地学前缘 ›› 2020, Vol. 27 ›› Issue (2): 373-390.DOI: 10.13745/j.esf.sf.2020.3.27
甄世民1,2,3(), 庞振山1,2,*(
), 朱晓强3, 薛建玲1,2, 方永财4, 贾宏翔3, 石光耀3, 王大钊3, 查钟健3, 宋晓航3
收稿日期:
2019-11-16
修回日期:
2019-12-18
出版日期:
2020-03-25
发布日期:
2020-03-25
通信作者:
庞振山
作者简介:
甄世民(1984─),男,高级工程师,主要从事矿床学和矿床地球化学研究。E-mail: zhenshimin0001@163.com
基金资助:
ZHEN Shimin1,2,3(), PANG Zhenshan1,2,*(
), ZHU Xiaoqiang3, XUE Jianling1,2, FANG Yongcai4, JIA Hongxiang3, SHI Guangyao3, WANG Dazhao3, ZHA Zhongjian3, SONG Xiaohang3
Received:
2019-11-16
Revised:
2019-12-18
Online:
2020-03-25
Published:
2020-03-25
Contact:
PANG Zhenshan
摘要:
山西梨园金矿是近年华北克拉通内部金矿找矿的新进展,其矿化样式多,具有较高的研究价值。梨园金矿赋存于太古宙阜平群片麻岩和混合岩化花岗岩中,受区内北北东向断裂控制,主要由爆破角砾岩型的1号矿体和石英脉型的2号矿体组成。矿石矿物主要为黄铁矿、方铅矿和闪锌矿等,脉石矿物主要为石英、绢云母、钾长石等,蚀变类型主要为硅化、钾长石化、绢云母化、绿泥石化等。黄铁矿、黄铜矿和闪锌矿δ34S值为0.9‰~4.3‰,平均值为3.0‰,说明硫源主要来自岩浆;方铅矿δ34S值为-12.8‰~1.4‰,平均值为-4.2‰,pH值升高可能是造成方铅矿高负δ34S值的原因。金属硫化物Pb同位素变化范围较小,206Pb/204Pb为16.697~16.890,207Pb/204Pb为15.239~15.267,208Pb/204Pb为42.186~45.334,均落入下地壳演化线附近,表明成矿流体运移过程中可能淋滤了富Th的下地壳物质。黄铁矿的3He/4He为0.27~1.04 Ra,40Ar/36Ar为1 194.61~5 488.80,38Ar/36Ar为0.204~0.218,表明成矿流体主要来源于地壳,部分来源于地幔流体,具有壳幔混合的岩浆流体特点。微量元素特征显示黄铁矿具有岩浆热液型黄铁矿的特点,辉绿岩脉和石英斑岩的部分物质可能加入了成矿过程。文章认为梨园金矿为与浅成岩浆侵入作用相关的岩浆热液型金矿床,爆破角砾岩型和石英脉型矿体不同的沉淀机制和矿物结晶过程是导致二者REE含量、S-Pb-He-Ar同位素等方面存在差异的主要原因。梨园金矿深部具有寻找细脉浸染型矿体的可能,其成矿作用是太行山中部地区燕山期构造岩浆活动的又一具体表现。
中图分类号:
甄世民, 庞振山, 朱晓强, 薛建玲, 方永财, 贾宏翔, 石光耀, 王大钊, 查钟健, 宋晓航. 山西梨园金矿黄铁矿微量元素及S-Pb-He-Ar同位素地球化学特征及其地质意义[J]. 地学前缘, 2020, 27(2): 373-390.
ZHEN Shimin, PANG Zhenshan, ZHU Xiaoqiang, XUE Jianling, FANG Yongcai, JIA Hongxiang, SHI Guangyao, WANG Dazhao, ZHA Zhongjian, SONG Xiaohang. The characteristics of trace elements and S, Pb, He and Ar isotopes in the Liyuan gold deposit in Shanxi Province, and their significance[J]. Earth Science Frontiers, 2020, 27(2): 373-390.
图3 梨园金矿地质简图(a)和A-A'剖面图(b)(底图据[52]修编)
Fig.3 Geological map of the Liyuan gold deposit (a) and A-A' cross section of the Liyuan gold deposit showing the geometry of orebodies (b). Modified from [52].
图4 梨园金矿十三中段地质平面简图(a)和22勘探线剖面示意图(b)(底图据梨园金矿矿山生产图件修编)
Fig.4 Geological map of the 13th middle section of the Liyuan gold mine (a) and the profile of exploration line 22 (b)
图5 梨园金矿矿体、矿石、矿物典型照片 a—1号矿体总体特征;b—2号矿体总体特征;c—辉绿岩中发育的含金石英脉;d—早阶段,角砾状矿石,胶结物为石英、黄铁矿;e—早阶段,石英-黄铁矿矿石;f—中阶段,角砾状矿石,角砾为片麻岩、钾长石花岗岩,胶结物为石英、黄铁矿、方铅矿;g—中阶段,石英多金属硫化物矿石,硫化物主要为黄铁矿、方铅矿;h—蚀变钾长花岗岩中的石英、黄铁矿和方铅矿;i—晚阶段,主要为石英、方解石;j—发育于石英中的自然金;k—石英穿插早期的黄铁矿;l—黄铁矿、石英、白云母。Au#1—1号矿体;Au#2—2号矿体;βμ—辉绿岩;Bre—角砾;Py—黄铁矿;Gn—方铅矿;Au—自然金;Qtz—石英;Ms—白云母;Cb—碳酸盐矿物。
Fig.5 Typical pictures of orebodies, ores, and minerals in the Liyuan gold deposit
编号 | 样品号 | 采样位置 | 矿石/岩石类型 |
---|---|---|---|
1 | LYC-5-2 | 矿区13中段2#矿体 | 石英脉型矿体 |
2 | LYC-9 | 矿区14中段1#矿体 | 角砾岩型矿体 |
3 | LYC-10 | 矿区14中段1#矿体 | 角砾岩型矿体 |
4 | LYC-11 | 矿区14中段1#矿体 | 角砾岩型矿体 |
5 | LYC-12 | 矿区14中段1#矿体 | 角砾岩型矿体 |
6 | LYC-13-2 | 矿区13中段1#矿体 | 角砾岩型矿体 |
7 | LYC-15-2 | 矿区外围,四里四村 | 花岗斑岩 |
8 | LYC-16-2 | 矿区外围,四里四村 | 花岗斑岩 |
9 | LYC-17-1 | 矿区外围,四里四村 | 花岗斑岩 |
10 | LYC-17-2 | 矿区外围,四里四村 | 花岗斑岩 |
11 | LYC-17-3 | 矿区外围,四里四村 | 花岗斑岩 |
12 | LYC-17-4 | 矿区外围,四里四村 | 花岗斑岩 |
13 | LYC-19-1 | 矿区外围,四里四村 | 花岗斑岩 |
14 | LYC-19-2 | 矿区外围,四里四村 | 花岗斑岩 |
15 | LYC-20 | 矿区外围,四里四村 | 花岗斑岩 |
16 | LYC-21-1 | 矿区16中段2#矿体 | 石英脉型矿体 |
17 | LYC-26-1 | 矿区 | 石英斑岩 |
18 | LYC-29 | 矿区14中段1#矿体 | 石英脉型矿体 |
19 | LYC-32 | 矿区14中段1#矿体 | 角砾岩型矿体 |
20 | LYC-33 | 矿区14中段2#矿体 | 石英脉型矿体 |
21 | LYC-34 | 矿区14中段2#矿体 | 石英脉型矿体 |
22 | LYC-36 | 矿区11中段2#矿体 | 石英脉型矿体 |
23 | LYC-37 | 矿区11中段2#矿体 | 石英脉型矿体 |
24 | LYC-38 | 矿区16中段2#矿体 | 石英脉型矿体 |
25 | LYC-39-1 | 矿区16中段1#矿体 | 角砾岩型矿体 |
26 | LYC-39-2 | 矿区16中段1#矿体 | 角砾岩型矿体 |
27 | LYC-41 | 矿区16中段1#矿体 | 角砾岩型矿体 |
28 | LYC-42 | 矿区16中段1#矿体 | 角砾岩型矿体 |
29 | LYC-45 | 矿区16中段1#矿体 | 角砾岩型矿体 |
30 | LYC-47 | 矿区16中段1#矿体 | 角砾岩型矿体 |
31 | LYC-50 | 矿区16中段1#矿体 | 角砾岩型矿体 |
32 | LYC-51 | 矿区16中段1#矿体 | 角砾岩型矿体 |
33 | LYC-55 | 矿区16中段1#矿体 | 角砾岩型矿体 |
34 | LYC-57 | 矿区13中段1#矿体 | 角砾岩型矿体 |
35 | LYC-58 | 矿区13中段1#矿体 | 角砾岩型矿体 |
36 | LYC-60 | 矿区15中段1#矿体 | 角砾岩型矿体 |
表1 梨园金矿分析样品特征表
Table 1 Feature of samples from the Liyuan gold deposit
编号 | 样品号 | 采样位置 | 矿石/岩石类型 |
---|---|---|---|
1 | LYC-5-2 | 矿区13中段2#矿体 | 石英脉型矿体 |
2 | LYC-9 | 矿区14中段1#矿体 | 角砾岩型矿体 |
3 | LYC-10 | 矿区14中段1#矿体 | 角砾岩型矿体 |
4 | LYC-11 | 矿区14中段1#矿体 | 角砾岩型矿体 |
5 | LYC-12 | 矿区14中段1#矿体 | 角砾岩型矿体 |
6 | LYC-13-2 | 矿区13中段1#矿体 | 角砾岩型矿体 |
7 | LYC-15-2 | 矿区外围,四里四村 | 花岗斑岩 |
8 | LYC-16-2 | 矿区外围,四里四村 | 花岗斑岩 |
9 | LYC-17-1 | 矿区外围,四里四村 | 花岗斑岩 |
10 | LYC-17-2 | 矿区外围,四里四村 | 花岗斑岩 |
11 | LYC-17-3 | 矿区外围,四里四村 | 花岗斑岩 |
12 | LYC-17-4 | 矿区外围,四里四村 | 花岗斑岩 |
13 | LYC-19-1 | 矿区外围,四里四村 | 花岗斑岩 |
14 | LYC-19-2 | 矿区外围,四里四村 | 花岗斑岩 |
15 | LYC-20 | 矿区外围,四里四村 | 花岗斑岩 |
16 | LYC-21-1 | 矿区16中段2#矿体 | 石英脉型矿体 |
17 | LYC-26-1 | 矿区 | 石英斑岩 |
18 | LYC-29 | 矿区14中段1#矿体 | 石英脉型矿体 |
19 | LYC-32 | 矿区14中段1#矿体 | 角砾岩型矿体 |
20 | LYC-33 | 矿区14中段2#矿体 | 石英脉型矿体 |
21 | LYC-34 | 矿区14中段2#矿体 | 石英脉型矿体 |
22 | LYC-36 | 矿区11中段2#矿体 | 石英脉型矿体 |
23 | LYC-37 | 矿区11中段2#矿体 | 石英脉型矿体 |
24 | LYC-38 | 矿区16中段2#矿体 | 石英脉型矿体 |
25 | LYC-39-1 | 矿区16中段1#矿体 | 角砾岩型矿体 |
26 | LYC-39-2 | 矿区16中段1#矿体 | 角砾岩型矿体 |
27 | LYC-41 | 矿区16中段1#矿体 | 角砾岩型矿体 |
28 | LYC-42 | 矿区16中段1#矿体 | 角砾岩型矿体 |
29 | LYC-45 | 矿区16中段1#矿体 | 角砾岩型矿体 |
30 | LYC-47 | 矿区16中段1#矿体 | 角砾岩型矿体 |
31 | LYC-50 | 矿区16中段1#矿体 | 角砾岩型矿体 |
32 | LYC-51 | 矿区16中段1#矿体 | 角砾岩型矿体 |
33 | LYC-55 | 矿区16中段1#矿体 | 角砾岩型矿体 |
34 | LYC-57 | 矿区13中段1#矿体 | 角砾岩型矿体 |
35 | LYC-58 | 矿区13中段1#矿体 | 角砾岩型矿体 |
36 | LYC-60 | 矿区15中段1#矿体 | 角砾岩型矿体 |
编号 | 样品号 | 测定矿物 | δ34S/‰ | 数据来源 | 编号 | 样品号 | 测定矿物 | δ34S/‰ | 数据来源 | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | LYC-5-2 | 黄铁矿 | 3.7 | 本文 | 19 | LYC-34 | 黄铁矿 | 1.6 | 本文 | |||||
2 | LYC-5-2 | 方铅矿 | -6.4 | 本文 | 20 | LYC-36 | 黄铁矿 | 2.8 | 本文 | |||||
3 | LYC-9 | 黄铁矿 | 3.8 | 本文 | 21 | LYC-37 | 黄铁矿 | 0.9 | 本文 | |||||
4 | LYC-10 | 黄铁矿 | 4.2 | 本文 | 22 | LYC-38 | 黄铁矿 | 3.6 | 本文 | |||||
5 | LYC-10 | 方铅矿 | -0.9 | 本文 | 23 | LYC-38 | 方铅矿 | -2.8 | 本文 | |||||
6 | LYC-11 | 黄铁矿 | 3.7 | 本文 | 24 | LYC-39-1 | 黄铁矿 | 3.1 | 本文 | |||||
7 | LYC-12 | 黄铁矿 | 4.3 | 本文 | 25 | LYC-41 | 黄铁矿 | 2.6 | 本文 | |||||
8 | LYC-12 | 方铅矿 | -2.2 | 本文 | 26 | LYC-42 | 黄铁矿 | 2.7 | 本文 | |||||
9 | LYC-13-2 | 黄铁矿 | 3.3 | 本文 | 27 | LYC-47 | 黄铁矿 | 2.4 | 本文 | |||||
10 | LYC-13-2 | 方铅矿 | -12.8 | 本文 | 28 | LYC-50 | 黄铁矿 | 2.2 | 本文 | |||||
11 | LYC-13-2 | 闪锌矿 | 1.7 | 本文 | 29 | LYC-51 | 黄铁矿 | 2.7 | 本文 | |||||
12 | LYC-21-1 | 黄铁矿 | 2.3 | 本文 | 30 | LYC-55 | 黄铁矿 | 3.2 | 本文 | |||||
13 | LYC-21-1 | 方铅矿 | -7.8 | 本文 | 31 | LYC-57 | 黄铁矿 | 3.6 | 本文 | |||||
14 | LYC-29 | 黄铁矿 | 3.8 | 本文 | 32 | LYC-57 | 方铅矿 | 1.4 | 本文 | |||||
15 | LYC-32 | 黄铁矿 | 3.8 | 本文 | 33 | LYC-57 | 闪锌矿 | 2.8 | 本文 | |||||
16 | LYC-32 | 方铅矿 | -2.1 | 本文 | 34 | LYC-57 | 黄铜矿 | 2.5 | 本文 | |||||
17 | LYC-32 | 闪锌矿 | 2.4 | 本文 | 35 | LYC-58 | 黄铁矿 | 2.7 | 本文 | |||||
18 | LYC-33 | 黄铁矿 | 2.3 | 本文 | 36 | LYC-60 | 黄铁矿 | 2.8 | 本文 |
表2 梨园金矿硫同位素测试结果
Table 2 Sulfur isotope data of ore minerals from the Liyuan gold deposit
编号 | 样品号 | 测定矿物 | δ34S/‰ | 数据来源 | 编号 | 样品号 | 测定矿物 | δ34S/‰ | 数据来源 | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | LYC-5-2 | 黄铁矿 | 3.7 | 本文 | 19 | LYC-34 | 黄铁矿 | 1.6 | 本文 | |||||
2 | LYC-5-2 | 方铅矿 | -6.4 | 本文 | 20 | LYC-36 | 黄铁矿 | 2.8 | 本文 | |||||
3 | LYC-9 | 黄铁矿 | 3.8 | 本文 | 21 | LYC-37 | 黄铁矿 | 0.9 | 本文 | |||||
4 | LYC-10 | 黄铁矿 | 4.2 | 本文 | 22 | LYC-38 | 黄铁矿 | 3.6 | 本文 | |||||
5 | LYC-10 | 方铅矿 | -0.9 | 本文 | 23 | LYC-38 | 方铅矿 | -2.8 | 本文 | |||||
6 | LYC-11 | 黄铁矿 | 3.7 | 本文 | 24 | LYC-39-1 | 黄铁矿 | 3.1 | 本文 | |||||
7 | LYC-12 | 黄铁矿 | 4.3 | 本文 | 25 | LYC-41 | 黄铁矿 | 2.6 | 本文 | |||||
8 | LYC-12 | 方铅矿 | -2.2 | 本文 | 26 | LYC-42 | 黄铁矿 | 2.7 | 本文 | |||||
9 | LYC-13-2 | 黄铁矿 | 3.3 | 本文 | 27 | LYC-47 | 黄铁矿 | 2.4 | 本文 | |||||
10 | LYC-13-2 | 方铅矿 | -12.8 | 本文 | 28 | LYC-50 | 黄铁矿 | 2.2 | 本文 | |||||
11 | LYC-13-2 | 闪锌矿 | 1.7 | 本文 | 29 | LYC-51 | 黄铁矿 | 2.7 | 本文 | |||||
12 | LYC-21-1 | 黄铁矿 | 2.3 | 本文 | 30 | LYC-55 | 黄铁矿 | 3.2 | 本文 | |||||
13 | LYC-21-1 | 方铅矿 | -7.8 | 本文 | 31 | LYC-57 | 黄铁矿 | 3.6 | 本文 | |||||
14 | LYC-29 | 黄铁矿 | 3.8 | 本文 | 32 | LYC-57 | 方铅矿 | 1.4 | 本文 | |||||
15 | LYC-32 | 黄铁矿 | 3.8 | 本文 | 33 | LYC-57 | 闪锌矿 | 2.8 | 本文 | |||||
16 | LYC-32 | 方铅矿 | -2.1 | 本文 | 34 | LYC-57 | 黄铜矿 | 2.5 | 本文 | |||||
17 | LYC-32 | 闪锌矿 | 2.4 | 本文 | 35 | LYC-58 | 黄铁矿 | 2.7 | 本文 | |||||
18 | LYC-33 | 黄铁矿 | 2.3 | 本文 | 36 | LYC-60 | 黄铁矿 | 2.8 | 本文 |
编号 | 样品号 | 岩石类型 | 测试矿物 | 206Pb/204Pb | 206Pb error | 207Pb/204Pb | 207Pb error | 208Pb/204Pb | 208Pb error | 数据来源 |
---|---|---|---|---|---|---|---|---|---|---|
1 | LYC-09 | 矿石 | 黄铁矿 | 16.763 1 | 0.000 6 | 15.244 7 | 0.000 5 | 43.049 4 | 0.001 6 | 本文 |
2 | LYC-10 | 矿石 | 黄铁矿 | 16.811 6 | 0.000 5 | 15.265 8 | 0.000 5 | 43.105 5 | 0.001 5 | 本文 |
3 | LYC-12 | 矿石 | 黄铁矿 | 16.752 5 | 0.000 5 | 15.246 2 | 0.000 5 | 42.637 3 | 0.001 6 | 本文 |
4 | LYC-12 | 矿石 | 方铅矿 | 16.740 7 | 0.000 5 | 15.241 7 | 0.000 5 | 42.6767 | 0.001 5 | 本文 |
5 | LYC-13-2 | 矿石 | 黄铁矿 | 16.758 5 | 0.000 4 | 15.243 4 | 0.000 4 | 43.892 1 | 0.001 2 | 本文 |
6 | LYC-13-2 | 矿石 | 方铅矿 | 16.753 4 | 0.000 5 | 15.242 1 | 0.000 4 | 43.938 7 | 0.001 5 | 本文 |
7 | LYC-17-1 | 花岗斑岩 | 钾长石 | 16.883 5 | 0.000 5 | 15.287 3 | 0.000 5 | 39.021 0 | 0.001 3 | 本文 |
8 | LYC-17-3 | 花岗斑岩 | 钾长石 | 16.739 2 | 0.000 5 | 15.267 8 | 0.000 5 | 39.113 8 | 0.001 3 | 本文 |
9 | LYC-19-2 | 花岗斑岩 | 钾长石 | 16.444 1 | 0.000 4 | 15.240 8 | 0.000 4 | 37.219 2 | 0.001 3 | 本文 |
10 | LYC-21-1 | 矿石 | 黄铁矿 | 16.862 5 | 0.000 4 | 15.255 9 | 0.000 3 | 44.181 3 | 0.001 2 | 本文 |
11 | LYC-29 | 矿石 | 黄铁矿 | 16.744 6 | 0.000 4 | 15.242 3 | 0.000 4 | 42.682 3 | 0.001 1 | 本文 |
12 | LYC-32 | 矿石 | 黄铁矿 | 16.815 5 | 0.000 5 | 15.256 9 | 0.000 5 | 43.395 8 | 0.001 6 | 本文 |
13 | LYC-32 | 矿石 | 方铅矿 | 16.765 4 | 0.000 4 | 15.246 2 | 0.000 4 | 43.762 7 | 0.001 2 | 本文 |
14 | LYC-33 | 矿石 | 黄铁矿 | 16.889 7 | 0.000 4 | 15.263 9 | 0.000 4 | 44.015 0 | 0.001 4 | 本文 |
15 | LYC-36 | 矿石 | 黄铁矿 | 16.828 6 | 0.000 4 | 15.252 0 | 0.000 4 | 43.576 4 | 0.001 3 | 本文 |
16 | LYC-37 | 矿石 | 黄铁矿 | 16.852 3 | 0.000 5 | 15.266 6 | 0.000 4 | 45.334 0 | 0.001 4 | 本文 |
17 | LYC-38 | 矿石 | 黄铁矿 | 16.697 2 | 0.000 4 | 15.243 3 | 0.000 5 | 42.258 2 | 0.001 3 | 本文 |
18 | LYC-39-1 | 矿石 | 黄铁矿 | 16.770 7 | 0.000 4 | 15.247 3 | 0.000 3 | 43.754 1 | 0.001 0 | 本文 |
19 | LYC-39-2 | 石英斑岩角砾 | 钾长石 | 15.763 4 | 0.000 4 | 15.124 2 | 0.000 4 | 37.529 1 | 0.001 2 | 本文 |
20 | LYC-41 | 矿石 | 黄铁矿 | 16.825 0 | 0.000 5 | 15.260 2 | 0.000 5 | 43.102 7 | 0.001 6 | 本文 |
21 | LYC-42 | 矿石 | 黄铁矿 | 16.743 7 | 0.000 3 | 15.249 4 | 0.000 3 | 44.026 4 | 0.000 9 | 本文 |
22 | LYC-42 | 钾化花岗岩 | 钾长石 | 15.290 3 | 0.000 4 | 15.042 5 | 0.000 4 | 36.048 8 | 0.001 2 | 本文 |
23 | LYC-45 | 钾化花岗岩角砾 | 钾长石 | 15.341 8 | 0.000 4 | 15.044 4 | 0.000 4 | 36.531 2 | 0.001 3 | 本文 |
24 | LYC-47 | 矿石 | 黄铁矿 | 16.794 2 | 0.000 4 | 15.251 1 | 0.000 5 | 43.910 9 | 0.001 2 | 本文 |
25 | LYC-50 | 矿石 | 黄铁矿 | 16.801 9 | 0.000 4 | 15.249 0 | 0.000 4 | 44.507 0 | 0.001 3 | 本文 |
26 | LYC-51 | 钾化花岗岩角砾 | 钾长石 | 15.251 3 | 0.000 3 | 15.039 0 | 0.000 4 | 35.864 2 | 0.001 1 | 本文 |
27 | LYC-55 | 矿石 | 黄铁矿 | 16.825 0 | 0.000 5 | 15.264 3 | 0.000 5 | 43.330 7 | 0.001 5 | 本文 |
28 | LYC-57 | 矿石 | 方铅矿 | 16.729 3 | 0.000 4 | 15.238 7 | 0.000 4 | 42.186 3 | 0.001 3 | 本文 |
29 | LYC-57 | 矿石 | 黄铁矿 | 16.732 6 | 0.000 3 | 15.240 8 | 0.000 3 | 42.197 5 | 0.001 0 | 本文 |
30 | LYC-60 | 矿石 | 黄铁矿 | 16.768 6 | 0.000 4 | 15.248 0 | 0.000 4 | 43.299 6 | 0.001 2 | 本文 |
31 | 15LY-23 | 石英斑岩 | 钾长石 | 17.053 0 | 15.302 0 | 42.279 0 | Ma等 [ | |||
32 | 15LY-24 | 石英斑岩 | 钾长石 | 17.130 0 | 15.307 0 | 43.523 0 | Ma等 [ | |||
33 | 15LY-27 | 石英斑岩 | 钾长石 | 16.799 0 | 15.271 0 | 41.374 0 | Ma等 [ |
表3 梨园金矿铅同位素测试结果
Table 3 Lead isotopic data of the Liyuan gold deposit
编号 | 样品号 | 岩石类型 | 测试矿物 | 206Pb/204Pb | 206Pb error | 207Pb/204Pb | 207Pb error | 208Pb/204Pb | 208Pb error | 数据来源 |
---|---|---|---|---|---|---|---|---|---|---|
1 | LYC-09 | 矿石 | 黄铁矿 | 16.763 1 | 0.000 6 | 15.244 7 | 0.000 5 | 43.049 4 | 0.001 6 | 本文 |
2 | LYC-10 | 矿石 | 黄铁矿 | 16.811 6 | 0.000 5 | 15.265 8 | 0.000 5 | 43.105 5 | 0.001 5 | 本文 |
3 | LYC-12 | 矿石 | 黄铁矿 | 16.752 5 | 0.000 5 | 15.246 2 | 0.000 5 | 42.637 3 | 0.001 6 | 本文 |
4 | LYC-12 | 矿石 | 方铅矿 | 16.740 7 | 0.000 5 | 15.241 7 | 0.000 5 | 42.6767 | 0.001 5 | 本文 |
5 | LYC-13-2 | 矿石 | 黄铁矿 | 16.758 5 | 0.000 4 | 15.243 4 | 0.000 4 | 43.892 1 | 0.001 2 | 本文 |
6 | LYC-13-2 | 矿石 | 方铅矿 | 16.753 4 | 0.000 5 | 15.242 1 | 0.000 4 | 43.938 7 | 0.001 5 | 本文 |
7 | LYC-17-1 | 花岗斑岩 | 钾长石 | 16.883 5 | 0.000 5 | 15.287 3 | 0.000 5 | 39.021 0 | 0.001 3 | 本文 |
8 | LYC-17-3 | 花岗斑岩 | 钾长石 | 16.739 2 | 0.000 5 | 15.267 8 | 0.000 5 | 39.113 8 | 0.001 3 | 本文 |
9 | LYC-19-2 | 花岗斑岩 | 钾长石 | 16.444 1 | 0.000 4 | 15.240 8 | 0.000 4 | 37.219 2 | 0.001 3 | 本文 |
10 | LYC-21-1 | 矿石 | 黄铁矿 | 16.862 5 | 0.000 4 | 15.255 9 | 0.000 3 | 44.181 3 | 0.001 2 | 本文 |
11 | LYC-29 | 矿石 | 黄铁矿 | 16.744 6 | 0.000 4 | 15.242 3 | 0.000 4 | 42.682 3 | 0.001 1 | 本文 |
12 | LYC-32 | 矿石 | 黄铁矿 | 16.815 5 | 0.000 5 | 15.256 9 | 0.000 5 | 43.395 8 | 0.001 6 | 本文 |
13 | LYC-32 | 矿石 | 方铅矿 | 16.765 4 | 0.000 4 | 15.246 2 | 0.000 4 | 43.762 7 | 0.001 2 | 本文 |
14 | LYC-33 | 矿石 | 黄铁矿 | 16.889 7 | 0.000 4 | 15.263 9 | 0.000 4 | 44.015 0 | 0.001 4 | 本文 |
15 | LYC-36 | 矿石 | 黄铁矿 | 16.828 6 | 0.000 4 | 15.252 0 | 0.000 4 | 43.576 4 | 0.001 3 | 本文 |
16 | LYC-37 | 矿石 | 黄铁矿 | 16.852 3 | 0.000 5 | 15.266 6 | 0.000 4 | 45.334 0 | 0.001 4 | 本文 |
17 | LYC-38 | 矿石 | 黄铁矿 | 16.697 2 | 0.000 4 | 15.243 3 | 0.000 5 | 42.258 2 | 0.001 3 | 本文 |
18 | LYC-39-1 | 矿石 | 黄铁矿 | 16.770 7 | 0.000 4 | 15.247 3 | 0.000 3 | 43.754 1 | 0.001 0 | 本文 |
19 | LYC-39-2 | 石英斑岩角砾 | 钾长石 | 15.763 4 | 0.000 4 | 15.124 2 | 0.000 4 | 37.529 1 | 0.001 2 | 本文 |
20 | LYC-41 | 矿石 | 黄铁矿 | 16.825 0 | 0.000 5 | 15.260 2 | 0.000 5 | 43.102 7 | 0.001 6 | 本文 |
21 | LYC-42 | 矿石 | 黄铁矿 | 16.743 7 | 0.000 3 | 15.249 4 | 0.000 3 | 44.026 4 | 0.000 9 | 本文 |
22 | LYC-42 | 钾化花岗岩 | 钾长石 | 15.290 3 | 0.000 4 | 15.042 5 | 0.000 4 | 36.048 8 | 0.001 2 | 本文 |
23 | LYC-45 | 钾化花岗岩角砾 | 钾长石 | 15.341 8 | 0.000 4 | 15.044 4 | 0.000 4 | 36.531 2 | 0.001 3 | 本文 |
24 | LYC-47 | 矿石 | 黄铁矿 | 16.794 2 | 0.000 4 | 15.251 1 | 0.000 5 | 43.910 9 | 0.001 2 | 本文 |
25 | LYC-50 | 矿石 | 黄铁矿 | 16.801 9 | 0.000 4 | 15.249 0 | 0.000 4 | 44.507 0 | 0.001 3 | 本文 |
26 | LYC-51 | 钾化花岗岩角砾 | 钾长石 | 15.251 3 | 0.000 3 | 15.039 0 | 0.000 4 | 35.864 2 | 0.001 1 | 本文 |
27 | LYC-55 | 矿石 | 黄铁矿 | 16.825 0 | 0.000 5 | 15.264 3 | 0.000 5 | 43.330 7 | 0.001 5 | 本文 |
28 | LYC-57 | 矿石 | 方铅矿 | 16.729 3 | 0.000 4 | 15.238 7 | 0.000 4 | 42.186 3 | 0.001 3 | 本文 |
29 | LYC-57 | 矿石 | 黄铁矿 | 16.732 6 | 0.000 3 | 15.240 8 | 0.000 3 | 42.197 5 | 0.001 0 | 本文 |
30 | LYC-60 | 矿石 | 黄铁矿 | 16.768 6 | 0.000 4 | 15.248 0 | 0.000 4 | 43.299 6 | 0.001 2 | 本文 |
31 | 15LY-23 | 石英斑岩 | 钾长石 | 17.053 0 | 15.302 0 | 42.279 0 | Ma等 [ | |||
32 | 15LY-24 | 石英斑岩 | 钾长石 | 17.130 0 | 15.307 0 | 43.523 0 | Ma等 [ | |||
33 | 15LY-27 | 石英斑岩 | 钾长石 | 16.799 0 | 15.271 0 | 41.374 0 | Ma等 [ |
图7 梨园金矿床金属硫化物207Pb/204Pb-206Pb/204Pb图解(a)和208Pb/204Pb-206Pb/204Pb图解(b)(底图据[55]修编)
Fig.7 207Pb/204Pb-206Pb/204Pb diagram (a) and 208Pb/204Pb -206Pb/204Pb diagram (b) showing lead isotopic composition of the Liyuan gold deposit. Modified from [55].
样品号 | 测试矿物 | 3He含量/10-12 | 4He含量/10-6 | (3He/4He)/10-6 | R/Ra | 40Ar/36Ar | 38Ar/36Ar | 幔源He 占比/% | 放射成因 40Ar*占比/% |
---|---|---|---|---|---|---|---|---|---|
LYC-05-2 | 黄铁矿 | 2.44 | 1.68 | 1.45 | 1.04 | 5 488.80 | 0.22 | 13.05 | 94.62 |
LYC-12 | 黄铁矿 | 1.15 | 1.82 | 0.63 | 0.45 | 2 091.73 | 0.21 | 5.57 | 85.87 |
LYC-13-2 | 黄铁矿 | 1.01 | 1.88 | 0.54 | 0.38 | 2 275.73 | 0.21 | 4.71 | 87.02 |
LYC-34 | 黄铁矿 | 1.04 | 1.02 | 1.02 | 0.73 | 3 312.11 | 0.22 | 9.10 | 91.08 |
LYC-41 | 黄铁矿 | 0.89 | 2.31 | 0.38 | 0.27 | 1 395.24 | 0.21 | 3.31 | 78.82 |
LYC-50 | 黄铁矿 | 1.00 | 1.28 | 0.78 | 0.56 | 1 621.70 | 0.21 | 6.93 | 81.78 |
LYC-57 | 黄铁矿 | 0.71 | 1.15 | 0.61 | 0.44 | 1 289.36 | 0.20 | 5.41 | 77.08 |
LYC-60 | 黄铁矿 | 1.17 | 2.14 | 0.55 | 0.39 | 1 194.61 | 0.21 | 4.80 | 75.26 |
表4 梨园金矿黄铁矿流体包裹体氦、氦同位素组成
Table 4 Helium and argon isotopic compositions of fluid inclusions in pyrite from the Liyuan gold deposit
样品号 | 测试矿物 | 3He含量/10-12 | 4He含量/10-6 | (3He/4He)/10-6 | R/Ra | 40Ar/36Ar | 38Ar/36Ar | 幔源He 占比/% | 放射成因 40Ar*占比/% |
---|---|---|---|---|---|---|---|---|---|
LYC-05-2 | 黄铁矿 | 2.44 | 1.68 | 1.45 | 1.04 | 5 488.80 | 0.22 | 13.05 | 94.62 |
LYC-12 | 黄铁矿 | 1.15 | 1.82 | 0.63 | 0.45 | 2 091.73 | 0.21 | 5.57 | 85.87 |
LYC-13-2 | 黄铁矿 | 1.01 | 1.88 | 0.54 | 0.38 | 2 275.73 | 0.21 | 4.71 | 87.02 |
LYC-34 | 黄铁矿 | 1.04 | 1.02 | 1.02 | 0.73 | 3 312.11 | 0.22 | 9.10 | 91.08 |
LYC-41 | 黄铁矿 | 0.89 | 2.31 | 0.38 | 0.27 | 1 395.24 | 0.21 | 3.31 | 78.82 |
LYC-50 | 黄铁矿 | 1.00 | 1.28 | 0.78 | 0.56 | 1 621.70 | 0.21 | 6.93 | 81.78 |
LYC-57 | 黄铁矿 | 0.71 | 1.15 | 0.61 | 0.44 | 1 289.36 | 0.20 | 5.41 | 77.08 |
LYC-60 | 黄铁矿 | 1.17 | 2.14 | 0.55 | 0.39 | 1 194.61 | 0.21 | 4.80 | 75.26 |
图8 梨园金矿床成矿流体40Ar/36Ar-R/Ra(a)和4He-3He图解(b)(据文献[60,61])
Fig.8 40Ar/36Ar-R/Ra diagram (a) and 4He-3He diagram (b) of the Liyuan gold deposit. Adapted from [60-61].
样品号 | 测试矿物/岩石 | wB/10-6 | |||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
La | Ce | Pr | Nd | Sm | Eu | Gd | Tb | Dy | Ho | Er | |||||||||||||||||||||||||||
LYC-5-2 | 黄铁矿 | 0.59 | 1.19 | 0.13 | 0.44 | 0.09 | 0.01 | 0.05 | 0.00 | 0.02 | 0.00 | 0.01 | |||||||||||||||||||||||||
LYC-36 | 黄铁矿 | 0.73 | 1.39 | 0.15 | 0.52 | 0.11 | 0.01 | 0.07 | 0.01 | 0.05 | 0.01 | 0.02 | |||||||||||||||||||||||||
LYC-37 | 黄铁矿 | 30.17 | 57.07 | 6.00 | 19.66 | 4.09 | 0.54 | 2.09 | 0.23 | 1.07 | 0.21 | 0.57 | |||||||||||||||||||||||||
LYC-13-2 | 黄铁矿 | 1.77 | 3.69 | 0.41 | 1.41 | 0.25 | 0.02 | 0.17 | 0.02 | 0.07 | 0.01 | 0.03 | |||||||||||||||||||||||||
LYC-29 | 黄铁矿 | 3.54 | 7.55 | 0.93 | 3.57 | 0.82 | 0.16 | 0.65 | 0.09 | 0.52 | 0.12 | 0.34 | |||||||||||||||||||||||||
LYC-41 | 黄铁矿 | 31.46 | 54.42 | 5.49 | 17.63 | 3.31 | 0.57 | 1.97 | 0.21 | 0.89 | 0.16 | 0.37 | |||||||||||||||||||||||||
LYC-58 | 黄铁矿 | 2.15 | 4.70 | 0.59 | 2.31 | 0.59 | 0.06 | 0.66 | 0.11 | 0.73 | 0.15 | 0.43 | |||||||||||||||||||||||||
LYC-60 | 黄铁矿 | 5.58 | 11.64 | 1.41 | 5.20 | 1.20 | 0.25 | 0.97 | 0.14 | 0.80 | 0.16 | 0.44 | |||||||||||||||||||||||||
LYC-26-1 | 石英斑岩 | 10.80 | 23.29 | 2.82 | 9.76 | 2.20 | 0.48 | 1.83 | 0.23 | 1.01 | 0.16 | 0.35 | |||||||||||||||||||||||||
LYC-15-2 | 花岗斑岩 | 25.04 | 51.84 | 6.12 | 19.74 | 4.05 | 1.02 | 2.79 | 0.35 | 1.65 | 0.31 | 0.81 | |||||||||||||||||||||||||
LYC-16-2 | 花岗斑岩 | 23.02 | 49.43 | 5.85 | 19.84 | 4.18 | 0.97 | 3.08 | 0.40 | 2.00 | 0.37 | 0.97 | |||||||||||||||||||||||||
LYC-17-2 | 花岗斑岩 | 24.71 | 50.82 | 5.50 | 19.28 | 3.93 | 1.05 | 2.77 | 0.35 | 1.67 | 0.31 | 0.82 | |||||||||||||||||||||||||
LYC-17-4 | 花岗斑岩 | 21.51 | 45.00 | 5.18 | 17.00 | 3.63 | 0.82 | 2.68 | 0.35 | 1.74 | 0.33 | 0.88 | |||||||||||||||||||||||||
LYC-19-1 | 花岗斑岩 | 19.39 | 40.87 | 5.00 | 17.00 | 3.68 | 0.99 | 2.66 | 0.35 | 1.77 | 0.33 | 0.87 | |||||||||||||||||||||||||
LYC-20 | 花岗斑岩 | 17.56 | 35.78 | 3.94 | 12.83 | 2.81 | 0.59 | 2.22 | 0.30 | 1.49 | 0.29 | 0.77 | |||||||||||||||||||||||||
样品号 | 测试矿物/岩石 | wB/10-6 | ∑LREE/∑HREE | ||||||||||||||||||||||||||||||||||
Tm | Yb | Lu | ∑REE | ∑LREE | ∑HREE | Rb | Ba | Th | U | ||||||||||||||||||||||||||||
LYC-5-2 | 黄铁矿 | 0.00 | 0.00 | 0.00 | 2.53 | 2.45 | 0.08 | 0.88 | 2.69 | 0.04 | 0.09 | 30.63 | |||||||||||||||||||||||||
LYC-36 | 黄铁矿 | 0.00 | 0.02 | 0.00 | 3.09 | 2.91 | 0.18 | 0.60 | 0.01 | 0.09 | 0.07 | 16.17 | |||||||||||||||||||||||||
LYC-37 | 黄铁矿 | 0.09 | 0.54 | 0.08 | 122.41 | 117.53 | 4.88 | 5.92 | 30.78 | 2.91 | 0.95 | 24.08 | |||||||||||||||||||||||||
LYC-13-2 | 黄铁矿 | 0.00 | 0.02 | 0.00 | 7.87 | 7.55 | 0.32 | 1.94 | 1.40 | 0.23 | 0.04 | 23.59 | |||||||||||||||||||||||||
LYC-29 | 黄铁矿 | 0.05 | 0.35 | 0.06 | 18.75 | 16.57 | 2.18 | 5.43 | 16.21 | 0.47 | 0.14 | 7.60 | |||||||||||||||||||||||||
LYC-41 | 黄铁矿 | 0.05 | 0.31 | 0.05 | 116.89 | 122.88 | 4.01 | 6.50 | 52.71 | 4.28 | 2.24 | 28.15 | |||||||||||||||||||||||||
LYC-58 | 黄铁矿 | 0.06 | 0.36 | 0.05 | 12.95 | 10.41 | 2.55 | 6.67 | 25.02 | 0.70 | 0.07 | 4.08 | |||||||||||||||||||||||||
LYC-60 | 黄铁矿 | 0.07 | 0.41 | 0.06 | 28.33 | 25.28 | 3.05 | 13.67 | 69.09 | 0.63 | 0.26 | 8.29 | |||||||||||||||||||||||||
LYC-26-1 | 石英斑岩 | 0.05 | 0.29 | 0.04 | 53.31 | 49.35 | 3.96 | 188.35 | 232.45 | 3.33 | 1.27 | 12.46 | |||||||||||||||||||||||||
LYC-15-2 | 花岗斑岩 | 0.12 | 0.76 | 0.12 | 114.72 | 107.81 | 6.91 | 97.05 | 894.58 | 4.02 | 1.04 | 15.60 | |||||||||||||||||||||||||
LYC-16-2 | 花岗斑岩 | 0.14 | 0.87 | 0.13 | 111.25 | 103.29 | 7.96 | 96.33 | 518.60 | 10.15 | 1.27 | 12.98 | |||||||||||||||||||||||||
LYC-17-2 | 花岗斑岩 | 0.12 | 0.77 | 0.12 | 112.22 | 105.29 | 6.93 | 91.80 | 1 158.75 | 4.11 | 0.95 | 15.19 | |||||||||||||||||||||||||
LYC-17-4 | 花岗斑岩 | 0.13 | 0.87 | 0.14 | 100.26 | 93.14 | 7.12 | 94.22 | 634.47 | 5.42 | 1.11 | 13.08 | |||||||||||||||||||||||||
LYC-19-1 | 花岗斑岩 | 0.13 | 0.83 | 0.13 | 94.00 | 86.93 | 7.07 | 82.76 | 1 186.63 | 4.31 | 1.09 | 12.30 | |||||||||||||||||||||||||
LYC-20 | 花岗斑岩 | 0.12 | 0.77 | 0.12 | 79.59 | 73.51 | 6.08 | 72.84 | 333.08 | 5.15 | 1.20 | 12.09 | |||||||||||||||||||||||||
样品号 | 测试矿物 /岩石 | wB/10-6 | |||||||||||||||||||||||||||||||||||
Ta | Nb | Sr | Zr | Hf | Y | Zn | Cd | Pb | Sb | Cu | As | Co | Ni | ||||||||||||||||||||||||
LYC-5-2 | 黄铁矿 | 0.00 | 0.49 | 4.17 | 1.72 | 0.00 | 0.14 | 2 444.12 | 44.51 | 20 561.22 | 12.89 | 461.27 | 1 216.50 | 143.17 | 493.07 | ||||||||||||||||||||||
LYC-36 | 黄铁矿 | 0.00 | 0.02 | 1.90 | 3.16 | 0.04 | 0.26 | 1 611.86 | 10.74 | 7 669.94 | 8.34 | 796.13 | 935.10 | 93.69 | 382.79 | ||||||||||||||||||||||
LYC-37 | 黄铁矿 | 0.04 | 8.37 | 39.65 | 41.48 | 1.55 | 5.21 | 31.81 | 0.33 | 660.41 | 4.20 | 87.89 | 161.60 | 268.05 | 564.96 | ||||||||||||||||||||||
LYC-13-2 | 黄铁矿 | 0.00 | 0.26 | 4.38 | 1.82 | 0.00 | 0.29 | 1 709.75 | 29.06 | 16 181.61 | 6.12 | 310.95 | 1 810.50 | 83.78 | 147.11 | ||||||||||||||||||||||
LYC-29 | 黄铁矿 | 0.00 | 2.03 | 3.66 | 40.25 | 1.25 | 2.98 | 393.66 | 7.31 | 1 518.16 | 4.63 | 250.57 | 1 332.50 | 111.91 | 58.03 | ||||||||||||||||||||||
LYC-41 | 黄铁矿 | 0.91 | 29.39 | 39.10 | 150.52 | 4.47 | 4.03 | 44.25 | 0.47 | 495.71 | 1.71 | 70.65 | 73.28 | 425.84 | 856.33 | ||||||||||||||||||||||
LYC-58 | 黄铁矿 | 0.00 | 1.43 | 7.97 | 4.52 | 0.22 | 3.83 | 36.55 | 0.45 | 403.74 | 0.74 | 588.11 | 49.59 | 441.87 | 1 057.84 | ||||||||||||||||||||||
LYC-60 | 黄铁矿 | 0.00 | 2.16 | 14.12 | 44.22 | 1.39 | 4.12 | 65.60 | 1.10 | 511.33 | 1.67 | 88.02 | 156.40 | 481.94 | 140.53 | ||||||||||||||||||||||
LYC-26-1 | 石英斑岩 | 0.81 | 13.66 | 194.91 | 67.09 | 3.13 | 5.25 | ||||||||||||||||||||||||||||||
LYC-15-2 | 花岗斑岩 | 1.01 | 14.39 | 243.02 | 54.18 | 2.09 | 9.58 | ||||||||||||||||||||||||||||||
LYC-16-2 | 花岗斑岩 | 0.82 | 12.19 | 254.16 | 57.93 | 2.12 | 11.34 | ||||||||||||||||||||||||||||||
LYC-17-2 | 花岗斑岩 | 0.70 | 12.48 | 284.73 | 51.19 | 2.04 | 9.67 | ||||||||||||||||||||||||||||||
LYC-17-4 | 花岗斑岩 | 0.99 | 15.60 | 196.23 | 47.41 | 2.15 | 10.46 | ||||||||||||||||||||||||||||||
LYC-19-1 | 花岗斑岩 | 0.79 | 13.30 | 300.07 | 57.07 | 2.26 | 10.20 | ||||||||||||||||||||||||||||||
LYC-20 | 花岗斑岩 | 0.93 | 15.79 | 146.04 | 48.43 | 2.17 | 9.25 |
表5 梨园金矿代表性样品的微量元素分析结果
Table 5 Trace element analyses of the Liyuan gold deposit
样品号 | 测试矿物/岩石 | wB/10-6 | |||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
La | Ce | Pr | Nd | Sm | Eu | Gd | Tb | Dy | Ho | Er | |||||||||||||||||||||||||||
LYC-5-2 | 黄铁矿 | 0.59 | 1.19 | 0.13 | 0.44 | 0.09 | 0.01 | 0.05 | 0.00 | 0.02 | 0.00 | 0.01 | |||||||||||||||||||||||||
LYC-36 | 黄铁矿 | 0.73 | 1.39 | 0.15 | 0.52 | 0.11 | 0.01 | 0.07 | 0.01 | 0.05 | 0.01 | 0.02 | |||||||||||||||||||||||||
LYC-37 | 黄铁矿 | 30.17 | 57.07 | 6.00 | 19.66 | 4.09 | 0.54 | 2.09 | 0.23 | 1.07 | 0.21 | 0.57 | |||||||||||||||||||||||||
LYC-13-2 | 黄铁矿 | 1.77 | 3.69 | 0.41 | 1.41 | 0.25 | 0.02 | 0.17 | 0.02 | 0.07 | 0.01 | 0.03 | |||||||||||||||||||||||||
LYC-29 | 黄铁矿 | 3.54 | 7.55 | 0.93 | 3.57 | 0.82 | 0.16 | 0.65 | 0.09 | 0.52 | 0.12 | 0.34 | |||||||||||||||||||||||||
LYC-41 | 黄铁矿 | 31.46 | 54.42 | 5.49 | 17.63 | 3.31 | 0.57 | 1.97 | 0.21 | 0.89 | 0.16 | 0.37 | |||||||||||||||||||||||||
LYC-58 | 黄铁矿 | 2.15 | 4.70 | 0.59 | 2.31 | 0.59 | 0.06 | 0.66 | 0.11 | 0.73 | 0.15 | 0.43 | |||||||||||||||||||||||||
LYC-60 | 黄铁矿 | 5.58 | 11.64 | 1.41 | 5.20 | 1.20 | 0.25 | 0.97 | 0.14 | 0.80 | 0.16 | 0.44 | |||||||||||||||||||||||||
LYC-26-1 | 石英斑岩 | 10.80 | 23.29 | 2.82 | 9.76 | 2.20 | 0.48 | 1.83 | 0.23 | 1.01 | 0.16 | 0.35 | |||||||||||||||||||||||||
LYC-15-2 | 花岗斑岩 | 25.04 | 51.84 | 6.12 | 19.74 | 4.05 | 1.02 | 2.79 | 0.35 | 1.65 | 0.31 | 0.81 | |||||||||||||||||||||||||
LYC-16-2 | 花岗斑岩 | 23.02 | 49.43 | 5.85 | 19.84 | 4.18 | 0.97 | 3.08 | 0.40 | 2.00 | 0.37 | 0.97 | |||||||||||||||||||||||||
LYC-17-2 | 花岗斑岩 | 24.71 | 50.82 | 5.50 | 19.28 | 3.93 | 1.05 | 2.77 | 0.35 | 1.67 | 0.31 | 0.82 | |||||||||||||||||||||||||
LYC-17-4 | 花岗斑岩 | 21.51 | 45.00 | 5.18 | 17.00 | 3.63 | 0.82 | 2.68 | 0.35 | 1.74 | 0.33 | 0.88 | |||||||||||||||||||||||||
LYC-19-1 | 花岗斑岩 | 19.39 | 40.87 | 5.00 | 17.00 | 3.68 | 0.99 | 2.66 | 0.35 | 1.77 | 0.33 | 0.87 | |||||||||||||||||||||||||
LYC-20 | 花岗斑岩 | 17.56 | 35.78 | 3.94 | 12.83 | 2.81 | 0.59 | 2.22 | 0.30 | 1.49 | 0.29 | 0.77 | |||||||||||||||||||||||||
样品号 | 测试矿物/岩石 | wB/10-6 | ∑LREE/∑HREE | ||||||||||||||||||||||||||||||||||
Tm | Yb | Lu | ∑REE | ∑LREE | ∑HREE | Rb | Ba | Th | U | ||||||||||||||||||||||||||||
LYC-5-2 | 黄铁矿 | 0.00 | 0.00 | 0.00 | 2.53 | 2.45 | 0.08 | 0.88 | 2.69 | 0.04 | 0.09 | 30.63 | |||||||||||||||||||||||||
LYC-36 | 黄铁矿 | 0.00 | 0.02 | 0.00 | 3.09 | 2.91 | 0.18 | 0.60 | 0.01 | 0.09 | 0.07 | 16.17 | |||||||||||||||||||||||||
LYC-37 | 黄铁矿 | 0.09 | 0.54 | 0.08 | 122.41 | 117.53 | 4.88 | 5.92 | 30.78 | 2.91 | 0.95 | 24.08 | |||||||||||||||||||||||||
LYC-13-2 | 黄铁矿 | 0.00 | 0.02 | 0.00 | 7.87 | 7.55 | 0.32 | 1.94 | 1.40 | 0.23 | 0.04 | 23.59 | |||||||||||||||||||||||||
LYC-29 | 黄铁矿 | 0.05 | 0.35 | 0.06 | 18.75 | 16.57 | 2.18 | 5.43 | 16.21 | 0.47 | 0.14 | 7.60 | |||||||||||||||||||||||||
LYC-41 | 黄铁矿 | 0.05 | 0.31 | 0.05 | 116.89 | 122.88 | 4.01 | 6.50 | 52.71 | 4.28 | 2.24 | 28.15 | |||||||||||||||||||||||||
LYC-58 | 黄铁矿 | 0.06 | 0.36 | 0.05 | 12.95 | 10.41 | 2.55 | 6.67 | 25.02 | 0.70 | 0.07 | 4.08 | |||||||||||||||||||||||||
LYC-60 | 黄铁矿 | 0.07 | 0.41 | 0.06 | 28.33 | 25.28 | 3.05 | 13.67 | 69.09 | 0.63 | 0.26 | 8.29 | |||||||||||||||||||||||||
LYC-26-1 | 石英斑岩 | 0.05 | 0.29 | 0.04 | 53.31 | 49.35 | 3.96 | 188.35 | 232.45 | 3.33 | 1.27 | 12.46 | |||||||||||||||||||||||||
LYC-15-2 | 花岗斑岩 | 0.12 | 0.76 | 0.12 | 114.72 | 107.81 | 6.91 | 97.05 | 894.58 | 4.02 | 1.04 | 15.60 | |||||||||||||||||||||||||
LYC-16-2 | 花岗斑岩 | 0.14 | 0.87 | 0.13 | 111.25 | 103.29 | 7.96 | 96.33 | 518.60 | 10.15 | 1.27 | 12.98 | |||||||||||||||||||||||||
LYC-17-2 | 花岗斑岩 | 0.12 | 0.77 | 0.12 | 112.22 | 105.29 | 6.93 | 91.80 | 1 158.75 | 4.11 | 0.95 | 15.19 | |||||||||||||||||||||||||
LYC-17-4 | 花岗斑岩 | 0.13 | 0.87 | 0.14 | 100.26 | 93.14 | 7.12 | 94.22 | 634.47 | 5.42 | 1.11 | 13.08 | |||||||||||||||||||||||||
LYC-19-1 | 花岗斑岩 | 0.13 | 0.83 | 0.13 | 94.00 | 86.93 | 7.07 | 82.76 | 1 186.63 | 4.31 | 1.09 | 12.30 | |||||||||||||||||||||||||
LYC-20 | 花岗斑岩 | 0.12 | 0.77 | 0.12 | 79.59 | 73.51 | 6.08 | 72.84 | 333.08 | 5.15 | 1.20 | 12.09 | |||||||||||||||||||||||||
样品号 | 测试矿物 /岩石 | wB/10-6 | |||||||||||||||||||||||||||||||||||
Ta | Nb | Sr | Zr | Hf | Y | Zn | Cd | Pb | Sb | Cu | As | Co | Ni | ||||||||||||||||||||||||
LYC-5-2 | 黄铁矿 | 0.00 | 0.49 | 4.17 | 1.72 | 0.00 | 0.14 | 2 444.12 | 44.51 | 20 561.22 | 12.89 | 461.27 | 1 216.50 | 143.17 | 493.07 | ||||||||||||||||||||||
LYC-36 | 黄铁矿 | 0.00 | 0.02 | 1.90 | 3.16 | 0.04 | 0.26 | 1 611.86 | 10.74 | 7 669.94 | 8.34 | 796.13 | 935.10 | 93.69 | 382.79 | ||||||||||||||||||||||
LYC-37 | 黄铁矿 | 0.04 | 8.37 | 39.65 | 41.48 | 1.55 | 5.21 | 31.81 | 0.33 | 660.41 | 4.20 | 87.89 | 161.60 | 268.05 | 564.96 | ||||||||||||||||||||||
LYC-13-2 | 黄铁矿 | 0.00 | 0.26 | 4.38 | 1.82 | 0.00 | 0.29 | 1 709.75 | 29.06 | 16 181.61 | 6.12 | 310.95 | 1 810.50 | 83.78 | 147.11 | ||||||||||||||||||||||
LYC-29 | 黄铁矿 | 0.00 | 2.03 | 3.66 | 40.25 | 1.25 | 2.98 | 393.66 | 7.31 | 1 518.16 | 4.63 | 250.57 | 1 332.50 | 111.91 | 58.03 | ||||||||||||||||||||||
LYC-41 | 黄铁矿 | 0.91 | 29.39 | 39.10 | 150.52 | 4.47 | 4.03 | 44.25 | 0.47 | 495.71 | 1.71 | 70.65 | 73.28 | 425.84 | 856.33 | ||||||||||||||||||||||
LYC-58 | 黄铁矿 | 0.00 | 1.43 | 7.97 | 4.52 | 0.22 | 3.83 | 36.55 | 0.45 | 403.74 | 0.74 | 588.11 | 49.59 | 441.87 | 1 057.84 | ||||||||||||||||||||||
LYC-60 | 黄铁矿 | 0.00 | 2.16 | 14.12 | 44.22 | 1.39 | 4.12 | 65.60 | 1.10 | 511.33 | 1.67 | 88.02 | 156.40 | 481.94 | 140.53 | ||||||||||||||||||||||
LYC-26-1 | 石英斑岩 | 0.81 | 13.66 | 194.91 | 67.09 | 3.13 | 5.25 | ||||||||||||||||||||||||||||||
LYC-15-2 | 花岗斑岩 | 1.01 | 14.39 | 243.02 | 54.18 | 2.09 | 9.58 | ||||||||||||||||||||||||||||||
LYC-16-2 | 花岗斑岩 | 0.82 | 12.19 | 254.16 | 57.93 | 2.12 | 11.34 | ||||||||||||||||||||||||||||||
LYC-17-2 | 花岗斑岩 | 0.70 | 12.48 | 284.73 | 51.19 | 2.04 | 9.67 | ||||||||||||||||||||||||||||||
LYC-17-4 | 花岗斑岩 | 0.99 | 15.60 | 196.23 | 47.41 | 2.15 | 10.46 | ||||||||||||||||||||||||||||||
LYC-19-1 | 花岗斑岩 | 0.79 | 13.30 | 300.07 | 57.07 | 2.26 | 10.20 | ||||||||||||||||||||||||||||||
LYC-20 | 花岗斑岩 | 0.93 | 15.79 | 146.04 | 48.43 | 2.17 | 9.25 |
图9 梨园金矿稀土元素球粒陨石标准化分布曲线(a)与微量元素原始地幔标准化蛛网图(b)
Fig.9 Chondrite-normalized REE diagrams (a) and primitive-mantle-normalized trace element spidergrams(b) for the Liyuan gold deposit
图10 梨园金矿床黄铁矿中微量元素浓度的二元曲线 a—锌与镉;b—铅与锑;c—铜与砷;d—钴与砷;e—铈与镧;f—钴与镍。
Fig.10 Binary plots of selected trace element concentrations in pyrite from the Liyuan gold deposit
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