胶东大柳行地区中生代花岗岩的地球化学、锆石U-Pb年龄、Lu-Hf同位素特征及其构造意义

赵智华; 邵玉宝; 纪旭波; 王江波; 黄兴龙; 王勇军; 王鹏; 戚树发; 崔煜烽; 黄鑫; 路长勇; 宋宇; 李秀章

doi:10.19509/j.cnki.dzkq.tb20230693

胶东大柳行地区中生代花岗岩的地球化学、锆石U-Pb年龄、Lu-Hf同位素特征及其构造意义

doi: 10.19509/j.cnki.dzkq.tb20230693

1 .
山东省煤田地质规划勘察研究院济南市院士工作站，济南 250104
2 .
山东恒邦冶炼股份有限公司，山东烟台 264000
3 .
烟台市自然资源和规划局，山东烟台 264003
4 .
山东省地质调查院，济南 250014

基金项目: 山东省自然科学基金项目“胶东栖霞马家窑及杨家夼金矿床地质特征及成矿作用：年代学及微区地球化学制约”（ZR2023QD172）；山东省自然科学基金项目“胶东栖霞−蓬莱成矿带典型金矿床成矿机制：矿物微区地球化学制约”（ZR2020MD031）；山东省地勘基金项目“山东省栖霞−蓬莱成矿带黑岚沟−大柳行金矿田深部成矿预测”（鲁勘字（2018）15号）；山东省自然科学基金项目“沂沭断裂带全新世断层活动特征及其构造意义”（ZR2020MD039）；山东省煤用地质局科研专项（MTDZKY-2024-49）

详细信息

作者简介:
赵智华：E-mail：zzh0505@foxmail.com

通讯作者:
E-mail：lixiuzhang4117@126.com

中图分类号: P534.5；P597.3
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- 文章访问数: 324
- PDF下载量: 30
- 被引次数: 0
出版历程
- 收稿日期: 2023-12-14
- 录用日期: 2024-03-15
- 修回日期: 2024-03-11
- 网络出版日期: 2024-03-29

Geochemistry, zircon U-Pb age and Lu-Hf isotopic characteristics of Mesozoic granites in Daliuhang, Jiaodong area and their tectonic significance

1 .
Ji'nan Academician Workstation, Shandong Coalfield Geological Planning Investigation Institute, Ji'nan 250104, China
2 .
Shandong Humon Smelting Co., Ltd., Yantai Shandong 264000, China
3 .
Yantai Natural Resources and Planning Bureau, Yantai Shandong 264003, China
4 .
Geological Survey Institute of Shandong Province, Ji'nan 250014, China

More Information

Author Bio:
E-mail：zzh0505@foxmail.com

Corresponding author: E-mail：lixiuzhang4117@126.com

摘要

摘要:
为了确定胶东大柳行地区中生代花岗岩岩石类型、成岩时代及其形成构造背景，探讨其与金矿成矿的关系，选取位于胶东栖霞−蓬莱金成矿带北部的中生代燕山期玲珑型花岗岩（齐家沟二长花岗岩）和郭家岭型花岗岩（崮寺店二长花岗岩），开展了地球化学、锆石U-Pb定年及Lu-Hf同位素研究。结果表明，齐家沟二长花岗岩锆石U-Pb年龄为（172.8±1.5） Ma，锆石的εHf(t)值为−27.7～−20.3。崮寺店二长花岗岩锆石U-Pb年龄为（127.3±0.8） Ma，锆石的εHf(t)值为−15.7～−13.4，其花岗岩的⁸⁷Sr/⁸⁶Sr比值为0.710704～0.711223，εNd (t)变化范围为−16.8～−11.3。齐家沟二长花岗岩源区为古老下地壳，主要为华北克拉通下地壳，岩浆源区可能混入了扬子克拉通地壳的成分。崮寺店二长花岗岩是由下地壳镁铁质岩石部分熔融作用形成的，在形成过程中有幔源成分的加入，成岩构造背景为伸展状态，这可能是由于太平洋板块的俯冲后撤导致的。崮寺店二长花岗岩的上述特征与胶东早白垩世金矿成矿特征具有较高的协调性，暗示崮寺店二长花岗岩可能与该区金矿成矿有关。
- 胶东大柳行地区 /
- 中生代 /
- 花岗岩 /
- 金矿 /
- 构造背景
Abstract: Objective
To determine the rock type, age and tectonic setting of Mesozoic granites in Daliuhang, Jiaodong area, and to explore the relationship between the granite and gold mineralization,
Methods
the Mesozoic Yanshanian Linglong-type granites (Qijiagou monzonitic granite) and Guojialing-type granites (Gusidian monzonitic granite), which were located in the north of Qixia-Penglai gold metallogenic belt in eastern Jiaodong area, are selected to analyze whole-rock geochemistry, U-Pb dating and Lu-Hf isotope of zircon.
Results
The results show that the U-Pb age of the zircon from Qijiagou monzonite is (172.8±1.5) Ma, with the εHf(t) values of the zircon ranging from −27.7 to −20.3. The zircon U-Pb age of Gusidian monzonitic granite is (127.3±0.8) Ma, with the εHf(t) values of zircon ranging from −15.7 to −13.4. The ⁸⁷Sr/⁸⁶Sr ratio of Gusidian monzonitic granite is 0.710704−0.711223, with the εNd (t) values ranging from −16.8 to −11.3.
Conclusion
The Qijiagou monzonitic granite is derived from the ancient lower crust, which is mainly from the North China Craton lower crust. The magma source of Qijiagou monzonitic granite may be mixed with the Yangtze Craton crust. The Gusidian monzonitic granite forms by partial melting of mafic rocks of lower crust, with mantle components added in the process. The diagenetic tectonic background was extensional, which may be caused by the subduction and retreatment of the Pacific plate. The Gusidian monzonitic granites have high coordination with the characteristics of Early Cretaceous gold mineralization in Jiaodong area, suggesting a genetic link between this granite and local gold mineralization in this area.
- Jiaodong Daliuhang area /
- Mesozoic /
- granite /
- gold deposit /
- tectonic setting

HTML全文

图 1 胶东地区区域地质及金矿床分布图^[36-39]

1. 第四系；2. 白垩系；3. 古元古界和新元古界；4. 含榴辉岩的新元古代花岗质片麻岩；5. 太古宙花岗−绿岩带；6. 白垩纪崂山型花岗岩；7. 白垩纪伟德山型花岗岩；8. 白垩纪郭家岭型花岗岩；9. 侏罗纪花岗岩类；10. 三叠纪花岗岩类；11. 整合/不整合地质界线；12. 断层；13. 蚀变岩型和网脉型金矿，石英脉型和硫化物石英脉型金矿，蚀变角砾岩型、蚀变砾岩型和层间滑脱拆离带型金矿；14. 采样点位置；15. 研究区域；16. 成矿小区；17. 地名；ME1. 胶西北成矿小区；ME2. 栖−蓬−福成矿小区；ME3. 牟−乳成矿小区；F1. 三山岛断裂；F2. 焦家断裂；F3. 招平断裂；F4. 西林−陡崖断裂；F5. 金牛山断裂

Figure 1. Regional geology and distribution of gold deposits in Jiaodong area

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图 2 齐家沟(a～c, g, h)与崮寺店(d～f, i, j)花岗岩镜下和手标本照片

a～f. 镜下特征；g～j. 手标本照片. Qtz. 石英；Pl. 斜长石；Kfs. 钾长石；Bt. 黑云母；Hb. 角闪石

Figure 2. Microscopic and handspecimen photos of granite from Qijiagou (a-c, g, h) and Gusidian (d-f, i, j)

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图 3 花岗岩岩性判别图解（据文献[41-44]）

Figure 3. Lithological identification diagrams of granite

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图 4 花岗岩原始地幔标准化微量元素蛛网图(a)和球粒陨石标准化稀土元素配分图(b)（标准化值据文献[45-46]）

LCC. 下地壳；UCC. 上地壳

Figure 4. Primitive mantle-normalized trace element diagrams (a) and chondrite-normalized REE patterns (b) for granite

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图 5 齐家沟花岗岩锆石典型CL照片(a)和U-Pb年龄谐和图(b)及加权平均年龄图(c)

Mean. 加权平均年龄；MSMD. 平均标准权重偏差；下同

Figure 5. Typical CL images (a), U-Pb concordia diagram (b) and weighted mean age (c) of zircons in Qijiagou granite

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图 6 崮寺店花岗岩锆石典型CL照片(a)和U-Pb年龄谐和图(b)及加权平均年龄图(c)

Figure 6. Typical CL images (a), U-Pb concordia diagram (b) and weighted mean age (c) of zircons in Gusidian granite

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图 7 锆石球粒陨石标准化稀土元素配分图（标准化值据文献[45]，热液锆石和岩浆锆石据文献[49]）

Figure 7. Chondrite-normalized REE patterns of zircon

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图 8 齐家沟及崮寺店花岗岩Sr/Y-w(Y)(a)、(La/Yb)_N-Yb_N (b)图解（底图据文献[50]）

Figure 8. Sr/Y-w(Y)(a)、(La/Yb)_N-Yb_N (b) diagrams for Qijiagou and Gusidain granites

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图 9 花岗岩εNd(t)-⁸⁷Sr/⁸⁶Sr(a)^[56]和锆石εHf(t)-t(b)图解

DMM. 亏损地幔；EM1. 富集地幔1型端元；EM2. 富集地幔2型端元

Figure 9. εNd(t)-⁸⁷Sr/⁸⁶Sr diagram of granite (a) and εHf(t)-t diagram of zircon (b)

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图 10 崮寺店花岗岩角闪石偏光显微镜下照片(a)、BSE图像(b)和剖面元素变化(c)

Figure 10. Photograph of hornblende under microscope (a), BSE image of hornblende (b) and elements variation of hornblende profile (c) for Gusidian granite

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图 11 崮寺店花岗岩斜长石偏光显微镜下照片(a)、BSE图像(b)和剖面元素变化(c)

Figure 11. Photograph of plagioclase under microscope(a), BSE image of plagioclase (b) and elements variation of plagioclase profile (c) for Gusidian granite

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表 1 齐家沟、崮寺店花岗岩全岩主量元素、微量元素测试结果

Table 1. Major elements and trace elements test results of whole rock for Qijiagou and Gusidian granites

样品号		QJG-YT-2	QJG-YT-3	QJG-YT-8	LX1-D001	LX1-D002	LX1-D005-1	LX2-D007	LX2-D008	LX2-D008	LX2-D009	LX2-D010	LX2-D012
SiO₂	w_B/%	71.86	71.45	70.98	72.15	70.79	69.64	71.92	71.40	72.38	71.91	71.04	72.26
TiO₂		0.21	0.24	0.25	0.23	0.30	0.27	0.17	0.20	0.17	0.17	0.16	0.18
Al₂O₃		15.04	15.02	15.36	15.00	15.12	15.52	15.14	15.02	14.78	15.22	15.72	15.36
TFe₂O₃		2.00	2.04	2.48	1.58	1.99	1.88	1.72	1.95	1.63	1.62	1.57	1.76
MnO		0.04	0.05	0.05	0.03	0.03	0.03	0.04	0.04	0.04	0.04	0.04	0.04
CaO		2.49	2.20	2.53	2.17	2.49	2.38	2.06	2.13	1.91	1.98	1.93	2.07
Na₂O		3.78	3.80	3.87	4.21	4.29	4.33	3.96	3.92	3.98	3.88	3.81	3.97
K₂O		3.52	3.74	3.36	3.87	3.60	3.89	3.92	3.75	3.72	4.13	4.79	3.98
MgO		0.42	0.41	0.47	0.80	1.05	0.95	0.25	0.30	0.23	0.25	0.25	0.27
P₂O₅		0.07	0.07	0.09	0.08	0.10	0.09	0.04	0.05	0.04	0.04	0.04	0.04
损失量		0.64	0.55	0.68	0.49	0.53	0.79	0.60	0.63	0.44	0.63	0.45	0.36
总计		100.07	99.57	100.12	100.61	100.29	99.77	99.82	99.39	99.32	99.87	99.80	100.29
Mg^#		29.40	28.50	27.30	50.10	51.10	50.00
A/NK		1.50	1.46	1.53	1.35	1.38	1.37	1.41	1.43	1.40	1.40	1.37	1.42
A/CNK		1.03	1.05	1.05	0.99	0.98	0.99	1.04	1.04	1.05	1.05	1.05	1.05
Li	w_B/10⁻⁶	34.1	29.3	26.0	27.1	28.8	28.8	34.2	27.2	25.8	32.2	30.0	30.5
Be		1.59	1.83	1.67	2.45	2.55	2.95	2.51	2.32	2.52	2.23	2.24	2.17
Sc		1.51	0.94	2.00	2.50	3.61	3.11	1.06	0.92	0.60	0.92	0.86	0.82
V		7.51	6.77	7.72	23.50	30.10	29.60	2.60	3.19	2.87	2.35	2.34	2.76
Cr		1.45	1.28	1.56	15.40	21.50	20.60	0.72	0.64	0.62	0.67	0.55	0.37
Co		106.0	110.0	82.0	64.6	66.5	113.0	100.0	99.8	64.0	85.8	97.6	57.5
Ni		5.79	5.48	5.07	11.20	14.10	16.00	5.29	4.96	3.63	4.74	4.98	3.31
Cu		0.64	0.65	1.22	0.76	0.68	1.08	1.24	12.1	2.73	0.91	1.18	0.36
Zn		48.7	51.7	62.4	37.7	46.7	46.6	69.2	74.1	69.1	62.9	55.8	62.5
Ga		19.3	20.5	20.9	22.2	22.7	24.1	23.5	22.2	23.2	22.3	22.0	22.5
Rb		107	145	109	104	92.3	107	149	152	157	154	172	154
Sr		642	558	608	960	1016	1040	561	596	536	611	599	585
Y		6.58	7.80	7.57	5.74	6.83	6.67	8.70	10.30	9.57	7.76	9.83	8.79
Zr		143	150	133	125	122	129	170	167	155	152	160	144
Nb		9.00	12.20	13.30	4.61	5.20	5.49	21.80	19.40	19.20	15.90	16.80	17.10
Sn		1.66	1.18	1.45	0.77	0.99	0.86	1.47	1.73	1.59	1.59	1.54	1.50
Cs		1.30	1.75	1.21	2.49	1.64	2.55	2.20	3.09	3.42	2.64	2.61	2.56
Ba		1318	1579	1340	1242	1400	1577	1604	1802	1549	1832	2210	1652
La		28.8	35.5	34.8	27.5	36.6	35.7	43.7	46.1	37.7	45.5	45.3	41.5
Ce		51.6	64.0	62.2	50.7	66.9	64.3	75.3	79.1	65.5	78.8	78.4	71.1
Pr		5.22	6.49	6.23	5.42	7.18	6.76	7.65	8.01	6.71	7.86	7.79	7.24
Nd		19.0	23.5	22.4	20.1	26.3	25.0	25.6	26.5	22.2	26.1	25.4	24.3
Sm		3.13	3.71	3.36	3.09	3.85	3.94	3.81	3.88	3.29	3.77	3.60	3.62
Eu		0.91	1.03	0.98	0.80	1.03	1.01	0.99	1.06	0.91	1.06	1.04	1.02
Gd		2.07	2.60	2.32	2.09	2.48	2.52	2.69	2.96	2.60	2.59	2.66	2.62
Tb		0.25	0.30	0.27	0.25	0.28	0.28	0.33	0.36	0.37	0.34	0.36	0.32
Dy		1.27	1.60	1.42	1.15	1.32	1.29	1.62	1.80	1.79	1.52	1.79	1.60
Ho		0.24	0.28	0.25	0.18	0.23	0.23	0.26	0.32	0.27	0.24	0.28	0.24
Er		0.60	0.67	0.64	0.49	0.59	0.58	0.62	0.82	0.69	0.58	0.78	0.62
Tm		0.091	0.100	0.094	0.077	0.088	0.080	0.086	0.100	0.093	0.074	0.089	0.081
Yb		0.54	0.47	0.53	0.47	0.60	0.53	0.47	0.62	0.49	0.45	0.57	0.51
Lu		0.088	0.090	0.096	0.067	0.076	0.080	0.069	0.087	0.087	0.058	0.082	0.065
Hf		4.25	4.35	3.71	3.68	3.53	3.75	4.85	4.60	4.78	4.19	4.36	4.12
Ta		0.90	0.98	0.75	0.47	0.52	0.60	1.62	1.66	1.18	1.22	1.44	1.24
Tl		0.64	0.89	0.76	0.63	0.55	0.67	0.86	0.88	0.94	0.90	0.97	0.89
Pb	w_B/10⁻⁶	29.3	30.5	27.7	39.7	35.3	42.3	37.6	36.8	38.8	36.5	42.2	38.4
Th		6.52	7.87	7.39	8.13	11.20	10.60	9.01	9.31	8.92	9.31	8.78	8.78
U		1.58	1.79	1.58	1.32	3.80	2.66	2.44	3.18	1.69	1.43	2.39	1.44
Eu/Eu^*		1.03	0.96	1.02	0.91	0.95	0.91	0.90	0.92	0.92	0.98	0.98	0.97
Sr/Y		97.54	71.49	80.38	167.23	148.61	156.00	64.48	57.86	56.01	78.74	60.94	66.55
(La/Yb)_N		38.49	53.76	46.86	42.12	43.90	48.72	66.69	53.33	55.19	72.53	57.01	58.37
(Gd/Yb)_N		3.17	4.58	3.62	3.68	3.42	3.93	4.73	3.95	4.39	4.76	3.86	4.25

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表 2 角闪石电子探针分析数据

Table 2. Electron microprobe analytical data of hornblende w_B/%

序号	K₂O	CaO	TiO₂	F	Al₂O₃	Na₂O	MgO	SiO₂	FeO	MnO	Cr₂O₃	NiO	总计
1	1.26	11.51	0.78	0.32	9.04	1.45	9.89	43.45	18.71	0.48	0.02	0	96.74
2	1.25	11.64	0.73	0.35	8.96	1.52	9.91	43.29	18.83	0.46	0.04	0	96.82
3	1.26	11.61	0.71	0.37	8.96	1.34	9.90	43.92	18.82	0.51	0.04	0	97.28
4	1.19	11.59	0.74	0.35	8.85	1.53	10.13	43.98	18.49	0.43	0.01	0.02	97.14
5	1.25	11.90	0.67	0.35	9.00	1.45	10.10	43.77	18.59	0.47	0.07	0	97.46
6	1.31	11.90	0.30	0.42	9.63	1.70	9.85	42.89	19.54	0.51	0.10	0	97.98
7	1.28	11.85	0.28	0.42	9.57	1.50	9.69	43.35	19.44	0.46	0.04	0.05	97.76
8	1.51	11.56	0.43	0.39	10.19	1.64	9.38	42.55	19.63	0.46	0.08	0.05	97.69
9	1.47	11.69	0.43	0.44	10.38	1.65	9.36	42.50	19.54	0.48	0.06	0.07	97.86
10	1.44	11.53	0.41	0.40	10.24	1.53	9.40	42.99	19.65	0.48	0.09	0.05	98.04
11	1.35	11.60	0.66	0.39	9.58	1.69	9.49	42.96	18.65	0.50	0.22	0	96.94
12	1.29	11.58	0.68	0.40	9.29	1.59	9.87	43.59	18.67	0.45	0.23	0	97.47
13	1.29	11.64	0.66	0.36	9.70	1.51	9.53	42.80	18.89	0.48	0.26	0	96.98
14	1.13	11.44	0.69	0.33	9.68	1.80	9.58	43.17	19.18	0.49	0.21	0	97.55
15	1.15	11.68	0.64	0.39	9.66	1.61	9.86	43.41	18.75	0.47	0.22	0.06	97.73
16	1.34	11.54	0.75	0.41	9.78	1.61	9.59	43.06	18.87	0.52	0.23	0.07	97.59
17	1.31	11.60	0.71	0.34	9.90	1.64	9.42	42.69	19.18	0.46	0.21	0.01	97.32
18	1.43	11.75	0.64	0.38	9.86	1.43	9.53	42.68	19.29	0.50	0.26	0.03	97.61
19	1.28	11.56	0.71	0.37	9.55	1.52	9.59	43.10	18.62	0.48	0.23	0	96.85
20	1.30	11.67	0.71	0.35	9.59	1.58	9.69	43.24	18.89	0.51	0.26	0.08	97.72
21	1.20	11.67	0.72	0.35	9.46	1.60	9.71	43.17	18.72	0.45	0.20	0.06	97.15
22	1.22	11.63	0.82	0.38	9.45	1.63	9.78	43.24	18.50	0.50	0.16	0.02	97.16
23	1.26	11.68	0.81	0.34	9.72	1.62	9.59	42.72	18.92	0.47	0.24	0	97.22
24	1.35	11.71	0.82	0.33	9.58	1.49	9.68	43.07	18.67	0.46	0.18	0.07	97.25
25	1.36	11.53	0.75	0.39	9.56	1.59	9.65	43.19	18.67	0.49	0.15	0.09	97.25
26	1.37	11.69	0.77	0.35	9.62	1.51	9.58	43.36	18.78	0.5	0.15	0.02	97.54
27	1.39	11.78	0.77	0.35	9.49	1.48	9.65	43.28	18.66	0.49	0.22	0.06	97.46
28	1.29	11.74	0.72	0.38	9.59	1.57	9.92	43.44	19.03	0.45	0.20	0.05	98.22
29	1.39	11.81	0.51	0.44	9.77	1.45	9.78	43.71	19.31	0.48	0.15	0.01	98.62
30	1.85	11.23	0.49	0.38	10.20	1.31	9.82	43.17	19.32	0.44	0.16	0	98.20
31	1.28	11.72	0.70	0.35	9.15	1.58	9.82	43.87	18.51	0.46	0.11	0	97.40
32	1.33	11.81	0.61	0.38	9.44	1.51	9.77	43.46	19.03	0.49	0.06	0.04	97.76
33	1.39	11.83	0.55	0.40	9.73	1.42	9.54	43.03	19.28	0.45	0.04	0.02	97.52
34	1.33	11.64	0.65	0.36	9.42	1.52	9.73	43.21	18.96	0.51	0.03	0.01	97.23
35	1.38	11.67	0.70	0.35	9.35	1.56	9.59	43.20	18.68	0.44	0.04	0.02	96.83
36	1.31	11.68	0.69	0.31	9.29	1.52	9.75	43.12	18.82	0.50	0.03	0	96.89
37	1.34	11.69	0.71	0.38	9.25	1.58	9.82	43.70	18.65	0.48	0.02	0.02	97.48
38	1.36	11.56	0.68	0.34	9.37	1.55	9.86	43.45	18.93	0.47	0.04	0	97.45

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表 3 斜长石电子探针分析数据

Table 3. Electron microprobe analytical data of plagioclase w_B/%

序号	K₂O	CaO	TiO₂	Na₂O	Al₂O₃	SiO₂	MgO	MnO	FeO	总计
1	0.14	3.38	0	9.61	21.99	64.01	0	0	0.09	99.23
2	0.17	3.59	0	9.58	22.26	64.07	0	0.02	0.08	99.75
3	0.13	3.52	0.01	9.55	22.42	64.17	0	0	0.06	99.86
4	0.10	3.47	0.01	9.62	21.97	64.15	0	0	0.06	99.38
5	0.53	4.90	0.01	8.72	23.28	61.34	0	0	0.07	98.84
6	0.11	5.72	0	8.27	24.04	61.21	0	0	0.04	99.40
7	0.11	4.78	0	8.91	23.24	62.20	0.01	0	0.08	99.34
8	0.31	4.20	0	8.59	22.77	60.57	0.09	0	0.12	96.64
9	0.15	4.70	0	8.98	23.12	62.27	0	0.02	0.04	99.28
10	0.13	4.55	0	9.07	23.16	62.68	0	0	0.06	99.65
11	0.21	4.77	0	9.49	22.83	61.17	0.02	0.02	0.06	98.56
12	0.13	4.62	0	9.00	23.13	62.16	0.01	0.01	0.07	99.13
13	0.17	4.40	0	8.96	23.06	61.90	0.03	0	0.08	98.60
14	0.16	4.49	0	8.98	22.98	62.31	0.01	0	0.03	98.95
15	0.15	4.74	0	8.93	23.27	62.64	0	0	0.05	99.77
16	0.22	4.71	0	8.85	23.32	62.41	0	0	0.09	99.60
17	0.16	4.32	0	9.05	22.94	63.16	0.02	0	0.09	99.74
18	0.18	4.66	0	8.95	22.99	62.34	0	0.02	0.1	99.23
19	0.16	4.72	0	8.93	23.24	62.39	0.01	0.01	0.09	99.54
20	0.23	4.72	0	8.87	23.11	62.70	0.01	0	0.05	99.68

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表 4 齐家沟及崮寺店花岗岩锆石LA-ICP-MS U-Pb年龄分析结果

Table 4. LA-ICP-MS zircon U-Pb analytical results for Qijiagou and Gusidian granites

点号	Th	U	同位素比值			年龄/Ma
点号	w_B/10⁻⁶		²⁰⁷Pb/²⁰⁶Pb	²⁰⁷Pb/²³⁵U	²⁰⁶Pb/²³⁸U	²⁰⁷Pb/²⁰⁶Pb±1σ	²⁰⁷Pb/²³⁵U±1σ	²⁰⁶Pb/²³⁸U±1σ
QJGYT-1-01	187	1553	0.0496±0.0013	0.1863±0.0050	0.0268±0.0004	176±65	174±4	170±2
QJGYT-1-03	206	1125	0.0535±0.0015	0.2032±0.0053	0.0272±0.0003	350±61	188±4	173±2
QJGYT-1-04	83	853	0.0519±0.0015	0.1942±0.0053	0.0268±0.0003	280±65	180±4	171±2
QJGYT-1-05	143	1660	0.0506±0.0012	0.1925±0.0045	0.0272±0.0003	220±56	179±4	173±2
QJGYT-1-06	137	719	0.0496±0.0018	0.1922±0.0067	0.0282±0.0006	172±85	179±6	179±4
QJGYT-1-07	103	904	0.0537±0.0016	0.2113±0.0060	0.0283±0.0004	367±67	195±5	180±3
QJGYT-1-08	105	679	0.0502±0.0017	0.1872±0.0062	0.0268±0.0003	211±78	174±5	171±2
QJGYT-1-09	193	905	0.0513±0.0015	0.2012±0.0058	0.0282±0.0004	254±65	186±5	179±2
QJGYT-1-10	246	1538	0.0513±0.0013	0.1918±0.0047	0.0268±0.0003	254±57	178±4	171±2
QJGYT-1-11	153	5526	0.0504±0.0010	0.1937±0.0039	0.0276±0.0003	217±46	180±3	176±2
QJGYT-1-12	142	1546	0.0488±0.0012	0.1811±0.0045	0.0267±0.0003	200±59	169±4	170±2
QJGYT-1-13	179	1460	0.0499±0.0011	0.1880±0.004 4	0.0271±0.0003	191±21	175±4	172±2
QJGYT-1-14	247	1137	0.0501±0.0013	0.1867±0.0051	0.0268±0.0003	211±31	174±4	171±2
QJGYT-1-15	289	1288	0.0499±0.0013	0.1848±0.0047	0.0267±0.0003	191±59	172±4	170±2
QJGYT-1-16	356	1322	0.0497±0.0014	0.1906±0.0054	0.0277±0.0003	183±69	177±5	176±2
QJGYT-1-17	153	1670	0.0516±0.0013	0.1912±0.0051	0.0267±0.0003	333±59	178±4	170±2
QJGYT-1-18	124	1219	0.0488±0.0015	0.1795±0.0055	0.0266±0.0003	200±70	168±5	169±2
QJGYT-1-19	369	1615	0.0531±0.0014	0.1973±0.0057	0.0267±0.0003	345±61	183±5	170±2
QJGYT-1-20	173	3170	0.0551±0.0023	0.2130±0.0080	0.0283±0.0003	417±94	196±7	180±2
QJGYT-1-21	80	754	0.0485±0.0014	0.1817±0.0054	0.0271±0.0003	124±69	169±5	172±2
QJGYT-1-22	452	1631	0.049±0.0012	0.1885±0.0046	0.0277±0.0003	146±56	175±4	176±2
LX1-D005-2-01	187	644	0.0502±0.0018	0.1384±0.0048	0.0197±0.0003	211±85	132±4	126±2
LX1-D005-2-02	10	23	0.0512±0.0079	0.16±0.0197	0.0238±0.0007	254±318	151±17	152±4
LX1-D005-2-04	125	201	0.1666±0.0034	11.2785±0.2242	0.4822±0.0062	2524±34	2546±19	2537±27
LX1-D005-2-05	232	726	0.0486±0.0015	0.138±0.0044	0.0202±0.0003	128±72	131±4	129±2
LX1-D005-2-06	157	471	0.0513±0.0019	0.1435±0.0051	0.0201±0.0003	254±87	136±5	128±2
LX1-D005-2-07	236	402	0.05±0.0019	0.1383±0.0052	0.0198±0.0003	195±87	132±5	126±2
LX1-D005-2-08	207	352	0.0523±0.0023	0.1452±0.0059	0.02±0.0003	298±100	138±5	128±2
LX1-D005-2-09	190	456	0.0495±0.0023	0.1406±0.0054	0.0203±0.0003	172±107	134±5	129±2
LX1-D005-2-10	182	307	0.0511±0.0022	0.164±0.0068	0.023±0.0004	256±100	154±6	147±2
LX1-D005-2-11	303	644	0.0483±0.0017	0.1393±0.0047	0.0206±0.0003	122±82	132±4	132±2
LX1-D005-2-12	255	414	0.0482±0.002	0.1337±0.0058	0.0198±0.0004	122±100	127±5	126±2
LX1-D005-2-13	160	305	0.0516±0.0023	0.1425±0.006	0.0199±0.0003	265±101	135±5	127±2
LX1-D005-2-14	168	584	0.0504±0.0022	0.1373±0.0055	0.0195±0.0003	213±100	131±5	125±2
LX1-D005-2-15	276	606	0.0512±0.0017	0.1401±0.0045	0.0196±0.0003	256±78	133±4	125±2
LX1-D005-2-16	345	939	0.049±0.0015	0.1357±0.004	0.0197±0.0003	150±70	129±4	126±2
LX1-D005-2-17	220	549	0.0504±0.0018	0.1406±0.0047	0.02±0.0003	213±86	134±4	128±2
LX1-D005-2-18	270	521	0.0502±0.002	0.141±0.0054	0.0201±0.0003	206±86	134±5	128±2
LX1-D005-2-19	212	451	0.0461±0.0021	0.1318±0.0059	0.0204±0.0003	400±291	126±5	130±2
注：1σ. 1倍标准偏差，下同

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表 5 崮寺店花岗岩全岩Sr-Nd同位素分析结果

Table 5. Sr-Nd analytical results for Gusidian granite

送样编号	⁸⁷Sr/⁸⁶Sr	2σ	⁸⁴Sr/⁸⁶Sr	2σ	¹⁴³Nd/¹⁴⁴Nd	2σ	¹⁴⁵Nd/¹⁴⁴Nd	2σ	¹⁴⁷Sm/¹⁴⁴Nd	2σ	εNd(t)	T_2DM	T_1DM
GSD-1	0.710720	0.00005	0.0569	0.0002	0.511982	0.00003	0.348438	0.00002	0.104425	0.0004	−11.3	1838	1629
GSD-2	0.710726	0.00006	0.0573	0.0002	0.511756	0.00004	0.348435	0.00002	0.10778	0.0002	−15.8	2198	2003
GSD-3	0.710795	0.00005	0.0572	0.0002	0.511776	0.00005	0.348421	0.00003	0.109635	0.0002	−15.4	2169	2009
GSD-4	0.710836	0.00006	0.0575	0.0002	0.511773	0.00004	0.348446	0.00002	0.103882	0.0001	−15.4	2165	1908
GSD-5	0.711223	0.00005	0.0568	0.0002	0.511721	0.00004	0.348417	0.00003	0.130596	0.0005	−16.8	2283	2613
GSD-6	0.710739	0.00006	0.0569	0.0002	0.511759	0.00004	0.348385	0.00002	0.102936	0.0002	−15.6	2187	1912
GSD-7	0.710721	0.00006	0.0578	0.00003	0.511847	0.00004	0.348417	0.00002	0.112672	0.0002	−14.1	2061	1963
GSD-8	0.710704	0.00005	0.0578	0.00003	0.511905	0.00004	0.348402	0.00002	0.103901	0.0001	−12.8	1958	1727
GSD-9	0.710796	0.00005	0.0577	0.00003	0.511890	0.00004	0.348391	0.00002	0.107839	0.0002	−13.1	1986	1812
注：2σ. 2倍标准偏差；T_2DM. 亏损地幔二阶段模式年龄；T_1DM. 亏损地幔一阶段模式年龄；t. 年龄；下同

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表 6 齐家沟及崮寺店花岗岩锆石Hf同位素分析结果

Table 6. Zircon Hf isotope analytical results for Qijiagou and Gusidian granites

点号	¹⁷⁶Lu/¹⁷⁷Hf	1σ	¹⁷⁶Yb/¹⁷⁷Hf	1σ	¹⁷⁶Hf/¹⁷⁷Hf	1σ	年龄/Ma	εHf(0)	εHf(t)	T_1DM	T_2DM	f_Lu/Hf
QJGYT-1-01	0.001033	0.0000021	0.033712	0.000133	0.281887	0.000015	170	−31.3	−27.7	1918	3694	−0.97
QJGYT-1-03	0.001065	0.0000059	0.035737	0.000163	0.282012	0.000013	173	−26.9	−23.2	1747	3343	−0.97
QJGYT-1-04	0.001056	0.0000037	0.033631	0.000139	0.282059	0.000013	171	−25.2	−21.6	1681	3214	−0.97
QJGYT-1-05	0.001285	0.0000176	0.043678	0.000733	0.282095	0.000012	173	−23.9	−20.3	1641	3113	−0.96
QJGYT-1-06	0.000652	0.0000045	0.020928	0.000176	0.282056	0.000016	179	−25.3	−21.5	1668	3212	−0.98
QJGYT-1-07	0.001081	0.0000051	0.035119	0.000091	0.28192	0.000016	180	−30.1	−26.3	1875	3593	−0.97
QJGYT-1-08	0.0008	0.0000023	0.026124	0.000083	0.28206	0.000012	171	−25.2	−21.5	1669	3210	−0.98
QJGYT-1-09	0.000744	0.0000033	0.024988	0.00018	0.282033	0.000013	179	−26.1	−22.3	1704	3276	−0.98
QJGYT-1-10	0.001115	0.0000059	0.036864	0.000206	0.282001	0.000028	171	−27.3	−23.6	1765	3377	−0.97
QJGYT-1-11	0.001082	0.0000067	0.035849	0.000115	0.282058	0.000021	176	−25.3	−21.5	1685	3214	−0.97
QJGYT-1-12	0.001328	0.0000023	0.042811	0.000101	0.282098	0.00002	170	−23.8	−20.3	1639	3108	−0.96
QJGYT-1-13	0.000864	0.0000064	0.028647	0.000302	0.282002	0.000014	172	−27.2	−23.6	1752	3371	−0.97
QJGYT-1-14	0.000738	0.0000024	0.023763	0.000105	0.282034	0.000013	171	−26.1	−22.4	1702	3282	−0.98
QJGYT-1-15	0.001192	0.0000072	0.035984	0.000369	0.282009	0.000017	170	−27.0	−23.4	1757	3356	−0.96
QJGYT-1-16	0.001259	0.0000049	0.040555	0.000093	0.282025	0.000017	176	−26.4	−22.7	1738	3306	−0.96
QJGYT-1-17	0.00101	0.0000026	0.033296	0.000105	0.282035	0.000019	170	−26.1	−22.4	1713	3282	−0.97
QJGYT-1-18	0.00112	0.0000023	0.032995	0.000162	0.281996	0.00002	169	−27.5	−23.9	1772	3394	−0.97
QJGYT-1-19	0.001076	0.0000034	0.032613	0.000231	0.282062	0.000016	170	−25.1	−21.5	1678	3207	−0.97
QJGYT-1-20	0.001352	0.0000113	0.03837	0.000212	0.282057	0.000012	180	−25.3	−21.5	1698	3214	−0.96
QJGYT-1-21	0.001156	0.0000101	0.036895	0.000402	0.282046	0.000018	172	−25.7	−22.0	1705	3251	−0.97
QJGYT-1-22	0.001289	0.0000048	0.044307	0.000242	0.282048	0.000026	176	−25.6	−21.9	1707	3241	−0.96
LX1-D005-2-01	0.000346	0.0000028	0.008841	0.000049	0.282295	0.000012	126	−16.9	−14.1	1328	2593	−0.99
LX1-D005-2-05	0.000474	0.0000052	0.012201	0.000152	0.282298	0.000013	129	−16.8	−14.0	1328	2583	−0.99
LX1-D005-2-06	0.000508	0.0000012	0.013008	0.000059	0.282296	0.000013	128	−16.8	−14.1	1332	2588	−0.98
LX1-D005-2-07	0.000596	0.0000031	0.015937	0.000053	0.282299	0.000013	126	−16.7	−14.0	1331	2583	−0.98
LX1-D005-2-08	0.000693	0.0000022	0.019953	0.00012	0.282313	0.000014	128	−16.2	−13.5	1315	2543	−0.98
LX1-D005-2-09	0.000531	0.000008	0.015127	0.000047	0.282298	0.000011	129	−16.8	−14.0	1330	2583	−0.98
LX1-D005-2-11	0.000405	0.0000012	0.010669	0.00008	0.28225	0.000016	132	−18.5	−15.6	1392	2714	−0.99
LX1-D005-2-12	0.000501	0.0000012	0.012471	0.000107	0.282281	0.000012	126	−17.3	−14.6	1352	2632	−0.98
LX1-D005-2-13	0.000582	0.0000017	0.016195	0.000092	0.282316	0.000012	127	−16.1	−13.4	1306	2533	−0.98
LX1-D005-2-14	0.000532	0.0000014	0.014564	0.000041	0.282314	0.000012	125	−16.2	−13.5	1307	1662	−0.98
LX1-D005-2-15	0.000495	0.0000011	0.013085	0.000098	0.282258	0.000014	125	−18.2	−15.5	1384	1764	−0.99
LX1-D005-2-16	0.000539	0.0000076	0.014522	0.000135	0.282259	0.000012	126	−18.1	−15.4	1384	1761	−0.98
LX1-D005-2-17	0.0006	0.0000018	0.015607	0.000056	0.28225	0.000016	128	−18.5	−15.7	1399	1778	−0.98
LX1-D005-2-18	0.000393	0.0000026	0.010592	0.00007	0.282305	0.000012	128	−16.5	−13.7	1315	1677	−0.99
LX1-D005-2-19	0.00064	0.0000012	0.017028	0.000055	0.282264	0.000014	130	−18.0	−15.2	1381	1752	−0.98
注：‌f_Lu/Hf. 描述岩石或矿物中‌Lu/Hf比值‌相对于球粒陨石标准化值(CHUR)的偏差参数

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参考文献(77)

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