现代地质 ›› 2022, Vol. 36 ›› Issue (06): 1447-1464.DOI: 10.19657/j.geoscience.1000-8527.2022.06.01
任程昊1(), 佘宏全1(
), 柯昌辉1, 孙衍东1, 周群茂2, 焦天龙1, 李保亮1
收稿日期:
2021-12-09
修回日期:
2022-10-31
出版日期:
2022-12-10
发布日期:
2023-01-11
通讯作者:
佘宏全
作者简介:
佘宏全,男,研究员,1965年出生,矿床学专业,主要从事金属矿床成矿规律及找矿方向研究。Email:974307769@qq.com。基金资助:
REN Chenghao1(), SHE Hongquan1(
), KE Changhui1, SUN Yandong1, ZHOU Qunmao2, JIAO Tianlong1, LI Baoliang1
Received:
2021-12-09
Revised:
2022-10-31
Online:
2022-12-10
Published:
2023-01-11
Contact:
SHE Hongquan
摘要:
钟腾铜矿床为位于华夏板块东南缘上杭—云霄构造-岩浆成矿带上的岩浆热液型矿床。岩石地球化学分析表明矿区3种主要花岗质岩石均属于高钾钙碱性系列岩石,具有高钾、富碱、贫硅、低钛的特征,部分岩石有过铝质的特点,轻稀土元素富集,具有弱负铕异常。微量元素以富集大离子K、Rb、Th等亲石元素,亏损Nb、Ta、Ti等高场强元素为特征。LA-ICP-MS锆石U-Pb测年获得矿区3种岩石年龄分别为(103.5±0.4) Ma、(102.2±0.4) Ma、(103±0.4) Ma,锆石εHf(t)值在-2.9~2.0,两阶段模式年龄(TDM2)为1.04~1.35 Ga。矿石辉钼矿的Re-Os同位素测年获得等时线年龄为(105±2.5) Ma,说明成矿主要与燕山晚期花岗岩侵入有关。综合本次研究及相关区域资料,认为钟腾铜矿区的花岗岩为I型花岗岩,花岗岩及相关矿床形成于东南沿海地区110~90 Ma期间的古太平洋板块向西俯冲的大陆边缘背景。
中图分类号:
任程昊, 佘宏全, 柯昌辉, 孙衍东, 周群茂, 焦天龙, 李保亮. 福建平和钟腾铜矿床成岩成矿时代研究[J]. 现代地质, 2022, 36(06): 1447-1464.
REN Chenghao, SHE Hongquan, KE Changhui, SUN Yandong, ZHOU Qunmao, JIAO Tianlong, LI Baoliang. Study on the Intrusive Ages of the Granites and Metallogenic Age from Zhongteng Copper Deposit, Pinghe, Fujian Province[J]. Geoscience, 2022, 36(06): 1447-1464.
图1 钟腾斑岩铜矿床蚀变岩分布和地质图(据福建省地质调查院修改①,2014) 1.石英闪长岩;2.石英闪长玢岩;3.花岗闪长斑岩;4.石英斑岩;5.黄铁绢英岩化;6.黄铁矿化;7.高岭土化、明矾石化;8.铜矿体及编号;9.蚀变带分界线; 10.断层;11.钻孔;12.样品位置。① 福建平和大小矾山地区矿产远景调查.福建省地质调查院,2014.
Fig.1 Alteration and geological map of Zhongteng porphyry Cu deposit (modified after Geological Survey of Fujian①, 2014)
图2 钟腾铜矿04线地质剖面图(据福建省地质局七队修改②,1974)
Fig.2 Geological profile of prospecting line 04 of Zhongteng Cu deposit (modified after 7th Exploratin Team of Geological Bureau of Fujian②, 1974)
图3 钟腾铜矿床主要花岗岩岩石和矿石样品岩相学特征 a、b、c.石英闪长玢岩;d、e、f.石英闪长岩;g、h.花岗闪长斑岩,黄铜矿交代黄铁矿形成残余结构;i.铜蓝交代辉钼矿。
Fig.3 Petrographic photography of granites and ore samples of Zhongteng Cu deposit
样品号 | 岩性 | SiO2 | TiO2 | Al2O3 | TFe2O3 | MnO | MgO | CaO | Na2O | K2O | P2O5 | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ZT008-1 | 石英闪长玢岩 | 58.16 | 0.86 | 16.21 | 9.55 | 0.13 | 2.21 | 0.21 | 3.11 | 4.81 | 0.06 | ||||||||||||||||
ZT008-2 | 59.53 | 0.88 | 16.69 | 10.04 | 0.12 | 2.26 | 0.21 | 3.12 | 5.03 | 0.06 | |||||||||||||||||
ZT008-3 | 59.50 | 0.86 | 16.47 | 8.40 | 0.17 | 2.24 | 0.32 | 3.01 | 5.09 | 0.14 | |||||||||||||||||
ZT008-4 | 59.48 | 0.86 | 16.05 | 7.97 | 0.10 | 2.29 | 0.41 | 3.43 | 5.27 | 0.16 | |||||||||||||||||
ZT008-5 | 56.40 | 0.91 | 16.69 | 9.42 | 0.11 | 2.39 | 0.31 | 3.06 | 5.22 | 0.10 | |||||||||||||||||
ZT009-1 | 石英闪长岩 | 59.05 | 0.90 | 16.85 | 6.18 | 0.13 | 2.58 | 2.26 | 2.04 | 3.56 | 0.26 | ||||||||||||||||
ZT009-2 | 56.44 | 0.98 | 17.36 | 7.44 | 0.12 | 3.09 | 4.03 | 2.50 | 2.69 | 0.28 | |||||||||||||||||
ZT009-3 | 58.28 | 0.94 | 17.52 | 6.55 | 0.12 | 2.62 | 2.34 | 2.07 | 3.46 | 0.28 | |||||||||||||||||
ZT009-4 | 57.79 | 0.93 | 18.33 | 6.32 | 0.12 | 2.39 | 1.53 | 1.00 | 3.62 | 0.24 | |||||||||||||||||
ZT009-5 | 58.19 | 0.95 | 17.88 | 6.76 | 0.11 | 2.61 | 0.84 | 1.61 | 3.80 | 0.29 | |||||||||||||||||
ZT015-1 | 花岗闪长斑岩 | 60.97 | 0.79 | 15.48 | 6.45 | 0.08 | 2.69 | 4.44 | 2.64 | 3.52 | 0.21 | ||||||||||||||||
ZT015-2 | 60.48 | 0.82 | 15.73 | 6.23 | 0.09 | 2.77 | 4.64 | 2.72 | 3.48 | 0.22 | |||||||||||||||||
ZT015-3 | 59.30 | 0.89 | 16.28 | 6.47 | 0.09 | 2.99 | 4.85 | 2.69 | 3.18 | 0.25 | |||||||||||||||||
ZT015-4 | 0.22 | 60.65 | 0.82 | 15.69 | 6.20 | 0.08 | 2.78 | 4.49 | 2.68 | 3.61 | |||||||||||||||||
ZT015-5 | 59.05 | 0.85 | 16.07 | 6.57 | 0.08 | 3.01 | 4.85 | 2.70 | 3.19 | 0.24 | |||||||||||||||||
样品号 | 岩性 | LOI | A/NK | A/CNK | Total | La | Ce | Pr | Nd | Sm | Eu | ||||||||||||||||
ZT008-1 | 石英闪长玢岩 | 4.15 | 1.57 | 1.51 | 99.46 | 56.05 | 112.78 | 12.43 | 43.00 | 8.28 | 2.15 | ||||||||||||||||
ZT008-2 | 1.47 | 1.58 | 1.52 | 99.41 | 39.45 | 73.81 | 8.56 | 35.46 | 6.89 | 2.28 | |||||||||||||||||
ZT008-3 | 3.23 | 1.57 | 1.49 | 99.43 | 49.85 | 101.0 | 10.91 | 38.67 | 7.52 | 1.98 | |||||||||||||||||
ZT008-4 | 3.00 | 1.41 | 1.33 | 99.02 | 45.38 | 91.38 | 9.96 | 39.09 | 7.33 | 2.04 | |||||||||||||||||
ZT008-5 | 4.29 | 1.56 | 1.48 | 98.91 | 44.94 | 89.86 | 9.40 | 36.27 | 6.23 | 1.79 | |||||||||||||||||
ZT009-1 | 石英闪长岩 | 4.86 | 2.33 | 1.49 | 98.67 | 39.36 | 81.35 | 8.58 | 33.49 | 6.16 | 1.64 | ||||||||||||||||
ZT009-2 | 3.77 | 2.47 | 1.21 | 98.69 | 38.43 | 79.47 | 8.30 | 32.38 | 5.97 | 1.63 | |||||||||||||||||
ZT009-3 | 5.13 | 2.45 | 1.53 | 99.31 | 38.08 | 76.79 | 8.06 | 32.27 | 5.96 | 1.68 | |||||||||||||||||
ZT009-4 | 7.11 | 3.29 | 2.19 | 99.37 | 37.77 | 76.06 | 8.01 | 31.98 | 5.81 | 1.67 | |||||||||||||||||
ZT009-5 | 6.37 | 2.64 | 2.15 | 99.40 | 38.80 | 77.35 | 8.08 | 32.50 | 5.90 | 1.82 | |||||||||||||||||
ZT015-1 | 花岗闪长斑岩 | 1.69 | 1.90 | 0.95 | 98.95 | 44.92 | 93.71 | 10.99 | 41.27 | 8.90 | 1.50 | ||||||||||||||||
ZT015-2 | 1.45 | 1.91 | 0.94 | 98.64 | 37.55 | 85.43 | 10.20 | 39.30 | 9.00 | 1.53 | |||||||||||||||||
ZT015-3 | 1.73 | 2.07 | 0.97 | 98.71 | 95.49 | 191.00 | 19.11 | 65.00 | 11.85 | 1.84 | |||||||||||||||||
ZT015-4 | 1.43 | 1.88 | 0.95 | 98.65 | 27.54 | 69.38 | 8.87 | 38.07 | 8.21 | 1.46 | |||||||||||||||||
ZT015-5 | 1.89 | 2.03 | 0.96 | 98.51 | 42.25 | 93.36 | 11.53 | 43.62 | 10.13 | 1.63 | |||||||||||||||||
样品号 | 岩性 | Ga | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Y | ||||||||||||||||
ZT008-1 | 石英闪长玢岩 | 21.08 | 6.75 | 1.11 | 5.29 | 1.00 | 3.10 | 0.42 | 2.82 | 0.44 | 24.15 | ||||||||||||||||
ZT008-2 | 21.36 | 5.17 | 1.01 | 5.23 | 0.97 | 2.94 | 0.42 | 2.60 | 0.42 | 23.81 | |||||||||||||||||
ZT008-3 | 22.01 | 5.71 | 1.03 | 5.28 | 0.96 | 3.04 | 0.44 | 2.99 | 0.45 | 23.14 | |||||||||||||||||
ZT008-4 | 22.18 | 5.69 | 1.07 | 5.47 | 1.05 | 3.26 | 0.42 | 3.02 | 0.48 | 24.89 | |||||||||||||||||
ZT008-5 | 22.37 | 4.81 | 0.85 | 4.06 | 0.77 | 2.46 | 0.35 | 2.27 | 0.36 | 17.07 | |||||||||||||||||
ZT009-1 | 石英闪长岩 | 18.73 | 5.16 | 0.85 | 4.20 | 0.80 | 2.48 | 0.34 | 2.17 | 0.35 | 19.29 | ||||||||||||||||
ZT009-2 | 19.53 | 4.93 | 0.82 | 4.11 | 0.79 | 2.43 | 0.34 | 2.14 | 0.34 | 19.62 | |||||||||||||||||
ZT009-3 | 20.14 | 4.81 | 0.82 | 4.04 | 0.79 | 2.40 | 0.34 | 2.13 | 0.34 | 19.34 | |||||||||||||||||
ZT009-4 | 18.47 | 4.92 | 0.82 | 3.87 | 0.74 | 2.30 | 0.31 | 2.00 | 0.32 | 17.97 | |||||||||||||||||
ZT009-5 | 20.06 | 4.74 | 0.82 | 3.87 | 0.75 | 2.32 | 0.31 | 2.01 | 0.32 | 17.76 | |||||||||||||||||
ZT015-1 | 花岗闪长斑岩 | 25.57 | 6.69 | 1.11 | 5.17 | 0.89 | 2.67 | 0.38 | 2.38 | 0.38 | 21.33 | ||||||||||||||||
ZT015-2 | 26.31 | 6.46 | 1.09 | 5.08 | 0.87 | 2.62 | 0.36 | 2.25 | 0.36 | 20.25 | |||||||||||||||||
ZT015-3 | 26.80 | 9.73 | 1.35 | 5.90 | 1.05 | 3.30 | 0.42 | 2.77 | 0.44 | 25.63 | |||||||||||||||||
ZT015-4 | 26.09 | 5.38 | 1.05 | 5.20 | 0.91 | 2.69 | 0.39 | 2.50 | 0.40 | 21.34 | |||||||||||||||||
ZT015-5 | 26.79 | 7.38 | 1.33 | 6.78 | 1.20 | 3.59 | 0.47 | 3.26 | 0.48 | 26.94 | |||||||||||||||||
样品号 | 岩性 | ΣREE | LREE | HREE | LREE/HREE | (La/Yb)N | δEu | δCe | Rb | K | Ba | ||||||||||||||||
ZT008-1 | 石英闪长玢岩 | 255.61 | 234.69 | 20.92 | 11.22 | 14.25 | 0.88 | 1.05 | 143.9 | 29 514.7 | 838.4 | ||||||||||||||||
ZT008-2 | 185.21 | 166.45 | 18.76 | 8.87 | 10.88 | 1.17 | 0.98 | 122.7 | 22 294.7 | 778.0 | |||||||||||||||||
ZT008-3 | 229.82 | 209.92 | 19.89 | 10.55 | 11.97 | 0.93 | 1.06 | 143.5 | 28 713.1 | 780.9 | |||||||||||||||||
ZT008-4 | 215.64 | 195.18 | 20.46 | 9.54 | 10.77 | 0.96 | 1.05 | 134.9 | 30 004.3 | 814.8 | |||||||||||||||||
ZT008-5 | 204.43 | 188.50 | 15.93 | 11.83 | 14.22 | 1.00 | 1.07 | 176.7 | 31 498.7 | 777.0 | |||||||||||||||||
ZT009-1 | 石英闪长岩 | 186.91 | 170.57 | 16.35 | 10.43 | 13.01 | 0.89 | 1.09 | 190.26 | 29 219 | 651.21 | ||||||||||||||||
ZT009-2 | 182.08 | 166.18 | 15.90 | 10.45 | 12.87 | 0.92 | 1.09 | 178.13 | 28 881 | 657.52 | |||||||||||||||||
ZT009-3 | 178.52 | 162.83 | 15.69 | 10.38 | 12.84 | 0.96 | 1.07 | 159.92 | 26 360 | 675.07 | |||||||||||||||||
ZT009-4 | 176.57 | 161.30 | 15.28 | 10.56 | 13.55 | 0.96 | 1.07 | 178.31 | 29 932 | 662.44 | |||||||||||||||||
ZT009-5 | 179.58 | 164.44 | 15.15 | 10.86 | 13.82 | 1.05 | 1.07 | 171.44 | 26 448 | 693.55 | |||||||||||||||||
ZT015-1 | 花岗闪长斑岩 | 220.95 | 201.29 | 19.67 | 10.23 | 13.55 | 0.60 | 1.03 | 298.0 | 39 912 | 628.6 | ||||||||||||||||
ZT015-2 | 202.11 | 183.02 | 19.09 | 9.59 | 11.94 | 0.61 | 1.07 | 307.1 | 41 738 | 622.1 | |||||||||||||||||
ZT015-3 | 409.28 | 384.31 | 24.97 | 15.39 | 24.75 | 0.52 | 1.10 | 324.4 | 42 236 | 727.9 | |||||||||||||||||
ZT015-4 | 172.06 | 153.54 | 18.52 | 8.29 | 7.89 | 0.67 | 1.09 | 321.7 | 43 729 | 656.0 | |||||||||||||||||
ZT015-5 | 227.00 | 202.51 | 24.49 | 8.27 | 9.31 | 0.58 | 1.04 | 334.6 | 43 314 | 623.7 | |||||||||||||||||
样品号 | 岩性 | Th | U | Nb | Ta | Sr | Nd | P | Zr | Hf | Ti | TZr/℃ | |||||||||||||||
ZT008-1 | 石英闪长玢岩 | 20.9 | 5.8 | 14.0 | 0.96 | 419.2 | 43.0 | 1 145.3 | 227.6 | 6.1 | 5 936.1 | 846.8 | |||||||||||||||
ZT008-2 | 11.2 | 3.1 | 11.8 | 0.67 | 506.7 | 35.5 | 1 237.4 | 257.8 | 6.5 | 6 357.5 | 859.5 | ||||||||||||||||
ZT008-3 | 19.1 | 5.5 | 14.2 | 1.00 | 416.6 | 38.7 | 1 208.6 | 246.5 | 6.5 | 6 199.5 | 852.7 | ||||||||||||||||
ZT008-4 | 20.1 | 6.0 | 14.4 | 0.99 | 278.6 | 39.1 | 1 068.0 | 246.3 | 6.3 | 6 247.2 | 840.5 | ||||||||||||||||
ZT008-5 | 20.1 | 5.8 | 14.4 | 0.99 | 329.8 | 36.3 | 1 258.3 | 250.6 | 6.5 | 6 183.4 | 851.5 | ||||||||||||||||
ZT009-1 | 石英闪长岩 | 20.36 | 6.02 | 12.75 | 0.96 | 480.72 | 33.49 | 919.9 | 210.01 | 5.61 | 5 218.5 | 824.8 | |||||||||||||||
ZT009-2 | 18.86 | 6.25 | 13.33 | 0.96 | 498.91 | 32.38 | 957.9 | 226.54 | 5.84 | 5 411.6 | 794.0 | ||||||||||||||||
ZT009-3 | 18.22 | 6.45 | 14.29 | 1.02 | 532.56 | 32.27 | 1 084 | 196.53 | 5.23 | 5 866.8 | 819.3 | ||||||||||||||||
ZT009-4 | 18.09 | 5.59 | 13.05 | 0.91 | 490.65 | 31.98 | 964.4 | 221.87 | 5.81 | 5 409.3 | 863.5 | ||||||||||||||||
ZT009-5 | 15.50 | 5.06 | 12.74 | 0.76 | 558.18 | 32.50 | 1 039 | 206.40 | 5.42 | 5 730.6 | 859.7 | ||||||||||||||||
ZT015-1 | 花岗闪长斑岩 | 21.3 | 7.7 | 15.2 | 0.98 | 234.21 | 41.27 | 244.51 | 214.01 | 5.48 | 5 712.0 | 764.7 | |||||||||||||||
ZT015-2 | 20.0 | 7.6 | 15.0 | 1.00 | 233.59 | 39.30 | 240.14 | 204.99 | 5.45 | 5 661.3 | 756.8 | ||||||||||||||||
ZT015-3 | 22.9 | 7.4 | 15.5 | 1.07 | 266.78 | 65.00 | 628.73 | 212.85 | 5.69 | 5 765.7 | 760.6 | ||||||||||||||||
ZT015-4 | 20.6 | 7.9 | 15.1 | 1.01 | 175.10 | 38.07 | 711.69 | 210.94 | 5.63 | 5 732.9 | 761.7 | ||||||||||||||||
ZT015-5 | 22.3 | 9.2 | 16.3 | 1.08 | 241.62 | 43.62 | 423.52 | 205.60 | 5.60 | 5 827.3 | 755.9 |
表1 钟腾铜矿床花岗岩稀土、微量元素(wB/10-6)和主量元素(wB/%)分析结果
Table 1 Analysis results of major elements(%), REE and trace elements (10-6) of the granites from Zhongteng Cu deposit
样品号 | 岩性 | SiO2 | TiO2 | Al2O3 | TFe2O3 | MnO | MgO | CaO | Na2O | K2O | P2O5 | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ZT008-1 | 石英闪长玢岩 | 58.16 | 0.86 | 16.21 | 9.55 | 0.13 | 2.21 | 0.21 | 3.11 | 4.81 | 0.06 | ||||||||||||||||
ZT008-2 | 59.53 | 0.88 | 16.69 | 10.04 | 0.12 | 2.26 | 0.21 | 3.12 | 5.03 | 0.06 | |||||||||||||||||
ZT008-3 | 59.50 | 0.86 | 16.47 | 8.40 | 0.17 | 2.24 | 0.32 | 3.01 | 5.09 | 0.14 | |||||||||||||||||
ZT008-4 | 59.48 | 0.86 | 16.05 | 7.97 | 0.10 | 2.29 | 0.41 | 3.43 | 5.27 | 0.16 | |||||||||||||||||
ZT008-5 | 56.40 | 0.91 | 16.69 | 9.42 | 0.11 | 2.39 | 0.31 | 3.06 | 5.22 | 0.10 | |||||||||||||||||
ZT009-1 | 石英闪长岩 | 59.05 | 0.90 | 16.85 | 6.18 | 0.13 | 2.58 | 2.26 | 2.04 | 3.56 | 0.26 | ||||||||||||||||
ZT009-2 | 56.44 | 0.98 | 17.36 | 7.44 | 0.12 | 3.09 | 4.03 | 2.50 | 2.69 | 0.28 | |||||||||||||||||
ZT009-3 | 58.28 | 0.94 | 17.52 | 6.55 | 0.12 | 2.62 | 2.34 | 2.07 | 3.46 | 0.28 | |||||||||||||||||
ZT009-4 | 57.79 | 0.93 | 18.33 | 6.32 | 0.12 | 2.39 | 1.53 | 1.00 | 3.62 | 0.24 | |||||||||||||||||
ZT009-5 | 58.19 | 0.95 | 17.88 | 6.76 | 0.11 | 2.61 | 0.84 | 1.61 | 3.80 | 0.29 | |||||||||||||||||
ZT015-1 | 花岗闪长斑岩 | 60.97 | 0.79 | 15.48 | 6.45 | 0.08 | 2.69 | 4.44 | 2.64 | 3.52 | 0.21 | ||||||||||||||||
ZT015-2 | 60.48 | 0.82 | 15.73 | 6.23 | 0.09 | 2.77 | 4.64 | 2.72 | 3.48 | 0.22 | |||||||||||||||||
ZT015-3 | 59.30 | 0.89 | 16.28 | 6.47 | 0.09 | 2.99 | 4.85 | 2.69 | 3.18 | 0.25 | |||||||||||||||||
ZT015-4 | 0.22 | 60.65 | 0.82 | 15.69 | 6.20 | 0.08 | 2.78 | 4.49 | 2.68 | 3.61 | |||||||||||||||||
ZT015-5 | 59.05 | 0.85 | 16.07 | 6.57 | 0.08 | 3.01 | 4.85 | 2.70 | 3.19 | 0.24 | |||||||||||||||||
样品号 | 岩性 | LOI | A/NK | A/CNK | Total | La | Ce | Pr | Nd | Sm | Eu | ||||||||||||||||
ZT008-1 | 石英闪长玢岩 | 4.15 | 1.57 | 1.51 | 99.46 | 56.05 | 112.78 | 12.43 | 43.00 | 8.28 | 2.15 | ||||||||||||||||
ZT008-2 | 1.47 | 1.58 | 1.52 | 99.41 | 39.45 | 73.81 | 8.56 | 35.46 | 6.89 | 2.28 | |||||||||||||||||
ZT008-3 | 3.23 | 1.57 | 1.49 | 99.43 | 49.85 | 101.0 | 10.91 | 38.67 | 7.52 | 1.98 | |||||||||||||||||
ZT008-4 | 3.00 | 1.41 | 1.33 | 99.02 | 45.38 | 91.38 | 9.96 | 39.09 | 7.33 | 2.04 | |||||||||||||||||
ZT008-5 | 4.29 | 1.56 | 1.48 | 98.91 | 44.94 | 89.86 | 9.40 | 36.27 | 6.23 | 1.79 | |||||||||||||||||
ZT009-1 | 石英闪长岩 | 4.86 | 2.33 | 1.49 | 98.67 | 39.36 | 81.35 | 8.58 | 33.49 | 6.16 | 1.64 | ||||||||||||||||
ZT009-2 | 3.77 | 2.47 | 1.21 | 98.69 | 38.43 | 79.47 | 8.30 | 32.38 | 5.97 | 1.63 | |||||||||||||||||
ZT009-3 | 5.13 | 2.45 | 1.53 | 99.31 | 38.08 | 76.79 | 8.06 | 32.27 | 5.96 | 1.68 | |||||||||||||||||
ZT009-4 | 7.11 | 3.29 | 2.19 | 99.37 | 37.77 | 76.06 | 8.01 | 31.98 | 5.81 | 1.67 | |||||||||||||||||
ZT009-5 | 6.37 | 2.64 | 2.15 | 99.40 | 38.80 | 77.35 | 8.08 | 32.50 | 5.90 | 1.82 | |||||||||||||||||
ZT015-1 | 花岗闪长斑岩 | 1.69 | 1.90 | 0.95 | 98.95 | 44.92 | 93.71 | 10.99 | 41.27 | 8.90 | 1.50 | ||||||||||||||||
ZT015-2 | 1.45 | 1.91 | 0.94 | 98.64 | 37.55 | 85.43 | 10.20 | 39.30 | 9.00 | 1.53 | |||||||||||||||||
ZT015-3 | 1.73 | 2.07 | 0.97 | 98.71 | 95.49 | 191.00 | 19.11 | 65.00 | 11.85 | 1.84 | |||||||||||||||||
ZT015-4 | 1.43 | 1.88 | 0.95 | 98.65 | 27.54 | 69.38 | 8.87 | 38.07 | 8.21 | 1.46 | |||||||||||||||||
ZT015-5 | 1.89 | 2.03 | 0.96 | 98.51 | 42.25 | 93.36 | 11.53 | 43.62 | 10.13 | 1.63 | |||||||||||||||||
样品号 | 岩性 | Ga | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Y | ||||||||||||||||
ZT008-1 | 石英闪长玢岩 | 21.08 | 6.75 | 1.11 | 5.29 | 1.00 | 3.10 | 0.42 | 2.82 | 0.44 | 24.15 | ||||||||||||||||
ZT008-2 | 21.36 | 5.17 | 1.01 | 5.23 | 0.97 | 2.94 | 0.42 | 2.60 | 0.42 | 23.81 | |||||||||||||||||
ZT008-3 | 22.01 | 5.71 | 1.03 | 5.28 | 0.96 | 3.04 | 0.44 | 2.99 | 0.45 | 23.14 | |||||||||||||||||
ZT008-4 | 22.18 | 5.69 | 1.07 | 5.47 | 1.05 | 3.26 | 0.42 | 3.02 | 0.48 | 24.89 | |||||||||||||||||
ZT008-5 | 22.37 | 4.81 | 0.85 | 4.06 | 0.77 | 2.46 | 0.35 | 2.27 | 0.36 | 17.07 | |||||||||||||||||
ZT009-1 | 石英闪长岩 | 18.73 | 5.16 | 0.85 | 4.20 | 0.80 | 2.48 | 0.34 | 2.17 | 0.35 | 19.29 | ||||||||||||||||
ZT009-2 | 19.53 | 4.93 | 0.82 | 4.11 | 0.79 | 2.43 | 0.34 | 2.14 | 0.34 | 19.62 | |||||||||||||||||
ZT009-3 | 20.14 | 4.81 | 0.82 | 4.04 | 0.79 | 2.40 | 0.34 | 2.13 | 0.34 | 19.34 | |||||||||||||||||
ZT009-4 | 18.47 | 4.92 | 0.82 | 3.87 | 0.74 | 2.30 | 0.31 | 2.00 | 0.32 | 17.97 | |||||||||||||||||
ZT009-5 | 20.06 | 4.74 | 0.82 | 3.87 | 0.75 | 2.32 | 0.31 | 2.01 | 0.32 | 17.76 | |||||||||||||||||
ZT015-1 | 花岗闪长斑岩 | 25.57 | 6.69 | 1.11 | 5.17 | 0.89 | 2.67 | 0.38 | 2.38 | 0.38 | 21.33 | ||||||||||||||||
ZT015-2 | 26.31 | 6.46 | 1.09 | 5.08 | 0.87 | 2.62 | 0.36 | 2.25 | 0.36 | 20.25 | |||||||||||||||||
ZT015-3 | 26.80 | 9.73 | 1.35 | 5.90 | 1.05 | 3.30 | 0.42 | 2.77 | 0.44 | 25.63 | |||||||||||||||||
ZT015-4 | 26.09 | 5.38 | 1.05 | 5.20 | 0.91 | 2.69 | 0.39 | 2.50 | 0.40 | 21.34 | |||||||||||||||||
ZT015-5 | 26.79 | 7.38 | 1.33 | 6.78 | 1.20 | 3.59 | 0.47 | 3.26 | 0.48 | 26.94 | |||||||||||||||||
样品号 | 岩性 | ΣREE | LREE | HREE | LREE/HREE | (La/Yb)N | δEu | δCe | Rb | K | Ba | ||||||||||||||||
ZT008-1 | 石英闪长玢岩 | 255.61 | 234.69 | 20.92 | 11.22 | 14.25 | 0.88 | 1.05 | 143.9 | 29 514.7 | 838.4 | ||||||||||||||||
ZT008-2 | 185.21 | 166.45 | 18.76 | 8.87 | 10.88 | 1.17 | 0.98 | 122.7 | 22 294.7 | 778.0 | |||||||||||||||||
ZT008-3 | 229.82 | 209.92 | 19.89 | 10.55 | 11.97 | 0.93 | 1.06 | 143.5 | 28 713.1 | 780.9 | |||||||||||||||||
ZT008-4 | 215.64 | 195.18 | 20.46 | 9.54 | 10.77 | 0.96 | 1.05 | 134.9 | 30 004.3 | 814.8 | |||||||||||||||||
ZT008-5 | 204.43 | 188.50 | 15.93 | 11.83 | 14.22 | 1.00 | 1.07 | 176.7 | 31 498.7 | 777.0 | |||||||||||||||||
ZT009-1 | 石英闪长岩 | 186.91 | 170.57 | 16.35 | 10.43 | 13.01 | 0.89 | 1.09 | 190.26 | 29 219 | 651.21 | ||||||||||||||||
ZT009-2 | 182.08 | 166.18 | 15.90 | 10.45 | 12.87 | 0.92 | 1.09 | 178.13 | 28 881 | 657.52 | |||||||||||||||||
ZT009-3 | 178.52 | 162.83 | 15.69 | 10.38 | 12.84 | 0.96 | 1.07 | 159.92 | 26 360 | 675.07 | |||||||||||||||||
ZT009-4 | 176.57 | 161.30 | 15.28 | 10.56 | 13.55 | 0.96 | 1.07 | 178.31 | 29 932 | 662.44 | |||||||||||||||||
ZT009-5 | 179.58 | 164.44 | 15.15 | 10.86 | 13.82 | 1.05 | 1.07 | 171.44 | 26 448 | 693.55 | |||||||||||||||||
ZT015-1 | 花岗闪长斑岩 | 220.95 | 201.29 | 19.67 | 10.23 | 13.55 | 0.60 | 1.03 | 298.0 | 39 912 | 628.6 | ||||||||||||||||
ZT015-2 | 202.11 | 183.02 | 19.09 | 9.59 | 11.94 | 0.61 | 1.07 | 307.1 | 41 738 | 622.1 | |||||||||||||||||
ZT015-3 | 409.28 | 384.31 | 24.97 | 15.39 | 24.75 | 0.52 | 1.10 | 324.4 | 42 236 | 727.9 | |||||||||||||||||
ZT015-4 | 172.06 | 153.54 | 18.52 | 8.29 | 7.89 | 0.67 | 1.09 | 321.7 | 43 729 | 656.0 | |||||||||||||||||
ZT015-5 | 227.00 | 202.51 | 24.49 | 8.27 | 9.31 | 0.58 | 1.04 | 334.6 | 43 314 | 623.7 | |||||||||||||||||
样品号 | 岩性 | Th | U | Nb | Ta | Sr | Nd | P | Zr | Hf | Ti | TZr/℃ | |||||||||||||||
ZT008-1 | 石英闪长玢岩 | 20.9 | 5.8 | 14.0 | 0.96 | 419.2 | 43.0 | 1 145.3 | 227.6 | 6.1 | 5 936.1 | 846.8 | |||||||||||||||
ZT008-2 | 11.2 | 3.1 | 11.8 | 0.67 | 506.7 | 35.5 | 1 237.4 | 257.8 | 6.5 | 6 357.5 | 859.5 | ||||||||||||||||
ZT008-3 | 19.1 | 5.5 | 14.2 | 1.00 | 416.6 | 38.7 | 1 208.6 | 246.5 | 6.5 | 6 199.5 | 852.7 | ||||||||||||||||
ZT008-4 | 20.1 | 6.0 | 14.4 | 0.99 | 278.6 | 39.1 | 1 068.0 | 246.3 | 6.3 | 6 247.2 | 840.5 | ||||||||||||||||
ZT008-5 | 20.1 | 5.8 | 14.4 | 0.99 | 329.8 | 36.3 | 1 258.3 | 250.6 | 6.5 | 6 183.4 | 851.5 | ||||||||||||||||
ZT009-1 | 石英闪长岩 | 20.36 | 6.02 | 12.75 | 0.96 | 480.72 | 33.49 | 919.9 | 210.01 | 5.61 | 5 218.5 | 824.8 | |||||||||||||||
ZT009-2 | 18.86 | 6.25 | 13.33 | 0.96 | 498.91 | 32.38 | 957.9 | 226.54 | 5.84 | 5 411.6 | 794.0 | ||||||||||||||||
ZT009-3 | 18.22 | 6.45 | 14.29 | 1.02 | 532.56 | 32.27 | 1 084 | 196.53 | 5.23 | 5 866.8 | 819.3 | ||||||||||||||||
ZT009-4 | 18.09 | 5.59 | 13.05 | 0.91 | 490.65 | 31.98 | 964.4 | 221.87 | 5.81 | 5 409.3 | 863.5 | ||||||||||||||||
ZT009-5 | 15.50 | 5.06 | 12.74 | 0.76 | 558.18 | 32.50 | 1 039 | 206.40 | 5.42 | 5 730.6 | 859.7 | ||||||||||||||||
ZT015-1 | 花岗闪长斑岩 | 21.3 | 7.7 | 15.2 | 0.98 | 234.21 | 41.27 | 244.51 | 214.01 | 5.48 | 5 712.0 | 764.7 | |||||||||||||||
ZT015-2 | 20.0 | 7.6 | 15.0 | 1.00 | 233.59 | 39.30 | 240.14 | 204.99 | 5.45 | 5 661.3 | 756.8 | ||||||||||||||||
ZT015-3 | 22.9 | 7.4 | 15.5 | 1.07 | 266.78 | 65.00 | 628.73 | 212.85 | 5.69 | 5 765.7 | 760.6 | ||||||||||||||||
ZT015-4 | 20.6 | 7.9 | 15.1 | 1.01 | 175.10 | 38.07 | 711.69 | 210.94 | 5.63 | 5 732.9 | 761.7 | ||||||||||||||||
ZT015-5 | 22.3 | 9.2 | 16.3 | 1.08 | 241.62 | 43.62 | 423.52 | 205.60 | 5.60 | 5 827.3 | 755.9 |
图6 钟腾铜矿花岗岩锆石CL图像和锆石U-Pb年龄图解
Fig.6 CL images of the zircons (a, c, e) and zircon 207Pb/235U-206Pb/238U concordia diagram with average age(b, d, f) for the granites from Zhongteng Cu deposit
点号 | wB/10-6 | Th/U | 同位素比值 | 年龄 | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pb | U | 207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | 208Pb/232Th | 1σ | 207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | |||
ZT008-4 | 12.29 | 645.67 | 0.43 | 0.049 01 | 0.002 22 | 0.108 96 | 0.005 47 | 0.016 08 | 0.000 28 | 0.004 94 | 0.000 24 | 146.38 | 105.54 | 105.01 | 5.01 | 102.85 | 1.79 | |
ZT008-5 | 9.00 | 443.69 | 0.53 | 0.047 78 | 0.002 47 | 0.104 60 | 0.005 01 | 0.016 15 | 0.000 27 | 0.004 94 | 0.000 24 | 87.13 | 118.50 | 101.01 | 4.60 | 103.27 | 1.74 | |
ZT008-6 | 9.07 | 442.92 | 0.60 | 0.046 31 | 0.002 78 | 0.100 61 | 0.005 68 | 0.016 03 | 0.000 30 | 0.005 17 | 0.000 25 | 13.06 | 137.03 | 97.34 | 5.24 | 102.51 | 1.92 | |
ZT008-7 | 7.44 | 371.24 | 0.49 | 0.047 69 | 0.002 23 | 0.105 79 | 0.005 10 | 0.016 18 | 0.000 27 | 0.005 01 | 0.000 22 | 83.43 | 107.40 | 102.11 | 4.68 | 103.45 | 1.69 | |
ZT008-8 | 7.26 | 347.89 | 0.65 | 0.051 18 | 0.002 57 | 0.111 85 | 0.005 59 | 0.016 00 | 0.000 25 | 0.004 84 | 0.000 22 | 255.62 | 116.65 | 107.65 | 5.11 | 102.34 | 1.56 | |
ZT008-9 | 6.54 | 309.08 | 0.70 | 0.049 49 | 0.003 48 | 0.107 38 | 0.007 23 | 0.016 01 | 0.000 30 | 0.004 90 | 0.000 24 | 172.31 | 155.53 | 103.57 | 6.63 | 102.36 | 1.91 | |
ZT008-10 | 15.85 | 772.36 | 0.60 | 0.047 99 | 0.001 76 | 0.107 50 | 0.004 41 | 0.016 13 | 0.000 23 | 0.004 66 | 0.000 21 | 98.24 | 87.03 | 103.68 | 4.04 | 103.16 | 1.45 | |
ZT008-11 | 15.79 | 776.27 | 0.58 | 0.047 50 | 0.001 93 | 0.106 39 | 0.004 68 | 0.016 15 | 0.000 24 | 0.004 70 | 0.000 21 | 76.02 | 92.58 | 102.65 | 4.29 | 103.28 | 1.52 | |
ZT008-12 | 11.70 | 576.34 | 0.56 | 0.047 61 | 0.002 28 | 0.106 74 | 0.004 96 | 0.016 34 | 0.000 26 | 0.004 67 | 0.000 21 | 79.72 | 111.10 | 102.98 | 4.55 | 104.48 | 1.68 | |
ZT008-13 | 6.72 | 313.77 | 0.81 | 0.046 14 | 0.003 17 | 0.102 51 | 0.006 71 | 0.016 30 | 0.000 28 | 0.004 42 | 0.000 19 | 400.05 | -238.86 | 99.09 | 6.18 | 104.20 | 1.76 | |
ZT008-14 | 21.66 | 1 056.46 | 0.60 | 0.048 84 | 0.001 77 | 0.109 53 | 0.004 03 | 0.016 26 | 0.000 20 | 0.004 47 | 0.000 18 | 138.98 | 89.80 | 105.53 | 3.68 | 103.97 | 1.26 | |
ZT008-15 | 8.15 | 399.92 | 0.53 | 0.049 08 | 0.003 30 | 0.106 19 | 0.006 11 | 0.016 13 | 0.000 29 | 0.005 03 | 0.000 24 | 150.09 | 151.83 | 102.47 | 5.61 | 103.13 | 1.83 | |
ZT008-17 | 18.08 | 871.92 | 0.60 | 0.049 40 | 0.001 97 | 0.111 11 | 0.004 33 | 0.016 43 | 0.000 24 | 0.004 90 | 0.000 21 | 164.90 | 89.80 | 106.98 | 3.96 | 105.05 | 1.50 | |
ZT008-18 | 7.20 | 351.91 | 0.58 | 0.052 04 | 0.002 87 | 0.115 72 | 0.006 19 | 0.016 31 | 0.000 27 | 0.004 79 | 0.000 23 | 287.10 | 121.28 | 111.18 | 5.63 | 104.32 | 1.71 | |
ZT008-19 | 9.42 | 421.85 | 0.94 | 0.047 16 | 0.002 79 | 0.103 93 | 0.005 82 | 0.016 17 | 0.000 26 | 0.004 78 | 0.000 23 | 57.50 | 133.32 | 100.40 | 5.36 | 103.39 | 1.66 | |
ZT008-20 | 21.83 | 1 024.93 | 0.74 | 0.047 19 | 0.001 90 | 0.105 25 | 0.004 17 | 0.016 20 | 0.000 23 | 0.004 62 | 0.000 23 | 57.50 | 96.29 | 101.61 | 3.83 | 103.62 | 1.43 | |
ZT009-1 | 19.44 | 826.88 | 1.35 | 0.049 92 | 0.001 75 | 0.109 27 | 0.003 93 | 0.015 88 | 0.000 20 | 0.004 03 | 0.000 38 | 190.82 | 113.87 | 105.29 | 3.60 | 101.58 | 1.27 | |
ZT009-5 | 18.63 | 808.67 | 1.28 | 0.048 07 | 0.001 54 | 0.105 76 | 0.003 32 | 0.016 02 | 0.000 20 | 0.004 43 | 0.000 27 | 101.94 | 71.29 | 102.08 | 3.05 | 102.46 | 1.25 | |
ZT009-6 | 12.62 | 573.78 | 1.07 | 0.048 07 | 0.001 71 | 0.104 76 | 0.003 69 | 0.015 89 | 0.000 20 | 0.004 57 | 0.000 25 | 101.94 | 83.33 | 101.16 | 3.40 | 101.64 | 1.29 | |
ZT009-7 | 10.69 | 603.07 | 0.23 | 0.049 09 | 0.002 11 | 0.106 78 | 0.004 45 | 0.015 85 | 0.000 24 | 0.004 96 | 0.000 30 | 153.79 | 97.21 | 103.02 | 4.08 | 101.35 | 1.53 | |
ZT009-8 | 12.22 | 558.91 | 1.06 | 0.049 99 | 0.002 01 | 0.109 43 | 0.004 68 | 0.015 80 | 0.000 21 | 0.004 80 | 0.000 23 | 194.53 | 94.43 | 105.45 | 4.28 | 101.07 | 1.33 | |
ZT009-10 | 16.45 | 701.60 | 1.36 | 0.047 85 | 0.001 99 | 0.104 66 | 0.004 09 | 0.015 99 | 0.000 19 | 0.004 93 | 0.000 22 | 100.09 | 87.03 | 101.07 | 3.76 | 102.25 | 1.19 | |
ZT009-11 | 7.60 | 367.43 | 0.91 | 0.047 68 | 0.004 47 | 0.099 30 | 0.008 05 | 0.015 37 | 0.000 49 | 0.005 30 | 0.000 30 | 83.43 | 216.64 | 96.13 | 7.43 | 98.32 | 3.12 | |
ZT009-12 | 14.96 | 658.04 | 1.24 | 0.052 45 | 0.002 12 | 0.114 35 | 0.004 37 | 0.015 92 | 0.000 22 | 0.004 95 | 0.000 20 | 305.62 | 92.58 | 109.94 | 3.98 | 101.81 | 1.38 | |
ZT009-13 | 16.01 | 711.56 | 1.12 | 0.051 55 | 0.001 68 | 0.115 25 | 0.003 68 | 0.016 26 | 0.000 19 | 0.005 04 | 0.000 19 | 264.88 | 74.06 | 110.75 | 3.35 | 104.00 | 1.20 | |
ZT009-14 | 20.63 | 910.81 | 1.24 | 0.046 96 | 0.001 67 | 0.102 28 | 0.003 50 | 0.015 86 | 0.000 18 | 0.004 95 | 0.000 17 | 55.65 | 75.92 | 98.87 | 3.22 | 101.41 | 1.11 | |
ZT009-15 | 8.42 | 392.27 | 0.94 | 0.049 06 | 0.002 61 | 0.106 95 | 0.005 43 | 0.015 98 | 0.000 23 | 0.005 16 | 0.000 19 | 150.09 | 156.46 | 103.17 | 4.98 | 102.19 | 1.47 | |
点号 | wB/10-6 | Th/U | 同位素比值 | 年龄/Ma | ||||||||||||||
Pb | U | 207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | 208Pb/232Th | 1σ | 207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | |||
ZT009-16 | 12.09 | 556.22 | 1.06 | 0.051 78 | 0.001 93 | 0.113 10 | 0.004 12 | 0.015 89 | 0.000 21 | 0.004 97 | 0.000 17 | 275.99 | 89.80 | 108.80 | 3.76 | 101.62 | 1.33 | |
ZT009-17 | 14.64 | 645.65 | 1.13 | 0.050 63 | 0.001 86 | 0.111 58 | 0.004 03 | 0.016 05 | 0.000 22 | 0.005 16 | 0.000 17 | 233.40 | 52.77 | 107.41 | 3.68 | 102.65 | 1.37 | |
ZT009-18 | 18.61 | 818.75 | 1.16 | 0.050 43 | 0.001 76 | 0.113 27 | 0.004 10 | 0.016 28 | 0.000 21 | 0.004 99 | 0.000 16 | 213.04 | 81.47 | 108.95 | 3.74 | 104.12 | 1.35 | |
ZT015-1 | 4.28 | 196.50 | 0.74 | 0.051 45 | 0.004 03 | 0.112 67 | 0.008 88 | 0.016 00 | 0.000 33 | 0.005 30 | 0.000 32 | 261.18 | 176.83 | 108.41 | 8.11 | 102.33 | 2.10 | |
ZT015-2 | 13.40 | 622.93 | 0.79 | 0.051 64 | 0.002 26 | 0.112 72 | 0.005 18 | 0.015 81 | 0.000 24 | 0.004 98 | 0.000 26 | 333.39 | 99.99 | 108.45 | 4.73 | 101.12 | 1.55 | |
ZT015-3 | 19.91 | 1 000.48 | 0.56 | 0.049 73 | 0.001 71 | 0.106 77 | 0.003 64 | 0.015 64 | 0.000 20 | 0.004 82 | 0.000 23 | 188.97 | 79.62 | 103.01 | 3.34 | 100.07 | 1.24 | |
ZT015-4 | 9.69 | 468.12 | 0.65 | 0.053 63 | 0.002 54 | 0.118 72 | 0.005 74 | 0.016 12 | 0.000 26 | 0.004 89 | 0.000 25 | 353.76 | 100.92 | 113.91 | 5.21 | 103.09 | 1.66 | |
ZT015-5 | 17.68 | 846.57 | 0.78 | 0.049 87 | 0.002 18 | 0.108 45 | 0.004 75 | 0.015 84 | 0.000 21 | 0.004 73 | 0.000 22 | 190.82 | 101.84 | 104.55 | 4.35 | 101.31 | 1.35 | |
ZT015-6 | 19.92 | 962.89 | 0.56 | 0.051 91 | 0.001 86 | 0.115 16 | 0.003 99 | 0.016 29 | 0.000 25 | 0.005 33 | 0.000 25 | 279.69 | 81.47 | 110.68 | 3.63 | 104.14 | 1.57 | |
ZT015-7 | 9.18 | 433.85 | 0.70 | 0.049 24 | 0.002 70 | 0.109 53 | 0.006 09 | 0.016 25 | 0.000 25 | 0.005 31 | 0.000 28 | 166.75 | 124.98 | 105.54 | 5.58 | 103.92 | 1.62 | |
ZT015-8 | 11.21 | 525.87 | 0.72 | 0.046 62 | 0.003 08 | 0.102 55 | 0.006 40 | 0.016 20 | 0.000 25 | 0.005 16 | 0.000 27 | 31.58 | 157.39 | 99.12 | 5.89 | 103.57 | 1.56 | |
ZT015-9 | 9.71 | 454.50 | 0.71 | 0.050 38 | 0.002 44 | 0.112 46 | 0.005 53 | 0.016 35 | 0.000 24 | 0.004 98 | 0.000 26 | 213.04 | 112.95 | 108.21 | 5.05 | 104.52 | 1.49 | |
ZT015-10 | 4.79 | 222.60 | 0.77 | 0.054 30 | 0.004 34 | 0.117 59 | 0.009 63 | 0.016 11 | 0.000 37 | 0.005 28 | 0.000 32 | 383.39 | 179.61 | 112.88 | 8.75 | 103.02 | 2.33 | |
ZT015-11 | 6.68 | 320.19 | 0.74 | 0.053 53 | 0.004 33 | 0.113 76 | 0.008 54 | 0.015 88 | 0.000 33 | 0.004 79 | 0.000 30 | 350.06 | 178.68 | 109.40 | 7.78 | 101.58 | 2.07 | |
ZT015-12 | 20.47 | 1 002.70 | 0.64 | 0.049 01 | 0.001 80 | 0.107 56 | 0.003 94 | 0.016 01 | 0.000 21 | 0.004 89 | 0.000 26 | 150.09 | 85.17 | 103.73 | 3.61 | 102.41 | 1.34 | |
ZT015-13 | 5.23 | 249.41 | 0.79 | 0.050 99 | 0.003 51 | 0.112 61 | 0.008 16 | 0.015 94 | 0.000 33 | 0.004 43 | 0.000 26 | 238.96 | 159.24 | 108.35 | 7.44 | 101.95 | 2.10 | |
ZT015-14 | 21.31 | 1 045.53 | 0.62 | 0.048 71 | 0.001 89 | 0.108 13 | 0.004 32 | 0.016 16 | 0.000 22 | 0.004 88 | 0.000 23 | 200.08 | 97.21 | 104.26 | 3.96 | 103.37 | 1.38 | |
ZT015-15 | 9.64 | 478.12 | 0.56 | 0.047 23 | 0.003 87 | 0.107 91 | 0.009 51 | 0.016 41 | 0.000 32 | 0.004 85 | 0.000 28 | 61.21 | 194.42 | 104.05 | 8.72 | 104.93 | 2.00 | |
ZT015-16 | 11.71 | 616.56 | 0.44 | 0.049 31 | 0.003 68 | 0.108 28 | 0.008 32 | 0.015 99 | 0.000 35 | 0.004 54 | 0.000 28 | 161.20 | 166.64 | 104.39 | 7.62 | 102.26 | 2.21 | |
ZT015-17 | 10.82 | 524.98 | 0.68 | 0.050 74 | 0.002 30 | 0.112 41 | 0.005 18 | 0.016 21 | 0.000 25 | 0.004 72 | 0.000 23 | 227.85 | 105.54 | 108.17 | 4.73 | 103.67 | 1.55 | |
ZT015-18 | 11.26 | 542.02 | 0.63 | 0.051 42 | 0.002 62 | 0.117 69 | 0.005 99 | 0.016 70 | 0.000 27 | 0.004 99 | 0.000 27 | 261.18 | 116.65 | 112.97 | 5.44 | 106.77 | 1.69 | |
ZT015-19 | 6.71 | 314.98 | 0.73 | 0.046 89 | 0.003 50 | 0.107 09 | 0.007 85 | 0.016 56 | 0.000 26 | 0.004 80 | 0.000 27 | 42.69 | 170.35 | 103.30 | 7.20 | 105.89 | 1.68 |
表2 钟腾铜矿床主要花岗质岩石锆石U-Pb同位素数据
Table 2 Summary of zircon U-Pb isotope dating of the granites from Zhongteng Cu deposit
点号 | wB/10-6 | Th/U | 同位素比值 | 年龄 | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pb | U | 207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | 208Pb/232Th | 1σ | 207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | |||
ZT008-4 | 12.29 | 645.67 | 0.43 | 0.049 01 | 0.002 22 | 0.108 96 | 0.005 47 | 0.016 08 | 0.000 28 | 0.004 94 | 0.000 24 | 146.38 | 105.54 | 105.01 | 5.01 | 102.85 | 1.79 | |
ZT008-5 | 9.00 | 443.69 | 0.53 | 0.047 78 | 0.002 47 | 0.104 60 | 0.005 01 | 0.016 15 | 0.000 27 | 0.004 94 | 0.000 24 | 87.13 | 118.50 | 101.01 | 4.60 | 103.27 | 1.74 | |
ZT008-6 | 9.07 | 442.92 | 0.60 | 0.046 31 | 0.002 78 | 0.100 61 | 0.005 68 | 0.016 03 | 0.000 30 | 0.005 17 | 0.000 25 | 13.06 | 137.03 | 97.34 | 5.24 | 102.51 | 1.92 | |
ZT008-7 | 7.44 | 371.24 | 0.49 | 0.047 69 | 0.002 23 | 0.105 79 | 0.005 10 | 0.016 18 | 0.000 27 | 0.005 01 | 0.000 22 | 83.43 | 107.40 | 102.11 | 4.68 | 103.45 | 1.69 | |
ZT008-8 | 7.26 | 347.89 | 0.65 | 0.051 18 | 0.002 57 | 0.111 85 | 0.005 59 | 0.016 00 | 0.000 25 | 0.004 84 | 0.000 22 | 255.62 | 116.65 | 107.65 | 5.11 | 102.34 | 1.56 | |
ZT008-9 | 6.54 | 309.08 | 0.70 | 0.049 49 | 0.003 48 | 0.107 38 | 0.007 23 | 0.016 01 | 0.000 30 | 0.004 90 | 0.000 24 | 172.31 | 155.53 | 103.57 | 6.63 | 102.36 | 1.91 | |
ZT008-10 | 15.85 | 772.36 | 0.60 | 0.047 99 | 0.001 76 | 0.107 50 | 0.004 41 | 0.016 13 | 0.000 23 | 0.004 66 | 0.000 21 | 98.24 | 87.03 | 103.68 | 4.04 | 103.16 | 1.45 | |
ZT008-11 | 15.79 | 776.27 | 0.58 | 0.047 50 | 0.001 93 | 0.106 39 | 0.004 68 | 0.016 15 | 0.000 24 | 0.004 70 | 0.000 21 | 76.02 | 92.58 | 102.65 | 4.29 | 103.28 | 1.52 | |
ZT008-12 | 11.70 | 576.34 | 0.56 | 0.047 61 | 0.002 28 | 0.106 74 | 0.004 96 | 0.016 34 | 0.000 26 | 0.004 67 | 0.000 21 | 79.72 | 111.10 | 102.98 | 4.55 | 104.48 | 1.68 | |
ZT008-13 | 6.72 | 313.77 | 0.81 | 0.046 14 | 0.003 17 | 0.102 51 | 0.006 71 | 0.016 30 | 0.000 28 | 0.004 42 | 0.000 19 | 400.05 | -238.86 | 99.09 | 6.18 | 104.20 | 1.76 | |
ZT008-14 | 21.66 | 1 056.46 | 0.60 | 0.048 84 | 0.001 77 | 0.109 53 | 0.004 03 | 0.016 26 | 0.000 20 | 0.004 47 | 0.000 18 | 138.98 | 89.80 | 105.53 | 3.68 | 103.97 | 1.26 | |
ZT008-15 | 8.15 | 399.92 | 0.53 | 0.049 08 | 0.003 30 | 0.106 19 | 0.006 11 | 0.016 13 | 0.000 29 | 0.005 03 | 0.000 24 | 150.09 | 151.83 | 102.47 | 5.61 | 103.13 | 1.83 | |
ZT008-17 | 18.08 | 871.92 | 0.60 | 0.049 40 | 0.001 97 | 0.111 11 | 0.004 33 | 0.016 43 | 0.000 24 | 0.004 90 | 0.000 21 | 164.90 | 89.80 | 106.98 | 3.96 | 105.05 | 1.50 | |
ZT008-18 | 7.20 | 351.91 | 0.58 | 0.052 04 | 0.002 87 | 0.115 72 | 0.006 19 | 0.016 31 | 0.000 27 | 0.004 79 | 0.000 23 | 287.10 | 121.28 | 111.18 | 5.63 | 104.32 | 1.71 | |
ZT008-19 | 9.42 | 421.85 | 0.94 | 0.047 16 | 0.002 79 | 0.103 93 | 0.005 82 | 0.016 17 | 0.000 26 | 0.004 78 | 0.000 23 | 57.50 | 133.32 | 100.40 | 5.36 | 103.39 | 1.66 | |
ZT008-20 | 21.83 | 1 024.93 | 0.74 | 0.047 19 | 0.001 90 | 0.105 25 | 0.004 17 | 0.016 20 | 0.000 23 | 0.004 62 | 0.000 23 | 57.50 | 96.29 | 101.61 | 3.83 | 103.62 | 1.43 | |
ZT009-1 | 19.44 | 826.88 | 1.35 | 0.049 92 | 0.001 75 | 0.109 27 | 0.003 93 | 0.015 88 | 0.000 20 | 0.004 03 | 0.000 38 | 190.82 | 113.87 | 105.29 | 3.60 | 101.58 | 1.27 | |
ZT009-5 | 18.63 | 808.67 | 1.28 | 0.048 07 | 0.001 54 | 0.105 76 | 0.003 32 | 0.016 02 | 0.000 20 | 0.004 43 | 0.000 27 | 101.94 | 71.29 | 102.08 | 3.05 | 102.46 | 1.25 | |
ZT009-6 | 12.62 | 573.78 | 1.07 | 0.048 07 | 0.001 71 | 0.104 76 | 0.003 69 | 0.015 89 | 0.000 20 | 0.004 57 | 0.000 25 | 101.94 | 83.33 | 101.16 | 3.40 | 101.64 | 1.29 | |
ZT009-7 | 10.69 | 603.07 | 0.23 | 0.049 09 | 0.002 11 | 0.106 78 | 0.004 45 | 0.015 85 | 0.000 24 | 0.004 96 | 0.000 30 | 153.79 | 97.21 | 103.02 | 4.08 | 101.35 | 1.53 | |
ZT009-8 | 12.22 | 558.91 | 1.06 | 0.049 99 | 0.002 01 | 0.109 43 | 0.004 68 | 0.015 80 | 0.000 21 | 0.004 80 | 0.000 23 | 194.53 | 94.43 | 105.45 | 4.28 | 101.07 | 1.33 | |
ZT009-10 | 16.45 | 701.60 | 1.36 | 0.047 85 | 0.001 99 | 0.104 66 | 0.004 09 | 0.015 99 | 0.000 19 | 0.004 93 | 0.000 22 | 100.09 | 87.03 | 101.07 | 3.76 | 102.25 | 1.19 | |
ZT009-11 | 7.60 | 367.43 | 0.91 | 0.047 68 | 0.004 47 | 0.099 30 | 0.008 05 | 0.015 37 | 0.000 49 | 0.005 30 | 0.000 30 | 83.43 | 216.64 | 96.13 | 7.43 | 98.32 | 3.12 | |
ZT009-12 | 14.96 | 658.04 | 1.24 | 0.052 45 | 0.002 12 | 0.114 35 | 0.004 37 | 0.015 92 | 0.000 22 | 0.004 95 | 0.000 20 | 305.62 | 92.58 | 109.94 | 3.98 | 101.81 | 1.38 | |
ZT009-13 | 16.01 | 711.56 | 1.12 | 0.051 55 | 0.001 68 | 0.115 25 | 0.003 68 | 0.016 26 | 0.000 19 | 0.005 04 | 0.000 19 | 264.88 | 74.06 | 110.75 | 3.35 | 104.00 | 1.20 | |
ZT009-14 | 20.63 | 910.81 | 1.24 | 0.046 96 | 0.001 67 | 0.102 28 | 0.003 50 | 0.015 86 | 0.000 18 | 0.004 95 | 0.000 17 | 55.65 | 75.92 | 98.87 | 3.22 | 101.41 | 1.11 | |
ZT009-15 | 8.42 | 392.27 | 0.94 | 0.049 06 | 0.002 61 | 0.106 95 | 0.005 43 | 0.015 98 | 0.000 23 | 0.005 16 | 0.000 19 | 150.09 | 156.46 | 103.17 | 4.98 | 102.19 | 1.47 | |
点号 | wB/10-6 | Th/U | 同位素比值 | 年龄/Ma | ||||||||||||||
Pb | U | 207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | 208Pb/232Th | 1σ | 207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | |||
ZT009-16 | 12.09 | 556.22 | 1.06 | 0.051 78 | 0.001 93 | 0.113 10 | 0.004 12 | 0.015 89 | 0.000 21 | 0.004 97 | 0.000 17 | 275.99 | 89.80 | 108.80 | 3.76 | 101.62 | 1.33 | |
ZT009-17 | 14.64 | 645.65 | 1.13 | 0.050 63 | 0.001 86 | 0.111 58 | 0.004 03 | 0.016 05 | 0.000 22 | 0.005 16 | 0.000 17 | 233.40 | 52.77 | 107.41 | 3.68 | 102.65 | 1.37 | |
ZT009-18 | 18.61 | 818.75 | 1.16 | 0.050 43 | 0.001 76 | 0.113 27 | 0.004 10 | 0.016 28 | 0.000 21 | 0.004 99 | 0.000 16 | 213.04 | 81.47 | 108.95 | 3.74 | 104.12 | 1.35 | |
ZT015-1 | 4.28 | 196.50 | 0.74 | 0.051 45 | 0.004 03 | 0.112 67 | 0.008 88 | 0.016 00 | 0.000 33 | 0.005 30 | 0.000 32 | 261.18 | 176.83 | 108.41 | 8.11 | 102.33 | 2.10 | |
ZT015-2 | 13.40 | 622.93 | 0.79 | 0.051 64 | 0.002 26 | 0.112 72 | 0.005 18 | 0.015 81 | 0.000 24 | 0.004 98 | 0.000 26 | 333.39 | 99.99 | 108.45 | 4.73 | 101.12 | 1.55 | |
ZT015-3 | 19.91 | 1 000.48 | 0.56 | 0.049 73 | 0.001 71 | 0.106 77 | 0.003 64 | 0.015 64 | 0.000 20 | 0.004 82 | 0.000 23 | 188.97 | 79.62 | 103.01 | 3.34 | 100.07 | 1.24 | |
ZT015-4 | 9.69 | 468.12 | 0.65 | 0.053 63 | 0.002 54 | 0.118 72 | 0.005 74 | 0.016 12 | 0.000 26 | 0.004 89 | 0.000 25 | 353.76 | 100.92 | 113.91 | 5.21 | 103.09 | 1.66 | |
ZT015-5 | 17.68 | 846.57 | 0.78 | 0.049 87 | 0.002 18 | 0.108 45 | 0.004 75 | 0.015 84 | 0.000 21 | 0.004 73 | 0.000 22 | 190.82 | 101.84 | 104.55 | 4.35 | 101.31 | 1.35 | |
ZT015-6 | 19.92 | 962.89 | 0.56 | 0.051 91 | 0.001 86 | 0.115 16 | 0.003 99 | 0.016 29 | 0.000 25 | 0.005 33 | 0.000 25 | 279.69 | 81.47 | 110.68 | 3.63 | 104.14 | 1.57 | |
ZT015-7 | 9.18 | 433.85 | 0.70 | 0.049 24 | 0.002 70 | 0.109 53 | 0.006 09 | 0.016 25 | 0.000 25 | 0.005 31 | 0.000 28 | 166.75 | 124.98 | 105.54 | 5.58 | 103.92 | 1.62 | |
ZT015-8 | 11.21 | 525.87 | 0.72 | 0.046 62 | 0.003 08 | 0.102 55 | 0.006 40 | 0.016 20 | 0.000 25 | 0.005 16 | 0.000 27 | 31.58 | 157.39 | 99.12 | 5.89 | 103.57 | 1.56 | |
ZT015-9 | 9.71 | 454.50 | 0.71 | 0.050 38 | 0.002 44 | 0.112 46 | 0.005 53 | 0.016 35 | 0.000 24 | 0.004 98 | 0.000 26 | 213.04 | 112.95 | 108.21 | 5.05 | 104.52 | 1.49 | |
ZT015-10 | 4.79 | 222.60 | 0.77 | 0.054 30 | 0.004 34 | 0.117 59 | 0.009 63 | 0.016 11 | 0.000 37 | 0.005 28 | 0.000 32 | 383.39 | 179.61 | 112.88 | 8.75 | 103.02 | 2.33 | |
ZT015-11 | 6.68 | 320.19 | 0.74 | 0.053 53 | 0.004 33 | 0.113 76 | 0.008 54 | 0.015 88 | 0.000 33 | 0.004 79 | 0.000 30 | 350.06 | 178.68 | 109.40 | 7.78 | 101.58 | 2.07 | |
ZT015-12 | 20.47 | 1 002.70 | 0.64 | 0.049 01 | 0.001 80 | 0.107 56 | 0.003 94 | 0.016 01 | 0.000 21 | 0.004 89 | 0.000 26 | 150.09 | 85.17 | 103.73 | 3.61 | 102.41 | 1.34 | |
ZT015-13 | 5.23 | 249.41 | 0.79 | 0.050 99 | 0.003 51 | 0.112 61 | 0.008 16 | 0.015 94 | 0.000 33 | 0.004 43 | 0.000 26 | 238.96 | 159.24 | 108.35 | 7.44 | 101.95 | 2.10 | |
ZT015-14 | 21.31 | 1 045.53 | 0.62 | 0.048 71 | 0.001 89 | 0.108 13 | 0.004 32 | 0.016 16 | 0.000 22 | 0.004 88 | 0.000 23 | 200.08 | 97.21 | 104.26 | 3.96 | 103.37 | 1.38 | |
ZT015-15 | 9.64 | 478.12 | 0.56 | 0.047 23 | 0.003 87 | 0.107 91 | 0.009 51 | 0.016 41 | 0.000 32 | 0.004 85 | 0.000 28 | 61.21 | 194.42 | 104.05 | 8.72 | 104.93 | 2.00 | |
ZT015-16 | 11.71 | 616.56 | 0.44 | 0.049 31 | 0.003 68 | 0.108 28 | 0.008 32 | 0.015 99 | 0.000 35 | 0.004 54 | 0.000 28 | 161.20 | 166.64 | 104.39 | 7.62 | 102.26 | 2.21 | |
ZT015-17 | 10.82 | 524.98 | 0.68 | 0.050 74 | 0.002 30 | 0.112 41 | 0.005 18 | 0.016 21 | 0.000 25 | 0.004 72 | 0.000 23 | 227.85 | 105.54 | 108.17 | 4.73 | 103.67 | 1.55 | |
ZT015-18 | 11.26 | 542.02 | 0.63 | 0.051 42 | 0.002 62 | 0.117 69 | 0.005 99 | 0.016 70 | 0.000 27 | 0.004 99 | 0.000 27 | 261.18 | 116.65 | 112.97 | 5.44 | 106.77 | 1.69 | |
ZT015-19 | 6.71 | 314.98 | 0.73 | 0.046 89 | 0.003 50 | 0.107 09 | 0.007 85 | 0.016 56 | 0.000 26 | 0.004 80 | 0.000 27 | 42.69 | 170.35 | 103.30 | 7.20 | 105.89 | 1.68 |
样品点号 | 176Yb/177Hf | 2σ | 176Lu/177Hf | 2σ | 176Hf/177Hf | 2σ | εHf(0) | εHf(t) | TDM1/Ga | TDM2/Ga | fLu/Hf |
---|---|---|---|---|---|---|---|---|---|---|---|
ZT008-1 | 0.029 852 | 0.000 595 | 0.000 831 | 0.000 016 | 0.282 701 | 0.000 021 | -2.5 | -0.4 | 0.778 | 1.188 | -0.97 |
ZT008-2 | 0.019 257 | 0.000 210 | 0.000 567 | 0.000 006 | 0.282 711 | 0.000 017 | -2.2 | 0.0 | 0.758 | 1.164 | -0.98 |
ZT008-3 | 0.036 323 | 0.000 072 | 0.001 026 | 0.000 002 | 0.282 673 | 0.000 021 | -3.5 | -1.4 | 0.821 | 1.251 | -0.97 |
ZT008-4 | 0.032 715 | 0.000 239 | 0.000 944 | 0.000 007 | 0.282 682 | 0.000 018 | -3.2 | -1.0 | 0.806 | 1.229 | -0.97 |
ZT008-5 | 0.030 419 | 0.000 157 | 0.000 917 | 0.000 005 | 0.282 735 | 0.000 019 | -1.3 | 0.9 | 0.731 | 1.109 | -0.97 |
ZT008-6 | 0.023 362 | 0.000 086 | 0.000 674 | 0.000 002 | 0.282 695 | 0.000 019 | -2.7 | -0.5 | 0.783 | 1.199 | -0.98 |
ZT008-7 | 0.020 024 | 0.000 029 | 0.000 577 | 0.000 001 | 0.282 664 | 0.000 019 | -3.8 | -1.6 | 0.824 | 1.268 | -0.98 |
ZT008-8 | 0.029 711 | 0.000 222 | 0.000 947 | 0.000 011 | 0.282 701 | 0.000 020 | -2.5 | -0.3 | 0.780 | 1.187 | -0.97 |
ZT008-9 | 0.022 133 | 0.000 154 | 0.000 663 | 0.000 006 | 0.282 627 | 0.000 019 | -5.1 | -2.9 | 0.877 | 1.352 | -0.98 |
ZT008-10 | 0.029 250 | 0.000 086 | 0.000 888 | 0.000 001 | 0.282 708 | 0.000 018 | -2.3 | -0.1 | 0.769 | 1.171 | -0.97 |
ZT008-11 | 0.035 760 | 0.000 463 | 0.001 000 | 0.000 015 | 0.282 731 | 0.000 017 | -1.5 | 0.7 | 0.739 | 1.119 | -0.97 |
ZT008-12 | 0.030 878 | 0.000 612 | 0.000 923 | 0.000 020 | 0.282 690 | 0.000 016 | -2.9 | -0.7 | 0.794 | 1.209 | -0.97 |
ZT008-13 | 0.028 494 | 0.000 045 | 0.000 850 | 0.000 002 | 0.282 722 | 0.000 019 | -1.8 | 0.5 | 0.748 | 1.137 | -0.97 |
ZT008-14 | 0.024 626 | 0.000 121 | 0.000 762 | 0.000 001 | 0.282 660 | 0.000 016 | -4.0 | -1.7 | 0.833 | 1.277 | -0.98 |
ZT008-15 | 0.022 089 | 0.000 120 | 0.000 668 | 0.000 003 | 0.282 686 | 0.000 016 | -3.0 | -0.8 | 0.795 | 1.218 | -0.98 |
ZT009-1 | 0.036 718 | 0.000 198 | 0.001 089 | 0.000 007 | 0.282 715 | 0.000 016 | -2.0 | 0.1 | 0.763 | 1.156 | -0.97 |
ZT009-2 | 0.050 587 | 0.000 366 | 0.001 642 | 0.000 014 | 0.282 722 | 0.000 022 | -1.8 | 0.6 | 0.763 | 1.135 | -0.95 |
ZT009-3 | 0.030 563 | 0.000 165 | 0.000 897 | 0.000 003 | 0.282 687 | 0.000 016 | -3.0 | -0.6 | 0.798 | 1.211 | -0.97 |
ZT009-4 | 0.018 010 | 0.000 123 | 0.000 602 | 0.000 003 | 0.282 716 | 0.000 022 | -2.0 | 0.5 | 0.751 | 1.144 | -0.98 |
ZT009-5 | 0.030 105 | 0.000 111 | 0.000 933 | 0.000 007 | 0.282 733 | 0.000 020 | -1.4 | 0.8 | 0.734 | 1.114 | -0.97 |
ZT009-6 | 0.032 617 | 0.000 382 | 0.000 930 | 0.000 008 | 0.282 689 | 0.000 020 | -2.9 | -0.8 | 0.797 | 1.214 | -0.97 |
ZT009-7 | 0.033 996 | 0.000 132 | 0.001 054 | 0.000 006 | 0.282 710 | 0.000 021 | -2.2 | 0.0 | 0.769 | 1.167 | -0.97 |
ZT009-8 | 0.029 791 | 0.000 091 | 0.000 787 | 0.000 001 | 0.282 661 | 0.000 019 | -3.9 | -1.8 | 0.833 | 1.277 | -0.98 |
ZT009-10 | 0.043 277 | 0.000 642 | 0.001 211 | 0.000 013 | 0.282 691 | 0.000 020 | -2.9 | -0.7 | 0.800 | 1.211 | -0.96 |
ZT009-11 | 0.033 692 | 0.000 541 | 0.000 891 | 0.000 016 | 0.282 708 | 0.000 020 | -2.3 | -0.2 | 0.768 | 1.172 | -0.97 |
ZT009-12 | 0.031 675 | 0.000 864 | 0.000 867 | 0.000 020 | 0.282 681 | 0.000 019 | -3.2 | -1.0 | 0.805 | 1.230 | -0.97 |
ZT009-13 | 0.050 184 | 0.000 315 | 0.001 371 | 0.000 015 | 0.282 670 | 0.000 021 | -3.6 | -1.4 | 0.832 | 1.256 | -0.96 |
ZT009-14 | 0.042 871 | 0.000 265 | 0.001 358 | 0.000 014 | 0.282 687 | 0.000 021 | -3.0 | -0.9 | 0.807 | 1.219 | -0.96 |
ZT015-1 | 0.033 387 | 0.000 027 | 0.000 883 | 0.000 004 | 0.282 760 | 0.000 019 | -0.4 | 1.8 | 0.695 | 1.053 | -0.97 |
ZT015-2 | 0.045 225 | 0.000 112 | 0.001 164 | 0.000 003 | 0.282 682 | 0.000 020 | -3.2 | -1.0 | 0.811 | 1.230 | -0.96 |
ZT015-3 | 0.024 279 | 0.000 184 | 0.000 635 | 0.000 006 | 0.282 653 | 0.000 023 | -4.2 | -2.1 | 0.840 | 1.294 | -0.98 |
ZT015-4 | 0.023 935 | 0.000 321 | 0.000 626 | 0.000 006 | 0.282 698 | 0.000 019 | -2.6 | -0.4 | 0.778 | 1.192 | -0.98 |
ZT015-5 | 0.043 049 | 0.000 118 | 0.001 120 | 0.000 004 | 0.282 767 | 0.000 021 | -0.2 | 2.0 | 0.689 | 1.038 | -0.97 |
ZT015-6 | 0.025 123 | 0.000 448 | 0.000 644 | 0.000 009 | 0.282 687 | 0.000 019 | -3.0 | -0.8 | 0.792 | 1.215 | -0.98 |
ZT015-7 | 0.023 937 | 0.000 148 | 0.000 653 | 0.000 005 | 0.282 697 | 0.000 019 | -2.7 | -0.4 | 0.779 | 1.193 | -0.98 |
ZT015-8 | 0.050 587 | 0.000 795 | 0.001 382 | 0.000 022 | 0.282 697 | 0.000 021 | -2.7 | -0.5 | 0.794 | 1.197 | -0.96 |
ZT015-9 | 0.022 838 | 0.000 075 | 0.000 601 | 0.000 002 | 0.282 691 | 0.000 022 | -2.9 | -0.6 | 0.787 | 1.206 | -0.98 |
ZT015-10 | 0.027 179 | 0.000 098 | 0.000 703 | 0.000 001 | 0.282 705 | 0.000 020 | -2.4 | -0.2 | 0.769 | 1.175 | -0.98 |
ZT015-11 | 0.032 755 | 0.000 098 | 0.000 955 | 0.000 002 | 0.282 667 | 0.000 021 | -3.7 | -1.6 | 0.828 | 1.264 | -0.97 |
ZT015-12 | 0.025 922 | 0.000 046 | 0.000 681 | 0.000 002 | 0.282 745 | 0.000 021 | -0.9 | 1.3 | 0.712 | 1.085 | -0.98 |
ZT015-13 | 0.036 661 | 0.000 087 | 0.000 951 | 0.000 003 | 0.282 705 | 0.000 020 | -2.4 | -0.2 | 0.774 | 1.178 | -0.97 |
ZT015-14 | 0.025 454 | 0.000 309 | 0.000 668 | 0.000 005 | 0.282 705 | 0.000 019 | -2.4 | -0.1 | 0.768 | 1.175 | -0.98 |
ZT015-15 | 0.025 654 | 0.000 304 | 0.000 748 | 0.000 008 | 0.282 705 | 0.000 021 | -2.4 | -0.1 | 0.769 | 1.174 | -0.98 |
表3 钟腾铜矿床主要花岗岩体锆石LA-ICP-MS Lu-Hf同位素分析结果
Table 3 LA-ICP-MS in-situ analyses of zircon Lu-Hf isotopic composition of Zhongteng Cu deposit
样品点号 | 176Yb/177Hf | 2σ | 176Lu/177Hf | 2σ | 176Hf/177Hf | 2σ | εHf(0) | εHf(t) | TDM1/Ga | TDM2/Ga | fLu/Hf |
---|---|---|---|---|---|---|---|---|---|---|---|
ZT008-1 | 0.029 852 | 0.000 595 | 0.000 831 | 0.000 016 | 0.282 701 | 0.000 021 | -2.5 | -0.4 | 0.778 | 1.188 | -0.97 |
ZT008-2 | 0.019 257 | 0.000 210 | 0.000 567 | 0.000 006 | 0.282 711 | 0.000 017 | -2.2 | 0.0 | 0.758 | 1.164 | -0.98 |
ZT008-3 | 0.036 323 | 0.000 072 | 0.001 026 | 0.000 002 | 0.282 673 | 0.000 021 | -3.5 | -1.4 | 0.821 | 1.251 | -0.97 |
ZT008-4 | 0.032 715 | 0.000 239 | 0.000 944 | 0.000 007 | 0.282 682 | 0.000 018 | -3.2 | -1.0 | 0.806 | 1.229 | -0.97 |
ZT008-5 | 0.030 419 | 0.000 157 | 0.000 917 | 0.000 005 | 0.282 735 | 0.000 019 | -1.3 | 0.9 | 0.731 | 1.109 | -0.97 |
ZT008-6 | 0.023 362 | 0.000 086 | 0.000 674 | 0.000 002 | 0.282 695 | 0.000 019 | -2.7 | -0.5 | 0.783 | 1.199 | -0.98 |
ZT008-7 | 0.020 024 | 0.000 029 | 0.000 577 | 0.000 001 | 0.282 664 | 0.000 019 | -3.8 | -1.6 | 0.824 | 1.268 | -0.98 |
ZT008-8 | 0.029 711 | 0.000 222 | 0.000 947 | 0.000 011 | 0.282 701 | 0.000 020 | -2.5 | -0.3 | 0.780 | 1.187 | -0.97 |
ZT008-9 | 0.022 133 | 0.000 154 | 0.000 663 | 0.000 006 | 0.282 627 | 0.000 019 | -5.1 | -2.9 | 0.877 | 1.352 | -0.98 |
ZT008-10 | 0.029 250 | 0.000 086 | 0.000 888 | 0.000 001 | 0.282 708 | 0.000 018 | -2.3 | -0.1 | 0.769 | 1.171 | -0.97 |
ZT008-11 | 0.035 760 | 0.000 463 | 0.001 000 | 0.000 015 | 0.282 731 | 0.000 017 | -1.5 | 0.7 | 0.739 | 1.119 | -0.97 |
ZT008-12 | 0.030 878 | 0.000 612 | 0.000 923 | 0.000 020 | 0.282 690 | 0.000 016 | -2.9 | -0.7 | 0.794 | 1.209 | -0.97 |
ZT008-13 | 0.028 494 | 0.000 045 | 0.000 850 | 0.000 002 | 0.282 722 | 0.000 019 | -1.8 | 0.5 | 0.748 | 1.137 | -0.97 |
ZT008-14 | 0.024 626 | 0.000 121 | 0.000 762 | 0.000 001 | 0.282 660 | 0.000 016 | -4.0 | -1.7 | 0.833 | 1.277 | -0.98 |
ZT008-15 | 0.022 089 | 0.000 120 | 0.000 668 | 0.000 003 | 0.282 686 | 0.000 016 | -3.0 | -0.8 | 0.795 | 1.218 | -0.98 |
ZT009-1 | 0.036 718 | 0.000 198 | 0.001 089 | 0.000 007 | 0.282 715 | 0.000 016 | -2.0 | 0.1 | 0.763 | 1.156 | -0.97 |
ZT009-2 | 0.050 587 | 0.000 366 | 0.001 642 | 0.000 014 | 0.282 722 | 0.000 022 | -1.8 | 0.6 | 0.763 | 1.135 | -0.95 |
ZT009-3 | 0.030 563 | 0.000 165 | 0.000 897 | 0.000 003 | 0.282 687 | 0.000 016 | -3.0 | -0.6 | 0.798 | 1.211 | -0.97 |
ZT009-4 | 0.018 010 | 0.000 123 | 0.000 602 | 0.000 003 | 0.282 716 | 0.000 022 | -2.0 | 0.5 | 0.751 | 1.144 | -0.98 |
ZT009-5 | 0.030 105 | 0.000 111 | 0.000 933 | 0.000 007 | 0.282 733 | 0.000 020 | -1.4 | 0.8 | 0.734 | 1.114 | -0.97 |
ZT009-6 | 0.032 617 | 0.000 382 | 0.000 930 | 0.000 008 | 0.282 689 | 0.000 020 | -2.9 | -0.8 | 0.797 | 1.214 | -0.97 |
ZT009-7 | 0.033 996 | 0.000 132 | 0.001 054 | 0.000 006 | 0.282 710 | 0.000 021 | -2.2 | 0.0 | 0.769 | 1.167 | -0.97 |
ZT009-8 | 0.029 791 | 0.000 091 | 0.000 787 | 0.000 001 | 0.282 661 | 0.000 019 | -3.9 | -1.8 | 0.833 | 1.277 | -0.98 |
ZT009-10 | 0.043 277 | 0.000 642 | 0.001 211 | 0.000 013 | 0.282 691 | 0.000 020 | -2.9 | -0.7 | 0.800 | 1.211 | -0.96 |
ZT009-11 | 0.033 692 | 0.000 541 | 0.000 891 | 0.000 016 | 0.282 708 | 0.000 020 | -2.3 | -0.2 | 0.768 | 1.172 | -0.97 |
ZT009-12 | 0.031 675 | 0.000 864 | 0.000 867 | 0.000 020 | 0.282 681 | 0.000 019 | -3.2 | -1.0 | 0.805 | 1.230 | -0.97 |
ZT009-13 | 0.050 184 | 0.000 315 | 0.001 371 | 0.000 015 | 0.282 670 | 0.000 021 | -3.6 | -1.4 | 0.832 | 1.256 | -0.96 |
ZT009-14 | 0.042 871 | 0.000 265 | 0.001 358 | 0.000 014 | 0.282 687 | 0.000 021 | -3.0 | -0.9 | 0.807 | 1.219 | -0.96 |
ZT015-1 | 0.033 387 | 0.000 027 | 0.000 883 | 0.000 004 | 0.282 760 | 0.000 019 | -0.4 | 1.8 | 0.695 | 1.053 | -0.97 |
ZT015-2 | 0.045 225 | 0.000 112 | 0.001 164 | 0.000 003 | 0.282 682 | 0.000 020 | -3.2 | -1.0 | 0.811 | 1.230 | -0.96 |
ZT015-3 | 0.024 279 | 0.000 184 | 0.000 635 | 0.000 006 | 0.282 653 | 0.000 023 | -4.2 | -2.1 | 0.840 | 1.294 | -0.98 |
ZT015-4 | 0.023 935 | 0.000 321 | 0.000 626 | 0.000 006 | 0.282 698 | 0.000 019 | -2.6 | -0.4 | 0.778 | 1.192 | -0.98 |
ZT015-5 | 0.043 049 | 0.000 118 | 0.001 120 | 0.000 004 | 0.282 767 | 0.000 021 | -0.2 | 2.0 | 0.689 | 1.038 | -0.97 |
ZT015-6 | 0.025 123 | 0.000 448 | 0.000 644 | 0.000 009 | 0.282 687 | 0.000 019 | -3.0 | -0.8 | 0.792 | 1.215 | -0.98 |
ZT015-7 | 0.023 937 | 0.000 148 | 0.000 653 | 0.000 005 | 0.282 697 | 0.000 019 | -2.7 | -0.4 | 0.779 | 1.193 | -0.98 |
ZT015-8 | 0.050 587 | 0.000 795 | 0.001 382 | 0.000 022 | 0.282 697 | 0.000 021 | -2.7 | -0.5 | 0.794 | 1.197 | -0.96 |
ZT015-9 | 0.022 838 | 0.000 075 | 0.000 601 | 0.000 002 | 0.282 691 | 0.000 022 | -2.9 | -0.6 | 0.787 | 1.206 | -0.98 |
ZT015-10 | 0.027 179 | 0.000 098 | 0.000 703 | 0.000 001 | 0.282 705 | 0.000 020 | -2.4 | -0.2 | 0.769 | 1.175 | -0.98 |
ZT015-11 | 0.032 755 | 0.000 098 | 0.000 955 | 0.000 002 | 0.282 667 | 0.000 021 | -3.7 | -1.6 | 0.828 | 1.264 | -0.97 |
ZT015-12 | 0.025 922 | 0.000 046 | 0.000 681 | 0.000 002 | 0.282 745 | 0.000 021 | -0.9 | 1.3 | 0.712 | 1.085 | -0.98 |
ZT015-13 | 0.036 661 | 0.000 087 | 0.000 951 | 0.000 003 | 0.282 705 | 0.000 020 | -2.4 | -0.2 | 0.774 | 1.178 | -0.97 |
ZT015-14 | 0.025 454 | 0.000 309 | 0.000 668 | 0.000 005 | 0.282 705 | 0.000 019 | -2.4 | -0.1 | 0.768 | 1.175 | -0.98 |
ZT015-15 | 0.025 654 | 0.000 304 | 0.000 748 | 0.000 008 | 0.282 705 | 0.000 021 | -2.4 | -0.1 | 0.769 | 1.174 | -0.98 |
样品名 | 净重/g | Re含量/(ng/g) | 普Os含量/(ng/g) | 187Re含量/(ng/g) | 187Os含量/(ng/g) | 模式年龄/Ma | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
测定值 | 不确定度 | 测定值 | 不确定度 | 测定值 | 不确定度 | 测定值 | 不确定度 | 测定值 | 不确定度 | ||||||
ZT005-1 | 0.120 30 | 318 77 | 634 | 0.004 3 | 0.000 2 | 20 035 | 398 | 35.04 | 0.20 | 104.88 | 2.40 | ||||
ZT005-2 | 0.120 00 | 31 333 | 622 | 0.008 1 | 0.000 2 | 19 693 | 391 | 34.26 | 0.20 | 104.32 | 2.39 | ||||
ZT005-3 | 0.120 87 | 39 412 | 930 | 0.006 1 | 0.000 2 | 24 771 | 585 | 43.68 | 0.25 | 105.75 | 2.77 | ||||
ZT005-4 | 0.120 75 | 32 760 | 671 | 0.004 2 | 0.000 2 | 20 590 | 422 | 35.80 | 0.20 | 104.28 | 2.44 | ||||
ZT005-5 | 0.120 51 | 37 263 | 850 | 0.006 1 | 0.000 2 | 23 420 | 534 | 41.25 | 0.23 | 105.62 | 2.69 |
表4 钟腾铜矿床辉钼矿Re-Os同位素年龄测试结果
Table 4 Summary of Re-Os isotopic dating of molybdenite from Zhongteng Cu deposit
样品名 | 净重/g | Re含量/(ng/g) | 普Os含量/(ng/g) | 187Re含量/(ng/g) | 187Os含量/(ng/g) | 模式年龄/Ma | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
测定值 | 不确定度 | 测定值 | 不确定度 | 测定值 | 不确定度 | 测定值 | 不确定度 | 测定值 | 不确定度 | ||||||
ZT005-1 | 0.120 30 | 318 77 | 634 | 0.004 3 | 0.000 2 | 20 035 | 398 | 35.04 | 0.20 | 104.88 | 2.40 | ||||
ZT005-2 | 0.120 00 | 31 333 | 622 | 0.008 1 | 0.000 2 | 19 693 | 391 | 34.26 | 0.20 | 104.32 | 2.39 | ||||
ZT005-3 | 0.120 87 | 39 412 | 930 | 0.006 1 | 0.000 2 | 24 771 | 585 | 43.68 | 0.25 | 105.75 | 2.77 | ||||
ZT005-4 | 0.120 75 | 32 760 | 671 | 0.004 2 | 0.000 2 | 20 590 | 422 | 35.80 | 0.20 | 104.28 | 2.44 | ||||
ZT005-5 | 0.120 51 | 37 263 | 850 | 0.006 1 | 0.000 2 | 23 420 | 534 | 41.25 | 0.23 | 105.62 | 2.69 |
图12 钟腾铜矿主要花岗岩的Rb/Ba-Rb/Sr(a)和CaO/Na2O-Al2O3/TiO2(b)图解
Fig.12 Rb/Ba-Rb/Sr diagram(a)and CaO/Na2O-Al2O3/TiO2 diagram (b) for the granites from Zhongteng copper deposit
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