Zircon U-Pb Ages, Sr-Nd Isotopes and Geological Significance of Early Jurassic Volcanic Rocks from Southwest Fujian
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摘要: 华南陆缘在湘南、湘东南、赣南及闽西南地区早中生代发育一条呈近EW向展布的火山岩带，闽西南永定堂堡和五湖藩坑组火山岩是其中的典型代表之一，利用锆石U-Pb测定其形成年龄分别为（189±6）~（195±2）Ma和184±2 Ma，是早侏罗世火山喷发形成的.为了解闽西南早侏罗世火山岩岩浆来源及形成构造背景等信息，对火山岩进行了岩石学鉴定、主量、微量元素地球化学特征和Sr-Nd同位素测试分析.藩坑组火山岩基性和酸性端员戴里间断达20左右，是典型的双峰式火山岩.基性端员玄武岩（碱玄岩）主量元素高TiO2、高TFe2O3（全铁），（Rb/Sr）N、（La/Nb）N、（Ba/Nb）N和（Rb/Yb）N的比值均高于原始地幔值，具有∑REE较高、轻稀土富集，δEu有微弱异常的特征，Isr值在0.704 4~0.707 5之间，εNd（t）介于-1.19~4.30，说明岩浆源可能为较深的软流圈地幔，同时存在部分来自岩石圈地幔的组分.酸性端员流纹岩（英安岩）（Rb/Sr）N和（Rb/Yb）N比值均高于原始地幔值，（Ba/Nb）N比值全部低于原始地幔值，（La/Nb）N既有高值也有低值.具有∑REE较高、轻稀土富集、δEu存在异常的特征.Isr值在0.701 2~0.705 3之间，εNd（t）介于-5.40~-1.95，说明岩浆物质来源为壳幔混熔型，主要为壳源成因，但有幔源组分参与.闽西南早侏罗世双峰式火山岩形成于板内靠近大陆边缘的特殊构造位置，受到古太平洋板块的低角度俯冲-弧后伸展-玄武岩浆底侵作用影响.Abstract: An Early Mesozoic volcanic belt with nearly EW distribution develops in South Hunan, Southeast Hunan, South Jiangxi and Southwest Fujian of the South China continental margin, which is represented by the volcanic rocks of Fankeng Formation from Tangpu and Wuhu villages of Yongding County in the Southwest Fujian. The zircon U-Pb dating results indicate that the volcanic rocks of Fankeng Formation formed in 189±6 Ma-195±2 Ma and 184±2 Ma, i.e., the Early Jurassic. In order to reveal the magma source and tectonic setting of the Early Jurassic volcanic rocks in the Southwest Fujian, the lithology identification, major and trace elements, and Sr-Nd isotope data are presented in this paper. The Daly gap of the basic end-member and the acid end-member of volcanic rocks of Fankeng Formation reaches to about 20, and they therefore constitute a typical bimodal association of volcanic rocks. The basic end-member basalt (tephrite) has high TiO2 and TFe2O3 (all Fe) values, and high ratios of (Rb/Sr)N, (La/Nb)N, (Ba/Nb)N and (Rb/Yb)N ratios, which are all higher than the original mantle values. They are also characterized by the higher ∑REE, enrichment in light rare earth elements, and negative anomalies of Eu. Their Isr values are between 0.704 4 and 0.707 5 and the εNd(t) are between -1.19 and 4.30, respectively, indicating that the magma source was derived from the deeper asthenosphere mantle and some components were derived from the lithosphere mantle. The (Rb/Sr)N and (Rb/Yb)N ratios of acid end-member rhyolite (dacite) are all higher than the initial mantle values. However, the (Ba/Nb)N ratios are all less than the initial mantle values and the (La/Nb)N ratios are both high and low. They are characterized by the high ∑REE, enrichment in light rare earth elements, and obvious anomalies of Eu. Their Isr values are between 0.701 2 and 0.705 3 and the εNd(t) are between -5.40 and -1.95, respectively, indicating that the magma source is the crust-mantle misciblemagma, which is mainly composed of the crust-derived materials with involvement of the mantle-derived components. The Early Jurassic bimodal volcanic rocks in Southwest Fujian were formed in the intraplate with a special tectonic position near the continental margin. They were influenced by the effect of low angle subduction of paleo-Pacific plate-back arc extension-basaltic magma underplating.
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Key words:
- volcanic rock /
- Early Jurassic /
- Southwest Fujian /
- zircon U-Pb dating /
- Sr-Nd isotope /
- geochemistry /
- tectonic setting
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图 1 华南陆块和邻区构造单元划分示意图(a、b)和华南中-新生代盆地地质简图(c)
图a、b底图据Wang et al.(2013)修改，图c底图据舒良树等(2004).SCB.华南陆块；YC.扬子地块；Cathaysia.华夏地块；QDOB.秦岭-大别造山带；NCB.华北板块；IC.印支板块；SI.Sibumasu板块；SG.松潘-甘孜地体；WB.缅甸西部；HI.喜马拉雅；LS.拉萨地体；QT.羌塘地体；①江南中生代北界隐伏断裂；②绍兴-江山-萍乡断裂带；③赣江断裂带；④政和-大埔断裂带；⑤长乐-南澳断裂带；⑥台湾纵谷带；⑦郯庐断裂带
Fig. 1. Schematic diagram of South China block, neighborhood tectonic unit division (a, b) and basin geological sketch in Mesozoic and Cenozoic in South China (c)
图 2 火山岩样品野外照片及显微照片
a.样品WH7(+)，斑晶与基质，石英斑晶；b.样品WH7(+)，杏仁构造；c.样品WH7(+)，流纹构造；d.样品TB7，野外观察到斑状结构、长石斑晶；e.样品TB7(+)，斑晶与基质，石英斑晶、长石斑晶，长石表面绢云母化；f.样品TB7(+)，石英斑晶港湾状溶蚀；g.样品WH9(+)，斑状结构，可见长石斑晶；h.样品WH9(+)，斑晶与基质，间粒结构；i.样品WH9(+)，辉石斑晶和斜长石斑晶
Fig. 2. The field and microscope photos of volcanic rocks samples
图 3 典型锆石CL图像
图中红色圆圈内为相应样品分析点，靠近锆石处的值为测试点号及其年龄
Fig. 3. CL images of the zircons and analyzed points
图 4 锆石谐和曲线及年龄分布
Fig. 4. U-Pb concordia plots for detrital zircons from the Middle Triassic sandstone
图 5 火山岩TAS图(a)，Zr/TiO2-SiO2图解(b)和火山岩硅-钾图解(c)
图a据Middlemost(1994); 图b据Winchester and Floyd(1977)；图c据Morrison(1980)属于大陆区火山岩.
Fig. 5. The TAS diagram of volcanic rocks (a), diagram of Zr/TiO2-SiO2 (b) and the silicon-potassium diagram of volcanic rocks (c)
图 6 火山岩原始地幔标准化的微量元素蛛网图(a)和火山岩球粒陨石标准化REE配分型式(b)
图a原始地幔标准化数据引自Sun and McDonough(1989); 图b球粒陨石数据引自Sun and McDonough(1989)，OIB值和N-MORB值数据引自Sun and McDonough(1989)
Fig. 6. The primitive mantle normalized trace elements spider diagram (a) and the chondrite-normalized REE distribution pattern (b)
图 7 εNd(t)-(87Sr/86Sr)i关系
华南下地壳数据来自Chen and Jahn(1999); 地幔端元投影区域引自Zindler and Hart(1986)
Fig. 7. εNd(t)-(87Sr/86Sr)i diagram of the Eocene volcanic rocks in the Liaohe segment of the Tan-Lu fault zone
图 8 Ti/100-Zr-Y×3图解(a)，Nb×2-Zr/4-Y图解(b)，Zr/Y-Zr图解(c)
图a底图据Pearce and Caan(1973); 图b底图据Meschede(1986); 图c底图据Pearce and Norry(1979).图a中，A.岛弧拉斑玄武岩；B.洋中脊玄武岩；C.钙碱性玄武岩.图b中，AI+AII.板内碱性玄武岩；AII+C.板内拉斑玄武岩；B.E型洋中脊玄武岩；D.正常洋中脊玄武岩；C+D.火山弧玄武岩.图c中，A.板内玄武岩；B.岛弧玄武岩；C.大洋中脊玄武岩
Fig. 8. Diagram of Ti/100-Zr-Y×3 (a), Nb×2-Zr/4-Y(b) and Zr/Y-Zr (c)
图 9 火山岩Y-Nb(a)和(Y+Nb)-Rb(b)、Hf-Rb/10-Ta×3(c)和Hf-Rb/30-Ta×3(d)判别图解
图a, b底图据Pearce et al.(1984)；图c, d底图据Harris et al.(1986)
Fig. 9. The Y-Nb (a) and (Y+Nb)-Rb (b) discrimination diagrams of the volcanic rocks, the Hf-Rb/10-Ta×3 (c) and the Hf-Rb/30-Ta×3 (d) discrimination diagrams
表 1 藩坑组火山岩常量元素(%)、微量、稀土元素(10-6)含量和元素比值
Table 1. The contents of constant (%), trace elements and rare earth elements (10-6) and the element ratios of volcanic rocks of Fankeng Formation
样品号 TB1 TB5 TB7 TB13 TB15 TB18 WH7 WH8 WH9 WH10 WH11 WH13 SiO2 74.40 47.10 70.56 45.10 44.15 47.86 72.12 73.16 45.01 46.29 46.48 46.84 Al2O3 13.66 18.71 16.95 22.67 23.94 21.10 12.47 12.17 13.67 15.6 15.31 15.13 TFe2O3 4.53 21.41 4.03 15.31 14.56 14.35 5.74 5.27 15.3 12.02 12.48 12.42 FeO 0.49 1.26 0.42 1.00 0.92 2.98 1.81 2.85 9.2 7.79 9.35 9.93 MgO 0.24 0.55 0.24 1.36 1.48 3.40 0.14 0.15 5.14 6.28 6.98 6.84 CaO 0.11 0.47 0.12 0.97 0.78 0.80 0.17 0.16 9.85 9.76 9.42 8.90 Na2O 0.31 1.18 0.34 1.00 0.92 1.29 2.70 2.89 3.19 3.01 2.89 2.94 K2O 3.55 2.52 4.23 4.21 4.64 1.71 3.68 3.18 0.21 0.71 0.72 0.83 MnO 0.16 0.07 0.02 0.13 0.17 0.10 0.10 0.11 0.25 0.19 0.19 0.19 TiO2 0.42 3.65 0.28 4.48 4.40 2.96 0.34 0.35 3.39 2.21 2.19 2.18 P2O5 0.05 0.07 0.05 0.46 0.32 0.46 0.04 0.04 0.36 0.18 0.22 0.21 LOI 2.52 4.26 3.15 4.29 4.63 5.94 2.50 1.98 3.60 3.68 3.04 3.50 σ 0.47 3.34 0.76 12.93 26.88 1.85 1.40 1.22 5.75 4.21 3.74 3.70 Mg# 10.80 5.61 12.00 17.20 19.20 35.60 5.45 6.34 43.90 54.90 56.60 56.20 Li 8.31 27.40 4.58 57.50 63.10 107.00 10.60 10.40 47.20 64.50 58.10 57.10 Be 3.81 6.38 5.61 5.11 5.72 3.24 3.23 3.34 1.27 0.70 0.62 0.80 Sc 10.10 27.30 4.45 33.50 34.60 22.30 8.31 8.65 38.70 35.80 38.00 36.80 V 7.94 387.00 11.80 350.00 376.00 200.00 5.14 4.85 504.00 359.00 367.00 355.00 Cr 13.1 36.7 13.1 127.0 112.0 32.0 17.9 11.7 75.5 157.0 166.0 159.0 Co 20.80 43.20 1.09 26.70 28.40 44.80 1.51 1.58 49.60 48.60 57.00 52.90 Ni 7.48 38.00 9.77 19.50 24.40 42.60 3.34 2.43 40.70 73.60 94.00 89.90 Cu 14.90 42.80 5.56 19.10 20.40 76.30 8.37 6.46 250.00 139.00 157.00 147.00 Zn 45.5 94.3 44.9 130.0 155.0 246.0 184.0 241.0 160.0 101.0 116.0 110.0 Ga 24.0 31.3 33.3 35.2 39.7 30.2 30.7 30.9 25.1 20.1 22.4 21.2 Rb 173.00 130.00 174.00 208.00 246.00 82.40 140.00 119.00 5.09 24.40 36.50 42.40 Sr 45.1 300.0 87.7 251.0 209.0 534.0 110.0 106.0 265.0 803.0 824.0 899.0 Y 38.1 42.9 74.9 48.1 50.2 69.3 93.9 84.3 51.9 28.9 27.4 26.3 Mo 2.13 0.60 1.69 0.50 0.52 0.26 4.34 2.22 1.21 1.52 1.09 0.74 Cd 0.03 0.06 0.01 0.20 0.23 0.23 0.22 0.61 0.15 0.12 0.11 0.05 In 0.10 0.11 0.07 0.08 0.11 0.10 0.18 0.17 0.10 0.07 0.07 0.08 Sb 0.16 0.26 0.29 0.14 0.14 0.36 1.75 1.45 0.24 0.12 0.32 0.29 Cs 5.31 9.68 6.58 11.60 11.70 7.06 4.47 4.49 0.83 3.30 6.13 4.92 Ba 986.0 618.0 475.0 1 353.0 1 444.0 305.0 973.0 811.0 94.8 210.0 957.0 1 091.0 W 1.75 0.07 2.95 0.25 0.23 0.09 2.63 2.31 0.18 0.21 0.20 0.20 Tl 1.18 0.93 1.39 1.27 1.50 0.65 0.79 0.66 0.06 0.21 0.46 0.56 Pb 22.40 21.50 19.60 12.00 12.30 14.90 55.70 44.30 2.47 1.28 1.46 1.56 Bi 0.30 0.10 0.01 0.05 0.05 0.05 0.08 0.37 0.02 0.12 0.04 0.05 Th 26.30 5.74 31.80 6.68 6.61 8.67 16.90 16.80 1.26 0.66 0.73 0.73 U 5.49 1.84 4.39 2.10 2.07 1.86 4.24 3.79 0.39 0.18 0.21 0.22 Nb 45.40 6.03 79.40 13.30 12.30 11.90 53.80 59.30 14.70 9.67 10.80 10.70 Ta 3.66 0.21 5.66 0.91 0.83 0.39 3.75 3.80 1.02 0.62 0.70 0.70 Zr 441 364 582 441 442 374 691 654 233 132 154 153 Hf 12.70 9.89 17.70 11.70 12.10 10.20 18.30 19.70 6.33 3.62 4.17 4.22 (Rb/Sr)N 127.00 14.40 65.90 27.50 39.10 5.13 42.30 37.30 0.64 1.01 1.47 1.57 (Ba/Nb)N 2.22 10.50 0.61 10.40 12.00 2.61 1.85 1.40 0.66 2.22 9.04 10.40 (La/Nb)N 0.59 7.26 1.48 4.89 4.13 6.58 1.12 1.23 1.41 1.18 1.12 1.10 (Rb/Yb)N 37.73 24.98 17.08 42.38 46.58 12.59 12.62 10.49 1.04 8.46 11.91 13.89 La 25.8 42.2 113.0 62.7 48.9 75.4 57.9 70.2 20.0 11.0 11.7 11.3 Ce 113.0 83.1 170.0 109.0 103.0 161.0 118.0 145.0 42.5 23.5 28.5 27.5 Pr 6.19 11.20 24.70 15.70 13.80 19.30 15.40 18.60 7.06 4.05 4.45 4.39 Nd 24.2 48.8 92.0 66.2 61.9 80.8 64.7 75.3 35.1 20.0 21.9 21.2 Sm 5.27 10.80 16.50 13.10 13.80 16.40 15.00 16.00 8.67 5.26 5.45 5.57 Eu 1.54 4.03 1.46 4.06 4.05 4.93 3.57 3.63 2.86 1.88 1.90 1.80 Gd 5.41 9.43 13.70 11.20 11.60 14.20 13.20 13.80 7.97 4.54 4.96 4.80 Tb 1.07 1.73 2.54 2.02 2.20 2.61 2.83 2.81 1.60 0.97 1.04 0.96 Dy 6.26 8.90 13.80 10.30 11.30 13.30 15.90 15.20 8.68 5.24 5.29 5.16 Ho 1.24 1.64 2.74 1.89 2.03 2.52 3.21 3.07 1.72 1.01 1.03 1.04 Er 3.49 4.34 7.67 4.74 4.98 6.35 8.68 8.42 4.34 2.53 2.61 2.61 Tm 0.58 0.68 1.24 0.66 0.70 0.89 1.35 1.42 0.62 0.39 0.40 0.41 Yb 3.56 4.04 7.91 3.81 4.10 5.08 8.61 8.81 3.80 2.24 2.38 2.37 Lu 0.500 0.560 1.130 0.540 0.550 0.690 1.260 1.260 0.540 0.326 0.341 0.350 ∑REE 198.11 231.45 468.39 305.92 282.91 403.47 329.61 383.52 145.46 82.94 91.95 89.46 ∑HREE 16.70 21.89 37.03 23.96 25.86 31.44 41.84 40.99 21.30 12.71 13.09 12.90 LREE/HREE 10.86 9.57 11.65 11.77 9.94 11.83 6.88 8.36 5.83 5.53 6.02 5.93 (La/Yb)n 5.20 7.49 10.25 11.80 8.56 10.65 4.82 5.72 3.78 3.52 3.53 3.42 (Ce/Yb)n 8.82 5.71 5.97 7.95 6.98 8.80 3.81 4.57 3.11 2.91 3.33 3.22 (La/Sm)n 3.16 2.52 4.42 3.09 2.29 2.97 2.49 2.83 1.49 1.35 1.39 1.31 (Gd/Yb)n 1.26 1.93 1.43 2.43 2.34 2.31 1.27 1.30 1.74 1.68 1.72 1.68 δEu 0.88 1.22 0.30 1.02 0.98 0.99 0.78 0.75 1.05 1.18 1.12 1.06 δCe 2.19 0.94 0.79 0.85 0.97 1.03 0.97 0.98 0.88 0.86 0.97 0.96 注：样品由核工业北京地质研究院分析测试研究中心完成.常量元素用X射线荧光光谱仪测定；微量稀土元素用ICP-MS质谱仪测定，下标N为原始地幔数值；δEu=Eun/[(Smn)(Gdn)]1/2、δCe=Cen/[(Lan)(Prn)]1/2(Sun and McDnough, 1989)，下标n为球粒陨石标准化值.TFe2O3表示该数据为全铁，Mg#=Mg2+/(Mg2++Fe3++Fe2+). 
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表 2 Sr-Nd同位素组成
Table 2. Sr-Nd isotopic compositions
样品号 TB1 TB7 WH7 TB5 TB13 WH11 WH13 岩性 流纹岩 英安岩 流纹岩 玄武岩 碱玄岩 玄武岩 玄武岩 Rb(10-6) 173.0 174.0 140.0 130.0 208.0 36.5 42.4 Sr(10-6) 45.1 87.7 110.0 300.0 251.0 824.0 899.0 87Rb/86Sr 11.070 5 5.725 9 3.673 1 1.250 6 2.391 6 0.127 8 0.136 1 87Sr/86Sr 0.730 2 0.719 0 0.714 9 0.708 9 0.711 1 0.707 5 0.707 9 err 0.000 007 0.000 006 0.000 006 0.000 009 0.000 007 0.000 006 0.000 007 Isr 0.701 2 0.704 1 0.705 3 0.705 5 0.704 4 0.707 1 0.707 5 Sm(10-6) 5.27 16.50 98.04 10.80 13.10 35.62 36.41 Nd(10-6) 24.20 92.00 138.54 48.80 66.20 46.90 45.40 147Sm/144Nd 0.131 8 0.108 5 0.428 1 0.133 9 0.119 7 0.459 5 0.485 2 143Nd/144Nd 0.512 4 0.512 4 0.512 6 0.512 7 0.512 8 0.513 0 0.512 9 err 0.000 006 0.000 005 0.000 006 0.000 005 0.000 007 0.000 005 0.000 004 T(Ma) 184 184 184 189 195 189 189 εNd(0) -5.29 -4.02 0.04 1.93 2.38 6.14 5.77 εNd(t) -3.76 -1.95 -5.40 3.45 4.30 -0.20 -1.19 fSm/Nd -0.33 -0.45 1.18 -0.32 -0.39 1.34 1.47 TDM1 1 454 1 040 -364 789 633 -123 -122 TDM2 1 272 1 125 1 414 690 625 991 1 072
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表 3 闽西南地区永定地区藩坑组锆石LA-ICP-MS定年数据
Table 3. Zircon LA-ICP-MS dating of the Fankeng Formation in the Yongding area of Southwest Fujian
样品点 Th(10-6) U(10-6) Th/U 同位素比值 年龄(Ma) 207Pb/206Pb 1δ 207Pb/235U 1δ 206Pb/238U 1δ 207P/235U 1δ 206Pb/238U 1δ TB5 TB5-1 264 405 0.65 0.047 57 0.001 62 0.203 96 0.007 28 0.031 09 0.000 76 1 88 6 197 5 TB5-2 199 177 1.13 0.048 41 0.003 91 0.188 98 0.015 11 0.028 31 0.000 82 176 13 180 5 TB5-3 447 558 0.80 0.048 91 0.002 29 0.199 00 0.009 44 0.029 51 0.000 75 184 8 187 5 TB5-4 642 521 1.23 0.049 38 0.002 37 0.185 40 0.009 03 0.027 23 0.000 69 173 8 173 4 TB5-5 89 153 0.58 0.054 73 0.003 89 0.229 56 0.016 18 0.030 42 0.000 86 210 13 193 5 TB5-6 524 560 0.94 0.051 25 0.001 88 0.204 09 0.007 73 0.028 88 0.000 70 189 7 184 4 TB5-7 70 159 0.44 0.050 39 0.002 80 0.212 30 0.011 81 0.030 56 0.000 79 195 10 194 5 TB5-8 172 229 0.75 0.048 75 0.002 28 0.209 38 0.009 93 0.031 15 0.000 78 193 8 198 5 TB5-9 537 1 018 0.53 0.053 67 0.001 76 0.225 02 0.007 72 0.030 41 0.000 73 206 6 193 5 TB5-10 71.0 130 0.55 0.053 05 0.003 36 0.226 31 0.014 27 0.030 95 0.000 83 207 12 196 5 TB5-11 233 281 0.83 0.050 96 0.002 12 0.214 10 0.009 07 0.030 48 0.000 74 197 8 194 5 TB13 TB13-1 229 425 0.54 0.049 22 0.002 57 0.201 17 0.010 60 0.029 65 0.000 77 186 9 188 5 TB13-2 3 008 2189 1.37 0.050 07 0.001 27 0.208 05 0.005 88 0.030 14 0.000 73 192 5 191 5 TB13-3 254 364 0.70 0.052 88 0.002 46 0.220 31 0.010 45 0.030 22 0.000 78 202 9 192 5 TB13-4 2 360 1 191 1.98 0.052 30 0.001 80 0.219 02 0.007 93 0.030 37 0.000 75 201 7 193 5 TB13-5 295 385 0.77 0.054 04 0.002 05 0.227 60 0.008 96 0.030 55 0.000 76 208 7 194 5 TB13-6 375 492 0.76 0.051 19 0.002 45 0.216 39 0.010 52 0.030 66 0.000 79 199 9 195 5 TB13-7 5 054 2 303 2.19 0.052 24 0.001 37 0.222 18 0.006 43 0.030 85 0.000 75 204 5 196 5 TB13-8 3 926 1 916 2.05 0.048 94 0.001 36 0.206 96 0.006 28 0.030 67 0.000 74 191 5 195 5 TB13-9 578 540 1.07 0.050 97 0.001 64 0.219 94 0.007 51 0.031 30 0.000 77 202 6 199 5 TB13-10 282 431 0.65 0.050 46 0.002 35 0.212 59 0.010 08 0.030 56 0.000 78 196 8 194 5 TB13-11 16 097 5 606 2.87 0.050 20 0.001 16 0.213 55 0.005 60 0.030 85 0.000 74 197 5 196 5 TB13-12 2 941 1 111 2.65 0.051 43 0.001 78 0.222 11 0.008 09 0.031 32 0.000 78 204 7 199 5 TB13-13 7 799 3 827 2.04 0.050 29 0.001 26 0.216 24 0.006 02 0.031 19 0.000 75 199 5 198 5 TB13-14 479 506 0.95 0.049 61 0.001 58 0.210 99 0.007 14 0.030 85 0.000 76 194 6 196 5 TB13-15 10 682 5 014 2.13 0.051 89 0.001 18 0.222 01 0.005 75 0.031 03 0.000 75 204 5 197 5 TB13-16 243 285 0.85 0.050 20 0.001 88 0.213 55 0.008 32 0.030 85 0.000 77 197 7 196 5 TB13-17 7 173 2 943 2.44 0.049 92 0.001 24 0.214 46 0.005 95 0.031 16 0.000 75 197 5 198 5 TB13-18 216 313 0.69 0.052 33 0.002 31 0.222 25 0.010 02 0.030 80 0.000 79 204 8 196 5 TB13-19 8 448 3 013 2.80 0.049 32 0.001 31 0.207 61 0.006 07 0.03053 0.000 74 192 5 194 5 TB13-20 221 267 0.83 0.048 95 0.002 72 0.206 21 0.011 54 0.030 55 0.000 81 190 10 194 5 TB13-21 343 377 0.91 0.051 80 0.002 61 0.211 78 0.010 78 0.029 65 0.000 78 195 9 188 5 TB13-22 386 437 0.88 0.052 89 0.002 48 0.216 92 0.010 34 0.029 75 0.000 77 199 9 189 5 TB13-23 248 416 0.60 0.048 28 0.001 98 0.205 10 0.008 67 0.030 81 0.000 78 189 7 196 5 TB13-24 363 364 0.99 0.049 19 0.001 72 0.210 31 0.007 72 0.031 01 0.000 77 194 6 197 5 TB13-25 15 455 5 714 2.70 0.049 26 0.001 09 0.206 76 0.005 27 0.030 44 0.000 73 191 4 193 5 TB13-26 15 728 5 168 3.04 0.048 98 0.001 16 0.206 21 0.005 53 0.030 53 0.000 74 190 5 194 5 WH7 WH7-1 112 169 0.66 0.049 64 0.004 40 0.193 45 0.016 91 0.028 26 0.000 85 180 14 180 5 WH7-2 98 149 0.66 0.049 77 0.003 24 0.201 13 0.013 04 0.029 30 0.000 79 186 11 186 5 WH7-3 103 155 0.67 0.050 11 0.003 21 0.199 23 0.012 75 0.028 83 0.000 76 184 11 183 5 WH7-4 86 135 0.63 0.049 65 0.003 69 0.197 67 0.014 60 0.028 87 0.000 80 183 12 183 5 WH7-5 1 259 1 627 0.77 0.050 05 0.001 33 0.203 80 0.005 88 0.029 53 0.000 69 188 5 188 4 WH7-6 245 279 0.88 0.049 99 0.003 02 0.196 30 0.011 83 0.028 48 0.000 75 182 10 181 5 WH7-7 3 027 3 318 0.91 0.050 99 0.001 34 0.203 15 0.005 79 0.028 89 0.000 68 188 5 184 4 WH7-8 643 425 1.51 0.049 42 0.003 41 0.191 57 0.013 13 0.028 11 0.000 77 178 11 179 5 WH7-9 1 505 1 679 0.90 0.050 50 0.001 34 0.207 55 0.005 96 0.029 80 0.000 70 191 5 189 4 WH7-10 517 504 1.03 0.054 80 0.002 74 0.213 37 0.010 73 0.028 23 0.000 72 196 9 179 5 WH7-11 49 99 0.50 0.053 25 0.005 11 0.207 92 0.019 64 0.028 32 0.00089 192 17 180 6 WH7-12 239 312 0.77 0.048 76 0.002 08 0.196 78 0.008 54 0.029 27 0.000 72 182 7 186 5 WH7-13 86 138 0.62 0.050 47 0.003 07 0.201 01 0.012 21 0.028 88 0.000 75 186 10 184 5 WH7-14 90 171 0.53 0.053 27 0.002 88 0.205 42 0.011 12 0.027 97 0.000 72 190 9 178 5 WH7-15 1 593 1 495 1.07 0.049 68 0.001 53 0.198 44 0.006 41 0.028 97 0.000 68 184 5 184 4 WH7-16 165 232 0.71 0.055 07 0.004 00 0.217 47 0.015 61 0.028 63 0.000 81 200 13 182 5 WH7-17 1 204 1 519 0.79 0.050 62 0.001 32 0.207 11 0.005 82 0.029 67 0.000 69 191 5 188 4 WH7-18 92 146 0.63 0.051 44 0.003 69 0.204 98 0.014 56 0.028 90 0.000 80 189 12 184 5 WH7-19 81 132 0.61 0.051 26 0.003 21 0.206 29 0.012 86 0.029 18 0.000 77 190 11 185 5
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