Petrogenesis and Geological Significance of the Caledonian Heavy Rare Earth Ore Parent Rock in Southern Jiangxi Province

doi:10.19657/j.geoscience.1000-8527.2024.0959

Abstract

Abstract:

Many studies have been conducted to investigate the Yanshanian heavy rare earth ore-bearing parent rocks, however only a few reports concern the Caledonian ore-bearing parent rocks.In this study, we analyzed the geochemistry, zircon U-Pb geochronology, Lu-Hf and Sr-Nd isotopes of the biotite monzonitic granites in the Caledonian Sunwu pluton in Southern Jiangxi Province.The rock samples show a SiO₂ content of 69.7%-73.0%, a K₂O/Na₂O ratio of 1.38-2.20, and an A/CNK ratio of 1.20-1.67, belonging to the high-silicon and high-potassium-calcium alkaline-potassium basaltic S-type granite.The rock samples are relatively enriched in light rare earths ((La/Yb)_N=6.78-10.38) and show moderate negative europium anomalies (δEu=0.43-0.63).The weighted average ages of zircon ²⁰⁶Pb/²³⁸U in the two granites are (451±3.8) Ma and (461±5.6) Ma, respectively, belonging to the Middle Ordovician Epoch.The crustal model age ( $T D M C$ ) for Hf isotope of zircon is 1918-1496 Ma, and for the whole rock is 1.79-1.76 Ga.The magma source area is mainly composed of Mesoproterozoic lower crust granulite facies source rocks, and the rock mass is intraplate granite formed during the Early Caledonian intracontinental orogeny in South China.The weathering of rare earth element-bearing minerals in the Sunwu pluton can form ion-adsorption heavy rare earth deposits.The Caledonian granite should be given sufficient attention in future exploration work for heavy rare earth elements.The research results provide a reference for the exploration of ion-adsorbed rare earth deposits in the weathering crust of Caledonian granite.

Key words: monzonitic granite, U-Pb dating, Lu-Hf isotope, Sr-Nd isotope, Sunwu pluton, ion-adsorbed rare earth ore

CLC Number:

ZHANG Defu, WANG Xianguang, HE Tao, CAO Mingxuan, LÜ Tingting, GONG Liangxin, XU Jin. Petrogenesis and Geological Significance of the Caledonian Heavy Rare Earth Ore Parent Rock in Southern Jiangxi Province[J]. Geoscience, 2024, 38(04): 959-976.

Figures/Tables 17

Fig.1 Granite distribution map of Southern Jiangxi Province ((a) modified from ref.[32]), and geologic map of Sunwu pluton in Southern Jiangxi Province (modified from ref. ①)

Fig.2 Hand specimen of Sunwu pluton and its microscopic photographs

Table 1 Analysis results of main content(%), rare earth and trace elements(10-6) in Sunwu pluton

样品号	SiO₂		Al₂O₃			CaO			TFeO			K₂O			MgO			MnO			Na₂O		K₂O+Na₂O			K₂O/Na₂O				P₂O₅			TiO₂		Mg^#			A/NK			A/CNK
SW-1	72.83		13.57			0.40			2.56			4.97			0.82			0.07			2.96		7.94			1.68				0.16			0.38		36.48			1.32			1.28
SW-2	72.07		13.95			0.43			3.01			4.44			0.99			0.05			3.21		7.65			1.38				0.17			0.43		36.94			1.38			1.33
SW-3	72.06		14.03			0.37			2.55			5.27			0.84			0.08			2.74		8.01			1.92				0.20			0.37		37.05			1.37			1.35
SW-4	72.63		13.61			0.37			2.60			4.82			0.84			0.07			3.09		7.91			1.56				0.17			0.36		36.54			1.32			1.29
SW-5	73.00		13.49			0.31			2.34			5.27			0.72			0.06			2.84		8.10			1.86				0.16			0.32		35.56			1.30			1.28
SW-6	72.80		13.76			0.29			2.24			5.54			0.68			0.07			2.52		8.07			2.20				0.18			0.33		35.11			1.36			1.34
SW-7	71.82		13.92			0.35			2.60			5.03			0.84			0.07			3.03		8.05			1.66				0.17			0.37		36.43			1.34			1.31
SW-8	69.97		14.75			0.41			3.47			4.87			1.04			0.04			2.52		7.39			1.93				0.22			0.55		34.82			1.57			1.53
SW-9	70.00		14.72			0.41			3.47			4.91			1.08			0.04			2.52		7.43			1.95				0.22			0.55		35.68			1.56			1.52
SW-10	69.90		14.57			0.41			3.37			4.63			1.76			0.05			2.91		7.54			1.59				0.21			0.51		48.21			1.49			1.45
SW-11	72.13		14.28			1.10			1.70			5.00			0.53			0.04			3.13		8.13			1.60				0.14			0.21		35.72			1.35			1.20
SW-12	69.14		14.88			0.42			3.66			4.90			1.4			0.06			2.80		7.70			1.75				0.22			0.55		40.20			1.67			1.67
SW-13	69.91		14.48			1.20			3.41			4.53			0.98			0.07			3.00		7.53			1.51				0.21			0.51		33.87			1.47			1.26
样品号	DI		R₁			R₂			A/MF			C/MF			LOI			T_Zr(℃)			Co		Cr			Cs				Ga			Ni		Sr			Rb			Ba
SW-1	90.2		2637			355			3.91			0.21			1.30			839			4.71		12.8			5.89				18.0			4.68		88.4			229			561
SW-2	88.56		2617			375			3.4			0.19			1.35			838			6.14		13.7			6.90				18.0			5.68		94.1			213			522
SW-3	89.79		2599			362			3.99			0.19			1.42			837			3.16		12.9			7.06				17.6			3.94		74.3			238			576
SW-4	90.19		2617			354			3.85			0.19			1.25			783			4.51		12.5			5.66				17.5			4.94		91.9			222			590
SW-5	91.23		2633			339			4.34			0.18			1.20			838			4.59		14.7			6.04				17.3			3.84		91.0			243			639
SW-6	91.06		2670			340			4.68			0.18			1.27			834			5.92		11.4			7.23				17.5			3.77		73.2			256			652
SW-7	90.04		2545			359			3.94			0.18			1.45			804			5.08		11.5			6.27				18.4			4.81		92.4			238			615
SW-8	86.37		2640			394			3.33			0.17			1.69			778			6.30		13.0			5.06				18.75			5.70		89.5			255			642
样品号		DI		R1			R2			A/MF			C/MF			LOI			T_Zr(℃)			Co			Cr		Cs		Ga			Ni		Sr			Rb			Ba
SW-9		86.36		2630			395			3.24			0.16			1.73			815			6.50			8.0		4.95		18.35			5.50		101.0			241			621
SW-10		85.29		2539			425			2.34			0.12			1.76			806			6.40			8.0		5.20		18.55			5.80		106.0			216			569
SW-11		89.60		2542			428			6.28			0.86			1.03			789			2.50			8.0		12.85		16.95			2.90		124.5			257			384
SW-12		83.82		2454			412			2.74			0.14			1.82			807			6.90			4.0		3.77		19.35			6.00		147.0			218			641
SW-13		84.75		2531			471			3.40			0.52			1.41			799			6.30			8.0		6.05		18.20			5.30		89.5			214			626
样品号		Th		U			Nb			Ta			Hf			Zr			La			Ce			Pr		Nd		Sm			Eu		Gd			Tb			Dy
SW-1		22.40		6.85			22.9			2.57			5.95			159			42.1			86.8			9.85		36.0		7.32			1.20		6.31			0.99			5.86
SW-2		20.10		7.00			24.2			3.03			4.24			105			33.6			75.3			8.13		29.4		6.12			1.04		5.99			0.92			5.59
SW-3		22.50		8.68			23.6			2.81			6.28			162			38.9			79.0			9.20		33.0		6.49			1.11		5.88			0.90			5.53
SW-4		23.50		7.48			22.6			2.66			6.11			153			31.1			61.4			7.07		24.4		5.19			0.72		5.01			0.79			4.80
SW-5		22.60		6.69			20.3			2.65			5.76			149			42.8			86.4			10.35		36.6		7.36			1.14		6.63			1.04			6.10
SW-6		22.60		14.30			22.4			2.90			6.32			154			32.8			63.5			7.97		29.0		6.09			1.25		6.00			0.93			5.84
SW-7		24.10		9.46			22.7			2.76			6.25			162			43.4			86.6			10.00		35.9		7.33			1.13		6.76			1.10			6.09
SW-8		21.00		5.61			22.5			2.60			6.30			235			37.0			67.4			8.32		30.2		5.91			1.08		5.57			0.92			5.16
SW-9		18.45		5.32			21.9			2.60			6.10			227			36.9			79.2			8.95		32.4		6.98			1.11		6.72			1.18			6.94
SW-10		19.45		6.08			21.4			2.30			5.70			222			43.1			79.2			10.10		36.3		7.42			1.13		6.71			1.09			6.20
SW-11		19.70		16.70			16.3			2.40			4.00			127			42.6			79.7			9.85		35.9		7.10			1.16		6.44			1.05			5.93
SW-12		20.10		3.63			22.8			2.40			6.10			231			38.6			72.7			9.08		32.9		7.05			1.15		6.86			1.22			7.18
SW-13		14.50		4.03			21.8			2.20			5.60			213			44.7			82.7			10.60		37.1		7.46			1.17		7.13			1.14			6.50
样品号		Ho			Er			Tm			Yb			Lu			Y			ΣLREE				ΣHREY				ΣREY			ΣLREE/ΣHREY					(La/Yb)_N			δEu
SW-1		1.14			3.34			0.49			3.16			0.50			32.9			183.27				237.96				54.69			4.35					9.56			0.54
SW-2		1.08			3.15			0.48			3.00			0.47			30.8			153.59				205.07				51.48			3.98					8.03			0.53
SW-3		1.06			3.08			0.44			2.92			0.44			30.6			167.70				218.55				50.85			4.30					9.56			0.55
SW-4		0.85			2.36			0.34			2.15			0.33			25.8			129.88				172.31				42.43			4.06					10.38			0.43
SW-5		1.18			3.36			0.51			3.35			0.50			34.3			184.65				241.62				56.97			4.24					9.16			0.50
SW-6		1.14			3.37			0.51			3.47			0.54			33.3			140.61				195.71				55.10			3.55					6.78			0.63
SW-7		1.14			3.34			0.51			3.33			0.53			29.2			184.40				236.39				51.99			4.55					9.36			0.49
SW-8		0.97			2.85			0.44			2.78			0.43			25.1			149.88				194.08				44.20			4.39					9.53			0.58
SW-9		1.33			3.99			0.63			4.16			0.66			33.6			165.50				224.76				59.26			3.79					6.36			0.49
SW-10		1.17			3.44			0.53			3.43			0.55			29.2			177.29				229.62				52.33			4.39					9.02			0.49
SW-11		1.14			3.34			0.51			3.30			0.53			28.5			176.33				227.09				50.76			4.47					9.27			0.52
SW-12		1.40			4.21			0.68			4.46			0.72			35.1			161.51				223.32				61.81			3.61					6.20			0.51
SW-13		1.21			3.64			0.56			3.64			0.58			30.9			183.75				239.03				55.28			4.32					8.81			0.49

Table 1 Analysis results of main content(%), rare earth and trace elements(10-6) in Sunwu pluton

样品号	SiO₂		Al₂O₃			CaO			TFeO			K₂O			MgO			MnO			Na₂O		K₂O+Na₂O			K₂O/Na₂O				P₂O₅			TiO₂		Mg^#			A/NK			A/CNK
SW-1	72.83		13.57			0.40			2.56			4.97			0.82			0.07			2.96		7.94			1.68				0.16			0.38		36.48			1.32			1.28
SW-2	72.07		13.95			0.43			3.01			4.44			0.99			0.05			3.21		7.65			1.38				0.17			0.43		36.94			1.38			1.33
SW-3	72.06		14.03			0.37			2.55			5.27			0.84			0.08			2.74		8.01			1.92				0.20			0.37		37.05			1.37			1.35
SW-4	72.63		13.61			0.37			2.60			4.82			0.84			0.07			3.09		7.91			1.56				0.17			0.36		36.54			1.32			1.29
SW-5	73.00		13.49			0.31			2.34			5.27			0.72			0.06			2.84		8.10			1.86				0.16			0.32		35.56			1.30			1.28
SW-6	72.80		13.76			0.29			2.24			5.54			0.68			0.07			2.52		8.07			2.20				0.18			0.33		35.11			1.36			1.34
SW-7	71.82		13.92			0.35			2.60			5.03			0.84			0.07			3.03		8.05			1.66				0.17			0.37		36.43			1.34			1.31
SW-8	69.97		14.75			0.41			3.47			4.87			1.04			0.04			2.52		7.39			1.93				0.22			0.55		34.82			1.57			1.53
SW-9	70.00		14.72			0.41			3.47			4.91			1.08			0.04			2.52		7.43			1.95				0.22			0.55		35.68			1.56			1.52
SW-10	69.90		14.57			0.41			3.37			4.63			1.76			0.05			2.91		7.54			1.59				0.21			0.51		48.21			1.49			1.45
SW-11	72.13		14.28			1.10			1.70			5.00			0.53			0.04			3.13		8.13			1.60				0.14			0.21		35.72			1.35			1.20
SW-12	69.14		14.88			0.42			3.66			4.90			1.4			0.06			2.80		7.70			1.75				0.22			0.55		40.20			1.67			1.67
SW-13	69.91		14.48			1.20			3.41			4.53			0.98			0.07			3.00		7.53			1.51				0.21			0.51		33.87			1.47			1.26
样品号	DI		R₁			R₂			A/MF			C/MF			LOI			T_Zr(℃)			Co		Cr			Cs				Ga			Ni		Sr			Rb			Ba
SW-1	90.2		2637			355			3.91			0.21			1.30			839			4.71		12.8			5.89				18.0			4.68		88.4			229			561
SW-2	88.56		2617			375			3.4			0.19			1.35			838			6.14		13.7			6.90				18.0			5.68		94.1			213			522
SW-3	89.79		2599			362			3.99			0.19			1.42			837			3.16		12.9			7.06				17.6			3.94		74.3			238			576
SW-4	90.19		2617			354			3.85			0.19			1.25			783			4.51		12.5			5.66				17.5			4.94		91.9			222			590
SW-5	91.23		2633			339			4.34			0.18			1.20			838			4.59		14.7			6.04				17.3			3.84		91.0			243			639
SW-6	91.06		2670			340			4.68			0.18			1.27			834			5.92		11.4			7.23				17.5			3.77		73.2			256			652
SW-7	90.04		2545			359			3.94			0.18			1.45			804			5.08		11.5			6.27				18.4			4.81		92.4			238			615
SW-8	86.37		2640			394			3.33			0.17			1.69			778			6.30		13.0			5.06				18.75			5.70		89.5			255			642
样品号		DI		R1			R2			A/MF			C/MF			LOI			T_Zr(℃)			Co			Cr		Cs		Ga			Ni		Sr			Rb			Ba
SW-9		86.36		2630			395			3.24			0.16			1.73			815			6.50			8.0		4.95		18.35			5.50		101.0			241			621
SW-10		85.29		2539			425			2.34			0.12			1.76			806			6.40			8.0		5.20		18.55			5.80		106.0			216			569
SW-11		89.60		2542			428			6.28			0.86			1.03			789			2.50			8.0		12.85		16.95			2.90		124.5			257			384
SW-12		83.82		2454			412			2.74			0.14			1.82			807			6.90			4.0		3.77		19.35			6.00		147.0			218			641
SW-13		84.75		2531			471			3.40			0.52			1.41			799			6.30			8.0		6.05		18.20			5.30		89.5			214			626
样品号		Th		U			Nb			Ta			Hf			Zr			La			Ce			Pr		Nd		Sm			Eu		Gd			Tb			Dy
SW-1		22.40		6.85			22.9			2.57			5.95			159			42.1			86.8			9.85		36.0		7.32			1.20		6.31			0.99			5.86
SW-2		20.10		7.00			24.2			3.03			4.24			105			33.6			75.3			8.13		29.4		6.12			1.04		5.99			0.92			5.59
SW-3		22.50		8.68			23.6			2.81			6.28			162			38.9			79.0			9.20		33.0		6.49			1.11		5.88			0.90			5.53
SW-4		23.50		7.48			22.6			2.66			6.11			153			31.1			61.4			7.07		24.4		5.19			0.72		5.01			0.79			4.80
SW-5		22.60		6.69			20.3			2.65			5.76			149			42.8			86.4			10.35		36.6		7.36			1.14		6.63			1.04			6.10
SW-6		22.60		14.30			22.4			2.90			6.32			154			32.8			63.5			7.97		29.0		6.09			1.25		6.00			0.93			5.84
SW-7		24.10		9.46			22.7			2.76			6.25			162			43.4			86.6			10.00		35.9		7.33			1.13		6.76			1.10			6.09
SW-8		21.00		5.61			22.5			2.60			6.30			235			37.0			67.4			8.32		30.2		5.91			1.08		5.57			0.92			5.16
SW-9		18.45		5.32			21.9			2.60			6.10			227			36.9			79.2			8.95		32.4		6.98			1.11		6.72			1.18			6.94
SW-10		19.45		6.08			21.4			2.30			5.70			222			43.1			79.2			10.10		36.3		7.42			1.13		6.71			1.09			6.20
SW-11		19.70		16.70			16.3			2.40			4.00			127			42.6			79.7			9.85		35.9		7.10			1.16		6.44			1.05			5.93
SW-12		20.10		3.63			22.8			2.40			6.10			231			38.6			72.7			9.08		32.9		7.05			1.15		6.86			1.22			7.18
SW-13		14.50		4.03			21.8			2.20			5.60			213			44.7			82.7			10.60		37.1		7.46			1.17		7.13			1.14			6.50
样品号		Ho			Er			Tm			Yb			Lu			Y			ΣLREE				ΣHREY				ΣREY			ΣLREE/ΣHREY					(La/Yb)_N			δEu
SW-1		1.14			3.34			0.49			3.16			0.50			32.9			183.27				237.96				54.69			4.35					9.56			0.54
SW-2		1.08			3.15			0.48			3.00			0.47			30.8			153.59				205.07				51.48			3.98					8.03			0.53
SW-3		1.06			3.08			0.44			2.92			0.44			30.6			167.70				218.55				50.85			4.30					9.56			0.55
SW-4		0.85			2.36			0.34			2.15			0.33			25.8			129.88				172.31				42.43			4.06					10.38			0.43
SW-5		1.18			3.36			0.51			3.35			0.50			34.3			184.65				241.62				56.97			4.24					9.16			0.50
SW-6		1.14			3.37			0.51			3.47			0.54			33.3			140.61				195.71				55.10			3.55					6.78			0.63
SW-7		1.14			3.34			0.51			3.33			0.53			29.2			184.40				236.39				51.99			4.55					9.36			0.49
SW-8		0.97			2.85			0.44			2.78			0.43			25.1			149.88				194.08				44.20			4.39					9.53			0.58
SW-9		1.33			3.99			0.63			4.16			0.66			33.6			165.50				224.76				59.26			3.79					6.36			0.49
SW-10		1.17			3.44			0.53			3.43			0.55			29.2			177.29				229.62				52.33			4.39					9.02			0.49
SW-11		1.14			3.34			0.51			3.30			0.53			28.5			176.33				227.09				50.76			4.47					9.27			0.52
SW-12		1.40			4.21			0.68			4.46			0.72			35.1			161.51				223.32				61.81			3.61					6.20			0.51
SW-13		1.21			3.64			0.56			3.64			0.58			30.9			183.75				239.03				55.28			4.32					8.81			0.49

Fig.3 Rock classification diagrams of Sunwu pluton

Fig.4 Chondrite-normalized rare earth element (a) and primitive-mantle-normalized trace clement (b) for samples of Sunwu pluton (normalizing values after ref.[47])

Table 2 U-Pb isotopic analysis results of zircon in samples from Sunwu pluton

测点号	元素含量(10^-6)			Th/U	同位素比值							年龄(Ma)											谐和度 (%)
测点号	Pb	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁶Pb/ ²³⁸U	1σ		²⁰⁷Pb/ ²⁰⁶Pb	1σ		²⁰⁷Pb/ ²³⁵U		1σ		²⁰⁶Pb/ ²³⁸U		1σ		谐和度 (%)
XFC-01	57	306	646	0.47	0.0567	0.0014	0.5702	0.0139	0.0725	0.0009	480		49.1		458		9.0		451		6		98
XFC-02	58	394	537	0.73	0.0605	0.0014	0.6159	0.0142	0.0734	0.0010	620		50.8		487		8.9		457		6		93
XFC-03	64	345	717	0.48	0.0584	0.0013	0.5910	0.0129	0.0729	0.0009	543		48.1		472		8.2		454		5		96
XFC-04	23	144	241	0.60	0.0565	0.0017	0.5789	0.0181	0.0739	0.0011	472		36.1		464		11.7		459		6		99
XFC-05	78	423	866	0.49	0.0579	0.0011	0.5715	0.0121	0.0710	0.0009	524		44.4		459		7.8		442		5		96
XFC-06	39	199	440	0.45	0.0587	0.0015	0.6021	0.0145	0.0743	0.0009	567		57.4		479		9.2		462		5		96
XFC-07	80	416	944	0.44	0.0574	0.0012	0.5802	0.0119	0.0729	0.0009	509		46.3		465		7.6		453		6		97
XFC-08	57	393	523	0.75	0.0569	0.0012	0.5819	0.0136	0.0735	0.0010	487		46.3		466		8.8		457		6		98
XFC-09	30	182	303	0.60	0.0579	0.0017	0.6010	0.0178	0.0748	0.0010	528		64.8		478		11.3		465		6		97
XFC-10	64	382	674	0.57	0.0566	0.0014	0.5752	0.0147	0.0730	0.0010	476		53.7		461		9.5		454		6		98
XFC-11	83	352	1067	0.33	0.0607	0.0015	0.5949	0.0144	0.0710	0.0012	632		51.8		474		9.2		442		7		93
XFC-12	25	160	246	0.65	0.0595	0.0020	0.5814	0.0181	0.0709	0.0009	583		65.7		465		11.6		442		6		94
XFC-13	150	587	823	0.71	0.1141	0.0073	1.3625	0.1100	0.0794	0.0015	1866		115.3		873		47.3		493		9		44
XFC-14	68	323	781	0.41	0.0600	0.0014	0.5992	0.0151	0.0717	0.0009	606		50.0		477		9.6		446		5		93
XFC-15	47	262	550	0.48	0.0561	0.0013	0.5482	0.0124	0.0706	0.0009	457		50.0		444		8.2		440		5		99
XFC-16	90	497	957	0.52	0.0588	0.0011	0.596 6	0.0110	0.0732	0.0008	561		47.2		475		7.0		455		5		95
XFC-17	71	427	756	0.56	0.0566	0.0012	0.5585	0.0117	0.0711	0.0008	476		46.3		451		7.6		443		5		98
XFC-18	70	341	783	0.43	0.0614	0.0012	0.6059	0.0122	0.0714	0.0010	650		44.4		481		7.7		445		6		92
XFC-19	60	95	284	0.34	0.0854	0.0017	2.1813	0.0757	0.1823	0.0052	1324		37.2		1175		24.2		1080		28		91
XFC-20	68	344	820	0.42	0.0551	0.0012	0.5580	0.0131	0.0730	0.0011	417		46.3		450		8.5		454		7		99
AY-5-01	91	584	1125	0.52	0.0636	0.0021	0.6353	0.0217	0.0723	0.0022	728		70.4		499		13.5		450		13		90
AY-5-02	56	295	695	0.43	0.0565	0.0020	0.5903	0.0207	0.0759	0.0023	472		77.8		471		13.2		472		14		99
AY-5-03	58	425	715	0.59	0.0565	0.0020	0.5724	0.0204	0.0733	0.0022	472		77.8		460		13.2		456		13		99
AY-5-04	31	149	379	0.39	0.0543	0.0020	0.5741	0.0218	0.0763	0.0023	383		83.3		461		14.1		474		14		97
AY-5-05	66	207	794	0.26	0.0558	0.0019	0.6471	0.0233	0.0838	0.0026	456		75.9		507		14.3		519		15		97
AY-5-06	116	811	1470	0.55	0.0599	0.0019	0.5814	0.0189	0.0704	0.0021	611		102.8		465		12.1		438		12		94
AY-5-07	55	368	686	0.54	0.0583	0.0019	0.5895	0.0192	0.0732	0.0021	539		65.7		471		12.3		456		13		96
AY-5-08	76	196	526	0.37	0.1051	0.0037	2.0717	0.1026	0.1380	0.0051	1717		64.8		1139		33.9		833		29		68
AY-5-09	60	385	740	0.52	0.0566	0.0018	0.5800	0.0194	0.0741	0.0022	476		70.4		464		12.5		461		13		99
AY-5-10	62	483	765	0.63	0.0574	0.0019	0.5789	0.0196	0.0730	0.0021	509		78.7		464		12.6		454		13		97
AY-5-11	58	292	739	0.39	0.0541	0.0018	0.5609	0.0191	0.0752	0.0022	372		80.5		452		12.4		468		13		96
AY-5-12	144	566	1861	0.30	0.0561	0.0018	0.5952	0.0204	0.0770	0.0023	454		69.4		474		13.0		478		14		99
AY-5-13	82	527	1036	0.51	0.0582	0.0019	0.5938	0.0203	0.0744	0.0023	600		72.2		473		12.9		462		14		97
AY-5-14	61	241	792	0.30	0.0559	0.0018	0.5823	0.0188	0.0759	0.0022	456		72.2		466		12.1		472		13		98
AY-5-15	74	334	993	0.34	0.0531	0.0016	0.5432	0.0178	0.0740	0.0022	332		102.8		441		11.7		460		13		95
AY-5-16	36	142	436	0.33	0.0543	0.0019	0.6134	0.0221	0.0818	0.0024	383		77.8		486		13.9		507		14		95
AY-5-17	31	276	365	0.76	0.0540	0.0019	0.5604	0.0205	0.0753	0.0022	372		75.0		452		13.4		468		13		96
AY-5-18	52	320	643	0.50	0.0555	0.0019	0.5736	0.0194	0.0751	0.0021	435		71.3		460		12.5		467		13		98
AY-5-19	21	132	228	0.58	0.0551	0.0020	0.6724	0.0259	0.0890	0.0028	417		83.3		522		15.7		550		17		94
测点号	元素含量(10^-6)			Th/U	同位素比值							年龄(Ma)										谐和度 (%)
测点号	Pb	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁶Pb/ ²³⁸U	1σ		²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁷Pb/ ²³⁵U		1σ		²⁰⁶Pb/ ²³⁸U		1σ		谐和度 (%)
AY-5-20	29	178	373	0.48	0.0542	0.0020	0.5411	0.0199	0.0728	0.0021	389		80.5	439		13.1		453		13		96
AY-5-21	33	156	420	0.37	0.0555	0.0020	0.5805	0.0212	0.0760	0.0022	432		79.6	465		13.6		472		13		98
AY-5-22	59	523	704	0.74	0.0543	0.0018	0.5547	0.0191	0.0739	0.0022	387		74.1	448		12.5		460		13		97
AY-5-23	59	428	751	0.57	0.0557	0.0019	0.5514	0.0198	0.0719	0.0022	439		80.5	446		13.0		447		13		99
AY-5-24	76	306	973	0.31	0.0542	0.0018	0.5846	0.0202	0.0783	0.0024	389		74.1	467		12.9		486		14		96
AY-5-25	130	526	1770	0.30	0.0544	0.0017	0.5542	0.0182	0.0738	0.0021	391		70.4	448		11.9		459		13		97

Table 2 U-Pb isotopic analysis results of zircon in samples from Sunwu pluton

测点号	元素含量(10^-6)			Th/U	同位素比值							年龄(Ma)											谐和度 (%)
测点号	Pb	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁶Pb/ ²³⁸U	1σ		²⁰⁷Pb/ ²⁰⁶Pb	1σ		²⁰⁷Pb/ ²³⁵U		1σ		²⁰⁶Pb/ ²³⁸U		1σ		谐和度 (%)
XFC-01	57	306	646	0.47	0.0567	0.0014	0.5702	0.0139	0.0725	0.0009	480		49.1		458		9.0		451		6		98
XFC-02	58	394	537	0.73	0.0605	0.0014	0.6159	0.0142	0.0734	0.0010	620		50.8		487		8.9		457		6		93
XFC-03	64	345	717	0.48	0.0584	0.0013	0.5910	0.0129	0.0729	0.0009	543		48.1		472		8.2		454		5		96
XFC-04	23	144	241	0.60	0.0565	0.0017	0.5789	0.0181	0.0739	0.0011	472		36.1		464		11.7		459		6		99
XFC-05	78	423	866	0.49	0.0579	0.0011	0.5715	0.0121	0.0710	0.0009	524		44.4		459		7.8		442		5		96
XFC-06	39	199	440	0.45	0.0587	0.0015	0.6021	0.0145	0.0743	0.0009	567		57.4		479		9.2		462		5		96
XFC-07	80	416	944	0.44	0.0574	0.0012	0.5802	0.0119	0.0729	0.0009	509		46.3		465		7.6		453		6		97
XFC-08	57	393	523	0.75	0.0569	0.0012	0.5819	0.0136	0.0735	0.0010	487		46.3		466		8.8		457		6		98
XFC-09	30	182	303	0.60	0.0579	0.0017	0.6010	0.0178	0.0748	0.0010	528		64.8		478		11.3		465		6		97
XFC-10	64	382	674	0.57	0.0566	0.0014	0.5752	0.0147	0.0730	0.0010	476		53.7		461		9.5		454		6		98
XFC-11	83	352	1067	0.33	0.0607	0.0015	0.5949	0.0144	0.0710	0.0012	632		51.8		474		9.2		442		7		93
XFC-12	25	160	246	0.65	0.0595	0.0020	0.5814	0.0181	0.0709	0.0009	583		65.7		465		11.6		442		6		94
XFC-13	150	587	823	0.71	0.1141	0.0073	1.3625	0.1100	0.0794	0.0015	1866		115.3		873		47.3		493		9		44
XFC-14	68	323	781	0.41	0.0600	0.0014	0.5992	0.0151	0.0717	0.0009	606		50.0		477		9.6		446		5		93
XFC-15	47	262	550	0.48	0.0561	0.0013	0.5482	0.0124	0.0706	0.0009	457		50.0		444		8.2		440		5		99
XFC-16	90	497	957	0.52	0.0588	0.0011	0.596 6	0.0110	0.0732	0.0008	561		47.2		475		7.0		455		5		95
XFC-17	71	427	756	0.56	0.0566	0.0012	0.5585	0.0117	0.0711	0.0008	476		46.3		451		7.6		443		5		98
XFC-18	70	341	783	0.43	0.0614	0.0012	0.6059	0.0122	0.0714	0.0010	650		44.4		481		7.7		445		6		92
XFC-19	60	95	284	0.34	0.0854	0.0017	2.1813	0.0757	0.1823	0.0052	1324		37.2		1175		24.2		1080		28		91
XFC-20	68	344	820	0.42	0.0551	0.0012	0.5580	0.0131	0.0730	0.0011	417		46.3		450		8.5		454		7		99
AY-5-01	91	584	1125	0.52	0.0636	0.0021	0.6353	0.0217	0.0723	0.0022	728		70.4		499		13.5		450		13		90
AY-5-02	56	295	695	0.43	0.0565	0.0020	0.5903	0.0207	0.0759	0.0023	472		77.8		471		13.2		472		14		99
AY-5-03	58	425	715	0.59	0.0565	0.0020	0.5724	0.0204	0.0733	0.0022	472		77.8		460		13.2		456		13		99
AY-5-04	31	149	379	0.39	0.0543	0.0020	0.5741	0.0218	0.0763	0.0023	383		83.3		461		14.1		474		14		97
AY-5-05	66	207	794	0.26	0.0558	0.0019	0.6471	0.0233	0.0838	0.0026	456		75.9		507		14.3		519		15		97
AY-5-06	116	811	1470	0.55	0.0599	0.0019	0.5814	0.0189	0.0704	0.0021	611		102.8		465		12.1		438		12		94
AY-5-07	55	368	686	0.54	0.0583	0.0019	0.5895	0.0192	0.0732	0.0021	539		65.7		471		12.3		456		13		96
AY-5-08	76	196	526	0.37	0.1051	0.0037	2.0717	0.1026	0.1380	0.0051	1717		64.8		1139		33.9		833		29		68
AY-5-09	60	385	740	0.52	0.0566	0.0018	0.5800	0.0194	0.0741	0.0022	476		70.4		464		12.5		461		13		99
AY-5-10	62	483	765	0.63	0.0574	0.0019	0.5789	0.0196	0.0730	0.0021	509		78.7		464		12.6		454		13		97
AY-5-11	58	292	739	0.39	0.0541	0.0018	0.5609	0.0191	0.0752	0.0022	372		80.5		452		12.4		468		13		96
AY-5-12	144	566	1861	0.30	0.0561	0.0018	0.5952	0.0204	0.0770	0.0023	454		69.4		474		13.0		478		14		99
AY-5-13	82	527	1036	0.51	0.0582	0.0019	0.5938	0.0203	0.0744	0.0023	600		72.2		473		12.9		462		14		97
AY-5-14	61	241	792	0.30	0.0559	0.0018	0.5823	0.0188	0.0759	0.0022	456		72.2		466		12.1		472		13		98
AY-5-15	74	334	993	0.34	0.0531	0.0016	0.5432	0.0178	0.0740	0.0022	332		102.8		441		11.7		460		13		95
AY-5-16	36	142	436	0.33	0.0543	0.0019	0.6134	0.0221	0.0818	0.0024	383		77.8		486		13.9		507		14		95
AY-5-17	31	276	365	0.76	0.0540	0.0019	0.5604	0.0205	0.0753	0.0022	372		75.0		452		13.4		468		13		96
AY-5-18	52	320	643	0.50	0.0555	0.0019	0.5736	0.0194	0.0751	0.0021	435		71.3		460		12.5		467		13		98
AY-5-19	21	132	228	0.58	0.0551	0.0020	0.6724	0.0259	0.0890	0.0028	417		83.3		522		15.7		550		17		94
测点号	元素含量(10^-6)			Th/U	同位素比值							年龄(Ma)										谐和度 (%)
测点号	Pb	Th	U	Th/U	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁶Pb/ ²³⁸U	1σ		²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁷Pb/ ²³⁵U		1σ		²⁰⁶Pb/ ²³⁸U		1σ		谐和度 (%)
AY-5-20	29	178	373	0.48	0.0542	0.0020	0.5411	0.0199	0.0728	0.0021	389		80.5	439		13.1		453		13		96
AY-5-21	33	156	420	0.37	0.0555	0.0020	0.5805	0.0212	0.0760	0.0022	432		79.6	465		13.6		472		13		98
AY-5-22	59	523	704	0.74	0.0543	0.0018	0.5547	0.0191	0.0739	0.0022	387		74.1	448		12.5		460		13		97
AY-5-23	59	428	751	0.57	0.0557	0.0019	0.5514	0.0198	0.0719	0.0022	439		80.5	446		13.0		447		13		99
AY-5-24	76	306	973	0.31	0.0542	0.0018	0.5846	0.0202	0.0783	0.0024	389		74.1	467		12.9		486		14		96
AY-5-25	130	526	1770	0.30	0.0544	0.0017	0.5542	0.0182	0.0738	0.0021	391		70.4	448		11.9		459		13		97

Fig.5 Zircon cathode luminescence (CL) image in samples from Sunwu pluton

Fig.6 Zircon U-Pb concordia map of samples from Sunwu pluton

Table 3 Lu-Hf isotopic composition of Sunwu pluton

测点号	年龄(Ma)	¹⁷⁶Yb/¹⁷⁷Hf	¹⁷⁶Lu/¹⁷⁷Hf	¹⁷⁶Hf/¹⁷⁷Hf±2σ	ε_Hf(0)	ε_Hf(t)	$T D M 1$ (Ma)	$T D M C$ (Ma)	f_Lu/Hf
XFC-01	451	0.036940	0.000985	0.282402±0.000017	-13.08	-3.49	1202	1657	-0.97
XFC-02	457	0.024640	0.000687	0.282387±0.000014	-13.62	-3.93	1213	1685	-0.98
XFC-03	454	0.059200	0.001517	0.282416±0.000022	-12.59	-3.15	1199	1636	-0.95
XFC-04	459	0.041590	0.001076	0.282322±0.000016	-15.91	-6.35	1317	1838	-0.97
XFC-05	442	0.036057	0.000977	0.282407±0.000015	-12.91	-3.31	1194	1646	-0.97
XFC-06	462	0.039040	0.001039	0.282415±0.000015	-12.63	-3.04	1185	1629	-0.97
XFC-07	453	0.038660	0.001024	0.282412±0.000017	-12.73	-3.14	1189	1635	-0.97
XFC-08	457	0.036280	0.000955	0.282318±0.000018	-16.06	-6.45	1318	1844	-0.97
XFC-09	465	0.040200	0.001130	0.282415±0.000016	-12.63	-3.07	1188	1631	-0.97
XFC-10	454	0.034540	0.000952	0.282407±0.000015	-12.91	-3.30	1194	1645	-0.97
XFC-11	442	0.041240	0.001065	0.282336±0.000014	-15.42	-5.85	1297	1806	-0.97
XFC-12	442	0.039680	0.001086	0.282374±0.000016	-14.07	-4.51	1244	1721	-0.97
XFC-14	446	0.036140	0.000991	0.282409±0.000016	-12.84	-3.24	1192	1641	-0.97
XFC-15	440	0.050160	0.001359	0.282438±0.000019	-11.81	-2.32	1163	1583	-0.96
XFC-16	455	0.038940	0.001044	0.282425±0.000018	-12.27	-2.69	1171	1606	-0.97
XFC-17	443	0.035490	0.000957	0.282406±0.000014	-12.94	-3.34	1195	1647	-0.97
XFC-18	445	0.039820	0.001056	0.282427±0.000015	-12.20	-2.62	1169	1602	-0.97
XFC-20	454	0.036940	0.000985	0.282402±0.000017	-13.08	-3.49	1202	1657	-0.97
AY-5-2	472	0.037560	0.001212	0.282435±0.000020	-11.92	-1.92	1162	1575	-0.96
AY-5-3	456	0.043720	0.001411	0.282468±0.000022	-10.75	-1.15	1122	1514	-0.96
AY-5-4	474	0.032340	0.001048	0.282468±0.000025	-10.75	-0.66	1111	1496	-0.97
AY-5-6	438	0.039670	0.001277	0.282419±0.000022	-12.48	-3.23	1187	1631	-0.96
AY-5-7	456	0.037270	0.001214	0.282434±0.000018	-11.95	-2.29	1164	1586	-0.96
AY-5-9	461	0.027490	0.000930	0.282282±0.000021	-17.33	-7.48	1368	1918	-0.97
AY-5-10	454	0.027960	0.000941	0.282429±0.000019	-12.13	-2.43	1162	1593	-0.97
AY-5-11	468	0.036450	0.001155	0.282437±0.000022	-11.85	-1.91	1158	1571	-0.97
AY-5-12	478	0.021070	0.000717	0.282418±0.000021	-12.52	-2.23	1171	1599	-0.98
AY-5-13	462	0.059000	0.001887	0.282446±0.000022	-11.53	-1.95	1168	1569	-0.94
测点号	年龄(Ma)	¹⁷⁶Yb/¹⁷⁷Hf	¹⁷⁶Lu/¹⁷⁷Hf	¹⁷⁶Hf/¹⁷⁷Hf±2σ	ε_Hf(0)	ε_Hf(t)	$T D M 1$ (Ma)	$T D M C$ (Ma)	f_Lu/Hf
AY-5-14	472	0.037840	0.001178	0.282455±0.000019	-11.21	-1.20	1133	1529	-0.96
AY-5-15	460	0.045800	0.001426	0.282441±0.000020	-11.71	-2.03	1161	1572	-0.96
AY-5-17	468	0.028110	0.000971	0.282436±0.000023	-11.88	-1.89	1154	1570	-0.97
AY-5-18	467	0.041350	0.001261	0.282467±0.000021	-10.79	-0.91	1119	1507	-0.96
AY-5-20	453	0.043690	0.001327	0.282425±0.000033	-12.27	-2.71	1180	1610	-0.96

Table 3 Lu-Hf isotopic composition of Sunwu pluton

测点号	年龄(Ma)	¹⁷⁶Yb/¹⁷⁷Hf	¹⁷⁶Lu/¹⁷⁷Hf	¹⁷⁶Hf/¹⁷⁷Hf±2σ	ε_Hf(0)	ε_Hf(t)	$T D M 1$ (Ma)	$T D M C$ (Ma)	f_Lu/Hf
XFC-01	451	0.036940	0.000985	0.282402±0.000017	-13.08	-3.49	1202	1657	-0.97
XFC-02	457	0.024640	0.000687	0.282387±0.000014	-13.62	-3.93	1213	1685	-0.98
XFC-03	454	0.059200	0.001517	0.282416±0.000022	-12.59	-3.15	1199	1636	-0.95
XFC-04	459	0.041590	0.001076	0.282322±0.000016	-15.91	-6.35	1317	1838	-0.97
XFC-05	442	0.036057	0.000977	0.282407±0.000015	-12.91	-3.31	1194	1646	-0.97
XFC-06	462	0.039040	0.001039	0.282415±0.000015	-12.63	-3.04	1185	1629	-0.97
XFC-07	453	0.038660	0.001024	0.282412±0.000017	-12.73	-3.14	1189	1635	-0.97
XFC-08	457	0.036280	0.000955	0.282318±0.000018	-16.06	-6.45	1318	1844	-0.97
XFC-09	465	0.040200	0.001130	0.282415±0.000016	-12.63	-3.07	1188	1631	-0.97
XFC-10	454	0.034540	0.000952	0.282407±0.000015	-12.91	-3.30	1194	1645	-0.97
XFC-11	442	0.041240	0.001065	0.282336±0.000014	-15.42	-5.85	1297	1806	-0.97
XFC-12	442	0.039680	0.001086	0.282374±0.000016	-14.07	-4.51	1244	1721	-0.97
XFC-14	446	0.036140	0.000991	0.282409±0.000016	-12.84	-3.24	1192	1641	-0.97
XFC-15	440	0.050160	0.001359	0.282438±0.000019	-11.81	-2.32	1163	1583	-0.96
XFC-16	455	0.038940	0.001044	0.282425±0.000018	-12.27	-2.69	1171	1606	-0.97
XFC-17	443	0.035490	0.000957	0.282406±0.000014	-12.94	-3.34	1195	1647	-0.97
XFC-18	445	0.039820	0.001056	0.282427±0.000015	-12.20	-2.62	1169	1602	-0.97
XFC-20	454	0.036940	0.000985	0.282402±0.000017	-13.08	-3.49	1202	1657	-0.97
AY-5-2	472	0.037560	0.001212	0.282435±0.000020	-11.92	-1.92	1162	1575	-0.96
AY-5-3	456	0.043720	0.001411	0.282468±0.000022	-10.75	-1.15	1122	1514	-0.96
AY-5-4	474	0.032340	0.001048	0.282468±0.000025	-10.75	-0.66	1111	1496	-0.97
AY-5-6	438	0.039670	0.001277	0.282419±0.000022	-12.48	-3.23	1187	1631	-0.96
AY-5-7	456	0.037270	0.001214	0.282434±0.000018	-11.95	-2.29	1164	1586	-0.96
AY-5-9	461	0.027490	0.000930	0.282282±0.000021	-17.33	-7.48	1368	1918	-0.97
AY-5-10	454	0.027960	0.000941	0.282429±0.000019	-12.13	-2.43	1162	1593	-0.97
AY-5-11	468	0.036450	0.001155	0.282437±0.000022	-11.85	-1.91	1158	1571	-0.97
AY-5-12	478	0.021070	0.000717	0.282418±0.000021	-12.52	-2.23	1171	1599	-0.98
AY-5-13	462	0.059000	0.001887	0.282446±0.000022	-11.53	-1.95	1168	1569	-0.94
测点号	年龄(Ma)	¹⁷⁶Yb/¹⁷⁷Hf	¹⁷⁶Lu/¹⁷⁷Hf	¹⁷⁶Hf/¹⁷⁷Hf±2σ	ε_Hf(0)	ε_Hf(t)	$T D M 1$ (Ma)	$T D M C$ (Ma)	f_Lu/Hf
AY-5-14	472	0.037840	0.001178	0.282455±0.000019	-11.21	-1.20	1133	1529	-0.96
AY-5-15	460	0.045800	0.001426	0.282441±0.000020	-11.71	-2.03	1161	1572	-0.96
AY-5-17	468	0.028110	0.000971	0.282436±0.000023	-11.88	-1.89	1154	1570	-0.97
AY-5-18	467	0.041350	0.001261	0.282467±0.000021	-10.79	-0.91	1119	1507	-0.96
AY-5-20	453	0.043690	0.001327	0.282425±0.000033	-12.27	-2.71	1180	1610	-0.96

Fig.7 Zircon εHf(t)-t diagrams of Sunwu pluton(base map after ref.[48])

Table 4 Sr-Nd isotopic composition of Sunwu pluton

样号	⁸⁷Rb/⁸⁶Sr	⁸⁷Sr/⁸⁶Sr±2σ	(⁸⁷Sr/⁸⁶Sr)_i	¹⁴⁷Sm/¹⁴⁴Nd	¹⁴³Nd/¹⁴⁴Nd±2σ	ε_Nd(t)	$T D M 1$ (Ga)	$T D M 2$ (Ga)
SW-2	7.7644	0.769018±0.000008	0.71813	0.1234	0.512042±0.000005	-7.4	1.86	1.78
SW-4	6.1927	0.765964±0.000008	0.72538	0.1193	0.512047±0.000006	-7.1	1.78	1.76
SW-5	7.0206	0.763318±0.000008	0.71731	0.0860	0.512032±0.000006	-6.4	1.39	1.71
SW-6	5.0703	0.762601±0.000009	0.72937	0.1240	0.512043±0.000006	-7.4	1.88	1.79

Table 4 Sr-Nd isotopic composition of Sunwu pluton

样号	⁸⁷Rb/⁸⁶Sr	⁸⁷Sr/⁸⁶Sr±2σ	(⁸⁷Sr/⁸⁶Sr)_i	¹⁴⁷Sm/¹⁴⁴Nd	¹⁴³Nd/¹⁴⁴Nd±2σ	ε_Nd(t)	$T D M 1$ (Ga)	$T D M 2$ (Ga)
SW-2	7.7644	0.769018±0.000008	0.71813	0.1234	0.512042±0.000005	-7.4	1.86	1.78
SW-4	6.1927	0.765964±0.000008	0.72538	0.1193	0.512047±0.000006	-7.1	1.78	1.76
SW-5	7.0206	0.763318±0.000008	0.71731	0.0860	0.512032±0.000006	-6.4	1.39	1.71
SW-6	5.0703	0.762601±0.000009	0.72937	0.1240	0.512043±0.000006	-7.4	1.88	1.79

Fig.8 Discriminant map of type I and type S granites ((a),after ref.[49]) and map of proterozoic crustal evolution ((b),after ref.[50])

Fig.9 Rock type identification diagrams of Sunwu pluton

Fig.10 (La/Yb)N-δEu diagram ((a), after ref.[68])and SiO2-Mg# diagram of Sunwu pluton ((b), after ref.[69])

Fig.11 C/MF-A/MF source region discrimination diagram ((a), after ref.[70])and Rb/Sr-Rb/Ba diagram ((b), after ref.[63])

Fig.12 R1-R2 discrimination diagram ((a), after ref.[85]) and Yb-Ta discrimination diagram ((b), after ref.[86])

Table 5 Statistics of single project (shallow drilling) orebody in Sunwu pluton

钻孔编号	矿体厚度(m)	平均SRE₂O₃ (%)	平均TRE₂O₃ (%)	浸出率 (%)	矿体性质
ZK101					未见矿
ZK102					未见矿
ZK103					未见矿
ZK104	12.50	0.082	0.153	53.75	轻稀土
ZK105	25.00	0.048	0.071	67.52	重稀土
ZK106	10.56	0.068	0.111	61.13	重稀土
ZK107	12.40	0.067	0.095	70.44	重稀土
ZK108					未见矿
ZK109	8.26	0.060	0.089	67.53	重稀土
ZK110	10.60	0.050	0.097	51.72	轻稀土
ZK111					未见矿
ZK112	20.00	0.047	0.072	65.29	重稀土
ZK113	21.12	0.076	0.102	74.15	重稀土
ZK114	8.00	0.059	0.098	60.20	轻稀土
ZK116	11.40	0.043	0.092	46.50	重稀土
ZK117	9.64	0.052	0.057	91.34	重稀土
ZK118	14.00	0.071	0.083	85.31	轻稀土
ZK120					未见矿
ZK121	7.00	0.056	0.082	68.17	轻稀土
ZK122	16.00	0.052	0.100	52.18	重稀土
ZK123	13.00	0.045	0.082	54.83	重稀土
ZK124	2.21	0.023	0.049	46.84	低品位重稀土
ZK125	23.85	0.065	0.109	59.87	重稀土
ZK126	10.43	0.060	0.095	63.10	重稀土
ZK127	8.28	0.058	0.088	65.77	轻稀土
ZK128	13.00	0.069	0.103	66.94	轻稀土
ZK129					未见矿
ZK130	5.00	0.048	0.061	78.68	重稀土
ZK131	5.00	0.039	0.050	78.64	重稀土

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