Genesis of the Bieyesamas Monzogranite of the Altay Mountain, Xinjiang, Northwestern China, and Its Rare Metal Resource Potential

Table 1

LA-ICP-MS U-Pb isotopic analyses for zircons from the Bieyesamas monzogranite.

Spot	Pb (10^-6)	Th (×10^-6)	U (×10^-6)	Th/U	Ratio						Age/Ma
					^207Pb/^206Pb	±1σ	^207Pb/^235U	±1σ	^206Pb/^238U	±1σ	^207Pb/^235U	±1σ	^206Pb/^238U	±1σ
3	72.5	106.9	529.0	0.20	0.0541	0.0009	0.5460	0.0085	0.0729	0.0004	442.0	5.5	453.6	2.5
5	76.0	94.9	1123.0	0.08	0.0561	0.0005	0.5660	0.0050	0.0729	0.0005	455.0	3.4	453.7	2.9
7	36.7	45.8	291.8	0.16	0.0558	0.0009	0.5470	0.0095	0.0725	0.0007	442.0	6.0	451.2	4.2
9	32.0	43.6	150.3	0.29	0.0558	0.0013	0.5570	0.0135	0.0728	0.0007	448.0	9.0	453.0	4.3
10	78.6	89.3	543.0	0.16	0.0561	0.0006	0.5720	0.0060	0.0744	0.0005	458.9	3.8	462.5	3.0
11	62.9	80.3	308.0	0.26	0.0562	0.0011	0.5490	0.0110	0.0711	0.0007	443.0	7.0	442.7	4.0
18	15.4	21.5	300.8	0.07	0.0542	0.0009	0.5380	0.0090	0.0727	0.0006	436.0	6.0	452.2	3.4
21	96.2	145.4	879.0	0.17	0.0552	0.0006	0.5640	0.0065	0.0748	0.0009	453.7	4.1	465.0	5.0
22	38.3	56.9	875.0	0.07	0.0550	0.0006	0.5309	0.0047	0.0705	0.0003	432.2	3.2	439.2	2.1
24	59.8	105.0	269.0	0.39	0.0561	0.0010	0.5550	0.0095	0.0722	0.0009	447.0	6.0	449.0	5.5
25	36.7	64.5	210.0	0.31	0.0547	0.0013	0.5650	0.0130	0.0748	0.0011	453.0	8.5	465.0	6.0
26	37.3	62.2	347.0	0.18	0.0568	0.0009	0.5790	0.0085	0.0736	0.0006	463.0	5.5	457.6	3.7
28	83.9	135.0	530.0	0.25	0.0556	0.0008	0.5500	0.0085	0.0711	0.0008	444.0	6.0	443.0	5.0