
isotopes
sediments
analytical techniques
depletion
carbonate minerals
 
Description The abundance and isotopic compositions of boron in sediments from the salt lakes of Qaidam Basin, China have been determined by thermal ionization mass spectrometry of cesium borate. The results show large variations in the isotopic compositions of boron. The observed variations of delta sup(11)B, ranging from - 25.2 ppt to + 26.08 ppt (relative to NBS SRM 951) indicate both an enrichment and depletion in the lighter isotope (sup(11)B) in the lake sediments. The lower delta sup(11)B values of sediments are mostly closer to the boron isotopic composition of minerals. Such low delta sup(11)B values are attributed to the presence of borates, ulexite and other carbonate minerals in sediments of the salt lakes of Qaidam Basin.
 
Date 2009-01-12T09:08:30Z
2009-01-12T09:08:30Z
1997
 
Type Journal Article
 
Identifier Current Science, Vol.72; 74-77p.
http://drs.nio.org/drs/handle/2264/2035
 
Language en
 
Rights Copyright [1997]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Current Science Association, Bangalore