Environmental discrimination based on quartz grain surface textures: a statistical investigation
Environmental discrimination based on quartz grain surface textures: a statistical investigation
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基于石英颗粒表面纹理的环境歧视：统计调查
DOI：
10.1111/j.1365-3091.1983.tb00655.x
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发表时间：
1983
期刊：
影响因子：
3.5
通讯作者：
W. B. Whalley
中科院分区：
文献类型：
--
作者：
S. Culver;P. A. Bull;S. Campbell;R. Shakesby;W. B. Whalley
从8个编码样品中鉴定出的32个表面特征的相对丰度是由5名扫描电子显微镜独立注意到的。这些数据（简化为二进制形式）是典型变量分析的主题，在所有样本之间进行了明确的区分。13个变量对于区分这8个样本很重要。这表明，没有单一的关键地表特征可以单独进行快速的环境判别。因此，为了环境歧视的目的，应该记录多种表面特征的论点得到了支持。
The relative abundance of thirty-two surface features identified on the surfaces of quartz sand grains from eight coded samples was noted independently by five scanning electron microscopists. These data (reduced to binary form) were the subject of canonical variate analyses which discriminated clearly between all samples. Thirteen variables were important in distinguishing between the eight samples. This indicates that there are no single key surface features which, on their own, would allow rapid environmental discrimination. The contention that a multiplicity of surface features should be recorded for the purpose of environmental discrimination is, therefore, upheld.
Operator variance, although considerable in the recognition of individual surface features, is negligible in discrimination of samples based on binary data. The SEM technique of analysis of quartz grain surface textures is a reliable and statistically valid means of discriminating between samples from different environments.