Petrogenesis of the Early Cretaceous Jiguanshan granite porphyry in the Liaodong Peninsula: Constraints from geochemistry and single mineral U-Pb-Hf-Nd isotopes

doi:10.13745/j.esf.sf.2024.11.81

Abstract

Abstract:

We systematically study the characteristics of zircon U-Pb geochronology, whole-rock major and trace elements, in-situ apatite trace elements and Nd isotopes, and in-situ zircon Hf isotopes of the Jiguanshan granite porphyry in the Liaodong Peninsula, northeastern North China Craton, aiming to reevaluate its emplacement age and petrogensis, and further to constrain its tectonic significance. The zircon grains in the Jiguanshan granite porphyry show euhedral to subhedral textures, typical oscillatory growth zoning, and high Th/U(0.27-1.12) ratios, indicating a magmatic origin. The zircon U-Pb dating results of fifteen magmatic zircon grains illustrate that the Jiguanshan granite porphyry formed in Early Cretaceous(126±1.4 Ma). The Jiguanshan granite porphyry shows relatively high SiO₂(75.70%-76.07%) and alkali(Na₂O+K₂O, 7.88%-8.30%) but low MgO(0.08%-0.15%) contents (mass fraction). The aluminum saturation index of the Jiguanshan granite porphyry ranges from 1.19 to 1.30, with a peraluminous characteristics. In addition, the Jiguanshan granite porphyry is enriched in light rare earth elements(LREEs), but depleted in heavy rare earth elements(HREEs) with distinctly negative Eu anomalies(Eu/Eu^*=0.36-0.51). Furthermore, the Jiguanshan granite porphyry exhibits a typical arc affinity, with enrichment in large ion lithophile elements(LILEs; e.g., Rb, Th, U) and depletion in high field strength elements(HFSEs; e.g., Nb, Ta). The apatite grains in the Jiguanshan granite porphyry are of magmatic origin. They are enriched in LREEs and LILEs, and depleted in HREEs and HFSEs, with distinctly negative Eu anomalies(Eu/Eu^*=0.11-0.24), which are similar with its host rock. The Jiguanshan granite porphyry belongs to highly fractionated I-type granite. Combining with the relatively low zircon ε_Hf(t) values(-15.5 to -20.1), and apatite ε_Nd(t) values(-15.0 to -16.7), as well as relatively old two-stage Nd-Hf model age (2454-2135 Ma), we believe that the Jiguanshan granite porphyry originated from partial melting of the Paleoproterozoic lower crust that mainly consists of meta-igneous rocks of the Liaohe Group. In combination with the extensive distribution of A-type granites, metamorphic core complexes and large-scale extensional basins in the study area, as well as the migration of magmatic activity from inland to trench during the Late Jurassic to Early Cretaceous, we conclude that the Jiguanshan granite porphyry formed in the extensional tectonic setting related to the roll-back of the subducted Paleo-Pacific plate towards the northeastern North China Craton.

Key words: Liaodong Peninsula, Early Cretaceous, granite porphyry, apatite, zircon

CLC Number:

WU Ke, YAN Xiangyu, YANG Donghong. Petrogenesis of the Early Cretaceous Jiguanshan granite porphyry in the Liaodong Peninsula: Constraints from geochemistry and single mineral U-Pb-Hf-Nd isotopes[J]. Earth Science Frontiers, 2025, 32(4): 388-404.

Figures/Tables 17

References 62

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测点号	w_B/10^-6		Th/ U	同位素比值及误差							年龄及误差/Ma
测点号	Th	U	Th/ U	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁶Pb/ ²³⁸U	1σ		²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁶Pb/ ²³⁸U	1σ
21L03-1-1	420	903	0.47	0.048 97	0.002 55	0.130 95	0.006 72	0.019 27		0.000 20	146	98	125	6	123	1
21L03-1-2	584	1 097	0.53	0.049 49	0.002 03	0.138 36	0.005 67	0.020 16		0.000 22	171	76	132	5	129	1
21L03-1-3	682	946	0.72	0.048 89	0.001 75	0.135 04	0.004 73	0.019 99		0.000 25	143	58	129	4	128	2
21L03-1-4	472	522	0.90	0.049 73	0.002 87	0.128 63	0.007 27	0.018 76		0.000 28	182	102	123	7	120	2
21L03-1-5	907	808	1.12	0.053 08	0.003 31	0.146 59	0.008 70	0.020 07		0.000 42	332	97	139	8	128	3
21L03-1-6	261	253	1.03	0.058 25	0.004 75	0.155 15	0.012 13	0.019 63		0.000 36	539	140	146	11	125	2
21L03-1-8	313	671	0.47	0.048 99	0.003 01	0.134 32	0.008 35	0.019 76		0.000 26	147	116	128	7	126	2
21L03-1-10	457	1 134	0.40	0.049 62	0.001 77	0.136 20	0.004 87	0.019 83		0.000 18	177	66	130	4	127	1
21L03-1-11	247	494	0.50	0.050 51	0.002 07	0.135 59	0.005 38	0.019 58		0.000 20	219	73	129	5	125	1
21L03-1-12	385	737	0.52	0.050 87	0.003 55	0.138 77	0.010 22	0.019 66		0.000 27	235	142	132	9	125	2
21L03-1-13	745	1 136	0.66	0.049 29	0.002 42	0.135 40	0.006 53	0.019 91		0.000 22	162	90	129	6	127	1
21L03-1-14	88	322	0.27	0.052 02	0.004 05	0.139 97	0.010 57	0.01975		0.00037	286	138	133	9	126	2
21L03-1-15	235	233	1.01	0.058 72	0.003 58	0.158 00	0.008 76	0.019 83		0.000 32	557	93	149	8	127	2

测点号	w_B/10^-6		Th/ U	同位素比值及误差							年龄及误差/Ma
测点号	Th	U	Th/ U	²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁶Pb/ ²³⁸U	1σ		²⁰⁷Pb/ ²⁰⁶Pb	1σ	²⁰⁷Pb/ ²³⁵U	1σ	²⁰⁶Pb/ ²³⁸U	1σ
21L03-1-1	420	903	0.47	0.048 97	0.002 55	0.130 95	0.006 72	0.019 27		0.000 20	146	98	125	6	123	1
21L03-1-2	584	1 097	0.53	0.049 49	0.002 03	0.138 36	0.005 67	0.020 16		0.000 22	171	76	132	5	129	1
21L03-1-3	682	946	0.72	0.048 89	0.001 75	0.135 04	0.004 73	0.019 99		0.000 25	143	58	129	4	128	2
21L03-1-4	472	522	0.90	0.049 73	0.002 87	0.128 63	0.007 27	0.018 76		0.000 28	182	102	123	7	120	2
21L03-1-5	907	808	1.12	0.053 08	0.003 31	0.146 59	0.008 70	0.020 07		0.000 42	332	97	139	8	128	3
21L03-1-6	261	253	1.03	0.058 25	0.004 75	0.155 15	0.012 13	0.019 63		0.000 36	539	140	146	11	125	2
21L03-1-8	313	671	0.47	0.048 99	0.003 01	0.134 32	0.008 35	0.019 76		0.000 26	147	116	128	7	126	2
21L03-1-10	457	1 134	0.40	0.049 62	0.001 77	0.136 20	0.004 87	0.019 83		0.000 18	177	66	130	4	127	1
21L03-1-11	247	494	0.50	0.050 51	0.002 07	0.135 59	0.005 38	0.019 58		0.000 20	219	73	129	5	125	1
21L03-1-12	385	737	0.52	0.050 87	0.003 55	0.138 77	0.010 22	0.019 66		0.000 27	235	142	132	9	125	2
21L03-1-13	745	1 136	0.66	0.049 29	0.002 42	0.135 40	0.006 53	0.019 91		0.000 22	162	90	129	6	127	1
21L03-1-14	88	322	0.27	0.052 02	0.004 05	0.139 97	0.010 57	0.01975		0.00037	286	138	133	9	126	2
21L03-1-15	235	233	1.01	0.058 72	0.003 58	0.158 00	0.008 76	0.019 83		0.000 32	557	93	149	8	127	2

样品号	主量元素含量/%
样品号	SiO₂	TiO₂	Al₂O₃	^TFe₂O₃	MnO	MgO	CaO	Na₂O	K₂O	P₂O₅	LOI	Total
21L03-1	75.70	0.14	13.00	1.51	0.05	0.15	0.11	3.25	4.96	0.04	0.81	99.72
21L03-5	76.03	0.10	13.51	1.24	0.02	0.09	0.09	3.06	4.82	0.02	0.87	99.86
21L03-6	76.07	0.10	13.17	1.08	0.02	0.08	0.11	3.12	5.19	0.01	0.61	99.56
样品号	微量元素含量/10^-6
样品号	Be	Sc	V	Cr	Co	Ni	Cu	Zn	Ga	Rb	Sr	Y
21L03-1	1.96	1.59	8.26	16.77	1.20	6.60	1.38	23.74	17.17	226.70	53.50	13.04
21L03-5	5.11	1.76	2.21	10.10	0.43	2.51	3.09	153.50	17.53	246.60	73.45	7.87
21L03-6	1.90	1.79	1.97	9.26	0.29	3.55	7.44	52.50	13.85	194.15	62.75	9.20
样品号	微量元素含量/10^-6
样品号	Zr	Nb	Cs	Ba	Hf	Ta	Pb	Th	U	Ge	Li	Sn
21L03-1	135.60	16.80	1.08	306.35	5.37	3.14	24.05	18.88	3.84	2.38	8.71	2.01
21L03-5	92.00	13.59	2.32	427.90	3.91	2.89	34.00	21.92	4.63	2.17	9.38	7.25
21L03-6	72.35	11.98	1.63	328.95	3.30	2.58	29.74	23.35	5.27	1.89	5.80	3.13
样品号	微量元素含量/10^-6
样品号	Tl	Ti	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho
21L03-1	1.14	865.28	6.36	38.17	1.72	5.95	1.44	0.18	1.70	0.33	2.27	0.52
21L03-5	1.35	607.62	17.39	43.97	3.61	11.67	2.07	0.27	1.73	0.25	1.49	0.31
21L03-6	1.00	582.22	22.39	45.30	4.79	15.74	2.92	0.48	2.74	0.35	1.86	0.37
样品号	微量元素含量/10^-6							(La/Yb)_N	Eu/Eu^*	Rb/Sr	Sr/Y	Nb/Ta
样品号	Er	Tm	Yb	Lu	∑REE	∑LREE	∑HREE	(La/Yb)_N	Eu/Eu^*	Rb/Sr	Sr/Y	Nb/Ta
21L03-1	1.67	0.29	2.07	0.32	62.97	53.81	9.16	2.07	0.36	4.24	4.10	5.36
21L03-5	0.94	0.15	1.02	0.15	85.00	78.97	6.03	11.54	0.42	3.36	9.34	4.70
21L03-6	1.07	0.17	1.08	0.17	99.43	91.61	7.82	14.02	0.51	3.09	6.82	4.64

样品号	主量元素含量/%
样品号	SiO₂	TiO₂	Al₂O₃	^TFe₂O₃	MnO	MgO	CaO	Na₂O	K₂O	P₂O₅	LOI	Total
21L03-1	75.70	0.14	13.00	1.51	0.05	0.15	0.11	3.25	4.96	0.04	0.81	99.72
21L03-5	76.03	0.10	13.51	1.24	0.02	0.09	0.09	3.06	4.82	0.02	0.87	99.86
21L03-6	76.07	0.10	13.17	1.08	0.02	0.08	0.11	3.12	5.19	0.01	0.61	99.56
样品号	微量元素含量/10^-6
样品号	Be	Sc	V	Cr	Co	Ni	Cu	Zn	Ga	Rb	Sr	Y
21L03-1	1.96	1.59	8.26	16.77	1.20	6.60	1.38	23.74	17.17	226.70	53.50	13.04
21L03-5	5.11	1.76	2.21	10.10	0.43	2.51	3.09	153.50	17.53	246.60	73.45	7.87
21L03-6	1.90	1.79	1.97	9.26	0.29	3.55	7.44	52.50	13.85	194.15	62.75	9.20
样品号	微量元素含量/10^-6
样品号	Zr	Nb	Cs	Ba	Hf	Ta	Pb	Th	U	Ge	Li	Sn
21L03-1	135.60	16.80	1.08	306.35	5.37	3.14	24.05	18.88	3.84	2.38	8.71	2.01
21L03-5	92.00	13.59	2.32	427.90	3.91	2.89	34.00	21.92	4.63	2.17	9.38	7.25
21L03-6	72.35	11.98	1.63	328.95	3.30	2.58	29.74	23.35	5.27	1.89	5.80	3.13
样品号	微量元素含量/10^-6
样品号	Tl	Ti	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho
21L03-1	1.14	865.28	6.36	38.17	1.72	5.95	1.44	0.18	1.70	0.33	2.27	0.52
21L03-5	1.35	607.62	17.39	43.97	3.61	11.67	2.07	0.27	1.73	0.25	1.49	0.31
21L03-6	1.00	582.22	22.39	45.30	4.79	15.74	2.92	0.48	2.74	0.35	1.86	0.37
样品号	微量元素含量/10^-6							(La/Yb)_N	Eu/Eu^*	Rb/Sr	Sr/Y	Nb/Ta
样品号	Er	Tm	Yb	Lu	∑REE	∑LREE	∑HREE	(La/Yb)_N	Eu/Eu^*	Rb/Sr	Sr/Y	Nb/Ta
21L03-1	1.67	0.29	2.07	0.32	62.97	53.81	9.16	2.07	0.36	4.24	4.10	5.36
21L03-5	0.94	0.15	1.02	0.15	85.00	78.97	6.03	11.54	0.42	3.36	9.34	4.70
21L03-6	1.07	0.17	1.08	0.17	99.43	91.61	7.82	14.02	0.51	3.09	6.82	4.64

样品号		微量元素含量/10^-6
样品号		Rb	Sr		Y			Zr	Nb	Cs	Ba		Hf		Pb		Th		U		La		Ce		Pr
21L3-1-01		0.24	338.06		1 163.58			1.88	0.01	0.00	1.38		0.02		3.89		36.64		9.33		1 502.72		4 052.83		468.91
21L3-1-02		0.54	325.22		793.61			1.10	0.00	0.05	4.65		0.00		3.36		11.87		2.70		817.38		2 255.64		282.54
21L3-1-03		0.00	341.69		826.02			2.29	0.02	0.03	1.53		0.01		3.49		23.24		5.73		1 265.17		3 269.44		366.28
21L3-1-04		0.21	245.16		888.35			3.22	0.00	0.00	1.74		0.05		3.19		13.39		3.74		850.36		2 402.37		292.85
21L3-1-05		0.00	372.97		796.39			2.07	0.01	0.07	1.86		0.01		3.56		22.76		5.05		1 151.19		2 996.50		342.71
21L3-1-06		0.15	210.01		927.36			4.08	0.01	0.03	0.64		0.04		3.12		15.78		4.17		867.63		2 475.38		302.00
21L3-1-07		0.44	238.52		1 277.60			2.30	0.02	0.13	0.35		0.02		3.96		34.72		8.08		1 067.82		3 179.90		394.85
21L3-1-08		0.00	391.93		526.11			0.03	0.00	0.00	1.92		0.00		3.27		5.62		2.55		658.90		1 597.25		201.88
21L3-1-09		1.72	408.13		900.73			0.89	0.05	0.00	2.32		0.02		2.80		14.88		3.87		441.52		1 303.10		190.51
21L3-1-10		0.00	278.68		655.17			0.87	0.01	0.05	1.40		0.02		3.56		13.56		4.07		1 075.99		2 864.07		324.45
样品号	微量元素含量/10^-6																							Eu/Eu^*		Nd/Nd^*
样品号	Nd			Sm		Eu	Gd		Tb	Dy		Ho		Er		Tm		Yb		Lu		∑REE		Eu/Eu^*		Nd/Nd^*
21L3-1-01	2 080.56			389.99		26.82	316.37		42.14	223.42		41.56		100.65		12.44		68.84		8.94		10 500.09		0.23		1.19
21L3-1-02	1 244.49			249.96		15.20	220.03		27.20	148.65		27.86		68.47		7.34		44.94		6.17		6 209.48		0.19		1.16
21L3-1-03	1 597.69			289.81		20.30	225.46		29.04	153.30		28.05		67.90		8.51		48.18		6.14		8 201.44		0.23		1.19
21L3-1-04	1 376.71			293.48		10.26	256.96		33.34	174.35		32.61		74.98		9.11		50.64		6.08		6 752.51		0.11		1.18
21L3-1-05	1 530.73			277.99		20.42	219.23		28.29	150.60		27.64		65.03		7.83		45.10		5.58		7 665.34		0.24		1.21
21L3-1-06	1 400.57			293.53		10.29	256.64		33.89	182.48		33.23		76.93		8.98		50.10		6.36		6 925.49		0.11		1.18
21L3-1-07	1 863.54			399.28		20.10	336.44		45.59	245.18		45.75		109.59		13.26		76.61		9.60		9 085.29		0.16		1.18
21L3-1-08	908.83			180.52		10.49	155.74		19.82	100.29		18.93		43.88		5.39		29.51		3.73		4 461.55		0.19		1.18
21L3-1-09	952.64			250.14		11.12	240.04		33.02	178.59		33.02		75.46		9.33		48.08		5.90		4 673.54		0.14		1.12
21L3-1-10	1 422.63			248.29		16.64	190.50		23.30	125.55		23.53		58.45		7.81		45.24		5.66		7 087.38		0.23		1.21