Zircon U-Pb Chronology, Geochemistry, and Their Tectonic Setting of Granitic Rocks from Northern Daocheng Batholith in West Sichuan
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摘要: 川西稻城岩体北部花岗岩成因和成岩构造环境争议较大.本次工作选择该岩基北部花岗岩为研究对象，进行了岩石学、锆石U-Pb年代学、地球化学和Hf同位素研究.LA-ICP-MS锆石U-Pb测年结果显示，岩体北部花岗岩形成时代213~212 Ma，略晚于南部.岩性以花岗闪长岩和二长花岗岩为主，前者含较多暗色微粒包体（mafic microgranular enclaves，MME）.代表性样品地球化学上具有富钠、偏铝-弱过铝质、富大离子亲石元素的特征.εHf（t）值非常分散，介于-16.6~-2.4（均值-5.0），对应的t2DM为2.04~1.25 Ga（均值1.4）.结合区域地质证据分析，稻城岩体为I型花岗岩，其源区以中元古代康定群变质玄武岩为主，酸性端元含较多变质杂砂岩.花岗岩的形成与后造山环境下俯冲板片断离导致的软流圈上涌、中下地壳受烘烤部分熔融关系密切.Abstract: The genesis and tectonic setting of granitoids in the northern part of Daocheng batholith in West Sichuan are still debated. In this paper, a compilation of petrology, zircon U-Pb chronology, geochemistry and Hf isotopes was conducted on the granitoid to solve this uncertainty. LA-ICP-MS zircon U-Pb dating result shows that granitoids in the northern part of the batholith were formed at 213-212 Ma, slightly later than those in the southern part. Granitoids researched are mainly composed of granodiorite and monzogranite, the former of which contains many MME (mafic microgranular enclaves). Accessory minerals contain apatite, epidote, zircon and opaque minerals. Enrichment in sodium, and large ion lithophile elements, metaluminous to weak peraluminous are typical geochemical characteristics of the representative granitic samples. Their εHf(t) values are very scattered, ranging from -16.6 to 2.4 (average -5.0), reflecting average crustal residence age (t2DM) of 2.04-1.25 Ga (average 1.4) of the granitic source. Combined with regional geological evidence, the granitoids are I-type garanites derived from partial melting of basement metabasalt from the Mesoproterozoic Kangding complex, part of metagreywacks maybe involved in the acid member. Upwelling of asthenosphere and partial melting of the middle and lower crusts triggered by slab detachment under post-orogenic extension environment are responsible for the formation of granitoids.
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Key words:
- tectonic setting /
- granitoid /
- paleo-tethys /
- Triassic /
- Daocheng /
- West Sichuan /
- petrology
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图 1 研究区区域地质简图(a)和地质图(b)
1.古生界；2.三叠系；3.晚三叠世岛弧火山（沉积）岩；4.第四系；5.缝合带；6.后三叠纪花岗岩；7.三叠纪后花岗岩；8.玄武岩；9.海相流纹岩；10.取样点及编号. T3lm.喇嘛哑组；T3t.图姆沟组；JS.金沙江缝合带；GLS.甘孜-理塘缝合带；XGF.乡城-格咱断裂；CJM.措交玛；AJSD.阿吉森多；SCM.苏措玛；JDC.甲多措；HZS.稻城（海子山）；DC.冬措；MXG.马雄沟；YJ.乡城-格咱断裂；年代数据据Reid et al.（2007）；Weislogel（2008）；He et al.（2013）；Peng et al.（2014）；Wu et al.（2017）；秦蒙等（2019）及本文.图a据Wang et al.（2013）修改
Fig. 1. Simplified regional geological map (a) and geological map (b) of research area
图 2 稻城岩体北部不同岩性样品野外、镜下照片
a.粗中粒花岗闪长岩露头及其中MME；b.中粒花岗闪长岩露头及其中MME；c.细粒花岗闪长岩镜下照片（+）；d.MME中捕获石英斑晶（+）；e.MME中针状磷灰石（+）；f.中细粒二长花岗岩露头；g.中细粒二长花岗岩镜下照片（+）；g.中细粒二长花岗岩中的褐帘石（+）.Pl.斜长石；Kfs.正长石；Qtz.石英；Hb.角闪石；Bt.黑云母；Ap.磷灰石；Aln.褐帘石
Fig. 2. Photographs and micrographs under microscope of different samples from northern Daocheng batholith
图 3 稻城岩体北部不同岩性样品锆石LA-ICP-MS U-Pb年龄谐和图及代表性锆石阴极发光照片
束斑大小32 μm
Fig. 3. LA-ICP-MS U-Pb zircon concordia age plots and cathodoluminescence (CL) images of different granitic samples from northern Daocheng batholith
图 4 稻城岩体北部不同岩性样品SiO2-K2O图(a)和A/CNK-A/NK图(b)
1.花岗闪长岩；2.MME；3.中细粒二长花岗岩；4.措交玛；5.阿吉松多；6.苏措玛；7.甲多措；8.稻城南部；9.马雄沟；10.冬措；11.勇杰；4~10数据引自Wu et al.（2017）
Fig. 4. SiO2-K2O (a) and A/CNK-A/NK (b) diagrams of different granitic samples from northern Daocheng batholith
图 5 稻城岩体北部不同岩性样品微量元素蜘网图解(a)和稀土元素配分图解(b)
原始地幔和球粒陨石标准值据Sun and McDonough（1989）；1.中细粒二长花岗岩；2.粗中粒花岗闪长岩；3.花岗闪长岩中MME包体
Fig. 5. Primitive mantle-normalized spider diagram(a) and chondrite-normalized REE patterns(b) of different granitic samples from northern Daocheng batholith
图 6 稻城岩体北部不同岩性样品εHf(t)-t图解
1.花岗闪长岩；2.二长花岗岩；3.图姆沟火山岩；4.阿吉松多；5.松措玛；6.甲多措；7.稻城南部；8.康定杂岩.图姆沟组火山岩数据来自Leng et al.（2012，2014），措交玛花岗岩带数据来自Wu et al.（2017），康定杂岩数据来自Zhao et al.（2008）；底图据Wu et al.（2017）
Fig. 6. Histograms of εHf(t) and Hf modal ages of zircons from granitic rocks of northern Daocheng batholith
图 7 稻城岩体北部不同岩性样品Rb-P2O5(a)和Rb-Th(b)图解
图例同图 4；底图据Chappell and White（1992）
Fig. 7. Rb-P2O5(a)和Rb-Th(b) diagrams of different granitic samples from northern Daocheng batholith
图 8 稻城岩体北部不同岩性样品C/MF-A/MF(a)和(Na2O+K2O)/FeO+MgO+TiO2)-(Na2O+K2O+FeO+MgO +TiO2)(b)图解
图例同图 4；底图据Altherr et al.（2000）
Fig. 8. C/MF-A/MF(a) and (Na2O+K2O)/FeO+MgO+TiO2)-(Na2O+K2O+FeO+MgO+TiO2) (b) diagram of different granitic samples from northern Daocheng batholith
表 1 稻城岩体北部不同岩性样品锆石U-Th-Pb同位素分析结果
Table 1. U-Th-Pb isotopic result of zircons from different granitic samples from northern Daocheng batholith
序号 Pb*(10-6) Th(10-6) U(10-6) Th/U 207Pb/206Pb比值 1σ 207Pb/235U比值 1σ 206Pb/238U比值 1σ 207Pb/235U年龄(Ma) 1σ 206Pb/238U年龄(Ma) 1σ 粗中粒花岗闪长岩(D303-1)(坐标99°53′13″E，30°13′19″N) 1 11.17 145 318 0.46 0.051 8 9 0.239 0 51 0.033 5 5 218 4 212 3 2 26.60 379 683 0.55 0.050 5 6 0.233 8 39 0.033 5 4 213 3 213 3 4 17.52 198 490 0.40 0.052 0 8 0.239 4 7 0.033 4 5 218 4 212 3 5 17.32 353 447 0.79 0.050 1 8 0.230 9 39 0.033 4 4 211 3 212 2 6 31.19 457 810 0.56 0.051 4 7 0.240 2 48 0.033 9 7 219 4 215 4 7 18.12 250 460 0.54 0.051 0 8 0.236 8 49 0.033 6 4 216 4 213 3 9 28.27 307 775 0.40 0.051 6 6 0.238 3 37 0.033 5 5 217 3 213 3 10 20.02 257 516 0.50 0.049 9 7 0.231 9 41 0.033 6 4 212 3 213 2 11 16.30 230 431 0.53 0.049 8 9 0.229 3 50 0.033 4 5 210 4 212 3 12 17.66 286 438 0.65 0.050 7 7 0.234 4 34 0.033 5 3 214 3 213 2 13 13.49 198 336 0.59 0.051 0 8 0.236 1 45 0.033 5 5 215 4 213 3 14 24.70 253 671 0.38 0.050 6 7 0.233 0 39 0.033 4 4 213 3 212 3 15 10.16 95 280 0.34 0.049 9 9 0.230 5 46 0.033 5 5 211 4 213 3 16 34.11 486 866 0.56 0.051 1 7 0.236 5 38 0.033 5 4 216 3 212 2 17 15.02 166 395 0.42 0.048 8 9 0.226 4 45 0.033 7 5 207 4 213 3 18 23.34 452 621 0.73 0.051 0 7 0.236 2 48 0.033 4 5 215 4 212 3 19 12.71 160 363 0.44 0.050 0 8 0.230 6 45 0.033 5 5 211 4 212 3 20 16.05 204 409 0.50 0.052 2 8 0.243 5 53 0.033 6 4 221 4 213 3 21 12.89 144 356 0.40 0.049 4 7 0.229 1 43 0.033 6 4 209 4 213 3 23 13.52 169 351 0.48 0.050 7 7 0.234 2 37 0.033 5 4 214 3 212 2 24 16.25 204 454 0.45 0.049 9 7 0.230 5 37 0.033 4 4 211 3 212 2 25 27.64 284 729 0.39 0.050 2 5 0.232 5 34 0.033 5 4 212 3 213 3 粗中粒二长花岗岩(D304-1)(坐标100°00′07″E，30°09′52″N) 2 47.94 626 1 218 0.51 0.052 9 6 0.244 4 42 0.033 5 5 222 3 212 3 3 13.62 154 359 0.43 0.049 5 7 0.229 2 46 0.033 5 5 210 4 212 3 4 17.86 265 476 0.56 0.051 7 7 0.239 5 45 0.033 5 4 218 4 212 3 5 18.86 191 502 0.38 0.050 0 8 0.231 8 45 0.033 6 6 212 4 213 3 6 45.08 554 1 239 0.45 0.051 2 6 0.237 7 41 0.033 6 5 217 3 213 3 7 37.38 558 979 0.57 0.050 6 6 0.234 1 39 0.033 5 5 214 3 212 3 9 26.82 430 692 0.62 0.050 7 7 0.234 9 39 0.033 5 5 214 3 213 3 10 29.89 333 799 0.42 0.049 7 5 0.230 0 35 0.033 5 4 210 3 212 3 11 23.20 270 613 0.44 0.051 3 7 0.237 0 44 0.033 4 4 216 4 212 3 13 20.60 233 579 0.40 0.051 1 7 0.236 5 44 0.033 5 4 216 4 212 3 14 9.62 146 250 0.58 0.049 5 11 0.228 8 49 0.033 6 5 209 4 213 3 15 28.18 457 704 0.65 0.050 6 7 0.234 0 44 0.033 4 4 213 4 212 3 16 30.71 492 762 0.65 0.051 7 7 0.239 3 43 0.033 5 4 218 4 212 3 17 10.27 105 277 0.38 0.050 3 12 0.232 5 62 0.033 5 6 212 5 212 4 19 29.01 312 766 0.41 0.050 3 7 0.231 7 38 0.033 4 5 212 3 212 3 20 10.67 130 276 0.47 0.050 2 8 0.232 4 43 0.033 6 4 212 4 213 3 22 21.34 286 544 0.53 0.051 1 6 0.235 2 39 0.033 4 4 214 3 212 3 23 14.19 114 379 0.30 0.051 9 9 0.240 8 54 0.033 6 5 219 4 213 3 24 28.17 369 784 0.47 0.050 1 9 0.231 0 54 0.033 5 6 211 4 212 4 中细粒二长花岗岩(D002-1)(坐标99°59′53″E，30°08′27″N) 1 23.48 275 600 0.46 0.050 4 6 0.230 1 41 0.033 0 4 210 3 209 2 2 19.11 319 483 0.66 0.050 4 7 0.232 4 37 0.033 4 3 212 3 212 2 3 14.67 183 394 0.46 0.048 8 8 0.227 3 52 0.033 7 5 208 4 214 3 5 10.58 136 270 0.50 0.049 2 10 0.225 5 43 0.033 3 4 206 4 211 3 6 24.55 305 631 0.48 0.050 4 6 0.230 7 36 0.033 1 4 211 3 210 2 7 9.65 105.0 264 0.40 0.049 6 13 0.236 4 65 0.033 6 7 215 5 213 4 8 18.46 224 473 0.47 0.050 9 8 0.235 3 40 0.033 5 5 215 3 213 3 9 7.29 79.3 188 0.42 0.050 5 10 0.233 6 48 0.033 6 4 213 4 213 3 10 76.98 819 2008 0.41 0.052 4 5 0.244 3 40 0.033 7 5 222 3 214 3 11 13.51 173 382 0.45 0.050 5 7 0.235 0 53 0.033 6 6 214 4 213 4 12 13.79 181 348 0.52 0.052 4 8 0.243 1 42 0.033 6 4 221 3 213 2 15 17.24 294 454 0.65 0.052 8 9 0.245 6 50 0.033 6 4 223 4 213 2 16 13.41 162 366 0.44 0.051 4 8 0.236 6 41 0.033 5 4 216 3 212 3 17 24.75 475 596 0.80 0.051 5 9 0.236 2 46 0.033 3 5 215 4 211 3 18 10.96 193 285 0.68 0.052 0 8 0.238 5 46 0.033 2 4 217 4 211 2 19 34.59 434 888 0.49 0.052 4 6 0.241 7 33 0.033 4 4 220 3 212 2 20 12.79 205 316 0.65 0.050 5 8 0.232 2 42 0.033 3 4 212 3 211 2 21 21.52 435 512 0.85 0.051 2 6 0.234 3 37 0.033 1 4 214 3 210 2 22 10.45 153 267 0.57 0.051 5 8 0.238 0 46 0.033 5 4 217 4 213 3 23 11.46 140 309 0.45 0.050 4 9 0.232 6 45 0.033 5 5 212 4 212 3 24 9.94 136 279 0.49 0.050 2 10 0.232 5 52 0.033 5 5 212 4 213 3 25 37.35 491 979 0.50 0.051 4 6 0.237 3 43 0.033 5 5 216 4 212 3 注：Pb*代表放射性成因铅. 
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表 2 稻城岩体北部不同岩性样品主量和微量元素分析结果
Table 2. Major elements and trace elements result of different granitic samples from northern Daocheng batholith
送样号 花岗闪长岩 MME 二长花岗岩 D011-1 D301-1 D302-1 D303-1 D011-3 D011-4 D001-1 D002-1 D009-1 D304-1 D305-1 SiO2(10-2) 70.58 69.27 65.10 69.56 66.80 64.40 74.53 75.09 76.26 75.31 74.66 TiO2 0.308 0.478 0.594 0.392 0.551 0.773 0.091 0.113 0.064 0.173 0.173 Al2O3 13.44 14.21 14.70 13.91 14.63 14.85 12.51 12.55 11.96 12.31 12.44 Fe2O3 0.222 0.222 0.692 0.241 0.667 0.753 0.220 0.152 0.080 0.011 0.111 FeO 4.10 4.33 5.05 4.00 5.72 6.72 2.17 2.31 2.43 2.70 1.99 MnO 0.073 0.075 0.101 0.070 0.105 0.141 0.034 0.045 0.039 0.044 0.035 MgO 0.653 1.03 2.04 0.859 0.938 1.66 0.136 0.171 0.088 0.264 0.338 CaO 2.46 3.48 4.50 3.00 3.09 3.76 0.896 1.18 0.640 1.69 1.58 K2O 3.45 2.20 2.58 3.17 1.98 1.89 4.78 4.21 4.60 3.38 4.40 Na2O 3.02 3.30 3.11 3.08 3.84 3.40 3.10 3.09 3.22 3.25 2.65 P2O5 0.070 0.093 0.115 0.076 0.154 0.168 0.018 0.022 0.012 0.032 0.034 灼失 0.201 0.188 0.408 0.230 0.932 0.740 0.384 0.284 0.272 0.117 0.514 Σ 98.58 98.88 98.99 98.59 99.41 99.26 98.87 99.22 99.67 99.28 98.93 FeOT 4.30 4.53 5.67 4.22 6.32 7.40 2.37 2.45 2.50 2.71 2.09 F/(F+M) 0.87 0.81 0.74 0.83 0.87 0.82 0.95 0.93 0.97 0.91 0.86 ALK 6.47 5.50 5.69 6.25 5.82 5.29 7.88 7.30 7.82 6.63 7.05 A/CNK 1.02 1.00 0.91 1.00 1.04 1.02 1.05 1.06 1.04 1.02 1.04 A/NK 1.54 1.82 1.86 1.64 1.73 1.94 1.22 1.30 1.16 1.37 1.36 Rb(µg/g) 110 77.3 82.0 103 141 123 184 153 215 114 127 Sr 104 144 166 116 104 91.6 20.2 39.8 8.73 58.8 56.4 Ba 522 400 424 546 290 516 223 386 89.0 835 427 Th 12.1 15.1 7.70 13.5 13.9 8.95 18.8 15.5 12.4 14.9 12.8 U 1.71 2.84 2.52 2.29 3.69 1.81 6.42 4.00 4.24 3.24 2.73 Nb 9.86 11.5 12.4 11.4 20.8 15.3 11.8 11.3 12.4 9.59 7.02 Ta 1.21 1.57 1.30 1.16 2.48 1.62 1.99 2.03 1.64 1.12 0.78 Zr 170 156 178 177 143 170 102 109 109 135 133 Hf 4.61 4.25 4.80 4.85 4.43 4.66 4.21 4.14 4.51 4.18 3.85 Y 21.1 23.7 36.4 23.5 40.6 32.6 33.9 24.0 29.0 24.1 12.6 Cr 36.8 34.2 73.0 23.5 43.1 13.2 24.8 28.4 45.0 18.8 15.8 Ni 5.42 6.32 16.8 6.10 8.95 6.20 3.22 4.07 5.93 3.45 3.11 Co 4.93 7.37 12.9 6.69 8.35 11.8 1.33 1.73 1.56 2.60 2.68 Rb/Sr 1.06 0.54 0.49 0.89 1.36 1.34 9.11 3.84 24.63 1.94 2.25 Nb/Ta 8.15 7.32 9.54 9.83 8.39 9.44 5.93 5.57 7.56 8.56 9.00 Zr/Hf 36.88 36.71 37.08 36.49 32.28 36.48 24.23 26.33 24.17 32.30 34.55 Th/U 7.08 5.32 3.06 5.90 3.77 4.94 2.93 3.88 2.92 4.60 4.69 La(µg/g) 33.8 50.7 25.2 36.8 12.7 25.2 16.9 21.6 16.6 41.4 26.8 Ce 60.8 92.3 57.4 65.7 28.3 52.5 50.6 49.8 44.4 76.8 53.0 Pr 6.56 9.74 7.73 7.38 4.1 6.09 4.16 4.94 4.08 8.05 5.46 Nd 23.0 32.2 31.3 26.6 18.1 23.8 15.4 17.9 14.7 28.1 19.0 Sm 4.34 5.01 6.78 5.20 5.37 5.64 4.07 4.01 3.78 5.31 3.50 Eu 0.79 1.09 1.15 0.90 0.67 0.76 0.30 0.44 0.18 0.62 0.60 Gd 4.17 4.98 6.13 4.97 5.48 5.49 4.24 3.77 3.82 4.98 3.23 Tb 0.66 0.71 1.07 0.79 1.12 0.97 0.87 0.69 0.80 0.77 0.46 Dy 3.88 4.13 6.71 4.75 7.45 6.08 6.10 4.56 5.61 4.57 2.65 Ho 0.8 0.89 1.41 0.96 1.57 1.26 1.33 0.94 1.26 0.96 0.53 Er 2.21 2.61 3.98 2.6 4.57 3.52 3.86 2.72 3.72 2.7 1.48 Tm 0.36 0.43 0.65 0.41 0.79 0.56 0.68 0.47 0.66 0.44 0.23 Yb 2.44 2.85 4.38 2.64 5.36 3.64 4.78 3.33 4.66 3.05 1.46 Lu 0.34 0.39 0.6 0.36 0.73 0.5 0.66 0.48 0.64 0.41 0.21 ΣREE 144.15 208.03 154.49 160.06 96.31 136.01 113.95 115.65 104.91 178.16 118.61 (La/Yb)N 9.94 12.76 4.13 10.00 1.70 4.97 2.54 4.65 2.56 9.74 13.17 δEu 0.56 0.66 0.53 0.53 0.37 0.41 0.22 0.34 0.14 0.36 0.54
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表 3 稻城岩体北部不同岩性样品锆石Hf同位素分析结果
Table 3. MC-ICP-MS Hf isotopic analysis of zircons from different granitic samples of northern Daocheng batholith
176Hf/177Hf比值 2σ(10-6) 176Lu/177Hf比值 176Yb/177Hf比值 t(Ma) εHf(t) 2σ t2DM(Ga) fLu/Hf 粗中粒花岗闪长岩(D303-1) 1 0.282 486 7 0.000 617 0.023 954 212 -5.6 0.6 1.42 -0.98 2 0.282 523 11 0.001 303 0.051 818 213 -4.3 0.6 1.35 -0.96 3 0.282 530 8 0.001 405 0.054 736 210 -4.1 0.6 1.34 -0.96 4 0.282 537 8 0.001 104 0.042 480 212 -3.8 0.6 1.33 -0.97 5 0.282 500 8 0.001 412 0.056 501 212 -5.2 0.6 1.40 -0.96 6 0.282 577 8 0.001 708 0.068 432 215 -2.4 0.6 1.25 -0.95 7 0.282 388 12 0.001 373 0.054 363 213 -9.1 0.7 1.62 -0.96 8 0.282 494 9 0.001 951 0.076 979 219 -5.3 0.6 1.42 -0.94 9 0.282 485 8 0.000 908 0.035 153 213 -5.6 0.6 1.43 -0.97 10 0.282 546 10 0.003 885 0.149 862 213 -3.8 0.6 1.33 -0.88 11 0.282 507 10 0.001 604 0.063 689 212 -4.9 0.6 1.39 -0.95 12 0.282 474 11 0.001 500 0.059 366 213 -6.1 0.6 1.46 -0.95 13 0.282 561 8 0.001 712 0.066 584 213 -3.0 0.6 1.29 -0.95 14 0.282 559 8 0.001 506 0.056 987 212 -3.1 0.6 1.29 -0.95 15 0.282 517 8 0.000 856 0.033 164 213 -4.5 0.6 1.37 -0.97 16 0.282 557 8 0.001 783 0.069 076 212 -3.2 0.6 1.29 -0.95 17 0.282 503 7 0.001 154 0.045 323 213 -5.0 0.6 1.39 -0.97 18 0.282 508 8 0.001 291 0.049 965 212 -4.9 0.6 1.39 -0.96 19 0.282 521 8 0.000 971 0.036 611 212 -4.4 0.6 1.36 -0.97 20 0.282 485 9 0.001 275 0.049 565 213 -5.7 0.6 1.43 -0.96 中细粒二长花岗岩(D002-1) 1 0.282 500 8 0.000 996 0.037 689 209 -5.2 0.6 1.40 -0.97 2 0.282 460 8 0.001 482 0.058 774 212 -6.6 0.6 1.48 -0.96 3 0.282 564 8 0.001 328 0.052 141 214 -2.8 0.6 1.276 -0.96 4 0.282 472 9 0.001 161 0.046 063 203 -6.3 0.6 1.46 -0.97 5 0.282 468 9 0.001138 0.044 043 211 -6.3 0.6 1.46 -0.97 中细粒二长花岗岩(D002-1) 6 0.282 557 8 0.001 448 0.056 974 210 -3.2 0.6 1.29 -0.96 7 0.282 502 8 0.001 251 0.049 385 213 -5.1 0.6 1.40 -0.96 8 0.282 562 10 0.001 905 0.076 482 213 -3.0 0.6 1.28 -0.94 9 0.282 494 7 0.000 829 0.031 951 213 -5.3 0.6 1.41 -0.98 10 0.282 517 9 0.002 484 0.095 912 214 -4.7 0.6 1.38 -0.93 11 0.282 531 9 0.001 184 0.046 944 213 -4.0 0.6 1.34 -0.96 12 0.282 335 10 0.001 272 0.051 647 213 -11.0 0.6 1.72 -0.96 13 0.282 561 10 0.001 698 0.065 904 241 -2.5 0.6 1.28 -0.95 14 0.282 507 8 0.001 256 0.050 827 223 -4.6 0.6 1.38 -0.96 15 0.282 551 9 0.001 906 0.077 389 213 -3.4 0.6 1.31 -0.94 16 0.282 491 8 0.001 213 0.048 164 212 -5.5 0.6 1.42 -0.96 17 0.282 512 13 0.001 488 0.059 192 211 -4.8 0.7 1.381 -0.96 18 0.282 495 9 0.001 096 0.044 464 211 -5.3 0.6 1.41 -0.97 19 0.282 556 8 0.001 744 0.069 151 212 -3.2 0.6 1.30 -0.95 20 0.282505 7 0.000 890 0.035 199 211 -4.9 0.6 1.39 -0.97 粗中粒二长花岗岩(D304-1) 1 0.282 526 8 0.001 263 0.049 546 221 -4.0 0.6 1.35 -0.96 2 0.282 496 9 0.001 567 0.062 141 212 -5.3 0.6 1.41 -0.95 3 0.282 171 7 0.000 363 0.015 558 212 -16.6 0.6 2.04 -0.99 4 0.282 318 10 0.000 985 0.037 896 212 -11.6 0.6 1.76 -0.97 5 0.282 471 7 0.000 997 0.039 120 213 -6.1 0.6 1.46 -0.97 6 0.282 529 8 0.001 365 0.054 205 213 -4.1 0.6 1.35 -0.96 7 0.282 503 9 0.001 903 0.074 723 212 -5.1 0.6 1.40 -0.94 8 0.282 497 10 0.001 468 0.055 522 216 -5.2 0.6 1.41 -0.96 9 0.282 476 11 0.002 015 0.079190 213 -6.1 0.7 1.45 -0.94 10 0.282 508 7 0.001 372 0.053510 212 -4.9 0.6 1.39 -0.96 11 0.282 530 7 0.001 189 0.044 667 212 -4.1 0.6 1.34 -0.96 12 0.282 499 10 0.002 246 0.088 169 219 -5.2 0.6 1.41 -0.93 13 0.282 507 13 0.002 003 0.080 743 212 -5.0 0.7 1.39 -0.94 14 0.282 515 8 0.001 207 0.049 080 213 -4.6 0.6 1.37 -0.96 15 0.282 521 7 0.001 573 0.062 852 212 -4.4 0.6 1.36 -0.95 16 0.282 535 9 0.001 738 0.066 873 212 -4.0 0.6 1.34 -0.95 17 0.282 523 9 0.001 452 0.056 514 212 -4.3 0.6 1.36 -0.96 18 0.282 509 10 0.001 605 0.060 664 215 -4.8 0.6 1.39 -0.95 19 0.282 483 9 0.001 149 0.043 637 212 -5.7 0.6 1.44 -0.97 20 0.282 506 10 0.001 554 0.059 575 213 -5.0 0.6 1.39 -0.95
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