在大湖地区东部冰碛物中所发现的红色石榴石与紫红色石榴石的比值,对研究冰碛物地层和来源是非常有用的。在冰碛物的研究中,为了确定这种颜色不同的原因,并用更客观的标准来补充这种颜色的不同,我们做了X射线衍射和荧光分析、原子吸收以及电子探针分析。这两组石榴石在晶胞参数上有0.05(0.005mm)以上的恒定差别。主元素的电子探针分 The ratio of red garnet to fuchsia garnet found in the Eastern Moraine in the Great Lakes region is very useful for studying the moraine strata and sources. In the study of the moraines, X-ray diffraction and fluorescence analysis, atomic absorption, and electron probe analysis were done to determine the reasons for this color difference and to complement this color with more objective criteria. The two groups of garnets have a constant difference above 0.05 (0.005 mm) in the unit cell parameters. The main elements of the electronic probe points