Preliminary Research of K-Feldspar Glasses Synthesis by High Temperature Melting
详细信息
- 责任者：Song Jiayao (State Key Laboratory of Continental Dynamics ; Department of Geology ; Northwest University ; Xi’an 710069 ; China) ; Yuan Honglin
- 刊名：Rock and Mineral Analysis
- 出版年：2011
- 卷期：30(4)
- 关键词：标准样品 ; type specimens ; 钾长石 ; K-feldspar ; 矿物合成 ; mineral synthesis
- 页码：p.406-411
- 图表：1 illus., 3 tables, 21 refs.
- 分类号：0900
- 出版序号：917
- issnNo：ISSN0254-5357
- isbnNo：CN11-2131/TD
摘要
///This paper reports on work done on the synthesis of K-feldspar glass in a high temperature furnace. The final experimental conditions of the synthesis were to melt the 1300 mesh K-feldspar powders at 1 680℃ for 2 hours followed by liquid nitrogen quenching. The results showed that the lead isotopic compositions of the inner glass are 1.907 79±0.000 09(208Pb/206Pb, 2s), 0.758 99±0.000 04(207Pb/206Pb,2s), 20.909±0.002(206Pb/204Pb,2s), 15.871±0.002(207Pb/204Pb,2s) and 39.888±0.005(208Pb/204Pb,2s), and the RSDs were 0.007%, 0.008%, 0.016%, 0.016% and 0.021%, respectively. Therefore, synthesized K-feldspar glass could potentially serve as an external calibration standard for in situ lead isotope measurements.
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