摘要
本文用Ｄ／ｍａｘ－ⅢＣＸ射线衍射仪对延边地区部分麦饭石进行定性物相分析．初步分析结果表明，这些麦饭石主要造岩矿物有石英（Ｑｕａｒｔｚ）、钠长石（Ａｌｂｉｔｅ）、钙长石（Ａｎｏｒｔｈｉｔｅ），属中偏碱性岩系，是花岗岩的风化产物。
Some andesites of Yanbian region were dealt with a qualitative phase analysis by using D/max-Ⅲ C·X-ray diffraction instrument.The preliminary results show that rock-forming system of these andesites are quartz,albite and anorthite.They are the yielding of granite efflorescence and belong to milling basic rock series.A date will be offered preliminary appreciation of andesite qaulity by this results.
出处
《延边大学学报（自然科学版）》
1996年第1期27-31,共5页
Journal of Yanbian University（Natural Science Edition）
