摘要
本文用6种统计检验方法对河北大麻坪幔源包体中橄榄石亚颗粒大小的6批样品数据进行了分布型式的统计检验,证实了它们均服从对数正态分布的论断。在此基础上,论证了此时样本的几何平均数才是合理的橄榄石位错亚颗粒大小的估计量,并给出了更为合理的区间估计。
The reasonable estimation of the dislocation subgrain size of olivine is the key problem for the correct calculation of the flow stress in the deformed process of the upper mantle. Six statistical test methods are used for test of the lognormal distribution form in six sample data of the subgrain size of olivine which are collected from the mantle xenoliths in the Damaping region, Hebei Province. It is validated that all these six samples follow the lognormal distribution. Based on this, the reason why in this case the geometrical average is the reasonable estimator for the subgrain size parameter is discussed, and more reasonable estimation-the interval estimation is given.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1992年第2期189-194,共6页
Earth Science-Journal of China University of Geosciences
基金
国家自然科学基金
关键词
橄榄石
位错
亚颗粒
统计
检验
olivine, subgrain size, flow stress, lognormal distribution, geometrical average, statistical test.
