Chronology, geochemistry and tectonic significance of middle stage of Late Cretaceous adakite in Zhazuo aera, Tibet
-
摘要:
为解释南冈底斯晚白垩世埃达克质岩石成因及其地球动力学机制，本文对西藏扎囊县札佐地区二长花岗岩开展了锆石U-Pb年代学、Hf同位素和全岩地球化学分析。札佐二长花岗岩锆石U-Pb定年为80.43±0.62 Ma，其SiO2为66.19%~66.84%，Al2O3为15.17%~15.48%，MgO为1.67%~1.91%，Mg#为47.4~51.5，K2O为3.86%~4.09%，A/CNK=0.91~1.01，属准铝质高钾钙碱性岩石。岩石轻稀土富集明显，高Sr（492×10−6~670.2×10−6），低Y（8.27×10−6~14.99×10−6），Yb（1.07×10−6~1.79×10−6），高Sr/Y（35.0~81.0），高La/Yb（17.4~21.4），弱负Eu异常，具埃达克岩地球化学特征。相对富集大离子亲石元素（LILE），亏损高场强元素（HFSE）和重稀土。锆石εHf（t）值为10.5~14.1，单阶段Hf模式年龄（tDM1）为184.8~326.1 Ma，平均为203.4 Ma，二阶段Hf模式年龄（tDM2）为247.2~476.0 Ma，平均为287.1 Ma，略大于侵位年龄，指示岩浆物质来源于俯冲洋壳，并可能卷入俯冲沉积物。岩石中地幔组分印记Mg#值和相容元素Ni、Cr含量较高，表明熔体在上升过程中与上覆地幔楔发生反应。研究分析表明，在新特提斯洋洋脊俯冲作用下，高温热流透过板片窗导致洋壳（及俯冲沉积物）部分熔融形成札佐埃达克质二长花岗岩。同时表明，在80 Ma左右，新特提斯洋仍处于洋脊俯冲阶段。
Abstract:In order to explain late Cretaceous adaktic rocks in South Gangdese and the geodynamic mechanism, we present zircon U-Pb chronology, Lu-Hf isotope and geochemistry analysis for the monzogranite from the Zhazuo area, Zhanang, Tibet. The zircon U-Pb dating yieldes 80.43±0.62 Ma for the Zhazuo monzogranite. The rocks are high-K Calc-alkaline metaluminous, with SiO2 (66.19%~66.84%), Al2O3 (15.17%~15.48%), MgO (1.67%~1.91%), Mg# (47.4~51.5), K2O (3.86%~4.09%), A/CNK (0.91~1.01). The rocks show typical adakitic features, with strongly riched in LREE, high Sr (492×10−6~670.2×10−6), low Y (8.27×10−6~14.99×10−6) and Yb (1.07×10−6~1.79×10−6), high Sr/Y (35.0~81.0) and La/Yb (17.4~21.4) and slightly negative Eu anomalies. They are enriched in LILE and depleted in HFSE, HREE. Zircon εHf(t) values range from 10.5 to 14.1, with tDM1 ranging from 184.8 Ma to 326.1 Ma and tDM2 ranging from 247.2 Ma to 476.0 Ma, slightly older than the emplaced age, indicating that the magma is derived from subducted oceanic crust probably with some subducted sediments.The Mg# value of the mantle component imprint in the rock and the content of compatible elements Ni and Cr are high, indicating that the melts have interacted with the mantle during ascent. Research analysis shows that the high heat flow flows through the slab window, which induce partial melting of oceanic crust and some subducted sediments, and forms the adakitic monzogranite in the Zhazuo area under the geodynamic setting of ridge subduction. It further indicates that Neo-Tethys is still in the ridge subduction stage at about 80 Ma.
-
Key words:
- south Gangdese /
- Late Cretaceous /
- adakite /
- Lu-Hf /
- Ridge subduction
-
-
图 4 二长花岗岩稀土元素配分曲线（a）和微量元素配分曲线（b）（稀土元素标准化值据Boynton and William，1984；微量元素标准化值据McDonough and Sun，1995）
Figure 4.
图 7 札佐二长花岗岩Y-Sr/Y(a)和YbN-(La/Yb)N(b)判别图解(据Defant and Drummond, 1990)
Figure 7.
图 9 札佐埃达克岩源区判别图解Yb-SiO2 (a)和MgO-SiO2(b)(据Wang, 2006)
Figure 9.
表 1 二长花岗岩主量、稀土、微量元素分析结果
Table 1. Major elements, REE and trace elements of the monzogranite
样号 ZZ01 ZZ02 ZZ03 ZZ04 样号 ZZ01 ZZ02 ZZ03 ZZ04 SiO2 66.19 66.84 67.56 66.48 Hf 3.12 4.64 4.45 3.69 Al2O3 15.48 15.27 15.23 15.17 Ta 0.69 0.69 0.38 0.89 TiO2 0.52 0.49 0.47 0.56 W 0.33 0.41 0.56 0.47 Fe2O3 1.59 1.82 1.62 1.73 Tl 0.44 0.75 0.66 0.53 FeO 2.05 1.75 1.57 2.05 Pb 11.1 16.6 13.1 11.4 CaO 3.11 2.87 2.4 3.39 Bi 0.07 0.12 0.06 0.055 MgO 1.85 1.81 1.67 1.91 Th 9.84 15.3 5.51 33.2 K2O 3.86 4.09 3.91 3.95 U 2.27 3.82 2.76 8.47 Na2O 3.82 3.49 3.92 3.77 La 23.56 31 21.29 29.38 MnO 0.06 0.06 0.06 0.07 Ce 45.75 61.84 38.57 56.44 P2O5 0.16 0.16 0.14 0.17 Pr 5.87 7.57 4.57 6.63 LOS 1.14 1.19 1.27 0.61 Nd 20.35 27.91 17.2 24.3 ∑ 99.84 99.85 99.82 99.86 Sm 3.42 4.77 2.85 4.16 ALK 7.68 7.58 7.82 7.72 Eu 0.86 1.1 1.1 0.99 K2O/Na2O 1.01 1.17 1 1.05 Gd 2.93 3.85 2.37 3.58 A/NK 1.48 1.5 1.43 1.45 Tb 0.39 0.56 0.33 0.49 A/ CNK 0.96 0.99 1.01 0.91 Dy 2.03 3.03 1.76 2.64 Mg# 47.44 50.84 51.54 48.23 Ho 0.37 0.54 0.32 0.49 Li 10.3 14.8 16.8 14.8 Er 1.08 1.63 0.97 1.44 Be 1.46 1.54 1.44 1.61 Tm 0.19 0.28 0.17 0.22 Sc 7.76 8.53 5.92 9.13 Yb 1.1 1.79 1.07 1.41 V 82.7 88.0 74.2 93.6 Lu 0.16 0.25 0.16 0.23 Cr 33.3 35.0 29.4 31.1 Y 11.89 14.99 8.27 13.17 Co 10.1 10.4 9.9 11.8 ∑REE 119.95 161.1 101 145.56 Ni 18.1 18.4 15.1 16.9 LREE/HREE 4.96 4.99 5.55 5.15 Cu 23.6 23.2 6.15 9.50 (La/Yb)N 14.45 11.73 13.43 14.1 Zn 47.5 47.6 36.9 47.7 δEu 0.81 0.76 1.26 0.77 Ga 15.8 19.4 17.9 19.5 Sr/Y 51.42 35.05 81.04 37.36 Rb 93.3 125 107 113 Th/Ce 0.22 0.25 0.14 0.59 Sr 611 525 670 492 Sm/Nd 0.17 0.17 0.17 0.17 Zr 101 143 141 110 (La/Sm)N 4.33 4.09 4.71 4.44 Nb 9.06 9.34 5.30 8.00 (Gd/Yb)N 2.15 1.75 1.8 2.06 Mo 0.87 0.86 0.93 1.30 Rb/Sr 0.15 0.24 0.16 0.23 Sn 0.87 1.17 0.92 1.13 Nb/Ta 13.16 13.55 13.88 8.99 Cs 1.40 2.88 2.96 4.34 Zr/Hf 32.21 30.85 31.68 29.93 Ba 443 563 713 450 Th/Yb 8.94 8.52 5.15 23.55 注：LOS为烧失量；ALK= Na2O+K2O, A/NK=Al2O3/(Na2O+K2O), A/CNK=Al2O3/(CaO+Na2O+K2O); Mg#=100×Mg/(Mg+Fe); δEu=2EuN/(SmN+GdN)，其中N表示球粒陨石标准化。 
下载: 导出CSV
表 2 二长花岗岩LA-ICP-MS锆石U-Pb分析结果
Table 2. LA-ICP-MS zircon U-Pb dating results of the monzogranite
测点 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 207Pb/206Pb 1σ 207Pb/235U 1σ 206Pb/238U 1σ ZZTW1-1 6.4 340.8 409.5 0.83 0.0471 0.0029 0.0837 0.0054 0.0128 0.0002 58 137 82 5 82 1 ZZTW1-2 3.9 194.7 248.6 0.78 0.0459 0.0028 0.0799 0.0048 0.0127 0.0002 — — 78 5 82 1 ZZTW1-3 12.2 595.0 782.6 0.76 0.0478 0.0019 0.0844 0.0034 0.0128 0.0001 87 102 82 3 82 1 ZZTW1-4 7.6 337.7 513.0 0.66 0.0473 0.0016 0.0833 0.0030 0.0128 0.0001 65 81 81 3 82 1 ZZTW1-5 6.3 306.2 442.3 0.69 0.0507 0.0020 0.0861 0.0037 0.0122 0.0002 228 58 84 3 78 1 ZZTW1-6 5.5 281.4 375.4 0.75 0.0548 0.0026 0.0929 0.0043 0.0123 0.0002 467 106 90 4 79 1 ZZTW1-7 13.4 959.5 827.1 1.16 0.0497 0.0017 0.0859 0.0029 0.0126 0.0002 189 80 84 3 81 1 ZZTW1-8 4.6 265.6 365.4 0.73 0.0593 0.0084 0.0866 0.0111 0.0108 0.0003 589 313 84 — 70 2 ZZTW1-9 4.5 229.6 314.3 0.73 0.0488 0.0026 0.0832 0.0042 0.0125 0.0002 139 124 81 4 80 1 ZZTW1-10 5.4 272.0 384.1 0.71 0.0518 0.0023 0.0890 0.0040 0.0125 0.0002 276 104 87 4 80 1 ZZTW1-11 18.5 859.3 1295.1 0.66 0.0469 0.0014 0.0800 0.0023 0.0124 0.0001 43 67 78 2 79 1 ZZTW1-12 10.0 454.6 714.0 0.64 0.0573 0.0053 0.0951 0.0092 0.0120 0.0002 502 206 92 9 77 1 ZZTW1-13 6.7 382.3 436.6 0.88 0.0520 0.0044 0.0903 0.0074 0.0126 0.0003 283 201 88 7 81 2 ZZTW1-14 3.0 167.1 191.5 0.87 0.0495 0.0031 0.0847 0.0052 0.0125 0.0002 169 146 83 5 80 1 ZZTW1-15 3.8 194.0 255.9 0.76 0.0492 0.0031 0.0835 0.0052 0.0124 0.0002 167 −51 81 5 79 1 ZZTW1-16 8.3 494.1 529.7 0.93 0.0515 0.0025 0.0888 0.0042 0.0126 0.0001 261 113 86 4 81 1 ZZTW1-17 8.7 551.4 508.8 1.08 0.0523 0.0029 0.0928 0.0055 0.0128 0.0002 298 128 90 5 82 1 ZZTW1-18 7.0 364.4 460.7 0.79 0.0467 0.0032 0.0802 0.0053 0.0125 0.0002 35 156 78 5 80 1 ZZTW1-19 5.6 285.3 350.9 0.81 0.0520 0.0026 0.0915 0.0046 0.0128 0.0002 287 115 89 4 82 1 ZZTW1-20 4.2 227.3 250.9 0.91 0.0475 0.0051 0.0826 0.0081 0.0129 0.0003 72 237 81 8 83 2
下载: 导出CSV
表 3 二长花岗岩锆石Hf同位素分析结果
Table 3. Zircon Hf isotopic analysis results of the monzogranite
测点号 t(Ma) 176Yb/177Hf 176Lu/177Hf 176Hf/177Hf 2σ εHf(t) tDM1(Ma) tDM2(Ma) fLu/Hf ZZTW1-2 81.65 0.016990 0.000700 0.283117 0.000069 14.0 188.1 253.2 −0.98 ZZTW1-4 81.70 0.016298 0.000716 0.283020 0.000043 10.5 326.5 476.0 −0.98 ZZTW1-5 78.37 0.022818 0.000902 0.283119 0.000277 13.9 187.6 253.4 −0.97 ZZTW1-7 80.62 0.020354 0.000822 0.283100 0.000040 13.3 213.7 294.3 −0.98 ZZTW1-10 80.12 0.021959 0.001043 0.283065 0.000042 12.0 265.5 376.1 −0.97 ZZTW1-11 79.39 0.033991 0.001611 0.283063 0.000030 11.9 272.4 382.8 −0.95 ZZTW1-13 80.92 0.019700 0.000787 0.283061 0.000039 11.9 269.1 383.4 −0.98 ZZTW1-15 79.41 0.022569 0.000905 0.283037 0.000035 11.1 303.4 438.3 −0.97 ZZTW1-16 80.57 0.017773 0.000784 0.283062 0.000027 12.0 267.3 380.8 −0.98 ZZTW1-18 80.30 0.017272 0.000738 0.283027 0.000027 10.8 316.2 459.9 −0.98 ZZTW1-19 82.17 0.018928 0.000776 0.283120 0.000039 14.1 184.8 247.2 −0.98 ZZTW1-20 82.83 0.018108 0.000779 0.283070 0.000027 12.3 255.8 360.9 −0.98
下载: 导出CSV
-
[1] Boynton W V, 1984. Cosmochemistry of the Rare Earth Elements: Meteorite Studies[J]. Developments in Geochemistry, 63−114.
[2] Chen L, Qin K Z, Li G M, et al. , 2015. Zircon U–Pb ages, geochemistry, and Sr–Nd–Pb–Hf isotopes of the Nuri intrusive rocks in the Gangdese area, southern Tibet: Constraints on timing, petrogenesis, and tectonic transformation[J]. Lithos, 212-215: 379-396. doi: 10.1016/j.lithos.2014.11.014
[3] 代作文, 李光明, 丁俊, 等, 2018. 西藏努日晚白垩世埃达克岩: 洋脊俯冲的产物[J]. 地球科学, 43（8）: 2727-2741
Dai Z W, Li G M, Ding J, et al. , 2018. Late Cretaceous adakite in Nuri area, Tibet: products of ridge subduction[J]. Earth Science, 43（8）: 2727-2741
[4] Defant M J, Drummond M S, 1990. Derivation of some modern arc magmas by melting of young subducted lithosphere[J]. Nature, 347（6294）: 662-665. doi: 10.1038/347662a0
[5] 董随亮, 黄勇, 李光明, 等, 2015. 藏南努日铜-钨-钼矿床晚白垩世石英闪长岩U-Pb定年及其地球化学特征[J]. 岩矿测试, 34（6）: 712-718
Dong S L, Huang Y, Li G M, et al. , 2015. LA-ICP-MS zircon U-Pb dating and geochemistry of late Cretaceous quartz diorite in the Nuri Cu-Mo-W deposit, south Tibet[J]. Rock and Mineral Analysis, 34（6）: 712-718
[6] 管琪, 朱弟成, 赵志丹, 等, 2010. 西藏南部冈底斯带东段晚白垩世埃达克岩: 新特提斯洋脊俯冲的产物?[J]. 岩石学报, 26（7）: 2165-2179
Guan Q, Zhu D C, Zhao Z D, et al. , 2010. Late Cretaceous adakites in the eastern segment of the Gangdese Belt, southern Tibet: Products of Neo-Tethyan ridge subduction?[J]. Acta Petrologica Sinica, 26（7）: 2165-2179
[7] Guo Z, Wilson M, Liu J, 2007. Post-collisional adakites in south Tibet: Products of partial melting of subduction-modified lower crust [J]. Lithos, 96（1-2）: 205-224. doi: 10.1016/j.lithos.2006.09.011
[8] Hawkesworth C, Turner S, Peate D, et al. , 1997. Elemental U and Th variations in island arc rocks: implications for U-series isotopes[J]. Chemical Geology, 139（1-4）: 207-221. doi: 10.1016/S0009-2541(97)00036-3
[9] Hermann J, Spandler C, 2006. Sediment melts at sub-arc depth[J]. Geochimica Et Cosmochimica Acta, 70（18-supp-S）: A248-A248.
[10] 侯可军, 李延河, 邹天人, 等, 2007. LA-MC-ICP-MS锆石Hf同位素的分析方法及地质应用[J]. 岩石学报, 23（10）: 2595-2604 doi: 10.3969/j.issn.1000-0569.2007.10.025
Hou K J, Li Y H, Zou T R, et al. , 2007. Laser ablation-MC-ICP-MS technique for Hf isotopic for Hf isotope microanalysis of zircon and its geological application[J]. Acta Petrologica Sinica, 23（10）: 2595-2604 doi: 10.3969/j.issn.1000-0569.2007.10.025
[11] 纪伟强, 吴福元, 锺孙霖, 等, 2009. 西藏南部冈底斯岩基花岗岩时代与岩石成因[J]. 中国科学D辑, 39（7）: 849-871
Ji W Q, Wu F Y, Zhong S L, et al. , 2009. Geochronology and petrogenesis of granitic rocks in Gangdese batholith, southern Tibet[J]. Sci China Ser D-Earth Sci, 39（7）: 849-871
[12] Jiang Y H, Jiang S Y, Ling H F, et al. , 2006. Low-degree melting of a metasomatized lithospheric mantle for the origin of Cenozoic Yulong monzogranite-porphyry, east Tibet: Geochemical and Sr–Nd–Pb–Hf isotopic constraints[J]. Earth and Planetary Science Letters, 241（3-4）: 617-633. doi: 10.1016/j.jpgl.2005.11.023
[13] 刘金恒, 2018. 西藏松多地区晚白垩世两期岩浆岩岩石成因及构造背景[D]. 长春: 吉林大学.
Liu J H, 2018. Petrogenesis and tectonic setting of the late Cretaceous magmatic rocks in Songdo area, Tibet[D]. Chang Chun: Jilin University.
[14] Liu Y S, Gao S, Hu Z C, et al. , 2010. Continental and Oceanic Crust Recycling-induced Melt–Peridotite Interactions in the Trans-North China Orogen: U–Pb Dating, Hf Isotopes and Trace Elements in Zircons from Mantle Xenoliths[J]. Journal of Petrology, 51: : 537-571. doi: 10.1093/petrology/egp082
[15] Ma L, Wang Q, Li Z X, et al. , 2013. Early Late Cretaceous （ca. 93Ma） norites and hornblendites in the Milin area, eastern Gangdese: Lithosphere–asthenosphere interaction during slab roll-back and an insight into early Late Cretaceous （ca. 100–80Ma） magmatic "flare-up" in southern Lhasa （Tibet）[J]. Lithos, 172-173: 17-30. doi: 10.1016/j.lithos.2013.03.007
[16] Macpherson C G, Dreher S T, Thirlwall M F, 2006. Adakites without slab melting: High pressure differentiation of island arc magma, Mindanao, the Philippines[J]. Earth and Planetary Science Letters, 243（3-4）: 581-593. doi: 10.1016/j.jpgl.2005.12.034
[17] Martin H, 1999. Adakitic magmas: modern analogues of Archaean granitoids[J]. Lithos, 46.
[18] Mcdonough W F, Sun S S, 1995. The composition of the Earth[J]. Chemical Geology, 120（3-4）: 223-253. doi: 10.1016/0009-2541(94)00140-4
[19] 孟繁一, 赵志丹, 朱弟成, 等, 2010. 西藏冈底斯东部门巴地区晚白垩世埃达克质岩的岩石成因[J]. 岩石学报, 26（7）: 2180-2192
Meng F Y, Zhao Z D, Zhu D C, et al. , 2010. Petrogenesis of Late Cretaceous adakite-like rocks in Mamba from the eastern Gangdese, Tibet[J]. Acta Petrologica Sinica, 26（7）: 2180-2192
[20] Middlemost E A K, 1994. Naming materials in the magma/igneous rock system[J]. Earth-Science Reviews, 37（3-4）: 215-224. doi: 10.1016/0012-8252(94)90029-9
[21] 莫宣学, 2011. 岩浆作用与青藏高原演化[J]. 高校地质学报, 17（3）: 351-367
Mo X X, 2011. Magmatism and Evolution of the Tibetan Plateau[J]. Geological Journal of China Universities, 17（3）: 351-367
[22] Muir R J, Weaver S D, Bradshaw J D, et al. , 1995. The Cretaceous Separation Point batholith, New Zealand: granitoid magmas formed by melting of mafic lithosphere[J]. Journal of the Geological Society, 152（4）: 689-701. doi: 10.1144/gsjgs.152.4.0689
[23] 潘桂棠, 莫宣学, 侯增谦, 等, 2006. 冈底斯造山带的时空结构及演化[J]. 岩石学报, 22（3）: 521-533
Pan G T, Mo X X, Hou Z Q, et al. , 2006. Spatial-temporal framework of the gangdese orogenic belt and its evolution[J]. Acta Petrologica Sinica, 22（3）: 521-533
[24] Peccerillo A, Taylor S R, 1976. Geochemistry of eocene calc-alkaline volcanic rocks from the Kastamonu area, Northern Turkey[J]. Contributions to Mineralogy & Petrology, 58（1）: 63-81.
[25] R. H Smithies, 2000. The Archaean tonalite-trondhjemite-granodiorite （TTG） series is not an analogue of Cenozoic adakite[J]. Earth and Planetary Science Letters, 182（1）: 115-125. doi: 10.1016/S0012-821X(00)00236-3
[26] Robert P. RAPP, 肖龙, Nobu Shimizu, 2002. 中国东部富钾埃达克岩成因的实验约束[J]. 岩石学报, 18（3）: 293-302
Rapp R P, Xiao L, Shimizu N, 2002. Experimental constraints on the origin of potassium-rich adakites in eastern China[J]. Acta Petrologica Sinica, 18（3）: 293-302
[27] Taylor M E, Forester R M, 1979. Distributional model for marine isopod crustaceans and its bearing on early Paleozoic paleozoogeography and continental drift[J]. Geological Society of America Bulletin, 90（4）: 731.
[28] WANG Q, 2006. Petrogenesis of Adakitic Porphyries in an Extensional Tectonic Setting, Dexing, South China: Implications for the Genesis of Porphyry Copper Mineralization[J]. Journal of Petrology, 47（1）: 119-144. doi: 10.1093/petrology/egi070
[29] 王强, 许继峰, 赵振华, 等, 2007. 中国埃达克岩或埃达克质岩及相关金属成矿作用[J]. 矿物岩石地球化学通报, 26（4）: 336-349
Wang Q, Xu J F, Zhao Z H, et al. , 2007. Adakites or adakitic rocks and associated metal metallogenesis in China[J]. Bulletin of mineralogy, petrology and geochemistry, 26（4）: 336-349
[30] Wen D R, Chung S L, Song B, et al. , 2008. Late Cretaceous Gangdese intrusions of adakitic geochemical characteristics, SE Tibet: Petrogenesis and tectonic implications [J]. Lithos, 105（1-2）: 1-11. doi: 10.1016/j.lithos.2008.02.005
[31] Wen D R, Liu D, Chung S L, et al. , 2008. Zircon SHRIMP U–Pb ages of the Gangdese Batholith and implications for Neotethyan subduction in southern Tibet [J]. Chemical Geology, 252（3-4）: 191-201. doi: 10.1016/j.chemgeo.2008.03.003
[32] 吴昌炟, 2019. 西藏冈底斯带埃达克岩岩石成因与斑岩铜成矿潜力研究[D]. 北京: 中国地质大学（北京）.
Wu C D, 2019. Petrogenesis of adakites and its potential for porphyry copper mineralization in Gangdese belt, Tibet[D]. Beijing: China University of Geosciences（Beijing）.
[33] 吴福元, 李献华, 郑永飞, 等, 2007. Lu-Hf同位素体系及其岩石学应用[J]. 岩石学报, 23（2）: 185-220
Wu F Y, Li X H, Zh Y F, et al. , 2007. Lu-Hf isotopic systematics and their application in petrology[J]. Acta Petrologica Sinica, 23（2）: 185-220
[34] Wu F Y, Yang Y H, Xie L W, et al. , 2006. Hf isotopic compositions of the standard zircons and baddeleyites used in U–Pb geochronology[J]. Chemical Geology, 234（1-2）: 105-126. doi: 10.1016/j.chemgeo.2006.05.003
[35] 肖龙, Robert P RAPP, 许继峰, 2004. 深部过程对埃达克质岩石成分的制约[J]. 岩石学报, 20（2）: 219−228
Xiao L, Robert R P, Xu J F, 2004. The role of deep process controls on variation of compositions adakitic rocks. Acta Petrologica Sinica, 20（2）: 219−228
[36] 续海金, 马昌前, 2003. 实验岩石学对埃达克岩成因的限定——兼论中国东部富钾高Sr/Y比值花岗岩类[J]. 地学前缘, 10（4）: 417-427
Xu H J, Ma C Q, 2003. Constraints of experimental petrology on the origin of adakites, and petrogenesis of Mesozoic K-rich and high Sr/Y ratio granitoids in eastern China[J]. Earth Science Frontiers, 10（4）: 417-427
[37] Xu J F, Shinjo R, Defant M J, et al. , 2002. Origin of Mesozoic adakitic intrusive rocks in the Ningzhen area of east China: Partial melting of delaminated lower continental crust?[J]. Geology, 30（12）: 1111-1114. doi: 10.1130/0091-7613(2002)030<1111:OOMAIR>2.0.CO;2
[38] Xu W C, Zhang H F, Luo B J, et al. , 2015. Adakite-like geochemical signature produced by amphibole-dominated fractionation of arc magmas: An example from the Late Cretaceous magmatism in Gangdese belt, south Tibet[J]. Lithos, 232: 197-210. doi: 10.1016/j.lithos.2015.07.001
[39] 许志琴, 杨经绥, 李海兵, 等, 2011. 印度-亚洲碰撞大地构造[J]. 地质学报, 85（1）: 1-33 doi: 10.1111/j.1755-6724.2011.00375.x
Xu Z Q, Yang J S, Li H B, et al. , 2011. On the tectonics of the India-Asia collision[J]. Acta Geological Sinica, 85（1）: 1-33 doi: 10.1111/j.1755-6724.2011.00375.x
[40] 姚兴华, 张志平, 汪宏涛, 等, 2019. 西藏桑日县马门晚白垩世O型埃达克岩年代学、地球化学及构造意义[J]. 矿产勘查, （6）: 1327-1338
Yao X H, Zhang Z P, Wang H T, et al. , 2019. Chronology, geochemistry and tectonic significance of late Cretaceous O-type adakite in Mamen, Sangri county, Tibet[J]. Mineral Exploration, （6）: 1327-1338
[41] 章凤奇, 陈汉林, 曹瑞成, 等, 2010. 海拉尔盆地基底晚古生代adakite的发现及其地质意义[J]. 岩石学报, 26（2）: 633-641
Zhang F Q, Chen H L, Cao R C, et al. , 2010. Discovery of late Paleozoic adakite from the basement of the Hailaer Basin in NE China and its geological implication[J]. Acta Geological Sinica, 26（2）: 633-641
[42] 张宏飞, 徐旺春, 郭建秋, 等, 2007. 冈底斯南缘变形花岗岩锆石U-Pb年龄和Hf同位素组成: 新特提斯洋早侏罗世俯冲作用的证据[J]. 岩石学报, 23（6）: 1347-1353 doi: 10.3969/j.issn.1000-0569.2007.06.011
Zhang H F, Xu W C, Guo J Q, et al. , 2007. Ziron U-Pb and Hf isotopic composition of deformed granite in the southern margin of the Gangdese belt, Tibet: Evidence for early Jurassic subduction of Neo-Tethyan oceanic slab[J]. Acta Geological Sinica, 23（6）: 1347-1353 doi: 10.3969/j.issn.1000-0569.2007.06.011
[43] Zhang K J, Xia B D, Wang G M, et al. , 2004. Early Cretaceous stratigraphy, depositional environments, sandstone provenance, and tectonic setting of central Tibet, western China[J]. Geological Society of America Bulletin, 116（9）: 1202. doi: 10.1130/B25388.1
[44] Zhang Q, Jin W J, Li C D, et al. , 2010. Revisiting the new classification of granitic rocks based on whole-rock Sr and Yb contents: Index[J]. Acta Petrologica Sinica, 26（4）: 985-1015.
[45] 张旗, 王焰, 刘红涛, 等, 2003. 中国埃达克岩的时空分布及其形成背景附: 《国内关于埃达克岩的争论》[J]. 地学前缘, 10（4）: 16
Zhang Q, Wang Y, Liu H T, et al. , 2003. On the space-time distribution and geodynamic environments of adakites in China Annex: Controversies over differing opinions for adakites in China[J]. Earth Science Frontiers, 10（4）: 16
[46] Zhang Z, Zhao G, Santosh M, et al. , 2010. Late Cretaceous charnockite with adakitic affinities from the Gangdese batholith, southeastern Tibet: Evidence for Neo-Tethyan mid-ocean ridge subduction?[J]. Gondwana Research, 17（4）: 615-631. doi: 10.1016/j.gr.2009.10.007
[47] Zheng Y C, Hou Z Q, Gong Y L, et al. , 2014. Petrogenesis of Cretaceous adakite-like intrusions of the Gangdese Plutonic Belt, southern Tibet: Implications for mid-ocean ridge subduction and crustal growth[J]. Lithos, 190-191: 240-263. doi: 10.1016/j.lithos.2013.12.013
[48] 朱弟成, 莫宣学, 王立全, 等, 2009. 西藏冈底斯东部察隅高分异I型花岗岩的成因: 锆石U-Pb年代学、地球化学和Sr-Nd-Hf同位素约束[J]. 中国科学: 地球科学, 39（7）: 833
Zhu D C, Mo X X, Wang L Q, et al. , 2009. Petrogenesis of highly fractionated I-type granites in the Chayu area of eastern Gangdese, Tibet: Constraints from zircon U-Pb geochronology, geochemistry and Sr-Nd-Hf isotopes[J]. Sci China Ser D-Earth Sci, 39（7）: 833
[49] Zhu D C, Wang Q, Cawood P A, et al. , 2017. Raising the Gangdese Mountains in southern Tibet[J]. Journal of Geophysical Research: Solid Earth, 122（1）.
[50] Zhu D C, Zhao Z D, Niu Y L, et al. , 2013. The origin and pre-Cenozoic evolution of the Tibetan Plateau [J]. Gondwana Research, 23（4）: 1429-1454. doi: 10.1016/j.gr.2012.02.002
-
图(9)
表(3)
计量
- 文章访问数: 602
- PDF下载数: 99
- 施引文献: 0