华北东南缘五河杂岩中镁铁质麻粒岩的变质演化

王程程; 刘贻灿; 杨阳; 张品刚; 聂佳珍

doi:10.3799/dqkx.2018.018

华北东南缘五河杂岩中镁铁质麻粒岩的变质演化

doi: 10.3799/dqkx.2018.018

王程程^1,,
刘贻灿^1, ,,
杨阳¹,
张品刚^1,2,
聂佳珍¹

1.
中国科学院壳幔物质与环境重点实验室, 中国科学技术大学地球和空间科学学院, 安徽合肥 230026
2.
安徽省煤田地质局勘察研究院, 安徽合肥 230088

基金项目:

国家自然科学基金项目 41773020

国家重点基础研究发展计划（973计划）项目 2015CB856104

高等学校博士学科点专项科研基金 20133402130008

详细信息

作者简介:
王程程(1993-), 女, 硕士, 主要从事前寒武纪岩石地球化学研究

通讯作者:
刘贻灿

中图分类号: P588.34;P586
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出版历程
- 收稿日期: 2017-09-16
- 刊出日期: 2018-01-15

Metamorphic Evolution of Mafic Granulites from the Wuhe Complex at the Southeastern Margin of the North China Craton

1.
Key Laboratory of Crust-Mantle Materials and Environments, Chinese Acdemy of Sciences; School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
2.
Exploration Institute of Anhui Coalfield Geology Bureau, Hefei 230088, China

摘要

摘要: 华北东南缘五河杂岩的变质演化过程研究有助于揭示研究区前寒武纪变质基底的形成与演化历史.基于对五河杂岩中镁铁质麻粒岩进行的详细岩相学观察、矿物电子探针及锆石LA-ICP-MS U-Pb定年和微量元素分析，识别出古元古代变质演化的3个阶段，重建了峰期后近等温减压及降压冷却的顺时针P-T-t轨迹.峰期高压麻粒岩相变质阶段的代表性矿物组合为石榴子石（富Ca核部）+单斜辉石（富Al）+斜长石+石英+金红石±角闪石（富Ti），所记录的峰期温压条件为850~900 ℃、1.5 GPa；峰期后近等温减压麻粒岩相变质阶段，富Ti角闪石分解在周围形成石榴子石+斜方辉石+斜长石±单斜辉石的矿物组合，所记录的温压条件为~900 ℃、1.1~1.2 GPa；晚期角闪岩相退变质阶段，石榴子石分解产生角闪石+斜长石±石英，所记录的温压条件为600~680 ℃、0.65~0.75 GPa.锆石U-Pb定年结果表明，高压麻粒岩相、中压麻粒岩相和角闪岩相变质时代分别为~1.90 Ga、~1.85 Ga和~1.78 Ga.因此，研究区镁铁质麻粒岩的变质演化过程与胶北地体可以对比，结合已有的2.1 Ga花岗质岩石的成因和锆石年代学等方面研究成果，进一步证明五河杂岩属于胶-辽-吉带的西延，二者共同构成了华北克拉通东部一条古元古代碰撞造山带.
- 镁铁质麻粒岩 /
- 高压麻粒岩相 /
- 前寒武纪变质基底 /
- 古元古代 /
- 五河杂岩 /
- 岩石学
Abstract: Investigations on metamorphic processes of the Wuhe complex provide new insights into the formation and evolution of Precambrian metamorphic basement at the southeastern margin of the North China Craton (NCC). In this paper, three Paleoproterozoic stages of metamorphic assemblages from mafic granulites in the Wuhe complex is recognized and a clockwise P-T-t path characterized by post-peak near-isothermal decompression and subsequent decompression-cooling by conducting detailed petrographic observations, mineral electron microprobe analysis, zircon LA-ICP-MS U-Pb dating and trace element analysis is reconstructed. The peak HP granulite-facies metamorphism (M₁) is characterized by high-Ca cores in granet, high-Al cores in clinopyrexene, plagioclase, quartz and rutile, yielding P-T conditions of 850-900℃ and 1.5 GPa. The medium-pressure (MP) granulite facies assemblage (M₂) mainly consists of garnet+orthopyrexene+plagioclase±clinopyrexene surrounding the amphibole porphyroblasts, recording P-T conditions of~900℃ and 1.1-1.2 GPa. Symplectites or coronas composed of hornblende+plagioclase (M₃) surrounding the garnet porphyroblasts indicate garnet decompressional reactions occurred at 600-680℃ and 0.65-0.75 GPa. The zircon dating results can be categorized into three groups of~1.90 Ga, ~1.85 Ga and~1.78 Ga, corresponding to the time of HP granulite facies, MP granulite facies and amphibolite facies metamorphism. The comparable metamorphic evolution of mafic granulites from the Wuhe complex to Jiaobei terrane, combined with previous studies on petrogenesis and U-Pb ages of 2.1 Ga granitic rocks, suggest that the Wuhe complex is the west extension of the Jiao-Liao-Ji belt (JLJB) and they constitute a Paleoproterozoic collisional orogen as a whole in the eastern block of the NCC.
- mafic granulite /
- high-pressure granulite facies /
- Precambrian metamorphic basement /
- Paleoproterozoic /
- Wuhe complex /
- petrology

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图 1 华北东南缘五河杂岩及相邻地区地质简图

MTZ.门台子；MJ.梅家；FY.凤阳；图据刘贻灿等(2015a)

Fig. 1. Geological sketch of the Wuhe complex and adjacent parts of the southeastern margin of the North China Craton

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图 2 华北东南缘五河杂岩中变基性岩的野外照片

a.石榴斜长角闪岩及其围岩大理岩；b, c, d.部分熔融及混合岩化作用；图 2a和2b来自于刘贻灿等(2015b)

Fig. 2. Photographs showing the field occurrence of the metabasic rocks from the Wuhe complex in southeastern margin of the North China Craton

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图 3 华北东南缘石榴单辉麻粒岩显微照片(a, c, d)和背散射照片(b)

Fig. 3. Micrographs (a, c, d) and back scattered electron (BSE) images (b) of garnet clinopyroxene granulites, southeastern margin of the North China Craton

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图 4 五河杂岩变基性岩中角闪石Al^Ⅳ-Ti和Ti-(Na+K)

图据靳是琴(1991)

Fig. 4. Al^Ⅳ-Ti and Ti-(Na+K) diagrams of the amphiboles from meta-basic rocks from the Wuhe complex

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图 5 华北东南缘石榴二辉麻粒岩显微照片(a~e)和背散射照片(f)

Fig. 5. Micrographs (a-e) and back scattered electron (BSE) images (f) of garnet two-pyroxene granulite, southeastern margin of the North China Craton

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图 6 凤阳石榴二辉麻粒岩中石榴子石成分环带

Fig. 6. Compositional zoning of garnets from the Fengyang garnet two-pyroxene granulite

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图 7 华北东南缘五河杂岩中石榴斜长角闪岩的显微照片

Fig. 7. Micrographs of garnet amphibolites from the Wuhe complex in southeastern margin of the North China Craton

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图 8 石榴斜长角闪岩(07FY01, a~e)和石榴二辉麻粒岩(07MJ4, f~i)锆石中矿物包体、阴极发光图像及LA-ICP-MS U-Pb定年结果

Fig. 8. Plane-polarized light images of mineral inclusions, cathodoluminescence (CL) images and LA-ICP-MS U-Pb ages of zircons from garnet amphibolite (07FY01, a-e) and garnet two-pyroxene granulite (07MJ4, f-i)

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图 9 石榴斜长角闪岩(07FY01)和石榴二辉麻粒岩(07MJ4)锆石U-Pb年龄谐和图(a, c)和²⁰⁶Pb/²³⁸U年龄频率图(b, d)

Fig. 9. Zircon U-Pb concordia diagrams (a, c) and histograms of ²⁰⁶Pb/²³⁸U ages (b, d) from one garnet amphibolite (07FY01) and garnet two-pyroxene granulite (07MJ4)

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图 10 石榴斜长角闪岩(07FY01)和石榴二辉麻粒岩(07MJ4)锆石中稀土元素球粒陨石标准化配分模式图

图中颜色符号含义见图 9

Fig. 10. Chondrite-normalized zircon trace elements diagrams of garnet amphibolite (07FY01) and garnet two-pyroxene granulite (07MJ4)

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图 11 华北东南缘五河杂岩中镁铁质高压麻粒岩的变质P-T-t轨迹

Am.角闪岩相；Gn.麻粒岩相；E-HPG.榴辉岩-高压麻粒岩相，据Brown(2014)；P-T轨迹1和2.胶北地体1.85~1.90 Ga镁铁质麻粒岩；线1据Tam et al.(2012a)；线2据Liu et al.(2013a)；线3为本文结果

Fig. 11. Generalized P-T-t path for the HP mafic granulites in the Wuhe complex, southeastern margin of the North China Craton

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图 12 高压麻粒岩相变基性岩中多相矿物包体(a~c)和高钙石榴子石(d)

Fig. 12. Multiphase mineral inclusions in HP granulite facies meta-basic rocks (a-c) and garnet with high CaO contents (d)

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表 1 五河杂岩石榴单辉麻粒岩中代表性石榴子石的化学成分(%)

Table 1. Chemical composition (%) of representative garnets from garnet clinopyroxene granulites in the Wuhe complex

样品	12MTZ6		12MTZ2		1403MJ2-6		1403FY1-2
SiO₂	37.86	38.12	37.64	37.16	38.38	37.94	38.91	38.76
TiO₂	0.12	0.10	0.14	0.10	0.14	0.15	0.01	0.06
Al₂O₃	20.80	20.99	20.56	20.80	21.10	21.14	21.66	21.64
Cr₂O₃	-	-	-	-	-	-	0.04	0.06
FeO^T	26.55	26.77	26.85	27.41	25.10	21.95	26.17	27.04
MnO	0.61	0.68	0.60	0.55	0.60	0.61	0.26	0.23
MgO	5.91	5.97	4.60	4.08	7.24	5.52	5.97	5.71
CaO	6.80	6.80	8.85	8.75	6.85	11.77	7.46	7.20
Total	98.69	99.45	99.28	98.89	99.41	99.09	100.49	100.76
以12个氧为标准计算的阳离子系数
Si	2.99	2.99	2.98	2.96	2.98	2.96	3.01	3.00
Ti	0.01	0.01	0.01	0.01	0.01	0.01	0.00	0.00
Al	1.94	1.94	1.92	1.96	1.93	1.95	1.97	1.97
Cr	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
Fe³⁺	0.06	0.06	0.09	0.07	0.07	0.07	0.02	0.02
Fe²⁺	1.69	1.69	1.68	1.76	1.56	1.36	1.67	1.73
Mn	0.04	0.05	0.04	0.04	0.04	0.04	0.02	0.02
Mg	0.70	0.70	0.54	0.48	0.84	0.64	0.69	0.66
Ca	0.58	0.57	0.75	0.75	0.57	0.98	0.62	0.60
Ura	0.00	0.00	0.00	0.00	0.00	0.00	0.13	0.19
And	3.23	3.20	4.66	3.26	3.62	3.62	1.02	1.09
Pyr	23.18	23.22	17.99	15.99	27.89	21.23	22.99	21.97
Spe	1.37	1.51	1.32	1.23	1.31	1.34	0.57	0.51
Gro	15.94	15.80	20.22	21.40	15.36	28.89	19.48	18.62
Alm	56.28	56.27	55.80	58.12	51.82	44.92	55.81	57.61

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表 2 五河杂岩石榴单辉麻粒岩中代表性单斜辉石的化学成分(%)

Table 2. Chemical composition (%) of representative clinopyroxenes from garnet clinopyroxene granulite in the Wuhe complex

样品	12MTZ6		12MTZ2		1403MJ2-6		1403FY1-2
SiO₂	50.91	50.13	49.92	49.32	52.07	51.40	51.71	51.65
TiO₂	1.10	1.14	1.18	1.18	0.83	0.66	0.66	0.70
Al₂O₃	5.43	5.22	6.54	6.52	4.03	4.14	3.27	3.70
FeO^T	9.82	9.61	12.15	12.89	8.49	9.76	9.41	9.79
MnO	0.04	0.02	0.09	0.09	0.04	0.11	0.01	0.03
MgO	11.70	11.34	9.06	8.54	12.21	11.69	12.63	12.17
CaO	20.29	21.11	20.26	20.66	21.52	21.40	22.61	22.05
Na₂O	0.63	0.60	0.58	0.52	0.42	0.47	0.50	0.51
K₂O	0.01	0.00	0.01	0.01	0.01	0.03	-	-
Total	99.96	99.20	99.80	99.72	99.68	99.72	100.81	100.63
以6个氧为标准计算的阳离子系数
Si	1.90	1.89	1.88	1.87	1.94	1.92	1.92	1.92
Al^Ⅳ	0.10	0.11	0.12	0.13	0.06	0.08	0.08	0.08
Al^Ⅵ	0.13	0.12	0.17	0.16	0.11	0.11	0.06	0.08
Ti	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02
Fe³⁺	0.00	0.00	0.00	0.00	0.00	0.00	0.02	0.00
Fe²⁺	0.31	0.30	0.39	0.41	0.27	0.31	0.27	0.30
Mg	0.65	0.64	0.51	0.48	0.68	0.65	0.70	0.67
Ca	0.81	0.85	0.82	0.84	0.86	0.86	0.90	0.88
Na	0.05	0.04	0.04	0.04	0.03	0.03	0.04	0.04
En	44.65	46.36	46.53	47.27	46.79	46.28	46.68	46.33
Fs	35.82	34.67	28.93	27.21	36.94	35.16	36.30	35.59
Ac	17.04	16.57	22.14	23.36	14.60	16.73	15.15	16.13
Wo	2.49	2.40	2.40	2.16	1.66	1.82	1.87	1.95

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表 3 五河杂岩石榴单辉麻粒岩中代表性角闪石的化学成分(%)

Table 3. Chemical composition (%) of representative amphiboles from garnet clinopyroxene granulite in the Wuhe complex

样品	12MTZ6					12MTZ2	1403MJ2-6
样品	M₂		M₃			12MTZ2	1403MJ2-6
SiO₂	40.31	41.43	40.43	40.80	40.77	41.02	42.11
TiO₂	3.41	1.31	0.12	0.12	0.19	4.90	3.88
Al₂O₃	13.70	15.63	16.71	16.15	15.38	13.79	12.43
FeO^T	17.28	15.15	17.24	19.47	20.71	14.85	13.71
MnO	0.15	0.10	0.10	0.14	0.20	0.06	0.04
MgO	7.63	9.84	8.61	7.77	6.91	8.82	11.23
CaO	10.93	10.49	10.90	11.00	11.21	11.26	11.07
Na₂O	2.06	2.33	2.05	2.09	1.64	1.31	1.33
K₂O	1.32	0.66	0.35	0.35	0.48	0.51	0.97
Total	97.08	97.18	96.71	98.06	97.50	96.59	96.81
以23个氧为标准计算的阳离子系数
Si	6.16	6.19	6.13	6.16	6.22	6.16	6.29
Al^Ⅳ	1.84	1.81	1.87	1.84	1.78	1.84	1.71
Al^Ⅵ	0.63	0.95	1.11	1.03	0.99	0.61	0.47
Ti	0.39	0.15	0.01	0.01	0.02	0.55	0.44
Fe³⁺	0.35	0.32	0.30	0.27	0.34	0.70	0.53
Fe²⁺	1.85	1.58	1.89	2.19	2.31	1.17	1.18
Mn	0.02	0.01	0.01	0.02	0.03	0.01	0.01
Mg	1.74	2.19	1.94	1.75	1.57	1.97	2.50
Ca	1.79	1.68	1.77	1.78	1.83	1.81	1.77
Na	0.61	0.68	0.60	0.61	0.49	0.38	0.38
K	0.26	0.13	0.07	0.07	0.09	0.10	0.19

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表 4 五河杂岩石榴单辉麻粒岩中代表性斜长石化学成分(%)

Table 4. Chemical composition (%) of representative plagioclases from garnet clinopyroxene granulite in the Wuhe complex

样品	12MTZ6				12MTZ2		1403FY1-2		1403MTZ2-6
样品	M₂		M₃		12MTZ2		1403FY1-2		1403MTZ2-6
SiO₂	57.51	57.46	48.84	45.02	58.14	57.00	54.85	54.55	58.29	58.51
TiO₂	-	-	0.01	-	0.02	0.08	-	0.05	0.04	0.04
Al₂O₃	27.21	27.25	33.01	35.55	27.04	26.97	28.40	28.93	26.38	26.25
FeO	0.16	0.05	0.46	0.35	0.04	0.15	0.08	0.39	0.02	0.09
CaO	8.59	8.35	15.39	18.48	8.32	8.79	11.44	11.85	8.08	7.77
Na₂O	6.25	6.58	2.51	0.44	6.36	6.15	4.96	4.84	6.72	6.45
K₂O	0.04	0.06	0.01	0.01	0.02	-	0.12	0.06	0.19	0.18
Total	99.83	99.80	100.24	99.90	99.98	99.24	99.84	100.71	99.75	99.35
以8个氧为标准计算的阳离子系数
Si	2.58	2.58	2.23	2.08	2.60	2.58	2.48	2.46	2.61	2.63
Al	1.44	1.44	1.78	1.94	1.42	1.44	1.51	1.54	1.39	1.39
Ca	0.41	0.40	0.75	0.92	0.40	0.43	0.55	0.57	0.39	0.37
Na	0.54	0.57	0.22	0.04	0.55	0.54	0.43	0.42	0.58	0.56
K	0.00	0.00	0.00	0.00	0.00	0.00	0.01	0.00	0.01	0.01
An	43.09	41.07	77.14	95.80	41.88	44.12	55.66	57.28	39.50	39.53
Ab	56.70	58.61	22.77	4.14	58.00	55.88	43.67	42.36	59.42	59.39
Or	0.22	0.32	0.08	0.07	0.13	0.00	0.67	0.36	1.08	1.08

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表 5 五河杂岩石榴二辉麻粒岩中代表性石榴子石的化学成分(%)

Table 5. Chemical composition (%) of representative garnets from garnet two-pyroxene granulite in the Wuhe complex

样品	1310FY5-3基质中的石榴子石从核部-边部-核部										1310FY5-3 M₂				07MJ4
SiO₂	37.72	37.62	37.38	38.10	38.21	38.05	38.08	38.37	38.01	37.84	38.19	38.63	38.86	39.02	38.12	37.86
TiO₂	0.09	0.04	0.09	0.12	0.09	0.07	0.11	0.11	-	0.05	-	0.06	0.01	-	0.10	0.08
Al₂O₃	21.08	20.77	20.46	20.79	20.64	20.73	20.44	20.64	20.57	20.56	21.00	20.67	21.10	21.01	20.80	20.57
Cr₂O₃	0.04	0.04	-	0.00	-	-	0.05	0.04	0.03	0.07	0.04	0.10	0.00	-	-	-
FeO^T	26.77	24.22	23.41	21.80	21.90	23.03	23.52	22.81	22.73	27.48	26.71	27.75	26.57	25.04	26.81	27.41
MnO	0.82	0.59	0.54	0.56	0.43	0.53	0.60	0.61	0.56	0.86	0.52	0.56	0.43	0.48	0.92	0.87
MgO	5.55	4.78	4.66	4.50	4.42	4.64	4.39	4.24	4.13	4.82	6.91	6.19	6.90	7.47	6.09	6.07
CaO	6.66	10.83	12.40	13.24	13.01	11.90	12.33	12.29	12.91	7.30	5.89	5.88	6.03	6.58	6.19	6.04
Total	98.78	98.89	98.97	99.10	98.72	98.96	99.53	99.14	98.94	99.02	99.28	99.87	99.92	99.69	99.07	98.93
以12个氧为标准计算的阳离子系数
Si	2.99	2.97	2.95	2.98	3.00	2.99	2.98	3.01	2.99	3.00	2.99	3.02	3.01	3.02	3.00	2.99
Ti	0.01	0.00	0.01	0.01	0.01	0.00	0.01	0.01	0.00	0.00	0.00	0.00	0.00	0.00	0.01	0.00
Al	1.97	1.93	1.90	1.92	1.91	1.92	1.89	1.91	1.91	1.92	1.94	1.90	1.93	1.91	1.93	1.91
Cr	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.01	0.00	0.00	0.00	0.00
Fe³⁺	0.04	0.09	0.13	0.09	0.09	0.09	0.12	0.08	0.10	0.07	0.07	0.08	0.06	0.07	0.07	0.09
Fe²⁺	1.74	1.51	1.41	1.34	1.35	1.43	1.42	1.42	1.40	1.75	1.68	1.73	1.66	1.55	1.70	1.72
Mn	0.05	0.04	0.04	0.04	0.03	0.04	0.04	0.04	0.04	0.06	0.03	0.04	0.03	0.03	0.06	0.06
Mg	0.65	0.56	0.55	0.52	0.52	0.54	0.51	0.50	0.48	0.57	0.81	0.72	0.80	0.86	0.71	0.71
Ca	0.56	0.92	1.05	1.11	1.09	1.00	1.03	1.03	1.09	0.62	0.49	0.49	0.50	0.54	0.52	0.51
Ura	0.13	0.11	0.00	0.00	0.00	0.00	0.15	0.12	0.10	0.20	0.11	0.31	0.01	0.00	0.00	0.00
And	1.85	4.28	6.37	4.43	4.26	4.26	5.85	4.01	4.83	3.62	3.45	4.00	3.17	3.70	3.37	4.44
Pyr	21.74	18.57	17.99	17.43	17.29	18.05	17.03	16.60	16.11	18.99	26.75	24.16	26.71	28.86	23.86	23.79
Spe	1.83	1.31	1.18	1.24	0.95	1.18	1.32	1.35	1.25	1.92	1.15	1.24	0.95	1.06	2.05	1.93
Gro	16.79	25.82	28.02	32.45	32.29	29.05	28.38	30.47	31.24	16.87	12.82	12.18	13.59	14.56	14.06	12.56
Alm	57.66	49.90	46.44	44.44	45.20	47.46	47.28	47.45	46.48	58.39	55.71	58.12	55.57	51.82	56.67	57.29

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表 6 五河杂岩石榴二辉麻粒岩中代表性辉石的化学成分(%)

Table 6. Chemical compositions (%) of representative pyroxenes from garnet two-pyroxene granulite in the Wuhe complex

样品	单斜辉石							斜方辉石
	1310FY5-3				07MJ4			1310FY5-3			07MJ4
	M₁		M₂		07MJ4			1310FY5-3			07MJ4
SiO₂	49.90	50.16	51.93	51.59	51.25	51.71	51.96	52.25	51.81	51.86	52.40	51.70	51.47
TiO₂	0.48	0.54	0.27	0.22	0.59	0.59	0.52	-	0.08	0.01	0.03	0.10	0.21
Al₂O₃	5.41	5.17	4.29	4.58	3.58	4.08	3.66	2.31	2.56	2.58	1.55	2.03	2.09
FeO^T	9.73	10.44	7.96	9.27	11.81	11.26	11.10	25.31	24.69	23.38	28.03	28.08	28.61
MnO	0.13	0.09	0.08	0.31	0.15	0.16	0.02	0.22	0.38	0.33	0.30	0.32	0.27
MgO	11.46	11.78	12.62	12.54	11.35	10.75	11.26	19.69	20.46	21.23	17.66	17.25	16.75
CaO	20.73	19.66	22.25	21.06	20.11	20.72	20.88	0.37	0.42	0.52	0.54	0.82	0.71
Na₂O	1.19	1.09	0.78	0.81	0.42	0.44	0.44	-	-	0.00	0.01	0.02	0.02
K₂O	0.01	0.02	-	-	-	-	-	-	0.00	-	0.00	0.00	0.00
Total	99.06	98.96	100.26	100.43	99.28	99.82	99.84	100.16	100.42	99.90	100.54	100.34	100.13
以6个氧为标准计算的阳离子系数
Si	1.89	1.90	1.92	1.91	1.94	1.94	1.95	1.96	1.94	1.94	1.99	1.97	1.97
Al^Ⅳ	0.11	0.10	0.08	0.09	0.06	0.06	0.05	0.04	0.06	0.06	0.01	0.03	0.03
Al^Ⅵ	0.13	0.13	0.11	0.11	0.10	0.12	0.11	0.07	0.05	0.05	0.06	0.06	0.06
Ti	0.01	0.02	0.01	0.01	0.02	0.02	0.01	0.00	0.00	0.00	0.00	0.00	0.01
Fe³⁺	0.07	0.04	0.01	0.02	0.00	0.00	0.00	0.00	0.00	0.01	0.00	0.00	0.00
Fe²⁺	0.23	0.29	0.24	0.26	0.38	0.36	0.35	0.80	0.77	0.72	0.89	0.90	0.92
Mn	0.00	0.00	0.00	0.01	0.00	0.00	0.00	0.01	0.01	0.01	0.01	0.01	0.01
Mg	0.65	0.66	0.70	0.69	0.64	0.60	0.63	1.10	1.14	1.18	1.00	0.98	0.96
Ca	0.84	0.80	0.88	0.84	0.82	0.83	0.84	0.01	0.02	0.02	0.02	0.03	0.03
Na	0.09	0.08	0.06	0.06	0.03	0.03	0.03	0.00	0.00	0.00	0.00	0.00	0.00
En	44.61	42.55	46.85	44.41	43.68	45.57	45.31	0.77	0.86	1.07	1.14	1.74	1.51
Fs	34.30	35.46	36.98	36.77	34.30	32.90	33.99	57.36	58.75	60.83	51.88	50.94	49.90
Ac	16.46	17.73	13.20	15.75	20.36	19.76	18.97	41.88	40.39	38.09	46.95	47.24	48.52
Wo	4.63	4.26	2.97	3.07	1.65	1.77	1.74	0.00	0.00	0.01	0.03	0.08	0.06

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表 7 五河杂岩石榴二辉麻粒岩中代表性角闪石的化学成分(%)

Table 7. Chemical composition (%) of representative amphiboles from garnet two-pyroxene granulites in the Wuhe complex

样品	07MJ4				1310FY5-3从核部到边部										1310FY5-3
SiO₂	41.48	42.22	41.61	41.59	41.07	41.02	40.95	41.05	41.05	41.37	41.29	40.93	41.02	40.83	40.52	40.49	41.00
TiO₂	4.08	4.23	4.12	4.01	1.75	1.94	1.75	1.84	1.85	1.73	1.67	1.81	1.73	1.39	3.58	3.69	3.88
Al₂O₃	12.40	12.20	12.14	12.11	13.66	13.52	13.36	13.32	13.57	13.34	13.58	13.53	13.86	14.44	12.63	12.79	12.28
FeO^T	15.23	12.03	15.94	15.92	13.49	13.05	13.17	12.95	13.21	12.98	12.87	13.15	12.63	12.25	14.30	14.56	14.01
MnO	0.09	0.06	0.05	0.09	0.04	0.12	0.05	0.09	0.10	0.16	0.11		0.01	0.05	0.13	0.05	0.05
MgO	9.75	11.54	9.54	9.38	11.05	10.87	11.02	11.17	11.08	11.20	10.99	11.18	11.15	12.15	10.40	10.02	10.51
CaO	10.81	11.10	11.00	10.83	10.95	11.29	11.20	11.15	11.25	11.18	11.15	11.33	11.18	11.50	10.32	10.37	10.51
Na₂O	1.35	1.47	1.35	1.32	1.76	1.73	1.69	1.75	1.71	1.83	1.79	1.82	1.86	1.88	1.90	1.79	1.82
K₂O	0.90	0.65	0.93	0.98	2.08	2.06	2.09	2.20	2.20	2.04	1.87	1.97	1.89	1.67	2.01	2.00	1.87
Total	96.13	95.54	96.70	96.28	96.87	96.64	96.37	96.58	97.05	96.83	96.32	96.66	96.28	97.12	96.80	96.72	96.81
以23个氧为标准计算的阳离子系数
Si	6.28	6.33	6.29	6.31	6.19	6.20	6.21	6.21	6.18	6.23	6.24	6.18	6.19	6.10	6.15	6.15	6.20
Al^Ⅳ	1.72	1.67	1.71	1.69	1.81	1.80	1.79	1.79	1.82	1.77	1.76	1.82	1.81	1.90	1.85	1.85	1.80
Al^Ⅵ	0.50	0.49	0.45	0.48	0.62	0.61	0.60	0.58	0.59	0.60	0.65	0.59	0.66	0.65	0.41	0.44	0.39
Ti	0.46	0.48	0.47	0.46	0.20	0.22	0.20	0.21	0.21	0.20	0.19	0.21	0.20	0.16	0.41	0.42	0.44
Fe³⁺	0.57	0.61	0.55	0.57	0.31	0.33	0.32	0.30	0.30	0.30	0.35	0.29	0.33	0.24	0.37	0.41	0.43
Fe²⁺	1.36	0.90	1.46	1.46	1.39	1.32	1.35	1.34	1.36	1.33	1.27	1.37	1.27	1.29	1.44	1.44	1.34
Mn	0.01	0.01	0.01	0.01	0.00	0.02	0.01	0.01	0.01	0.02	0.01	0.00	0.00	0.01	0.02	0.01	0.01
Mg	2.20	2.58	2.15	2.12	2.48	2.45	2.49	2.52	2.49	2.52	2.47	2.52	2.51	2.71	2.35	2.27	2.37
Ca	1.75	1.78	1.78	1.76	1.77	1.83	1.82	1.81	1.81	1.80	1.80	1.83	1.81	1.84	1.68	1.69	1.70
Na	0.40	0.43	0.40	0.39	0.51	0.51	0.50	0.51	0.50	0.54	0.52	0.53	0.54	0.55	0.56	0.53	0.53
K	0.17	0.12	0.18	0.19	0.40	0.40	0.40	0.42	0.42	0.39	0.36	0.38	0.36	0.32	0.39	0.39	0.36

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表 8 五河杂岩石榴二辉麻粒岩中代表性斜长石的化学成分(%)

Table 8. Chemical composition (%) of representative plagioclases from garnet two-pyroxene granulites in the Wuhe complex

样品	07MJ4			1310FY5-3
样品	07MJ4			M₁			M₂
SiO₂	59.37	58.84	59.51	57.82	55.63	55.27	59.58	59.40	59.05
TiO₂	-	0.03	0.06	0.02	0.04	-	0.01	0.04	0.02
Al₂O₃	25.86	25.63	25.78	26.27	27.62	27.75	24.68	24.77	24.83
FeO	0.10	0.10	0.06	0.11	0.13	0.16	0.63	0.77	0.38
CaO	7.16	7.30	7.22	9.06	10.45	10.53	7.22	7.10	7.14
Na₂O	7.07	6.91	7.00	6.40	5.67	5.51	7.49	7.21	7.23
K₂O	0.05	0.13	0.13	0.10	0.03	0.07	0.03	0.02	0.05
Total	99.62	98.98	99.77	99.78	103.29	98.75	99.66	99.36	98.69
以8个氧为标准计算的阳离子系数
Si	2.65	2.65	2.66	2.60	2.52	2.51	2.68	2.68	2.67
Al	1.36	1.36	1.36	1.39	1.47	1.48	1.31	1.32	1.32
Ca	0.34	0.35	0.35	0.44	0.51	0.51	0.35	0.34	0.35
Na	0.61	0.60	0.61	0.56	0.50	0.48	0.65	0.63	0.63
K	0.00	0.01	0.01	0.01	0.00	0.00	0.00	0.00	0.00
An	35.78	36.56	36.03	43.65	50.38	51.17	34.70	35.20	35.19
Ab	63.93	62.65	63.21	55.80	49.44	48.42	65.15	64.67	64.54
Or	0.29	0.79	0.77	0.55	0.18	0.42	0.15	0.13	0.26

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表 9 石榴麻粒岩中石榴子石-单斜辉石地质温度计数据

Table 9. Calculated results using the garnrt-clinopyroxene geothermometer for the garnet granulite

样品号	矿物对	T₁(℃)	T₂(℃)	T₃(℃)	P(GPa)	T₄(℃)
12MTZ6	4	913~942	874~908	886~916	1.3	881~916
12MTZ2	4	845~894	807~863	817~868	1.3	800~860
1403MJ2-6	4	826~879	772~838	801~856	1.2	737~802
1403FY1-2	6	755~814	692~757	724~784	1.0	670~735
注：T₁据Elllis and Green, 1979；T₂据Krogh(1988)；T₃据Powell(1985)；T₄据Ravna(2000a)；所用压力值来自于表 10计算结果.

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表 10 石榴麻粒岩中石榴子石-单斜辉石-斜长石-石英地质压力计数据

Table 10. Calculated results using the garnrt-clinopyroxene-plagioclase-quartz geobarometer for the garnet granulite

样品号	变质阶段	Cpx		Grt		Pl
样品号	变质阶段	a_Di	X_Fe	X_Mg	X_Ca	X_An	T(℃)	P(GPa)
12MTZ6	M₁	0.46	0.55	0.23	0.21	0.43	900	1.33
		0.49	0.55	0.23	0.23	0.41	900	1.35
		0.46	0.55	0.23	0.22	0.42	900	1.38
		0.42	0.56	0.22	0.22	0.41	900	1.36
		0.44	0.56	0.25	0.19	0.44	900	1.31
12MTZ2	M₁	0.49	0.54	0.20	0.26	0.29	850	1.38
		0.42	0.57	0.19	0.25	0.32	850	1.33
		0.48	0.56	0.18	0.26	0.28	850	1.34
		0.44	0.56	0.19	0.25	0.28	850	1.38
		0.42	0.57	0.18	0.25	0.29	850	1.38
1403MJ2-6	M₁	0.48	0.54	0.29	0.18	0.41	800	1.22
		0.59	0.54	0.29	0.17	0.43	800	1.14
		0.55	0.54	0.28	0.18	0.43	800	1.14
1403FY1-2	M₁	0.55	0.57	0.23	0.21	0.57	750	0.92
		0.51	0.58	0.22	0.20	0.58	750	0.90
		0.56	0.57	0.23	0.21	0.56	750	0.92
注：所用温度值来自于表 9计算结果.

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表 11 石榴二辉麻粒岩中石榴子石-单斜辉石地质温度计数据

Table 11. Calculated results using the garnrt-clinopyroxene geothermometer for the garnet two-pyroxene granulite

样品号		矿物对	T₁(℃)	T₂(℃)	T₃(℃)	P(GPa)	T₄(℃)
1310FY5-3 Grt+Cpx+Pl	M₁	8	845~913	820~892	831~902	1.5	773~844
1310FY5-3富钛角闪石周围Grt+Cpx+Opx+Pl交生体	M₂	5	730~776	677~728	723~771	1.2	692~712
07MJ4	M₁	5	913~942	874~908	886~916	1.2	881~916
注：T₁据Elllis and Green(1979)；T₂据Krogh(1988)；T₃据Powell(1985)；T₄据Ravna(2000a)；所用压力值来自于表 13计算结果.

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表 12 石榴二辉麻粒岩中单斜辉石-斜方辉石地质温度计数据

Table 12. Calculated results using the clinopyroxene-orthopyroxene geothermometer for the garnet two-pyroxene granulite

	Cpx aEn	Opx aEn	lnK_D	T(℃)	Cpx aEn	Opx aEn	lnK_d	P (GPa)	T (℃)
07MJ4	0.04	0.25	-1.87	878	0.11	0.91	-2.13	1.2	935
	0.04	0.24	-1.75	898	0.11	0.88	-2.10	1.2	937
	0.04	0.25	-1.89	873	0.10	0.90	-2.20	1.2	909
	0.05	0.23	-1.57	926	0.13	0.87	-1.89	1.2	982
	0.04	0.24	-1.83	882	0.11	0.88	-2.11	1.2	935
1310FY5-3富钛角闪石周围Grt+Cpx+Opx+Pl交生体	0.05	0.31	-1.83	908	0.10	0.89	-2.23	1.2	930
	0.04	0.33	-2.21	849	0.06	0.86	-2.59	1.2	832
	0.04	0.35	-2.06	887	0.08	0.86	-2.32	1.2	910
	0.05	0.31	-1.72	932	0.11	0.87	-2.08	1.2	957
	0.05	0.33	-1.93	900	0.09	0.88	-2.24	1.2	909
注：所用压力值来自于表 13计算结果.

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表 13 石榴二辉麻粒岩中石榴子石-单斜辉石-斜长石-石英和石榴子石-斜方辉石-斜长石-石英地质压力计数据

Table 13. Calculated results using the garnrt-clinopyroxene-plagioclase-quartz and garnrt-orthopyroxene-plagioclase-quartz geobarometer for the garnet two-pyroxene granulite

样品号	变质阶段	Cpx		Grt		Pl
样品号	变质阶段	a_Di	X_Fe	X_Mg	X_Ca	X_An	T(℃)	P(GPa)
1310FY5-3 Grt+Cpx+Pl	M₁	0.48	0.47	0.18	0.35	0.44	850	1.51
		0.45	0.45	0.18	0.37	0.50	850	1.52
		0.47	0.46	0.17	0.37	0.50	850	1.49
1310FY5-3富钛角闪石周围Grt+Cpx+Pl交生体	M₂	0.44	0.61	0.22	0.17	0.38	750	1.13
		0.45	0.59	0.24	0.17	0.39	750	1.13
		0.46	0.58	0.25	0.17	0.38	750	1.20
		Opx		Grt		Pl
		a_Di	X_Fe	X_Mg	X_Ca	X_An	T(℃)	P(GPa)
1310FY5-3富钛角闪石周围Grt+Cpx+Opx+Pl	M₂	0.65	0.56	0.27	0.16	0.39	900	1.20
		0.66	0.58	0.24	0.16	0.37	900	1.13
		0.67	0.56	0.27	0.17	0.39	900	1.18
		0.65	0.58	0.25	0.16	0.36	900	1.17
		0.65	0.58	0.24	0.17	0.35	900	1.17
07MJ4	M₁	0.59	0.57	0.24	0.17	0.36	900	1.23
		0.58	0.57	0.24	0.17	0.37	900	1.23
		0.57	0.56	0.24	0.18	0.36	900	1.22
		0.58	0.57	0.23	0.18	0.38	900	1.25
		0.57	0.58	0.23	0.17	0.37	900	1.29
注：所用温度值来自于表 11和12计算结果.

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表 14 石榴斜长角闪岩(07FY01)和石榴二辉麻粒岩(07SMJ4)LA-ICP-MS锆石U-Pb数据

Table 14. LA-ICP-MS zircon U-Pb data for sample garnet amphibolite (07FY01) and garnet two-pyroxene granulite (07SMJ4)

点号	U(10^-6)	Th(10^-6)	Th/U	²⁰⁶Pb^*(10^-6)	²⁰⁷Pb^/²⁰⁶Pb^	±1σ	²⁰⁷Pb^*/²³⁵U	±1σ	²⁰⁶Pb^*/²³⁸U	±1σ	年龄(Ma)
点号	U(10^-6)	Th(10^-6)	Th/U	²⁰⁶Pb^*(10^-6)	²⁰⁷Pb^/²⁰⁶Pb^	±1σ	²⁰⁷Pb^*/²³⁵U	±1σ	²⁰⁶Pb^*/²³⁸U	±1σ	²⁰⁷Pb^/²⁰⁶Pb^	±1σ	²⁰⁶Pb^*/²³⁸U	±1σ
样品07FY01
1.1	17	2	0.14	6	0.124	0.010	5.683	0.462	0.332	0.011	2 016	132	1 848	53
2.1	73	21	0.29	25	0.107	0.006	4.990	0.272	0.339	0.008	1 742	91	1 884	36
3.1	49	13	0.26	17	0.123	0.007	5.906	0.348	0.349	0.008	1 997	96	1 930	40
4.1	36	11	0.31	12	0.106	0.007	4.888	0.323	0.336	0.008	1 725	110	1 866	40
5.1	59	18	0.30	20	0.107	0.006	4.915	0.299	0.334	0.008	1 744	101	1 858	37
6.1	93	22	0.24	32	0.114	0.006	5.406	0.283	0.345	0.007	1 860	85	1 909	35
7.1	11	1	0.13	4	0.108	0.009	5.072	0.450	0.340	0.012	1 770	148	1 886	56
8.1	10	1	0.13	3	0.126	0.011	6.010	0.526	0.346	0.012	2 044	151	1 914	59
9.1	57	15	0.27	19	0.112	0.006	5.158	0.283	0.335	0.007	1 825	92	1 864	36
10.1	12	2	0.16	4	0.114	0.009	5.152	0.431	0.328	0.012	1 864	138	1 828	58
11.1	33	17	0.53	11	0.112	0.007	5.188	0.324	0.336	0.008	1 830	105	1 869	39
12.1	10	2	0.16	3	0.098	0.009	4.828	0.454	0.358	0.013	1 581	163	1 974	62
13.1	102	30	0.29	33	0.109	0.005	4.918	0.247	0.326	0.007	1 787	83	1 821	32
14.1	82	22	0.26	28	0.105	0.005	4.925	0.256	0.339	0.007	1 719	86	1 883	34
15.1	73	20	0.27	25	0.113	0.006	5.316	0.287	0.343	0.007	1 840	91	1 900	34
16.1	28	9	0.31	9	0.120	0.007	5.679	0.357	0.344	0.009	1 951	104	1 907	41
17.1	64	24	0.38	22	0.108	0.006	5.138	0.282	0.344	0.008	1 770	92	1 908	37
18.1	53	10	0.18	17	0.101	0.006	4.666	0.269	0.334	0.008	1 651	97	1 856	37
19.1	11	1	0.11	4	0.110	0.011	5.412	0.501	0.358	0.012	1 793	171	1 973	57
20.1	23	7	0.31	8	0.124	0.008	5.700	0.363	0.333	0.009	2 017	107	1 852	42
21.1	21	6	0.31	7	0.120	0.008	5.634	0.391	0.341	0.009	1 953	118	1 892	44
22.1	69	22	0.32	22	0.110	0.006	4.953	0.288	0.327	0.008	1 795	99	1 826	37
23.1	41	10	0.23	15	0.109	0.007	5.284	0.333	0.351	0.008	1 788	109	1 937	40
样品07MJ4
1.1	8	2	0.22	3	0.129	0.009	5.761	0.560	0.324	0.011	2 082	120	1 811	51
2.1	6	1	0.20	2	0.151	0.010	6.823	0.707	0.327	0.014	2 362	114	1 823	68
3.1	31	12	0.37	10	0.111	0.005	5.246	0.346	0.343	0.008	1 817	82	1 899	39
4.1	53	12	0.23	17	0.110	0.005	5.043	0.309	0.332	0.007	1 804	79	1 847	32
5.1	12	3	0.26	4	0.116	0.007	5.311	0.440	0.333	0.010	1 891	101	1 853	49
6.1	15	5	0.30	5	0.112	0.006	5.699	0.462	0.370	0.011	1 828	99	2 029	52
7.1	15	5	0.35	5	0.118	0.006	5.531	0.437	0.340	0.010	1 923	96	1 889	47
8.1	17	4	0.26	6	0.115	0.006	5.349	0.386	0.337	0.009	1 883	89	1 871	42
9.1	843	391	0.46	265	0.108	0.004	4.728	0.248	0.318	0.005	1 764	68	1 779	26
10.1	130	46	0.36	42	0.110	0.004	5.008	0.282	0.330	0.006	1 802	72	1 837	30
11.1	43	9	0.22	14	0.112	0.005	5.044	0.306	0.326	0.007	1 834	76	1 820	34
12.1	45	10	0.24	15	0.114	0.005	5.579	0.349	0.356	0.008	1 859	78	1 963	38
13.1	15	7	0.47	5	0.122	0.007	5.315	0.421	0.316	0.009	1 984	96	1 772	45
14.1	11	4	0.38	4	0.110	0.006	5.139	0.418	0.338	0.011	1 804	98	1 877	52
15.1	35	10	0.28	11	0.118	0.005	5.406	0.341	0.332	0.007	1 930	79	1 846	34
16.1	11	4	0.36	3	0.119	0.009	5.155	0.533	0.315	0.011	1 936	131	1 766	52
17.1	187	87	0.47	61	0.109	0.004	4.985	0.271	0.331	0.006	1 789	71	1 841	28
18.1	147	64	0.44	48	0.106	0.004	4.823	0.264	0.330	0.006	1 733	71	1 838	28
19.1	23	7	0.29	8	0.111	0.005	5.044	0.329	0.328	0.007	1 823	82	1 830	36
20.1	20	6	0.33	6	0.109	0.006	5.087	0.384	0.337	0.009	1 790	95	1 872	43
21.1	32	13	0.40	11	0.114	0.005	5.279	0.356	0.337	0.008	1 857	84	1 873	38
22.1	16	5	0.30	5	0.113	0.006	5.227	0.400	0.336	0.010	1 843	94	1 870	46
23.1	232	98	0.42	75	0.105	0.004	4.794	0.261	0.332	0.006	1 712	71	1 846	29
24.1	36	17	0.46	12	0.115	0.005	5.411	0.352	0.342	0.008	1 873	82	1 898	36
25.1	33	9	0.28	11	0.119	0.005	5.553	0.363	0.338	0.008	1 943	80	1 878	38

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表 15 石榴斜长角闪岩(07FY01)和石榴二辉麻粒岩(07SMJ4)中锆石LA-ICP-MS微量元素(10^-6)

Table 15. LA-ICP-MS trace element (10^-6) analysis for zircon in sample garnet amphibolite (07FY01) and garnet two-pyroxene granulite (07SMJ4)

点号	Ti	Nb	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Hf	Ta	Pb	Th	U	Y	Th/U	δEu
07FY01
1.1	3.02	0.12	0.00	0.49	0.00	0.08	0.07	0.11	1.02	0.30	1.76	0.65	1.32	0.21	1.36	0.27	8 019.99	0.02	6.55	2.34	17.09	15.85	0.14	1.23
2.1	10.71	0.11	0.01	0.61	0.01	0.19	0.44	0.24	2.37	0.71	6.15	1.69	4.79	0.83	6.06	1.05	9 455.11	0.02	27.20	20.60	67.99	49.28	0.30	0.72
3.1	5.42	0.14	0.01	0.63	0.02	0.30	0.58	0.27	2.26	0.69	6.37	1.52	5.31	0.72	5.78	0.78	8 429.82	0.02	20.60	14.19	50.48	52.24	0.28	0.71
4.1	4.23	0.15	0.01	0.47	0.00	0.06	0.06	0.11	0.70	0.28	3.08	0.61	2.30	0.37	2.26	0.32	8 787.17	0.02	13.66	10.47	33.13	23.73	0.32	1.71
5.1	6.59	0.10	0.00	0.66	0.01	0.17	0.68	0.48	3.82	0.92	6.76	1.46	3.86	0.53	3.29	0.46	8 814.61	0.00	23.44	18.18	56.67	44.03	0.32	0.92
6.1	7.49	0.13	0.00	0.73	0.01	0.12	0.46	0.39	2.68	0.85	7.68	1.69	5.97	0.80	6.53	1.06	8 640.02	0.02	35.14	20.90	87.08	55.61	0.24	1.09
7.1	5.46	0.21	0.00	0.25	0.00	0.08	0.18	0.02	0.36	0.09	0.98	0.27	0.70	0.13	0.78	0.10	8 380.63	0.06	4.09	1.38	10.31	8.37	0.13	0.26
8.1	4.52	0.11	0.00	0.24	0.01	0.02	0.01	0.06	0.48	0.14	1.44	0.38	1.03	0.17	1.02	0.18	8 400.30	0.02	3.78	1.25	9.27	11.62	0.13	2.26
9.1	4.69	0.13	0.01	0.39	0.00	0.08	0.27	0.25	1.42	0.51	4.03	0.94	2.71	0.36	2.14	0.32	9 450.66	0.02	19.70	13.21	48.90	30.78	0.27	1.23
10.1	5.54	0.07	0.00	0.20	0.00	0.05	0.04	0.20	1.25	0.30	2.92	0.69	1.87	0.30	1.96	0.27	8 672.59	0.04	4.01	1.62	9.97	22.48	0.16	2.73
11.1	4.42	0.15	0.00	0.39	0.01	0.12	0.24	0.11	1.52	0.43	4.56	1.23	4.45	0.70	5.24	0.85	9 112.26	0.01	11.88	13.07	27.94	42.49	0.47	0.55
12.1	6.01	0.17	0.00	0.24	0.00	0.07	0.30	0.24	1.20	0.37	2.71	0.69	2.02	0.26	1.98	0.29	8 498.38	0.03	4.01	1.81	9.96	23.14	0.18	1.22
13.1	12.46	0.32	0.00	0.91	0.18	0.37	1.09	0.28	5.13	1.46	13.50	3.70	11.18	1.70	12.96	1.99	10 104.76	0.19	32.51	23.37	81.40	102.36	0.29	0.36
14.1	6.11	0.03	0.00	0.55	0.00	0.13	0.31	0.22	3.35	0.93	7.73	2.09	6.00	1.04	6.38	1.00	9 443.08	0.02	28.51	18.38	71.10	60.26	0.26	0.66
15.1	58.74	0.31	0.10	1.12	0.05	0.50	1.12	0.30	5.71	1.47	12.70	3.78	11.64	1.79	12.63	1.90	9 788.69	0.24	36.24	26.63	89.77	104.27	0.30	0.36
16.1	6.40	0.12	0.01	0.34	0.00	0.05	0.07	0.14	1.02	0.38	3.90	1.12	3.53	0.59	3.83	0.71	8 973.97	0.03	11.15	8.39	27.05	36.63	0.31	1.58
17.1	109.65	0.30	0.28	1.99	0.19	1.64	1.31	0.27	7.14	1.72	15.19	4.42	14.55	2.56	18.43	3.00	9 809.56	0.26	32.64	30.11	85.13	130.49	0.35	0.27
18.1	5.38	0.13	0.01	0.69	0.02	0.09	0.16	0.15	1.79	0.46	3.35	0.72	2.55	0.31	2.15	0.29	8 509.85	0.01	18.65	8.92	48.85	23.56	0.18	0.86
19.1	5.52	0.14	0.00	0.22	0.00	0.01	0.04	0.06	0.77	0.21	1.82	0.48	1.58	0.16	1.36	0.22	8 646.36	0.03	4.16	1.09	10.01	14.42	0.11	0.97
20.1	6.03	0.11	0.00	0.35	0.01	0.09	0.19	0.19	1.45	0.43	5.06	1.52	5.41	0.88	6.75	1.06	9 508.28	0.03	8.60	6.53	21.22	50.14	0.31	1.12
21.1	5.70	0.12	0.00	0.32	0.01	0.10	0.16	0.20	1.28	0.54	5.14	1.50	4.62	0.66	5.40	0.80	9 524.80	0.05	8.99	7.71	21.37	46.17	0.36	1.36
22.1	52.90	0.09	0.01	0.62	0.00	0.14	0.32	0.13	1.98	0.52	4.69	1.30	3.97	0.56	5.89	0.76	9 533.47	0.02	21.69	17.49	57.64	40.44	0.30	0.49
23.1	4.45	0.05	0.01	0.49	0.01	0.11	0.47	0.17	1.78	0.53	4.67	1.23	3.51	0.56	3.74	0.56	8 944.21	0.01	19.73	11.42	48.52	36.12	0.24	0.56
Spot	Ti	Nb	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Hf	Ta	Pb	Th	U	Y	Th/U	Eu^*
07MJ4
1.1	4.22	0.20	0.00	0.47	0.01	0.06	0.18	0.08	0.46	0.33	3.10	1.14	3.96	0.71	5.77	0.89	7 677.69	0.04	3.06	1.78	8.00	38.30	0.22	0.81
2.1	6.05	0.12	0.01	0.27	0.00	0.00	0.07	0.03	0.38	0.14	1.60	0.59	2.10	0.36	3.00	0.44	8 028.25	0.02	2.08	1.09	5.38	18.55	0.20	0.60
3.1	8.02	0.11	0.01	3.28	0.02	0.41	0.47	0.27	2.11	0.49	4.02	0.91	2.83	0.36	2.35	0.39	7 447.86	0.05	12.52	11.44	30.80	28.69	0.37	0.83
4.1	6.94	0.10	0.00	2.43	0.01	0.01	0.18	0.18	1.56	0.48	5.17	1.27	3.83	0.65	3.58	0.58	8 139.66	0.02	19.50	11.48	49.70	39.86	0.23	1.02
5.1	5.83	0.15	0.00	0.49	0.00	0.02	0.25	0.21	1.58	0.58	6.70	2.01	6.92	1.14	9.28	1.55	8 672.44	0.04	4.59	3.02	11.35	68.28	0.27	1.02
6.1	7.68	0.18	0.00	1.20	0.01	0.08	0.10	0.15	1.50	0.38	3.98	1.06	3.25	0.59	4.57	0.71	7 689.97	0.04	7.04	5.19	16.90	34.33	0.31	1.23
7.1	9.36	0.14	0.01	0.61	0.01	0.00	0.24	0.13	1.20	0.53	6.41	2.53	9.86	1.74	14.26	2.50	8 675.34	0.02	5.61	4.64	13.70	79.76	0.34	0.74
8.1	1.92	0.17	0.00	0.48	0.00	0.01	0.06	0.08	0.39	0.20	2.51	1.06	4.08	0.71	5.99	1.10	8 828.53	0.06	6.45	4.31	16.36	34.44	0.26	1.54
9.1	3.37	0.13	0.01	2.51	0.08	1.86	3.15	1.41	12.87	2.75	19.89	4.57	12.05	1.52	10.23	1.52	7 541.33	0.08	286.32	364.60	708.35	137.35	0.51	0.68
10.1	7.16	0.22	0.00	1.19	0.02	0.17	0.44	0.11	2.14	0.78	8.16	3.12	12.92	2.55	23.71	4.45	7 200.69	0.16	49.47	44.52	124.60	97.75	0.36	0.34
11.1	7.85	0.07	0.00	3.07	0.01	0.08	0.49	0.28	2.29	0.71	5.81	1.22	3.66	0.49	3.29	0.45	7 790.97	0.02	15.52	9.06	40.45	38.41	0.22	0.80
12.1	3.94	0.15	0.00	1.83	0.00	0.11	0.18	0.11	1.54	0.43	4.26	1.21	3.75	0.56	4.08	0.64	8 128.50	0.03	18.57	11.09	45.84	36.93	0.24	0.61
13.1	9.39	0.11	0.00	1.52	0.00	0.06	0.32	0.11	0.94	0.28	2.99	0.95	3.18	0.53	3.61	0.58	8 452.57	0.05	5.63	6.57	14.05	30.05	0.47	0.61
14.1	8.39	0.13	0.01	1.26	0.01	0.11	0.17	0.11	0.97	0.36	3.70	1.18	3.94	0.64	5.33	0.88	8 611.00	0.04	4.25	3.98	10.43	37.53	0.38	0.84
15.1	6.91	0.09	0.00	3.02	0.01	0.20	0.74	0.46	3.60	1.01	8.34	1.99	4.46	0.70	4.85	0.67	7 627.96	0.02	12.90	9.52	32.59	56.54	0.29	0.86
16.1	10.39	0.13	0.07	0.73	0.03	0.26	0.22	0.20	1.78	0.64	6.41	2.21	7.88	1.43	11.59	1.98	8 616.69	0.03	4.06	3.72	10.24	69.08	0.36	0.98
17.1	7.48	0.35	0.00	1.43	0.01	0.36	0.47	0.28	3.11	1.07	10.80	3.46	13.23	2.44	21.12	3.97	7 267.18	0.20	73.92	86.08	181.16	108.79	0.48	0.69
18.1	6.89	0.26	0.00	1.17	0.02	0.22	0.81	0.26	3.64	1.15	11.51	3.82	14.76	2.54	23.26	4.40	6 902.06	0.15	56.26	61.94	139.87	119.11	0.44	0.47
19.1	8.18	0.17	0.00	1.32	0.00	0.05	0.23	0.10	1.37	0.58	6.21	1.88	7.36	1.26	9.49	1.65	8 286.46	0.08	8.55	6.50	21.83	65.74	0.30	0.57
20.1	2.45	0.20	0.02	0.72	0.00	0.00	0.07	0.13	0.51	0.30	3.53	1.21	5.19	0.95	8.62	1.38	8 443.06	0.07	7.50	5.98	18.48	43.87	0.32	2.07
21.1	7.97	0.11	0.00	1.45	0.02	0.12	0.39	0.47	3.29	1.15	10.49	2.98	8.48	1.21	8.59	1.33	8 077.99	0.03	11.91	11.35	29.16	82.65	0.39	1.25
22.1	7.30	0.19	0.00	0.72	0.00	0.11	0.11	0.28	2.11	0.79	9.87	3.84	15.47	2.84	24.81	4.41	8 500.78	0.06	5.99	4.58	14.86	122.02	0.31	1.73
23.1	5.58	0.30	0.00	1.35	0.01	0.25	0.31	0.14	1.58	0.51	5.26	1.68	5.58	1.05	7.78	1.44	7 533.90	0.21	90.29	97.21	224.38	49.24	0.43	0.61
24.1	7.97	0.10	0.00	2.89	0.01	0.51	1.43	0.93	5.61	1.53	11.32	2.67	6.96	1.07	7.42	1.23	7 166.62	0.01	15.31	18.37	36.51	77.53	0.50	1.01
25.1	9.26	0.08	0.01	3.36	0.03	0.56	1.33	0.70	5.02	1.09	8.32	2.03	6.12	0.88	6.55	1.09	7 168.28	0.02	12.35	8.34	30.96	60.76	0.27	0.83
注：δEu=Eu_N/(Sm_N·Gd_N)^1/2.

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