1 地质背景
图1 黑石山二长花岗岩体大地构造位置(a)及地质简图(b)(修改自李注苍等,2016)1.第四纪全新世冲洪积层;2.晚新近世苦泉组;3.晚白垩世赤金堡组;4.早二叠世双堡塘组;5.晚石炭世干泉组二段;6.晚石炭世干泉组一段;7.早石炭世红柳园组二段;9.早石炭世红柳园组一段;9.蓟县系平头山组;10.长城系古硐井群上岩组;11.长城系古硐井组中岩组;12.长城系古硐井组下岩组;13.中三叠世花岗斑岩;14.中三叠世闪长玢岩;15.晚二叠世二长花岗岩;16.早二叠世正长花岗岩;17.地质界线;18.不整合接触界线;19.区域断层;20.缝合带断层;21.采样位置;22.省界线 Fig. 1 Tectonic location (a) and geological sketch diagram(b) of the Heishishan monzogranite mass(modified after Li et al,2016) |
2 岩体地质和岩石学特征
图2 黑石山正长花岗岩和二长花岗岩手标本和显微镜下特征(a)二长花岗岩糜棱岩化(手标本);(b)二长花岗岩中钾长石和斜长石含量相近(+);(c)二长花岗岩钾长石属微斜条纹长石,条纹的形态以点滴状和微脉状为主(+);(d)正长花岗岩(手标本);(e)正长花岗岩,钾长石颗粒明显粗大(+);(f)正长花岗岩,局部具破碎带(+);Bi-黑云母;Kf-钾长石;Ms-白云母;Pl-斜长石;Q-石英 Fig. 2 Hand specimens and microscopic features of syenogranite and monzonogranite from Heishishan |
3 样品采集与测试
3.1 样品的采集
3.2 测试方法
4 岩石地球化学特征
4.1 主量元素特征
表1 黑石山花岗岩岩石地球化学分析数据Table 1 Analysis data of rock geochemical of the Heishishan granite(%) |
| 序号 | 样品编号 | 侵入体名称 | SiO2 | TiO2 | Al2O3 | Fe2O3 | FeO | MnO | MgO | CaO |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | PM03YQ43-1 | 正长花岗岩 | 75.86 | 0.17 | 11.34 | 0.80 | 0.90 | 0.03 | 0.49 | 0.92 |
| 2 | 2014X YQ-10 | 二长花岗岩 | 73.88 | 0.48 | 13.52 | 1.28 | 0.81 | 0.02 | 0.41 | 0.96 |
| 3 | 2014X YQ-23 | 二长花岗岩 | 72.10 | 0.64 | 14.24 | 0.78 | 2.21 | 0.04 | 0.38 | 1.05 |
| 4 | 2014X YQ-24 | 二长花岗岩 | 72.85 | 0.70 | 13.95 | 0.93 | 2.31 | 0.04 | 0.37 | 1.10 |
| 5 | 2014X YQ-25 | 二长花岗岩 | 70.33 | 0.70 | 14.46 | 1.31 | 2.02 | 0.04 | 0.31 | 1.34 |
| 序号 | 样品编号 | 侵入体名称 | Na2O | K2O | P2O5 | CO2 | H2O+ | H2O- | 灼减 | 总计 |
| 1 | PM03YQ43-1 | 正长花岗岩 | 2.94 | 4.68 | 0.05 | 0.20 | 0.88 | 0.21 | 1.42 | 100.90 |
| 2 | 2014X YQ-10 | 二长花岗岩 | 2.45 | 4.18 | 0.06 | 0.68 | 0.88 | 0.18 | - | 99.78 |
| 3 | 2014X YQ-23 | 二长花岗岩 | 3.10 | 4.32 | 0.09 | 0.36 | 1.00 | 0.27 | - | 100.57 |
| 4 | 2014X YQ-24 | 二长花岗岩 | 2.72 | 4.42 | 0.10 | 0.50 | 0.72 | 0.20 | - | 100.92 |
| 5 | 2014X YQ-25 | 二长花岗岩 | 2.74 | 4.37 | 0.10 | 0.56 | 1.19 | 0.12 | - | 99.59 |
|
表2 黑石山花岗岩岩石地球化学分析调整后数据、标准矿物计算及相关参数Table 2 Adjusted data,standard minerals calculation and relevant parameters of rock geochemical analysis of the Heishishan granite(%) |
| 序号 | 样品编号 | 侵入体名称 | SiO2 | TiO2 | Al2O3 | Fe2O3 | FeO | MnO | MgO | CaO | Na2O |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | PM03YQ43-1 | 正长花岗岩 | 77.26 | 0.18 | 11.55 | 0.78 | 0.95 | 0.03 | 0.50 | 0.94 | 2.99 |
| 2 | 2014X YQ-10 | 二长花岗岩 | 75.36 | 0.49 | 13.79 | 0.88 | 1.21 | 0.02 | 0.41 | 0.98 | 2.50 |
| 3 | 2014X YQ-23 | 二长花岗岩 | 72.87 | 0.64 | 14.39 | 0.79 | 2.23 | 0.04 | 0.39 | 1.06 | 3.13 |
| 4 | 2014X YQ-24 | 二长花岗岩 | 73.22 | 0.71 | 14.02 | 0.93 | 2.32 | 0.04 | 0.38 | 1.10 | 2.74 |
| 5 | 2014X YQ-25 | 二长花岗岩 | 71.97 | 0.72 | 14.80 | 1.34 | 2.07 | 0.04 | 0.32 | 1.37 | 2.80 |
| 序号 | 样品编号 | 侵入体名称 | K2O | P2O5 | Hy.fs | Mt | Il | Ap | 碱性 | Alk | A/NK |
| 1 | PM03YQ43-1 | 正长花岗岩 | 4.77 | 0.05 | 0.80 | 1.14 | 0.33 | 0.12 | 0.67 | 7.76 | 1.14 |
| 2 | 2014X YQ-10 | 二长花岗岩 | 4.26 | 0.06 | 0.71 | 1.28 | 0.93 | 0.14 | 0.49 | 6.76 | 1.58 |
| 3 | 2014X YQ-23 | 二长花岗岩 | 4.37 | 0.09 | 2.46 | 1.14 | 1.22 | 0.19 | 0.52 | 7.50 | 1.46 |
| 4 | 2014X YQ-24 | 二长花岗岩 | 4.44 | 0.10 | 2.40 | 1.36 | 1.35 | 0.21 | 0.51 | 7.18 | 1.51 |
| 5 | 2014X YQ-25 | 二长花岗岩 | 4.47 | 0.10 | 1.58 | 1.94 | 1.36 | 0.21 | 0.49 | 7.28 | 1.57 |
| 序号 | 样品编号 | 侵入体名称 | Di.fs | Hy.en | Q | Or | Ab | An | C | Di.wo | Di.en |
| 1 | PM03YQ43-1 | 正长花岗岩 | 0.06 | 1.15 | 38.70 | 28.19 | 25.31 | 3.96 | 0 | 0.16 | 0.09 |
| 2 | 2014X YQ-10 | 二长花岗岩 | 0 | 1.04 | 41.66 | 25.23 | 21.13 | 4.47 | 3.41 | 0 | 0 |
| 3 | 2014X YQ-23 | 二长花岗岩 | 0 | 0.97 | 34.20 | 25.85 | 26.47 | 4.75 | 2.75 | 0 | 0 |
| 4 | 2014X YQ-24 | 二长花岗岩 | 0 | 0.94 | 36.54 | 26.28 | 23.13 | 4.90 | 2.90 | 0 | 0 |
| 5 | 2014X YQ-25 | 二长花岗岩 | 0 | 0.79 | 34.68 | 26.45 | 23.70 | 6.23 | 3.05 | 0 | 0 |
| 序号 | 样品编号 | 侵入体名称 | A/CNK | σ | AR | DI | SI | FL | MF | Mg# | Fe*值 |
| 1 | PM03YQ43-1 | 正长花岗岩 | 0.98 | 1.76 | 4.28 | 92.2 | 4.98 | 194.59 | 77.7 | 0.23 | 1.65 |
| 2 | 2014X YQ-10 | 二长花岗岩 | 1.31 | 1.41 | 2.69 | 88.02 | 4.45 | 191.18 | 83.73 | 0.17 | 2 |
| 3 | 2014X YQ-23 | 二长花岗岩 | 1.22 | 1.88 | 2.89 | 86.52 | 3.54 | 175.15 | 88.67 | 0.12 | 2.94 |
| 4 | 2014X YQ-24 | 二长花岗岩 | 1.24 | 1.71 | 2.81 | 85.95 | 3.48 | 182.52 | 89.65 | 0.11 | 3.16 |
| 5 | 2014X YQ-25 | 二长花岗岩 | 1.24 | 1.83 | 2.64 | 84.83 | 2.88 | 170.26 | 91.48 | 0.09 | 3.27 |
|
图3 黑石山花岗岩SiO2-全碱图解(底图据Middlemost,1994)Fig. 3 SiO2-total alkali diagram of the Heishishan granite(base map according to Middlemost,1994) |
图4 黑石山花岗岩SiO2-AR图解(底图据Middlemost,1994)Fig. 4 SiO2-AR dagram of the Heishishan granite(base map according to Middlemost,1994) |
图5 黑石山花岗岩SiO2-K2O图解(底图据Middlemost,1985)Fig. 5 SiO2-K2O diagram of the Heishishan granite(base map according to Middlemost,1985) |
图6 黑石山花岗岩A/CNK-A/NK图解(底图据Maniar et al, 1989)Fig. 6 A/NKC-A/NK diagram of the Heishishan granite(base map according to Maniar et al, 1989) |
4.2 微量元素特征
表3 黑石山花岗岩体微量元素数据及相关参数Table 3 Trace element data and related parameters of the Heishishan granite body(×10-6) |
| 序号 | 样品编号 | 侵入体名称 | Ba | Rb | Th | U | K | Nb | Sr | P |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | PM03WL43-1 | 正长花岗岩 | 554.0 | 244 | 14.3 | 1.35 | 39 561.25 | 6.08 | 74.9 | 240.06 |
| 2 | 2014X WL-10 | 二长花岗岩 | 61.0 | 264 | 10.7 | 1.47 | 35 388.32 | 68.4 | 48.4 | 276.05 |
| 3 | 2014X WL-23 | 二长花岗岩 | 384.5 | 239.7 | 17.8 | 4.99 | 36 272.6 | 69.5 | 116.3 | 388.22 |
| 4 | 2014X WL-24 | 二长花岗岩 | 382.4 | 239 | 20.5 | 4.35 | 36 880.55 | 69.7 | 79.6 | 421.17 |
| 5 | 2014X WL-25 | 二长花岗岩 | 418 | 234 | 12.2 | 3.12 | 37 117.27 | 69.8 | 80.7 | 428.82 |
| 序号 | 样品编号 | 侵入体名称 | Zr | Hf | Ti | Ni | Cr | Co | (Rb/Yb)N | Th* |
| 1 | PM03WL43-1 | 正长花岗岩 | 117 | 0.2 | 1 050.18 | 2.14 | 10.4 | 17.9 | 35.08 | 0.66 |
| 2 | 2014X WL-10 | 二长花岗岩 | 77.4 | 2.8 | 2 916.84 | 1.70 | 3.7 | 7.5 | 53.92 | 0.49 |
| 3 | 2014X WL-23 | 二长花岗岩 | 244.4 | 9.0 | 3 847.49 | 1.70 | 3.7 | 7.4 | 33.80 | 0.86 |
| 4 | 2014X WL-24 | 二长花岗岩 | 268.9 | 9.5 | 4 241.90 | 1.70 | 3.7 | 7.5 | 32.86 | 0.99 |
| 5 | 2014X WL-25 | 二长花岗岩 | 261.4 | 9.8 | 4 306.68 | 1.90 | 3.7 | 8.0 | 43.05 | 0.59 |
| 序号 | 样品编号 | 侵入体名称 | K* | Nb* | Sr* | P* | Zr* | Ti* | ||
| 1 | PM03WL43-1 | 正长花岗岩 | 4.53 | 0.08 | 0.09 | 0.18 | 0.75 | 0.05 | ||
| 2 | 2014X WL-10 | 二长花岗岩 | 2.45 | 1.16 | 0.12 | 0.28 | 0.67 | 0.2 | ||
| 3 | 2014X WL-23 | 二长花岗岩 | 1.92 | 0.95 | 0.12 | 0.16 | 1.35 | 0.18 | ||
| 4 | 2014X WL-24 | 二长花岗岩 | 1.82 | 0.89 | 0.07 | 0.15 | 1.27 | 0.17 | ||
| 5 | 2014X WL-25 | 二长花岗岩 | 2.16 | 1.01 | 0.11 | 0.19 | 1.71 | 0.25 |
|
图7 黑石山花岗岩微量元素蛛网图(标准化数据引自Pearce et al, 1984)Fig. 7 Trace elements spider diagram of the Heishishan granite(standardized data cited from Pearce et al,1984) |
4.3 稀土元素特征
表4 黑石山花岗岩稀土元素数据及相关参数Table 4 Rare earth elements data and related parameters of the Heishishan granite(×10-6) |
| 序号 | 样品编号 | 侵入体名称 | La | Ce | Pr | Nd | Sm | Eu | Gd | Tb |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | PM03XT43-1 | 正长花岗岩 | 33.20 | 75.30 | 10.02 | 35.05 | 8.18 | 1.21 | 6.82 | 1.36 |
| 2 | 2014X XT-10 | 二长花岗岩 | 13.45 | 33.90 | 4.46 | 17.96 | 5.68 | 0.48 | 4.66 | 0.95 |
| 3 | 2014X XT-23 | 二长花岗岩 | 38.00 | 88.23 | 10.14 | 39.34 | 9.05 | 1.21 | 7.27 | 1.31 |
| 4 | 2014X XT-24 | 二长花岗岩 | 45.58 | 105.43 | 12.37 | 48.26 | 10.73 | 1.36 | 8.48 | 1.48 |
| 5 | 2014X XT-25 | 二长花岗岩 | 28.35 | 63.11 | 7.54 | 30.33 | 7.17 | 1.25 | 5.86 | 1.08 |
| 序号 | 样品编号 | 侵入体名称 | Dy | Ho | Er | Tm | Yb | Lu | Y | LREE |
| 1 | PM03XT43-1 | 正长花岗岩 | 7.92 | 1.70 | 4.83 | 0.74 | 4.37 | 0.62 | 42.35 | 162.97 |
| 2 | 2014X XT-10 | 二长花岗岩 | 5.85 | 1.07 | 3.11 | 0.46 | 3.08 | 0.45 | 32.51 | 75.93 |
| 3 | 2014X XT-23 | 二长花岗岩 | 8.24 | 1.61 | 4.65 | 0.67 | 4.46 | 0.67 | 45.21 | 185.98 |
| 4 | 2014X XT-24 | 二长花岗岩 | 9.00 | 1.73 | 4.93 | 0.70 | 4.57 | 0.67 | 47.52 | 223.74 |
| 5 | 2014X XT-25 | 二长花岗岩 | 6.76 | 1.32 | 3.73 | 0.53 | 3.42 | 0.5 | 36.33 | 137.74 |
| 序号 | 样品编号 | 侵入体名称 | HREE | ΣREE | LREE/HREE | δEu | LaN/YbN | (La/Sm)N | (Gd/Yb)N | |
| 1 | PM03XT43-1 | 正长花岗岩 | 70.72 | 233.69 | 2.30 | 0.48 | 5.12 | 2.55 | 1.26 | |
| 2 | 2014X XT-10 | 二长花岗岩 | 52.12 | 128.06 | 1.46 | 0.28 | 2.95 | 1.49 | 1.22 | |
| 3 | 2014X XT-23 | 二长花岗岩 | 74.09 | 260.07 | 2.51 | 0.44 | 5.75 | 2.64 | 1.32 | |
| 4 | 2014X XT-24 | 二长花岗岩 | 79.08 | 302.81 | 2.83 | 0.42 | 6.72 | 2.67 | 1.50 | |
| 5 | 2014X XT-25 | 二长花岗岩 | 59.53 | 197.28 | 2.31 | 0.57 | 5.59 | 2.49 | 1.38 |
|
图8 黑石山花岗岩稀土元素配分图(标准化数据引自Sun et al, 1989)Fig. 8 REE distribution diagram of the Heishishan granite(standardized data cited from Sun et al, 1989) |
5 锆石U-Pb测年
图9 黑石山花岗岩锆石CL图像和206Pb/238U表面年龄值Fig. 9 Zircon CL images and 206Pb/238U surface age of zircon of the Heishishan granite |
表5 黑石山二长花岗岩样品(2014XTW-5)LA-ICP-MS锆石U-Pb同位素分析数据Table 5 U-Pb isotopic analysis data of LA-ICP-MS zircon of the Heishishan monzogranite(2014XTW-5) |
| 样品编号(点号) | 同位素比值 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | rho | 208Pb/232Th | 1σ | 238U/232Th | |
| 2014XTW-5-2 | 0.0571 | 0.0020 | 0.3550 | 0.0135 | 0.0449 | 0.0010 | 0.5793 | 0.0140 | 0.0005 | 1.9942 |
| 2014XTW-5-3 | 0.0555 | 0.0024 | 0.3405 | 0.0142 | 0.0445 | 0.0009 | 0.4673 | 0.0133 | 0.0004 | 1.5313 |
| 2014XTW-5-4 | 0.0524 | 0.0018 | 0.3211 | 0.0126 | 0.0439 | 0.0008 | 0.4646 | 0.0146 | 0.0004 | 2.0973 |
| 2014XTW-5-7 | 0.0507 | 0.0020 | 0.3141 | 0.0131 | 0.0448 | 0.0009 | 0.4804 | 0.0150 | 0.0005 | 1.4133 |
| 2014XTW-5-8 | 0.0532 | 0.0025 | 0.3306 | 0.0163 | 0.0449 | 0.0008 | 0.3521 | 0.0156 | 0.0005 | 2.0702 |
| 2014XTW-5-9 | 0.0561 | 0.0019 | 0.3648 | 0.0136 | 0.0468 | 0.0009 | 0.4872 | 0.0148 | 0.0004 | 1.0513 |
| 2014XTW-5-12 | 0.0560 | 0.0024 | 0.3495 | 0.0149 | 0.0453 | 0.0009 | 0.4727 | 0.0154 | 0.0006 | 1.4136 |
| 2014XTW-5-14 | 0.0516 | 0.0021 | 0.3180 | 0.0140 | 0.0446 | 0.0008 | 0.4156 | 0.0152 | 0.0005 | 1.9149 |
| 2014XTW-5-15 | 0.0518 | 0.0018 | 0.3260 | 0.0117 | 0.0455 | 0.0008 | 0.4641 | 0.0153 | 0.0005 | 2.3545 |
| 2014XTW-5-16 | 0.0516 | 0.0017 | 0.3222 | 0.0104 | 0.0454 | 0.0009 | 0.6058 | 0.0154 | 0.0005 | 1.9290 |
| 2014XTW-5-19 | 0.0567 | 0.0030 | 0.3487 | 0.0182 | 0.0452 | 0.0011 | 0.4729 | 0.0153 | 0.0007 | 1.9368 |
| 2014XTW-5-20 | 0.0519 | 0.0022 | 0.3334 | 0.0147 | 0.0467 | 0.0011 | 0.5218 | 0.0151 | 0.0006 | 1.7389 |
| 样品编号(点号) | U-Pb同位素年龄数据/Ma | |||||||||
| 207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | 208Pb/232Th | 1σ | 238U/232Th | 谐和度/% | |
| 2014XTW-5-2 | 494 | 75.9 | 308 | 10.1 | 283 | 6.1 | 281 | 10.4 | 1 | 91 |
| 2014XTW-5-3 | 432 | 89.8 | 298 | 10.8 | 281 | 5.4 | 267 | 7.9 | 1 | 94 |
| 2014XTW-5-4 | 302 | 77.8 | 283 | 9.7 | 277 | 5.0 | 292 | 8.0 | 1 | 98 |
| 2014XTW-5-7 | 233 | 95.4 | 277 | 10.1 | 283 | 5.5 | 301 | 9.5 | 1 | 98 |
| 2014XTW-5-8 | 339 | 107 | 290 | 12.4 | 283 | 4.8 | 313 | 10.3 | 1 | 97 |
| 2014XTW-5-9 | 457 | 71.3 | 316 | 10.1 | 295 | 5.3 | 297 | 8.9 | 1 | 93 |
| 2014XTW-5-12 | 450 | 94.4 | 304 | 11.2 | 286 | 5.6 | 308 | 11.1 | 1 | 93 |
| 2014XTW-5-14 | 265 | 99.1 | 280 | 10.8 | 281 | 5.0 | 305 | 10.2 | 1 | 99 |
| 2014XTW-5-15 | 280 | 84.2 | 287 | 8.9 | 287 | 4.7 | 307 | 9.5 | 1 | 99 |
| 2014XTW-5-16 | 333 | 75.9 | 284 | 8.0 | 286 | 5.5 | 308 | 10.0 | 1 | 99 |
| 2014XTW-5-19 | 480 | 120 | 304 | 13.7 | 285 | 6.9 | 307 | 13.5 | 1 | 93 |
| 2014XTW-5-20 | 280 | 100.0 | 292 | 11.2 | 294 | 6.6 | 303 | 12.6 | 1 | 99 |
6 构造环境探讨
6.1 成因与源岩
图11 黑石山花岗岩Sr-Yb图解及相应相图(底图据Defant et al,1990;张旗等,2006)Fig. 11 Sr-Yb diagram and corresponding phase diagram of the Heishishan granite(base map according to Defant et al,1990;Zhang et al,2006) |
图12 黑石山花岗岩Q-Ab-Or相图解(底图据Tuttle et al,1958)Fig. 12 Q-Ab-Or phase diagram of the Heishishan granite(base map according to Tuttle et al,1958) |
图13 黑石山花岗岩成因判别图解(底图据Collins et al, 1982)Fig. 13 Genetic discrimination diagram of the Heishi-shan granite(base map according to Collins et al,1982) |
图14 黑石山花岗岩体源岩判别图(a底图据Altherr et al,2000;b~d底图据Patiño Douce,1999)Fig. 14 Source rock discrimination of the Heishishan granite body(base map a according to from Altherr et al,2000;base map b,c and d according to Patiño Douce,1999) |
6.2 构造环境
图15 黑石山花岗岩R1-R2构造环境图(底图据Batchelor et al,1985)Fig. 15 R1-R2 structural environment map of the Heishishan granite(base map according to Batchelor et al,1985) |
图16 黑石山花岗岩Rb/30-Hf-Ta*3图解(底图据Wood,1980)Fig. 16 Rb/30-Hf Ta*3 diagram of the Heishishan granite(base map according to Wood, 1980) |
图17 黑石山花岗岩Nb-Y和Rb-Y+Nb图解(a底图据Pearce et al,1984;b底图据Pearce et al,1984)Fig. 17 Nb-Y and Rb-Y+Nb diagrams of the Heishishan granite(base map a according to Pearce et al,1984; base map b according to Pearce et al,1984) |

甘公网安备 62010202000672号