Zircon U-Pb ages, geochemistry and geologi-cal significance of gneissic granodiorite in northern Lenghu, Qinghai Province
-
摘要:
欧龙布鲁克地块西北缘青海冷湖北片麻状花岗闪长岩SiO2、MgO含量较低，Al2O3、Na2O、CaO含量较高，铝饱和指数（ASI）为0.79~0.92，属高钾钙碱性系列。球粒陨石标准化稀土元素配分曲线表现为轻稀土元素富集型，轻、重稀土元素分馏明显，Eu呈弱的负异常（δEu=0.82~0.90）。微量元素地球化学特征显示，岩石富集大离子亲石元素Rb、Th和U，弱亏损高场强元素Nb、Ta、Zr等，显示出与板块俯冲作用有关的造山带岩浆岩的特征。青海冷湖北片麻状花岗闪长岩为角闪岩相压力条件下变玄武质岩石部分熔融的产物。LA-ICP-MS锆石206Pb/238Pb年龄为470.2±1.2Ma（n=19，MSWD=0.68），代表片麻状花岗闪长岩的成岩年龄。结合区域地质演化特征认为，该岩体形成于火山弧构造环境，是早奥陶世北阿尔金洋壳向欧龙布鲁克地块俯冲作用的地质记录。
-
关键词:
- 片麻状花岗闪长岩 /
- LA-ICP-MS锆石U-Pb测年 /
- 地球化学 /
- 青海冷湖北
Abstract:The gneissic granodiorite in northern Lenghu of Qinghai Province is characterized by low SiO2 and MgO, and high Al2O3, Na2O and CaO, with alumina saturation index A/CNK of 0.92~0.797. These features suggest that this gneissic granodiorite belongs to the high-K calci-alkaline peraluminous rocks and metaluminous rocks. The chondrite-normalized REE values show right-in-clined patterns with slightly negative Eu anomaly. The primitive mantle normalized trace element spidergrams are characterized by en-riched LILE(such as Rb, Th and U) and depleted HFSE(such as Nb, Ta and Zr), which is comparable with the characteristics of oro-genic magmatic rocks, suggesting a volcanic arc tectonic setting associated with subduction. Moreover, the gneissic granodiorite is characterized by rich Na2O and A12O3, high Sr, Sr/Yb and LREE, and inconspicuous differentiation of HREE. These features imply that the rocks in northern Lenghu of Qinghai were probably formed by the melting of basaltic rocks with amphibole as a residua phase. With the U-Pb isotopic age of 470.2±1.2Ma(n=19, MSWD=0.68) of granodiorite, the authors believe that north Al-tun oceanic crust subducted toward Oulongbuluke block in Early Ordovician.
-
致谢: 在论文修改过程中审稿专家、中国地质调查局西安地质调查中心校培喜教授级高工、何世平研究员提出了许多建设性的修改意见，在此一并表示诚挚的感谢。
-
![]()
![]()
图 2 青海冷湖北片麻状花岗闪长岩野外露头（a）及镜下显微照片（b）
Qz—石英；Pl—斜长石；Kf—碱性长石；Hbl—角闪石；Bi—黑云母
Figure 2. Typical field photograph (a) and photomicrograph (b) of granodiorite in northern Lenghu, Qinghai Province
![]()
图 3 青海冷湖北片麻状花岗闪长岩典型锆石阴极发光（CL）图像
Figure 3. Representative zircon CL images, ages of gneissic granodiorite in northern Lenghu, Qinghai Province
![]()
图 4 青海冷湖北片麻状花岗闪长岩LA-ICP-MS锆石U-Pb谐和图（a）和206Pb/238U年龄图（b）
Figure 4. LA-ICP-MS zircon U-Pb concordia diagram (a) and 206Pb/238U age (b) of gneissic granodiorite in northern Lenghu, Qinghai Province
![]()
图 5 青海冷湖北片麻状花岗闪长岩SiO2-K2O图解[27]
Figure 5. SiO2-K2O diagram for gneissic granodiorite in northern Lenghu, Qinghai Province
![]()
图 6 青海冷湖北片麻状花岗闪长岩A/CNK-A/NK图解[28]
Figure 6. A/CNK-A/NK diagram for gneissic granodiorite in northern Lenghu, Qinghai Province
![]()
图 7 青海冷湖北片麻状花岗闪长岩稀土元素球粒陨石标准化图解（a）和微量元素原始地幔标准化蛛网图（b）（标准化值据参考文献[29]）
Figure 7. Chondrite-normalized REE pattern(s a)and primitive-mantle normalized spidergram(b)for gneissic granodiorite in northern Lenghu, Qinghai Province
![]()
图 8 海冷湖北片麻状花岗闪长岩（Na2O+K2O+FeO+Mg+TiO2）-（Na2O+K2O）/（FeO+MgO+TiO2）图解[43]
Figure 8. Diagram of Na2O+K2O+FeO+Mg+TiO2-(Na2O+K2O)/(FeO+MgO+TiO2)for gneissic granodiorite in northern Lenghu, Qinghai Province
![]()
图 9 青海冷湖北片麻状花岗闪长岩Rb/Sr-Rb/Ba图解[44]
Figure 9. Diagram of Rb/Sr -Rb/Ba for gneissic gneissic granodiorite in northern Lenghu, Qinghai Province
![]()
图 10 青海冷湖北片麻状花岗闪长岩R1-R2判别图[45]
1—幔源花岗岩；2—板块碰撞前消减区花岗岩；3—板块碰撞后隆起花岗岩；4—晚造山期花岗岩；5—碰撞后花岗岩；6—地壳熔融的花岗岩（同碰撞）
Figure 10. Diagram of R1-R2 for gneissic granodiorite in northern Lenghu, Qinghai Province
![]()
图 11 青海冷湖北片麻状花岗闪长岩(Y+Nb)-Rb判别图[46]
ORG—大洋脊花岗岩；WPG—板内花岗岩；VAG—火山弧花岗岩；syn-COLG—同碰撞花岗岩；post-COLG—后碰撞花岗岩
Figure 11. Diagram of (Y+Nb)-Rb for gneissic granodiorite in northern Lenghu, Qinghai Province
表 1 青海冷湖北山麻状花岗闪长岩（Pm026-24）LA-ICP-MS锆石U-Th-Pb同位素测年结果
Table 1 LA-ICP-MS zircon U-Th-Pb isotopic analytical data of gneissic granodiorite(Pm026-24)in northern Lenghu, Qinghai Province
测点号 元素含量/10-6 Th/U 同位素比值 年龄/Ma Pb Th U 207Pb/206Pb 1σ 207Pb/235U 1σ 206Pb/238U 1σ 208Pb/232Pb 1σ 206Pb/238U 1σ 207Pb/235U 1σ 207Pb/206Pb 1σ 01 20 257 88 0.34 0.0563 0.0009 0.5898 0.0103 0.0759 0.0004 0.0321 0.0012 472 3 471 8 466 37 02 18 213 93 0.44 0.0571 0.0012 0.6345 0.0137 0.0806 0.0004 0.0315 0.0009 500 3 499 11 495 47 03 29 341 112 0.33 0.0562 0.0011 0.6272 0.0199 0.0809 0.0008 0.0375 0.0015 502 5 494 16 461 44 04 30 344 179 0.52 0.0580 0.0007 0.6476 0.0082 0.0810 0.0004 0.0314 0.0008 502 3 507 6 528 26 05 8 86 50 0.58 0.0566 0.0020 0.6032 0.0218 0.0772 0.0006 0.0427 0.0014 480 4 479 17 478 78 06 17 191 169 0.88 0.0571 0.0010 0.5961 0.0108 0.0758 0.0004 0.0274 0.0008 471 3 475 9 494 39 07 22 258 182 0.71 0.0559 0.0010 0.5880 0.0105 0.0762 0.0004 0.0273 0.0008 474 3 470 8 450 39 08 19 206 213 1.03 0.0564 0.0014 0.5929 0.0153 0.0763 0.0004 0.0257 0.0009 474 3 473 12 468 56 09 22 250 223 0.89 0.0564 0.0009 0.5893 0.0096 0.0758 0.0004 0.0243 0.0008 471 3 470 8 468 35 10 23 263 262 1.00 0.0569 0.0009 0.5918 0.0097 0.0755 0.0004 0.0230 0.0007 469 3 472 8 486 36 12 23 265 263 0.99 0.0559 0.0009 0.5863 0.0091 0.0761 0.0004 0.0211 0.0006 473 3 468 7 448 34 13 21 253 176 0.70 0.0564 0.0011 0.6066 0.0113 0.0780 0.0004 0.0186 0.0005 484 3 481 9 469 41 14 45 553 335 0.61 0.0562 0.0007 0.6087 0.0075 0.0786 0.0004 0.0178 0.0005 488 3 483 6 459 27 15 14 166 160 0.97 0.0569 0.0012 0.5938 0.0126 0.0757 0.0004 0.0153 0.0005 470 3 473 10 488 45 16 38 548 22 0.04 0.0550 0.0006 0.5690 0.0067 0.0750 0.0004 0.0212 0.0010 466 2 457 5 414 26 17 50 663 257 0.39 0.0570 0.0007 0.5952 0.0061 0.0757 0.0006 0.0180 0.0006 470 4 474 5 492 26 18 24 273 301 1.10 0.0569 0.0012 0.6045 0.0143 0.0771 0.0004 0.0188 0.0006 479 3 480 11 486 46 19 13 183 12 0.06 0.0569 0.0018 0.5932 0.0198 0.0756 0.0005 0.0168 0.0005 470 3 473 16 488 72 20 63 884 73 0.08 0.0566 0.0006 0.5935 0.0066 0.0761 0.0004 0.0247 0.0009 473 3 473 5 476 23 21 28 328 375 1.14 0.0562 0.0009 0.5855 0.0103 0.0755 0.0004 0.0174 0.0005 469 3 468 8 461 35 22 25 293 287 0.98 0.0572 0.0009 0.5953 0.0095 0.0754 0.0004 0.0184 0.0005 469 2 474 8 501 35 23 23 295 185 0.63 0.0558 0.0009 0.5733 0.0089 0.0745 0.0004 0.0187 0.0006 463 2 460 7 444 34 24 21 240 242 1.01 0.0562 0.0015 0.5855 0.0156 0.0756 0.0004 0.0195 0.0006 470 3 468 12 460 58 25 27 327 310 0.95 0.0574 0.0023 0.5936 0.0238 0.0750 0.0004 0.0181 0.0006 466 3 473 19 508 88 26 28 325 248 0.76 0.0557 0.0008 0.5977 0.0090 0.0779 0.0004 0.0221 0.0006 483 3 476 7 439 33 27 18 207 202 0.97 0.0571 0.0030 0.5855 0.0304 0.0743 0.0005 0.0200 0.0005 462 3 468 24 497 116 28 19 229 152 0.66 0.0573 0.0011 0.5968 0.0111 0.0755 0.0004 0.0231 0.0006 469 3 475 9 503 40 29 19 214 209 0.98 0.0568 0.0010 0.5924 0.0106 0.0757 0.0004 0.0218 0.0006 470 3 472 8 482 38 30 15 168 155 0.92 0.0568 0.0013 0.5914 0.0143 0.0755 0.0004 0.0225 0.0007 469 3 472 11 484 52 
下载: 导出CSV
表 2 青海冷湖北片麻状花岗闪长岩主量元素含量
Table 2 Major element compositions of gneissic granodiorite in northern Lenghu, Qinghai Province
% 样品号 SiO2 TiO2 Al2O3 Fe2O3 FeO MnO MgO CaO Na2O K2O Pm026-24-1 57.55 0.86 18.02 1.94 4.65 0.12 3.09 6.04 3.67 2.12 Pm026-24-2 59.24 0.82 17.63 1.10 4.91 0.11 2.82 5.9 3.61 2.10 Pm026-24-3 57.08 0.89 18.12 2.14 4.7 0.12 3.2 6.04 3.69 2.10 Pm026-24-4 57.08 0.89 18.02 2.10 4.68 0.12 3.17 6.3 3.64 2.07 Pm026-24-5 57.02 0.88 17.98 1.05 5.83 0.12 3.41 5.9 3.69 2.08 Pm026-24-6 57.04 0.89 17.99 1.41 5.53 0.12 3.48 5.5 3.82 2.16 样品号 P2O5 烧失量 TFeO A/CNK A/NK K2O/Na2O R1 R2 Mg# δ Pm026-24-1 0.24 1.65 6.40 0.93 2.16 0.58 1833.23 1152.67 41.0 1.05 Pm026-24-2 0.23 1.53 5.90 0.93 2.15 0.58 1986.49 1116.65 42.7 0.91 Pm026-24-3 0.25 1.66 6.63 0.94 2.17 0.57 1792.37 1160.09 39.9 1.10 Pm026-24-4 0.25 1.66 6.57 0.92 2.19 0.57 1818.68 1184.45 39.8 1.07 Pm026-24-5 0.24 1.77 6.77 0.94 2.16 0.56 1789.14 1152.80 39.2 1.10 Pm026-24-6 0.24 1.81 6.80 0.97 2.09 0.57 1724.74 1113.69 40.0 1.17
下载: 导出CSV
表 3 青海冷湖北片麻状花岗闪长岩稀土元素含量
Table 3 REE compositions of granodiorite in northern Lenghu, Qinghai Province
10-6 样品号 La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Pm026-24-1 38.20 75.71 8.81 30.20 5.98 1.61 5.07 0.8 4.30 0.87 2.45 Pm026-24-2 40.21 77.10 8.92 30.61 5.97 1.53 5.09 0.78 4.31 0.86 2.40 Pm026-24-3 41.50 82.2 9.44 32.82 6.65 1.67 5.58 0.87 4.73 0.9 2.64 Pm026-24-4 35.01 65.9 8.08 28.51 5.77 1.56 4.99 0.76 4.19 0.82 2.30 Pm026-24-5 38.70 75.4 9.09 32.83 6.27 1.76 5.40 0.87 4.83 0.95 2.69 Pm026-24-6 40.31 81.6 9.52 34.60 6.64 1.77 5.98 0.94 5.30 1.04 2.95 样品号 Tm Yb Lu ∑REE LREE HREE LREE/HREE δEu （La/Yb）N （La/Sm）N Gd/Yb）N Pm026-24-1 0.38 2.45 0.37 177.19 160.50 16.69 9.62 0.87 11.18 4.02 1.67 Pm026-24-2 0.37 2.38 0.37 180.88 164.32 16.56 9.92 0.83 12.12 4.24 1.73 Pm026-24-3 0.38 2.57 0.40 192.33 174.26 18.07 9.64 0.82 11.58 3.93 1.75 Pm026-24-4 0.36 2.30 0.36 160.89 144.81 16.08 9.01 0.87 10.92 3.82 1.75 Pm026-24-5 0.42 2.71 0.42 182.31 164.02 18.29 8.97 0.90 10.24 3.88 1.61 Pm026-24-6 0.45 2.92 0.44 194.45 174.43 20.02 8.71 0.84 9.90 3.82 1.65
下载: 导出CSV
表 4 青海冷湖北片麻状花岗闪长岩微量元素含量分析结果
Table 4 Trace element compositions of gneissic granodiorite in northern Lenghu, Qinghai Province
10-6 样品号 Ba Rb Sr Nb Ta Hf Zr Th U Cr Pm026-24-1 554.12 94.04 612.05 23.72 2.02 4.83 167.03 13.63 2.52 16.20 Pm026-24-2 549.01 100.31 611.01 22.51 2.01 4.77 162.11 14.52 2.44 9.84 Pm026-24-3 546.03 95.15 609.11 23.53 2.03 4.74 146.21 14.60 2.51 14.61 Pm026-24-4 548.11 66.80 570.23 24.33 2.14 4.69 156.09 12.84 2.49 16.83 Pm026-24-5 582.13 98.81 590.24 27.64 2.26 4.27 143.18 13.90 2.44 18.90 Pm026-24-6 536.21 73.84 533.17 27.90 2.22 5.72 192.22 14.61 2.61 24.24 样品号 Y Sc Ga Co Li Be Cs Zn Ge Pb Pm026-24-1 24.62 15.30 21.70 16.71 30.44 1.69 3.21 75.91 1.83 12.91 Pm026-24-2 24.41 15.30 21.33 15.90 28.61 2.02 3.13 73.04 1.77 12.50 Pm026-24-3 25.42 16.21 22.43 17.01 29.62 2.10 2.96 83.62 1.84 12.20 Pm026-24-4 23.64 13.93 21.11 16.42 28.60 2.01 2.78 68.12 1.82 11.32 Pm026-24-5 26.43 17.32 22.40 17.12 29.13 1.61 3.22 77.83 1.90 11.24 Pm026-24-6 29.81 12.10 22.23 16.13 30.02 2.26 3.01 76.04 1.83 11.02
下载: 导出CSV
-
郝国杰, 陆松年, 王惠初, 等.柴达木盆地北缘前泥盆纪构造格架及欧龙布鲁克古陆块地质演化[J].地学前缘, 2004, 11(3):115-122. http://www.cnki.com.cn/Article/CJFDTOTAL-DXQY200403016.htm 王惠初, 陆松年, 莫宣学, 等.柴达木盆地北缘早古生代碰撞造山系统[J].地质通报, 2005, 24(7):603-612. http://dzhtb.cgs.cn/ch/reader/view_abstract.aspx?flag=1&file_no=200507123&journal_id=gbc 陈能松, 王新宇, 张宏飞, 等.柴-欧微地块花岗岩地球化学和Nd-Sr-Pb同位素组成:基底性质和构造属性启示[J].地球科学, 2007, 32(1):7-21. http://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200701001.htm 刘永顺, 于海峰, 辛后田, 等.阿尔金山地区构造单元划分和前寒武纪重要地质事件[J].地质通报, 2009, 28(10):1430-1438. doi: 10.3969/j.issn.1671-2552.2009.10.009 刘永顺, 辛后田, 周世军, 等.阿尔金山东段拉配泉地区前寒武纪及古生代构造演化[M].北京:地质出版社, 2010. 查显锋, 辜平阳, 计文化, 等.欧龙布鲁克地块西段达肯大坂岩群物质组成及变形特征研究[J].地质科学, 2013, 48(4):1103-1114. http://www.cnki.com.cn/Article/CJFDTOTAL-DZKX201304010.htm 吴才来, 杨经绥, Wooden J L, 等.柴达木山花岗岩锆石SHRIMP定年[J].科学通报, 2001, 46(20):1743-1747. doi: 10.3321/j.issn:0023-074X.2001.20.018 吴才来, 杨经绥, Wooden J L, 等.柴达木北缘都兰野马滩花岗岩锆石SHRIMP定年[J].科学通报, 2004, 49(16):1667-1669. doi: 10.3321/j.issn:0023-074X.2004.16.014 吴才来, 杨经绥, 许志琴, 等.柴达木盆地北缘古生代超高压带中花岗质岩浆作用[J].地质学报, 2004, 78(5):658-674. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE200405009.htm 吴才来, 郜源红, 吴锁平, 等.柴达木盆地北缘大柴旦地区古生代花岗岩锆石SHRIMP定年[J].岩石学报, 2007, 23(8):1861-1875. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200708007.htm 吴才来, 郜源红, 吴锁平, 等.柴北缘西段花岗岩锆石SHRIMP U-Pb定年及其岩石地球化学特征[J].地球科学, 2008, 38(8):930-949. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK200808002.htm 史仁灯, 杨经绥, 吴才来, 等.柴达木北缘超高压变质带中的岛弧火山岩[J].地质学报, 2004, 78(1):52-64. http://www.cnki.com.cn/Article/CJFDTOTAL-DZXE200401007.htm 史仁灯, 杨经绥, 吴才来.柴北缘早古生代岛弧火山岩中埃达克质英安岩的发现及其地质意义[J].岩石矿物学杂志, 2003, 22(3):229-236. http://www.cnki.com.cn/Article/CJFDTOTAL-YSKW200303004.htm 董增产, 校培喜, 辜平阳, 等.青海冷湖盐场北山花岗闪长岩年代学、地球化学及其Hf同位素特征[J].西北地质, 2014, 47(4):141-155. http://www.cnki.com.cn/Article/CJFDTOTAL-XBDI201404017.htm 董增产, 杨成, 辜平阳, 等.青海冷湖盐场北山黑云母二长花岗岩年代学、地球化学及其地质意义[J].大地构造与成矿学, 2015, 39(1):167-177. http://www.cnki.com.cn/Article/CJFDTOTAL-DGYK201501015.htm 邱士东, 辜平阳, 庞新愉, 等.青海冷湖北片麻状石英闪长岩的MC-LA-ICP-MS锆石U-Pb年龄、地球化学特征及地质意义[J].地质论评, 2015, 61(4):948-959. http://www.cnki.com.cn/Article/CJFDTOTAL-DZLP201504023.htm 校培喜, 高晓峰, 胡云绪, 等.阿尔金-东昆仑西段成矿带地质背景研究[M].北京:地质出版社, 2014. 戚学祥, 李海兵, 吴才来, 等.北阿尔金恰什坎萨依花岗闪长岩的锆石SHRIMP U-Pb定年及其地质意义[J].科学通报, 2005, 50(6):571-576. http://www.cnki.com.cn/Article/CJFDTOTAL-KXTB20050600B.htm 孟令通, 陈柏林, 罗迪柯, 等.北阿尔金喀腊大湾地区4337高地北花岗闪长岩SHRIMP U-Pb定年及其构造意义[J].吉林大学学报, 2015, 45(6):1757-1771. http://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ201506016.htm 郝杰, 王二七, 刘小汉, 等.阿尔金山脉中金雁山早古生代碰撞造山带:弧岩浆岩的确定与岩体锆石U-Pb和蛇绿混杂岩40Ar/39Ar年代学研究的证据[J].岩石学报, 2006, 22(11):2743-2752. doi: 10.3969/j.issn.1000-0569.2006.11.012 杨屹, 陈宣华, Gehrels G, 等.阿尔金山早古生代岩浆活动与金成矿作用[J].矿床地质, 2004, 23(4):464-472. http://www.cnki.com.cn/Article/CJFDTOTAL-KCDZ200404005.htm 查显锋, 辜平阳, 计文化, 等.欧龙布鲁克地块西段达肯大坂岩群物质组成及变形特征研究[J].地质科学, 2013, 48(4):1103-1114. http://www.cnki.com.cn/Article/CJFDTOTAL-DZKX201304010.htm 辛后田, 王惠初, 周世军.柴北缘的大地构造演化及其地质事件群[J].地质调查与研究, 2006, 29(4):311-320. http://youxian.cnki.com.cn/yxdetail.aspx?filename=DGYK20170929000&dbname=CAPJ2015 Gao S, Liu X M, Yuan H L, et al. Analysis of forty-two major and trace elements of USGS and NIST SRM Glasses by LA-ICPMS[J]. Geostand. Newsl., 2002, 22:181-195. http://adsabs.harvard.edu/abs/2003GeCAS..67R.116G
Andersen T. Correction of common lead in U-Pb analyses that do not report 204Pb[J]. Chemical Geology, 2002, 192:59-79. doi: 10.1016/S0009-2541(02)00195-X
Ludwig K R. 3.0-A geochronological toolkit for Micro-soft Excel[J]. Berkeley Geochronology Center, Special Publication, 2003, (4):1-70.
Rickwood P C. Boundary lines within petrologic diagrams which use oxides of major and minor elements[J]. Lithos, 1989, 22(4):247-263. doi: 10.1016/0024-4937(89)90028-5
Maniar P D, Piccoli P M. Tectonic discrimination of granitoids[J].Geol. Soc. Am. Bull., 1989, 101:635-643. doi: 10.1130/0016-7606(1989)101<0635:TDOG>2.3.CO;2
Sun S S, McDonough W F. Chemical and isotopic systematics of oceanic basalts:implications for mantle composition and process[C]//Sauders A D and Norry M J. Magmatism in the Ocean Basins. Geological Society. Special Publication, 1989, 42:313-345.
Altherr R, Topuz G, Siebel W, et al. Geochemical and Sr-Nd-Pb isotopic characteristics of Paleocene plagioleucitites from the eastern Pontides(NE Turkey)[J]. Lithos, 2008, 105(1/2):149-161.
Boari E, Avanzinelli R, Melluso L, et al. Isotope geochemistry(SrNd-Pb)and petrogenes is of leucite-bearing volcanic rocks from "Colli A lban" volcano, Roman Magmatic Province, Central Italy:Inferences on volcano evolution and magma genesis[J]. Bulletin of Volcanology, 2009, 71(9):977-1005. doi: 10.1007/s00445-009-0278-6
Rapp R P, Watson E B. Dehydration melting of metabasalt at 8-32 kbar:implications for continental growth and crust-mantle recycling[J]. J. Petrol., 1995, 36:891-931. doi: 10.1093/petrology/36.4.891
Van de Flierdt T, Hoernes S, Jung S, et al. Lower crustal melting and the role of open-system processes in the genesis of synorogenic diorite-granite-leucogranite associations:const raints from Sr-NdO isotopes from the Bandombaai complex, Namibia[J]. Lithos, 2003, 67:205-226. doi: 10.1016/S0024-4937(03)00016-1
张旗, 王焰, 李承东, 等.花岗岩的Sr-Yb分类及其地质意义[J].岩石学报, 2006, 22(9):2249-2269. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200609000.htm 张旗, 王元龙, 金惟俊, 等.造山前、造山和造山后花岗岩的识别[J].地质通报, 2008, 27(1):1-18. http://dzhtb.cgs.cn/ch/reader/view_abstract.aspx?flag=1&file_no=20080101&journal_id=gbc Zhang S B, Zheng Y F, Zhao Z F, et al. Origin of TTG-like rocks from anatexis of ancient lower crust:Geochemical evidence from Neoproterozoic granitoids in South China[J]. Lithos, 2009, 133:347-368.
Jung S, Pänder J A. Source composition and melting tempera-tures of orogenic:constraints from CaO/Na2O, Al2O3/TiO2 and accessory mineral saturation thermometry[J]. European Journal of Mineral-ogy, 2007, 19:859-870. doi: 10.1127/0935-1221/2007/0019-1774
李平, 陈隽璐, 徐学义, 等.北秦岭武关岩体LA-ICPMS锆石UPb定年及岩石成因研究[J].岩石矿物学杂志, 2011, 30(4):610-624. http://www.cnki.com.cn/Article/CJFDTOTAL-YSKW201104006.htm Jung S, Masberg P, Mihm D. Partial melting of diverse crustal sou rces-constrains from Sr-Nd-O isotope compositions of quartz diorite-granodiorite-leucogranite associations (Kaoko belt Belt, Na-mibia)[J].Lithos, 2009, 111:236-251. doi: 10.1016/j.lithos.2008.10.010
刘良. 阿尔金高压变质岩与蛇绿岩及其大地构造意义[D]. 北京: 中国科学院地质研究所博士学位论文, 1999. http://d.wanfangdata.com.cn/Thesis/Y323646 张志诚, 郭召杰, 宋彪, 等.阿尔金山北缘蛇绿混杂岩中辉长岩锆石SHRIMP定年及其地质意义[J].岩石学报, 2009, 25(3):568-576. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB200903010.htm 高晓峰, 校培喜, 过磊, 等.北阿尔金地区早古生代有限洋盆开启时限:来自斜长花岗岩的证据[J].地球科学, 2012, 42(3):359-368. http://www.cnki.com.cn/Article/CJFDTOTAL-JDXK201203006.htm Patiño Dounce A E, Beard J S. Dehydration-melting of Biotite Gneiss and Quartz Amphiboli te from 3 to 15 kbar[J]. J. Peterology, 1995, 36(3):707-738. doi: 10.1093/petrology/36.3.707
Sylvester P J. Postcollision strongly peraluminous granites[J]. Lith-os, 1998, 45:29-44. doi: 10.1016/S0024-4937(98)00024-3
Batchelor R A, Bowden P. Petrogenetic interpretation of granitoid rock series using multicationic parameters[J]. Chemical Geology, 1985, 48(1):43-55.
Pearce J A, Harris N B, Tindle A G. Trace element discrimination diagrams for the tectonic interpretation of granitic rocks[J]. Journal of Petrology, 1984, 25(4):956-983. doi: 10.1093/petrology/25.4.956
辜平阳, 董增产, 查显峰, 等. 青海阿尔金1: 5万打柴沟等6幅区域地质调查报告. 2015.
计量
- 文章访问数: 2304
- HTML全文浏览量: 312
- PDF下载量: 2357
