USE OF ELECTRON MICROPROBE SCANNING PICTURES FOR MODAL ANALYSIS

被引：5

作者：

THOMPSON, RN

DUNHAM, AC

机构：

[1] Department of Geology, The University, Manchester 13, England

来源：

EARTH AND PLANETARY SCIENCE LETTERS | 1969年 / 6卷 / 02期

关键词：

D O I：

10.1016/0012-821X(69)90135-6

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

A method is described for making modal analyses of fine-grained mineral aggregates, by cutting up and weighing electron microprobe scanning pictures for one or more elements. Groundmass iron-titanium oxides in volcanic lavas are used to check the accuracy of this technique, relative to conventional point counting. Electron microprobe scanning picture modes and reflected light point counting modes for these minerals are almost identical, whereas transmitted light modes give serious overestimates of their abundances. © 1969.

引用

页码：161 / &