Late Neoarchean Crustal Evolution of Jishan Area in the Southern Margin of North China Craton: Insights from Geochronology and Geochemistry of Yezhai Granite

doi:10.19657/j.geoscience.1000-8527.2024.045

Abstract

Abstract:

The Songji area, located on the southern margin of the North China Craton, is characterized by the extensive presence of Neoarchean TTG gneiss and granite, making it a vital window for studying the early Precambrian geological evolution of the North China Craton. This study focuses on the newly identified Yezhai granite body within the Dengfeng Complex, employing geochronological and geochemical analyses to ascertain its formation age, genesis and tectonic evolution. The zircon U-Pb age of the Yezhai granite is determined to be (2,506±19) Ma, indicating its formation during the late Neoarchean period. Geochemical investigations reveal that the rock mass exhibits relatively high silica content (SiO₂=66.88%-74.14%) and is enriched in alkali elements (Na₂O=3.15%-4.09%;K₂O=2.06%-5.36%), demonstrating peraluminous calc-alkaline to high-potassium calc-alkaline characteristics (A/CNK=1.03-1.27). The rare earth elemental distribution pattern shows a right-leaning tendency, characterized by the enrichment of light rare earth elements (LREE) and depletion of heavy rare earth elements (HREE), along with a weak or inconspicuous positive europium anomaly (δEu=0.76-1.26). Trace element analysis indicates the enrichment of large ion lithophile elements (Rb, U, Th, K)and relative depletion of high field strength elements (Nb, Ti, P). The trace elements diagrams highlight features of high strontium (Sr) and low Yb and Y, with Sr/Y ratios ranging from 22.76 to 123.81, resembling the geochemical characteristics of adakite. The relationship among Nb, Y, Rb and Yb suggest similarities with island arc volcanic rocks. Overall, the findings indicate that the Yezhai granite body in Jishan area likely formed in an island arc setting, potentially resulting from the partial melting of an older, thickened lower crust in the Songji region.

Key words: monzonite granite, Precambrian, zircon U-Pb dating, Songji area, North China Craton, Precambrian

CLC Number:

GUO Xiaowei, YANG Yanwei, ZHANG Yu. Late Neoarchean Crustal Evolution of Jishan Area in the Southern Margin of North China Craton: Insights from Geochronology and Geochemistry of Yezhai Granite[J]. Geoscience, 2025, 39(01): 83-95.

Figures/Tables 9

References 55

[1]	周艳艳, 赵太平, 薛良伟, 等. 河南嵩山地区新太古代TTG质片麻岩的成因及其地质意义:来自岩石学、地球化学及同位素年代学的制约[J]. 岩石学报, 2009, 25(2):331-347.
[2]	邓晋福, 吴宗絮, 赵国春, 等. 华北地台前寒武花岗岩类、陆壳演化与克拉通形成[J]. 岩石学报, 1999, 15(2):190-198.
[3]	沈其韩, 耿元生, 宋会侠. 华北克拉通的组成及其变质演化[J]. 地球学报, 2016, 37(4):387-406.
[4]	沈其韩, 耿元生, 杨崇辉, 等. 我国早前寒武纪地层研究的主要新进展[J]. 地层学杂志, 2004, 28(4):289-296.
[5]	郭安林, 周鼎武. 河南中部太古宙登封花岗-绿岩带[J]. 河南地质, 1990, 8(2):31-37.
[6]	郭安林. 河南中部太古代登封花岗-绿岩地体中TTG质片麻岩与绿岩带关系及其地壳演化意义[J]. 地质论评, 1988, 34(2):123-131.
[7]	万渝生, 董春艳, 任鹏, 等. 华北克拉通太古宙TTG岩石的时空分布、组成特征及形成演化:综述[J]. 岩石学报, 2017, 33(5):1405-1419.
[8]	张国伟, 周鼎武, 张延安, 等. 早河南中部登封群-太华群构造序列对比[J]. 西北大学学报(前寒武纪地质专辑),1982:1-10.
[9]	郭安林. 河南中部箕山地区早元古宙安沟群绿岩带及其构造环境[J]. 西北大学学报, 1987, 17(1):24-33.
[10]	薛良为, 张天义, 徐莉, 等. 登封群的定年及其划分问题的探讨[J]. 地质学报, 2004, 25(2):229-234.
[11]	高山, 周炼, 凌文黎, 等. 华北克拉通南缘太古—元古宙界线安沟群火山岩的年龄及地球化学[J]. 地球科学, 2005, 30(3):259-263.
[12]	杨崇辉, 杜利林, 任留东, 等. 华北克拉通南缘安沟群的SHRIMP年龄及地层对比[J]. 岩石学报, 2009, 25(8):1853-1862.
[13]	万渝生, 刘敦一, 王世炎, 等. 登封地区早前寒武纪地壳演化—地球化学和锆石SHRIMP U-Pb年代学制约[J]. 地质学报, 2009, 83(7):982-999.
[14]	第五春荣. 华北克拉通南部太古宙大陆地壳的生长和演化[J]. 岩石学报, 2021, 37(2):317-340.
[15]	耿元生, 万渝生, 沈其韩. 华北克拉通早前寒武纪基性火山作用与地壳增生[J]. 地质学报, 2002, 76(2):199-208.
[16]	耿元生, 沈其韩, 任留东. 华北克拉通晚太古代末—古元古代初的岩浆事件及构造热体制[J]. 岩石学报, 2010, 26(7):1945-1966.
[17]	张瑞英, 孙勇. 华北克拉通南部早前寒武纪基底形成与演化[J]. 岩石学报, 2017, 33(10):3027-3041.
[18]	万渝生, 颉颃强, 董春艳, 等. 华北克拉通太古宙构造热事件时代及演化[J]. 地球科学, 2020, 45(9):3119-3160.
[19]	沈保丰, 骆辉. 华北陆台太古宙绿岩带金矿的成矿特征[J]. 华北地质矿产, 1994, 9(1):87-96.
[20]	劳子强, 王世炎. 河南省嵩山地区登封群研究的新进展[J]. 中国区域地质, 1999, 18(1):9-16.
[21]	河南省地质矿产局, 河南省区域地质志[M]. 北京: 地质出版社, 1989:12-20.
[22]	席文祥, 裴放. 全国地层多重划分对比研究:河南省岩石地层[M]. 武汉: 中国地质大学出版社, 1997:1-13.
[23]	ZHANG G W. Position and evolution of the Arebean crust in central Henan, China[J]. Precambrian Research. 1985:257-277.
[24]	孙枢, 帮国伟, 陈志明. 华北断块南部前寒武纪地质演化[M]. 北京: 冶金工业出版社, 1985:216.
[25]	ZONG K Q, KLEMD R, YUAN Y, et al. The assembly of Rodinia: The correlation of early Neoproterozoic (ca. 900 Ma) high-grade metamorphism and continental arc formation in the southern Beishan Orogen, southern Central Asian Orogenic Belt (CAOB)[J]. Precambrian Research, 2017, 290:32-48.
[26]	HU Z C, ZHANG W, LIU Y S, et al. “Wave” signal-smoothing and mercury-removing device for laser ablation quadrupole and multiple collector ICPMS analysis: application to lead isotope analysis[J]. Analytical Chemistry, 2015, 87(2):1152-1157.
[27]	BELOUSOVA E, GRIFFIN W, Belousova E, Griffin W, O’REILLY S Y, et al. Igneous zircon: Trace element composition as an indicator of source rock type[J]. Contributions to Mineralogy and Petrology, 2002, 143(5): 602-622.
[28]	HOSKIN P W O, IRELAND T R. Rare earth element chemistry of zircon and its use as a provenance indicator[J]. Geology, 2000, 28(7):627-630.
[29]	PECCERILLO R, TAYLOR S R. Geochemistry of eocene calc-alkaline volcanic rocks from the Kastamonu area,Northern Turkey. Contrib[J]. Mineral Petrology, 1976, 58:63-81.
[30]	MANIAR P D, PICCOLI P M. Tectonic discrimination of granitoids[J]. Geological Society of America Bulletin, 1989, 101(5): 635-643.
[31]	O’CONNOR J. A classification for quartz-rich igneous rock based on feldspar ratios[J]. US Geol Surv Prof Paper, 1965, 525:79-84.
[32]	CULLERS R L, GRAF J L, 李文达. 热液体系中的稀土元素[J]. 国外火山地质, 1987(1):20-23.
[33]	SUN S S, MCDONOUGH W F. Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes[M]//SAUNDERS A D,NORRY M J. Magmatism in the Ocean Basins. Geological Society,London, Special Publications, 1989, 42:313-345.
[34]	ZHANG J, ZHANG H F, LI L, et al. Neoarchean-Paleoproterozoic tectonic evolution of the southern margin of the North China Craton: Insights from geochemical and zircon U-Pb-Hf-O isotopic study of metavolcanic rocks in the Dengfeng complex[J]. Precambrian Research, 2018, 318:103-121.
[35]	KAY R W. Aleutian magnesian andesites: Melts from subducted Pacific Ocean crust[J]. Journal of Volcanology and Geothermal Research, 1978, 4(1/2):117-132.
[36]	DRUMMOND M S, DEFANT M J. A model for trondhjemite-tonalite-dacite genesis and crustal growth via slab melting: Archaean to modem comparisons[J]. Journal of Geophysical Research, 1990, 95: 21503-21521.
[37]	MARTIN H, MOYER J F. Seculaer changes in tonalite-trondhjemite-granodiorite composition as markers of the progressive cooling of the Earth[J]. Geology, 2002, 30(4):319-322.
[38]	SMITHIES R H. The Archaean tonalite-trondhjemite-granodorite(TTG) series is not an analogue of Cenozoic adakite[J]. Earth and Planetary Science Ltters, 2000, 182:115-125.
[39]	SMITHIES R H. Archaean boninte-like rocks in an intracratonic setting[J]. Earth and Planetary Science Ltters, 2002, 197(1/2):19-34.
[40]	ZHOU Y Y, ZHAO T P, WANG C Y, et al. Geochronology and geochemistry of 2.5 to 2.4 Ga granitic plutons from the southern margin of the North China Craton: Implications for a tectonic transition from arc to post-collisional setting[J]. Gondwana Research, 2011, 20:171-183.
[41]	HOU Z Q, GAO Y F, QU X M, et al. Origin of adakitic intrusives generated during mid-Miocene east-west extension in southern Tibet[J]. Earth Planetary Science Letter, 2004, 220 (1/2): 139-155.
[42]	BEA F, ARZAMASTSEV A, Montero P, et al. Anomalous alkaline rocks of Soustov,Kola: Evidence of mantle-derived metasomatic fluids affecting crustal materials[J]. Contributions to Mineralogy and Petrology, 2001, 140(5): 554-566.
[43]	邓晋福, 刘翠, 冯艳芳, 等. 高镁安山岩/闪长岩类(HMA)和镁安山岩/闪长岩类(MA):与洋俯冲作用相关的两类典型的火成岩类[J]. 中国地质, 2010, 37(4):1112-1118.
[44]	CONDIE K C. Geochemical changes in basalts and andesites across the Archaean-Proterozoic boundary:Identification and significance[J]. Lithosphere, 1989, 23:1-18.
[45]	翟明国. 华北克拉通构造演化[J]. 地质力学学报, 2019, 25(5):722-745.
[46]	伍家善, 耿元生, 沈其韩, 等. 中朝古大陆太古宙地质特征及构造演化[M]. 北京: 地质出版社, 1998.
[47]	耿元生, 沈其韩, 杜利林, 等. 区域变质作用与中国大陆地壳的形成与演化[J]. 岩石学报, 2016, 32(9):2579-2608.
[48]	沈其韩、钱祥麟. 中国太古宙地质体组成,阶段划分和演化[M]. 北京: 中国地质科学院院报, 1995(2):113-120.
[49]	吴鸣谦, 左梦璐, 张德会, 等. TTG岩套的成因及其形成环境[J]. 地质论评, 2014, 60(3):503-514.
[50]	张瑞英, 张成立, 孙勇. 华北克拉通-2.5Ga地壳再造事件:来自中条山TTG质片麻岩的证据[J]. 岩石学报, 2013, 29(7):2265-2280.
[51]	张瑞英, 张成立, 第五春荣, 等. 中条山前寒武纪花岗岩地球化学、年代学及其地质意义[J]. 岩石学报, 2012, 28(11):3559-3573.
[52]	SMITHIES R H, CHAMPION D C, CASSIDY K F. Formation of Earth’s early Archaean continental crust[J]. Precambrian Research, 2003, 127:89-101.
[53]	WU F Y, JAHN B M, WILDER S A, et al. Highly fractionated I-type granites in NE China (I): geochronology and petrogenesis[J]. Lithos, 2003, 66:241-273.
[54]	KUSKY T M, BRADLEY D C, HAEUSSLER P, et al. Controls on accretion of flysch and mélange belts at convergent margins:Evidence from the Chugach Bay thrust and Iceworm mélange,Chugach terrane,Alaska[J]. Tectonics, 1997, 16:855-878.
[55]	DIWU C R, WANG T Y, YAN J H. New evidence for Neoarchean(ca.2.7 Ga) crustal growth in the North China Craton[J]. Precambrian Research, 2020, 350:105921.

测点	含量(10^-6)			²³²Th/ ²³⁸U	同位素比值						年龄(Ma)
	^*Pb	Th	U		²⁰⁶Pb/²³⁸U		²⁰⁷Pb/²³⁵U		²⁰⁷Pb/²⁰⁶Pb		²⁰⁶Pb/²³⁸U		²⁰⁷Pb/²³⁵U		²⁰⁷Pb/²⁰⁶Pb
	^*Pb	Th	U		测值	1σ	测值	1σ	测值	1σ	测值	1σ	测值	1σ	测值	1σ
1	123.89	129	404	0.32	0.2321	0.0031	4.6012	0.0997	0.1434	0.0031	1345	16	1749	18	2269	37
2	133.67	130	361	0.36	0.2878	0.0044	6.0406	0.1411	0.1510	0.0028	1630	22	1982	20	2358	31
3	123.39	72	226	0.32	0.4470	0.0036	9.8305	0.1690	0.1586	0.0027	2382	16	2419	16	2440	28
4	129.61	97	514	0.19	0.1971	0.0019	3.9089	0.0797	0.1427	0.0025	1160	10	1616	17	2261	31
5	103.86	49	197	0.25	0.4425	0.0072	9.6157	0.2054	0.1573	0.0028	2362	32	2399	20	2428	30
6	119.43	322	341	0.94	0.2532	0.0037	5.3635	0.1190	0.1532	0.0029	1455	19	1879	19	2381	32
7	114.92	435	394	1.10	0.2140	0.0084	4.3595	0.1986	0.1464	0.0031	1250	45	1705	38	2306	37
8	119.08	66	230	0.29	0.4234	0.0036	9.7752	0.1790	0.1666	0.0029	2276	16	2414	17	2524	30
9	86.42	34	152	0.23	0.4651	0.0034	10.6077	0.2102	0.1647	0.0032	2462	15	2489	18	2506	32
10	99.77	47	227	0.21	0.3657	0.0029	8.2475	0.1573	0.1628	0.0031	2009	14	2259	17	2485	32
11	139.79	72	357	0.20	0.3293	0.0053	7.3239	0.1855	0.1603	0.0034	1835	26	2152	23	2459	30
12	113.37	135	369	0.37	0.2363	0.0031	4.7265	0.1064	0.1452	0.0034	1367	16	1772	19	2290	41
13	78.15	53	151	0.35	0.4262	0.0073	9.4510	0.2415	0.1598	0.0032	2289	33	2383	24	2453	33
14	121.02	102	344	0.30	0.2728	0.0023	5.8502	0.1063	0.1547	0.0028	1555	11	1954	16	2398	30
15	106.69	63	200	0.31	0.4327	0.0034	9.7926	0.1693	0.1634	0.0029	2318	15	2415	16	2491	30
16	130.76	60	595	0.10	0.2048	0.0076	4.3920	0.1919	0.1529	0.0028	1201	41	1711	36	2379	31
17	129.51	68	356	0.19	0.2982	0.0022	6.4728	0.1286	0.1565	0.0031	1683	11	2042	18	2418	34
18	95.84	52	168	0.31	0.4634	0.0034	10.6173	0.2118	0.1651	0.0033	2455	15	2490	19	2509	33
19	89.93	54	149	0.37	0.5010	0.0062	11.4744	0.2392	0.1652	0.0031	2618	27	2563	20	2510	33
20	131.19	94	385	0.24	0.2783	0.0065	6.0218	0.1849	0.1552	0.0028	1583	33	1979	27	2403	31
21	108.91	56	216	0.26	0.4272	0.0060	9.7276	0.2088	0.1640	0.0028	2293	27	2409	20	2498	25
22	122.86	94	247	0.38	0.3951	0.0030	8.8337	0.1504	0.1613	0.0028	2146	14	2321	16	2469	30
23	119.35	277	468	0.59	0.1759	0.0012	3.4277	0.0710	0.1405	0.0030	1045	7	1511	16	2235	36
24	143.64	141	355	0.40	0.3250	0.0028	7.1971	0.1320	0.1596	0.0028	1814	13	2136	16	2451	30

测点	含量(10^-6)			²³²Th/ ²³⁸U	同位素比值						年龄(Ma)
	^*Pb	Th	U		²⁰⁶Pb/²³⁸U		²⁰⁷Pb/²³⁵U		²⁰⁷Pb/²⁰⁶Pb		²⁰⁶Pb/²³⁸U		²⁰⁷Pb/²³⁵U		²⁰⁷Pb/²⁰⁶Pb
	^*Pb	Th	U		测值	1σ	测值	1σ	测值	1σ	测值	1σ	测值	1σ	测值	1σ
1	123.89	129	404	0.32	0.2321	0.0031	4.6012	0.0997	0.1434	0.0031	1345	16	1749	18	2269	37
2	133.67	130	361	0.36	0.2878	0.0044	6.0406	0.1411	0.1510	0.0028	1630	22	1982	20	2358	31
3	123.39	72	226	0.32	0.4470	0.0036	9.8305	0.1690	0.1586	0.0027	2382	16	2419	16	2440	28
4	129.61	97	514	0.19	0.1971	0.0019	3.9089	0.0797	0.1427	0.0025	1160	10	1616	17	2261	31
5	103.86	49	197	0.25	0.4425	0.0072	9.6157	0.2054	0.1573	0.0028	2362	32	2399	20	2428	30
6	119.43	322	341	0.94	0.2532	0.0037	5.3635	0.1190	0.1532	0.0029	1455	19	1879	19	2381	32
7	114.92	435	394	1.10	0.2140	0.0084	4.3595	0.1986	0.1464	0.0031	1250	45	1705	38	2306	37
8	119.08	66	230	0.29	0.4234	0.0036	9.7752	0.1790	0.1666	0.0029	2276	16	2414	17	2524	30
9	86.42	34	152	0.23	0.4651	0.0034	10.6077	0.2102	0.1647	0.0032	2462	15	2489	18	2506	32
10	99.77	47	227	0.21	0.3657	0.0029	8.2475	0.1573	0.1628	0.0031	2009	14	2259	17	2485	32
11	139.79	72	357	0.20	0.3293	0.0053	7.3239	0.1855	0.1603	0.0034	1835	26	2152	23	2459	30
12	113.37	135	369	0.37	0.2363	0.0031	4.7265	0.1064	0.1452	0.0034	1367	16	1772	19	2290	41
13	78.15	53	151	0.35	0.4262	0.0073	9.4510	0.2415	0.1598	0.0032	2289	33	2383	24	2453	33
14	121.02	102	344	0.30	0.2728	0.0023	5.8502	0.1063	0.1547	0.0028	1555	11	1954	16	2398	30
15	106.69	63	200	0.31	0.4327	0.0034	9.7926	0.1693	0.1634	0.0029	2318	15	2415	16	2491	30
16	130.76	60	595	0.10	0.2048	0.0076	4.3920	0.1919	0.1529	0.0028	1201	41	1711	36	2379	31
17	129.51	68	356	0.19	0.2982	0.0022	6.4728	0.1286	0.1565	0.0031	1683	11	2042	18	2418	34
18	95.84	52	168	0.31	0.4634	0.0034	10.6173	0.2118	0.1651	0.0033	2455	15	2490	19	2509	33
19	89.93	54	149	0.37	0.5010	0.0062	11.4744	0.2392	0.1652	0.0031	2618	27	2563	20	2510	33
20	131.19	94	385	0.24	0.2783	0.0065	6.0218	0.1849	0.1552	0.0028	1583	33	1979	27	2403	31
21	108.91	56	216	0.26	0.4272	0.0060	9.7276	0.2088	0.1640	0.0028	2293	27	2409	20	2498	25
22	122.86	94	247	0.38	0.3951	0.0030	8.8337	0.1504	0.1613	0.0028	2146	14	2321	16	2469	30
23	119.35	277	468	0.59	0.1759	0.0012	3.4277	0.0710	0.1405	0.0030	1045	7	1511	16	2235	36
24	143.64	141	355	0.40	0.3250	0.0028	7.1971	0.1320	0.1596	0.0028	1814	13	2136	16	2451	30

元素	奥长花岗岩	二长花岗岩					奥长花岗岩	英云闪长岩
元素	GS03	GS01	GS02	GS04	GS05	GS06	XD	WY
SiO₂	71.99	66.88	74.14	70.20	71.27	71.94	71.76	71.45
TiO₂	0.34	0.48	0.20	0.38	0.33	0.22	0.26	0.22
Al₂O₃	13.31	15.33	12.61	13.73	13.24	13.66	14.22	14.56
Fe₂O₃	2.26	2.37	0.95	2.18	1.89	1.24	1.20	1.33
FeO	1.14	0.18	0.30	1.10	1.32	1.20	1.47	1.26
MnO₂	0.09	0.04	0.04	0.07	0.09	0.02	0.07	0.14
MgO	0.54	1.22	0.70	1.16	0.83	0.50	0.58	0.40
CaO	1.33	0.81	0.92	1.53	1.53	0.75	1.73	1.67
Na₂O	4.09	3.15	3.37	3.54	3.29	3.25	4.14	3.90
K₂O	2.06	5.36	4.01	3.76	4.70	4.77	2.72	3.29
P₂O₅	0.13	0.15	0.04	0.14	0.15	0.04	0.07	0.08
LOI	1.66	2.11	1.10	1.75	1.60	1.27	1.56	1.46
DI	86.15	86.74	90.99	84.65	86.63	90.01	84.87	85.62
SI	5.35	9.93	7.50	9.88	6.90	4.56	5.74	3.93
A/NK	1.49	1.40	1.28	1.39	1.26	1.30	1.46	1.46
A/KNC	1.20	1.27	1.10	1.11	1.03	1.16	1.12	1.14
σ	1.29	2.95	1.73	1.94	2.24	2.20	1.62	1.80
Mg^#	23.27	48.46	51.93	40.31	32.88	28.79	28.85	22.49
Rb	67.00	183.00	124.00	148.00	155.00	170.00	-	-
K	17101.00	44495.00	33288.00	31213.00	39016.00	39597.00	22579.54	27311.28
Ba	419.26	1159.28	683.76	598.05	808.56	858.02	603.00	635.00
Th	14.42	15.88	33.11	9.33	11.10	14.98	7.37	7.29
U	0.94	1.29	1.54	1.58	1.86	2.08	0.57	0.90
Nb	4.17	13.50	2.83	6.97	8.70	7.17	7.17	6.75
Sr	137.01	297.50	249.44	255.51	249.46	308.30	271.00	245.00
P	567.00	655.00	192.00	602.00	672.00	192.00	305.52	349.17
Ta	0.24	2.23	0.10	0.78	1.36	0.96	0.69	0.72
Ti	2058.00	2879.00	1175.00	2294.00	1971.00	1306.00	1558.70	1318.90
Cr	29.60	14.90	14.50	19.60	20.00	10.80	-	-
Ni	12.4	18.70	7.71	5.42	7.42	4.22	-	-
Sr/Y	22.76	24.33	123.81	51.96	29.16	43.10	30.59	31.21
Nb/Ta	17.57	6.05	27.05	8.94	6.41	7.48	10.39	9.38
Th/Ta	60.80	7.10	316.60	12.00	8.20	15.60	10.68	10.13
Nd/Th	1.75	1.55	0.19	1.77	1.59	1.04	2.46	2.02
La	35.10	24.20	6.85	20.80	17.80	20.20	24.00	18.10
Ce	65.10	65.20	18.10	39.90	34.10	48.00	47.10	42.40
Pr	7.20	6.23	1.78	4.68	4.32	4.43	3.87	2.96
Nd	25.20	24.60	6.310	16.50	17.60	15.60	18.10	14.75
Sm	3.76	4.48	1.24	2.56	3.72	2.66	3.05	2.55
Eu	0.84	1.10	0.47	0.66	0.86	0.67	0.61	0.58
Gd	3.01	3.52	1.05	2.01	2.76	2.18	2.05	1.78
Tb	0.36	0.50	0.16	0.27	0.41	0.31	0.31	0.24
Dy	1.43	2.37	0.72	1.16	1.91	1.55	1.84	1.59
Ho	0.24	0.46	0.11	0.21	0.40	0.29	0.34	0.27
Er	0.63	1.22	0.30	0.60	0.96	0.80	0.98	0.83
Tm	0.12	0.21	0.09	0.13	0.18	0.16	0.15	0.14
Yb	0.53	1.17	0.31	0.67	0.97	0.87	0.93	0.83
Lu	0.09	0.18	0.06	0.12	0.14	0.14	0.13	0.11
Y	6.02	12.20	2.01	4.92	8.56	7.15	8.86	7.85
ΣREE	143.62	135.49	37.54	90.23	86.23	97.87	103.46	87.13
LREE/HREE	21.37	13.06	12.40	16.45	10.15	14.53	14.37	14.05
La_N/Yb_N	47.82	14.87	15.75	22.19	13.15	16.62	18.51	15.64
δEu	0.76	0.85	1.26	0.89	0.82	0.85	0.75	0.83

元素	奥长花岗岩	二长花岗岩					奥长花岗岩	英云闪长岩
元素	GS03	GS01	GS02	GS04	GS05	GS06	XD	WY
SiO₂	71.99	66.88	74.14	70.20	71.27	71.94	71.76	71.45
TiO₂	0.34	0.48	0.20	0.38	0.33	0.22	0.26	0.22
Al₂O₃	13.31	15.33	12.61	13.73	13.24	13.66	14.22	14.56
Fe₂O₃	2.26	2.37	0.95	2.18	1.89	1.24	1.20	1.33
FeO	1.14	0.18	0.30	1.10	1.32	1.20	1.47	1.26
MnO₂	0.09	0.04	0.04	0.07	0.09	0.02	0.07	0.14
MgO	0.54	1.22	0.70	1.16	0.83	0.50	0.58	0.40
CaO	1.33	0.81	0.92	1.53	1.53	0.75	1.73	1.67
Na₂O	4.09	3.15	3.37	3.54	3.29	3.25	4.14	3.90
K₂O	2.06	5.36	4.01	3.76	4.70	4.77	2.72	3.29
P₂O₅	0.13	0.15	0.04	0.14	0.15	0.04	0.07	0.08
LOI	1.66	2.11	1.10	1.75	1.60	1.27	1.56	1.46
DI	86.15	86.74	90.99	84.65	86.63	90.01	84.87	85.62
SI	5.35	9.93	7.50	9.88	6.90	4.56	5.74	3.93
A/NK	1.49	1.40	1.28	1.39	1.26	1.30	1.46	1.46
A/KNC	1.20	1.27	1.10	1.11	1.03	1.16	1.12	1.14
σ	1.29	2.95	1.73	1.94	2.24	2.20	1.62	1.80
Mg^#	23.27	48.46	51.93	40.31	32.88	28.79	28.85	22.49
Rb	67.00	183.00	124.00	148.00	155.00	170.00	-	-
K	17101.00	44495.00	33288.00	31213.00	39016.00	39597.00	22579.54	27311.28
Ba	419.26	1159.28	683.76	598.05	808.56	858.02	603.00	635.00
Th	14.42	15.88	33.11	9.33	11.10	14.98	7.37	7.29
U	0.94	1.29	1.54	1.58	1.86	2.08	0.57	0.90
Nb	4.17	13.50	2.83	6.97	8.70	7.17	7.17	6.75
Sr	137.01	297.50	249.44	255.51	249.46	308.30	271.00	245.00
P	567.00	655.00	192.00	602.00	672.00	192.00	305.52	349.17
Ta	0.24	2.23	0.10	0.78	1.36	0.96	0.69	0.72
Ti	2058.00	2879.00	1175.00	2294.00	1971.00	1306.00	1558.70	1318.90
Cr	29.60	14.90	14.50	19.60	20.00	10.80	-	-
Ni	12.4	18.70	7.71	5.42	7.42	4.22	-	-
Sr/Y	22.76	24.33	123.81	51.96	29.16	43.10	30.59	31.21
Nb/Ta	17.57	6.05	27.05	8.94	6.41	7.48	10.39	9.38
Th/Ta	60.80	7.10	316.60	12.00	8.20	15.60	10.68	10.13
Nd/Th	1.75	1.55	0.19	1.77	1.59	1.04	2.46	2.02
La	35.10	24.20	6.85	20.80	17.80	20.20	24.00	18.10
Ce	65.10	65.20	18.10	39.90	34.10	48.00	47.10	42.40
Pr	7.20	6.23	1.78	4.68	4.32	4.43	3.87	2.96
Nd	25.20	24.60	6.310	16.50	17.60	15.60	18.10	14.75
Sm	3.76	4.48	1.24	2.56	3.72	2.66	3.05	2.55
Eu	0.84	1.10	0.47	0.66	0.86	0.67	0.61	0.58
Gd	3.01	3.52	1.05	2.01	2.76	2.18	2.05	1.78
Tb	0.36	0.50	0.16	0.27	0.41	0.31	0.31	0.24
Dy	1.43	2.37	0.72	1.16	1.91	1.55	1.84	1.59
Ho	0.24	0.46	0.11	0.21	0.40	0.29	0.34	0.27
Er	0.63	1.22	0.30	0.60	0.96	0.80	0.98	0.83
Tm	0.12	0.21	0.09	0.13	0.18	0.16	0.15	0.14
Yb	0.53	1.17	0.31	0.67	0.97	0.87	0.93	0.83
Lu	0.09	0.18	0.06	0.12	0.14	0.14	0.13	0.11
Y	6.02	12.20	2.01	4.92	8.56	7.15	8.86	7.85
ΣREE	143.62	135.49	37.54	90.23	86.23	97.87	103.46	87.13
LREE/HREE	21.37	13.06	12.40	16.45	10.15	14.53	14.37	14.05
La_N/Yb_N	47.82	14.87	15.75	22.19	13.15	16.62	18.51	15.64
δEu	0.76	0.85	1.26	0.89	0.82	0.85	0.75	0.83