东昆仑小灶火地区钼矿化正长花岗岩年代学、地球化学特征及其地质意义

陈静,胡继春,逯永卓,卢世银,王树林,徐贝贝

Geochronology，Geochemical Characteristics of Molybdenum Ore-bearing Syenogranite from Xiaozhaohuo Area in East Kunlun and Its Geological Significance

Jing CHEN,Jichun HU,Yongzhuo LU,Shiying LU,Shulin WANG,Beibei XU

小灶火地区含矿正长花岗岩（XZHJD1）锆石LA-ICP-MS U-Pb同位素测试数据

Table 1 Table 1 LA-ICP-MS zircon U- Pb isotopic tset data for ore-bearing syenogranite （XZHJD1） in Xiaozaohuo area

测点编号 含量（×10-6）及比值 同位素比值及误差 年龄及误差 238U 232Th 232Th/238U 207Pb/206Pb 1σ 207Pb/235U 1σ 206Pb/238U 1σ 206Pb/238U 1σ 1 326.94 216.73 0.66 0.05793 0.00263 0.2854 0.01240 0.03572 0.00042 226 3 2 374.34 208.12 0.56 0.05433 0.00383 0.26757 0.01830 0.03571 0.00062 226 4 3 395.31 189.35 0.48 0.05925 0.00201 0.29372 0.00939 0.03595 0.00032 228 2 4 359.78 266.71 0.74 0.04898 0.00168 0.24110 0.00783 0.03570 0.00030 226 2 5 693.50 440.25 0.63 0.04605 0.00277 0.22469 0.01305 0.03539 0.00054 224 3 6 657.32 359.52 0.55 0.06043 0.00269 0.29869 0.01271 0.03584 0.00042 227 3 7 490.92 350.41 0.71 0.05873 0.00649 0.28267 0.03074 0.03491 0.00070 221 4 8 517.31 357.25 0.69 0.05016 0.00178 0.24696 0.00832 0.03571 0.00031 226 2 9 527.93 336.54 0.64 0.05116 0.00126 0.25231 0.00566 0.03576 0.00023 226 1 10 523.05 279.68 0.53 0.05250 0.00207 0.25912 0.00975 0.03579 0.00035 227 2 11 347.92 251.36 0.72 0.05393 0.00163 0.26560 0.00746 0.03571 0.00028 226 2 12 836.68 729.23 0.87 0.05047 0.00353 0.24607 0.01674 0.03536 0.00057 224 4 13 436.40 307.08 0.70 0.05415 0.00305 0.26383 0.01465 0.03534 0.00036 224 2 14 607.12 159.45 0.26 0.05286 0.00246 0.26142 0.01166 0.03586 0.00041 227 3 15 540.32 330.61 0.61 0.06155 0.00294 0.30362 0.01392 0.03577 0.00045 227 3 16 617.61 346.15 0.56 0.06802 0.00321 0.32634 0.01502 0.03480 0.00035 220 2