SEISMOLOGY AND GEOLOGY ›› 1999, Vol. 21 ›› Issue (1): 48-50.

• Brief Report • Previous Articles     Next Articles

DISCUSSION ON SOME PROBLEMS IN APPLICATION OF MDD MODEL Ⅱ-SIGNIFICANCE OF ACTIVATION ENERGY DETERMINATIONS

Li Qi, Chen Wenji   

  1. Institute of Geology, China Seismological Bureau, Beijing 100029
  • Received:1998-09-30 Online:1999-03-10 Published:2009-11-25

MDD模式应用中若干问题的讨论Ⅱ-活化能选取的重要性

李齐, 陈文寄   

  1. 中国地震局地质研究所, 北京, 100029
  • 基金资助:
    国家自然科学基金资助(49572147);中国地震局地质研究所论著99B0004.

Abstract: For the MDD model the activation energy determination has remarkable influence upon the cooling temperature curve of which the value is about 7~8℃/kcal·mol-1. But it does not change the shape of the cooling curve.The affecting factors of low value by activation energy determination include heating duration in low temperature stage, pureness of K-feldspar and mixture of some plagioclase, quartz et al.

Key words: Thermal history, Geological age determination, Activation energy MDD model

摘要: 活化能取值在MDD模式中对冷却曲线的温度有较大的影响,其影响度大约为7~8℃/kcal·mol-1,但它并不改变冷却曲线的形状。导致活化能取值偏低的影响因素包括低温阶段的加热时间、K-长石的纯度和部分斜长石、石英的混入等。

关键词: 热历史, 地质年代测定, 活化能, MDD模式