柴北缘夏日达乌铌钽矿区花岗岩地球化学特征及地质意义
魏生云,王建国,郭学忠,邢佳

Geochemical Characteristics and Geological Significance of Granite in Xiaridawu Niobium-Tantalum Mining Area,Northern Margin of Qaidam Basin
Shengyun WEI,Jianguo WANG,Xuezhong GUO,Jia XING
表1 研究区铌钽矿样品主量元素分析结果
Table 1 Analysis results of major elements of niobium-tantalum ore samples in study area
元素(化合物)各样品主量元素含量
DS1-WuDS2-WuDS3-WuDS4-WuDS5-WuDS6-WuDS7-WuDS8-WuDS9-WuDS10-Wu
SiO276.4177.2275.2676.8175.0575.6576.7178.8477.7977.94
TiO20.070.130.120.120.140.130.120.120.120.12
Al2O313.1412.6813.6112.7413.8113.1412.5411.9412.5512.44
Fe2O30.580.060.160.050.140.210.120.070.150.08
FeO0.460.100.220.100.180.100.100.100.170.20
MnO0.060.000.000.000.000.000.000.000.010.01
MgO0.180.080.140.090.200.210.110.150.090.07
CaO0.290.040.110.060.150.150.100.060.050.04
Na2O1.920.250.320.230.330.311.690.210.230.21
K2O4.927.546.706.946.847.136.986.686.226.78
P2O50.020.020.020.020.020.020.020.020.020.02
LOI1.180.981.232.030.560.972.122.413.021.82
Total98.0598.1296.6697.1696.8697.0598.4998.1997.4097.91
ALK6.847.797.027.177.177.448.676.896.456.99
A/NK1.551.481.751.611.731.591.211.571.761.62
A/CNK1.461.461.701.591.681.541.191.551.741.60
AR3.084.163.103.553.113.545.373.703.103.55
δ1.401.771.531.521.601.702.231.321.201.40
SI2.231.001.861.212.602.641.222.081.310.95