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Separation of quartz from loess in luminescence dating(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2004年第02期
Page:
85-87
Research Field:
Publishing date:

Info

Title:
Separation of quartz from loess in luminescence dating
Author(s):
CHEN Shu-e1; HUANG Chun-chang2; LI Hu-hou3; FU Shu-qing1; DING Sa-ping4
1.School of Earth Sciences and Resources Management,Chang′an University,Xi′an 710054,China;2.College of Tourism and Environment Sciences,Shaanxi Normal University, Xi′an 710054,China;3.Capital Normal University, Beijing 100037,China; 4. Third Survey Insti
Keywords:
luminescence dating ; quartz; separation ; etch ; loess
PACS:
P533
DOI:
-
Abstract:
When quartz fraction is cleaned of feldspar grains by etching in concentrated HF for 40min,more quartz fraction is etched away,and this method may be not suitable for the purity of quartz in loess.As quartz fraction in loess is separated by the tedious process of etching with fluorosilicic acid for about 6 days,20ml 30% fluorosilicic acid per gram,not only the feldsparsin loess can be removed completely, but also less quartz is etched away.The purification of quartz can be checked up not only by IRSL,but also by 110℃ TL peak of quartz.

References:

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Memo

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Last Update: 2004-06-20