摘要
近十年来，由于高精度硼、氯同位素测定方法的建立，硼、氯同位素地球化学在研究的深度和广度上都得到了快速发展。硼、氯同位素地球化学的研究已在海洋、盐湖、地下水、蒸发岩、热液矿床、环境等方面开展，并显示出在解决一些地学问题方面所具有的良好前景。该文简要概述了目前国内外硼、氯同位素测定方法和在地球科学的一些领域应用方面取得的成果和进展。
Boron has two stable isotopes ( 11 B and 10 B), chlorine also has two stable isotopes ( 37 Cl and 35 Cl).The large different in mass (11 and 10,35 and 37) make both boron and chlorine exist big isotopic fractionation in the nature. Variations of boron and chlorine isotopic compositions had not been found in early investigations due to poor precision of determing boron and chlorine. Since 1980s , with some high precise methods of determing boron and chlorine isotopes, the variations of boron and chlorine isotopes in nature have been evidenced by high precise determination and a lot of investigations . δ 11 B range from -30‰ to 60‰,and δ 37 Cl range from -2‰ to 7‰. Many significant work about boron and chlorine isotopic geochemistry have been maken in oceans, salt lakes, groundwater,evaporated sediment and hydrothermal fluids. This paper give a brief summary of including analytical methods and application in Earth sciences.
出处
《地球科学进展》
CAS
CSCD
1998年第6期547-554,共8页
Advances in Earth Science
基金
国家自然科学基金
关键词
氯同位素
测定法
地球化学
硼同位素
B and Cl isotopes, Methods of determination, Geochemistry.
