摘要
Abstract
The granite geology characteristics of Baishun area are preliminarily discussed,in the main of Indo-Chinese epoch and Yanshan epoch. SiO2 and Al2O3 contents of these two epochs granites are all relatively high, separately are 63.60%~75.37% and 12.12%~18.78%; the negative correlations of SiO2 with Al2O3, CaO, MgO, FeO, MnO, K2O, TiO2 are not obvious, the same with positive corrections of SiO2 with Na2O、 P2O5. The contents of the whole bases (Na2O+K2O) are all high, 7.17%~13.77%, so it should be peralkaline granite. The aluminum saturation index (ACNK) are between 0.92%~1.65%, and the alkalinity index (A/NK) are between 1.06%and 1.80%, so it's peraluminous.关键词
百顺地区/花岗岩体/印支期燕山期/过碱性过铝质Key words
Baishun area/granites/Indo-Chinese epoch and Yanshan epoch/peralkaline and peraluminous分类
天文与地球科学
