Geochemical Characteristics and Zircon Rare Earth Elements of Houhe Intrusive Complex in Xiaoshan Mountain, Western Henan Province

Abstract

Abstract:

The endogenetic mineralization in north Xiaoshan Mountain is weak, and only several Au deposits were found. The petrogenesis of small Yanshanian igneous complexes in north Xiaoshan Mountain is useful to limit the deep geodynamic process, and it is an important evidence to change exploration ideal. In this paper, major and trace elements analytical results of whole rock samples and zircon REEs from Houhe complex were reported. Houhe complex is characterized by higher SiO₂ content and alkali enrichment in K₂O, lower MgO and CaO content. Compositional spots of Houhe complex fell into shoshonitic series in SiO₂-K₂O diagram. A/CNK ratios of Houhe complex are from 1.04 to 1.26. In chondrite-normalized REE pattern diagram, Houhe complex samples have shown the characteristics of LREE enrichment and HREE depletion without obvious Eu anomaly. The (La/Yb)_N ratios of Houhe complex are from 30.95 to 49.38. In spider diagram, the enrichment of Rb, Th, and depletion of Nb, Ta, P and Ti are displayed. Samples of Houhe complex are higher in Sr, and lower in Y and Yb, which indicates that it is adakite. Houhe complex is originated from partial melting of the thickened lower crust, and its residual phases of partial melting source include garnet and rutile. There is no obviously compositional effect of plagioclase fractional crystallization in the process of Houhe granitic magma evolution. Rare earth element content of zircon in Houhe complex has shown the characteristics of LREE depletion, HREE enrichment with Ce positive anomaly and no obvious Eu anomaly. The formation temperature of zircon is from 624 to 701 ℃. In zircon/melts system of Houhe complex, the change of partition coefficients for HREE is a result of magma (fluids) mixing. Houhe complex is product of regional lithosphere delamination in Early Cretaceous; deep fluids and adakitic magma can ascend rapidly in this process. The occurrence of Shenjiayao Au deposits around Houhe complex and the enrichment of Au, Ag, Cu, Mo and W in Houhe complex indicate that it has mineralization potential, and it should be regarded as one of exploration targets in north Xiaoshan Mountain.

Key words: Houhe, adakite, lithosphere delamination, magma (fluid) mixing, mineralization potential, Xiaoshan Mountain

CLC Number:

P581
P595

LIANG Tao, LU Ren. Geochemical Characteristics and Zircon Rare Earth Elements of Houhe Intrusive Complex in Xiaoshan Mountain, Western Henan Province[J]. Geoscience, 2017, 31(04): 705-715.

Figures/Tables 9

Fig.1 Simplified geologic map of Houhe intrusive complex in north Xiao Mountain, western Henan Province

Fig.2 Filed photographs of Houhe intrusive complex

Table 1 Analytical results of major elements(%), trace elements and REEs(10-6) for Houhe intrusive complex

样品编号	岩性	SiO₂	TiO₂	Al₂O₃	Fe₂O₃	FeO	MnO	MgO	CaO	Na₂O	K₂O	P₂O₅	烧失量	总和
HH02	Mon-Grt	68.39	0.40	15.47	1.77	1.08	0.06	0.65	1.23	3.86	4.88	0.17	1.42	99.39
HH03a	Mon-Grt	68.66	0.42	15.35	1.37	1.29	0.06	0.88	1.31	3.89	4.91	0.18	1.26	99.56
HH201	Mon-Grt	68.53	0.36	15.39	1.40	0.54	0.04	0.52	0.59	2.86	6.90	0.19	1.36	98.67
HH202	Mon-Grt	67.54	0.46	16.03	1.99	0.48	0.03	0.57	0.68	2.86	6.26	0.21	1.75	98.86
HH203	Qtz-Mon	67.53	0.38	15.60	1.78	0.75	0.04	0.65	1.23	3.90	5.36	0.21	1.46	98.89
HH204	Qtz-Mon	66.70	0.39	15.41	1.72	1.51	0.02	0.59	1.65	3.93	4.91	0.20	1.20	98.21
HH205	Por-Mon-Grt	67.60	0.39	15.71	1.40	0.97	0.02	0.54	0.88	3.48	5.97	0.19	1.29	98.44
HH206	Por-Mon-Grt	67.01	0.41	15.69	1.49	0.86	0.04	0.65	1.09	3.59	5.41	0.20	1.63	98.07
样品编号	Na₂O+K₂O	A/CNK	A/NK	Ba	Rb	Th	Nb	Ta	Sr	Zr	Hf	Y	La	Ce
HH02	8.74	1.11	1.33	3 153	127.3	15.00	22.59	1.46	688	262	2.36	18.31	60.41	117.1
HH03a	8.80	1.09	1.31	3 175	138.7	15.42	24.04	1.02	700	309	2.13	18.77	61.77	113.7
HH201	9.76	1.16	1.26	2 735	191.9	14.67	9.41	0.61	368	201	7.94	11.16	64.47	106.6
HH202	9.12	1.26	1.39	2 195	182.7	15.37	10.21	0.79	367	215	8.49	13.20	74.28	124.3
HH203	9.26	1.08	1.28	2 162	133.9	17.51	12.12	0.78	682	188	7.45	15.06	74.34	124.4
HH204	8.84	1.04	1.31	2 201	126.1	15.06	13.44	0.90	740	176	6.59	15.60	67.66	113.4
HH205	9.45	1.14	1.29	2 043	154.9	15.44	11.71	0.82	485	205	7.76	12.40	82.76	134.5
HH206	9.00	1.14	1.33	2 181	143.5	15.80	11.88	0.78	508	206	7.23	13.71	85.69	134.2
样品编号	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	ΣREE	(La/Yb)_N
HH02	11.31	39.12	5.95	1.86	5.89	0.62	3.34	0.60	1.44	0.22	1.32	0.25	249.42	30.95
HH03a	11.79	40.58	6.23	1.95	5.92	0.64	3.41	0.63	1.48	0.23	1.32	0.25	249.89	31.60
HH201	12.22	42.77	6.45	2.07	5.71	0.63	2.70	0.43	1.17	0.15	0.97	0.15	246.49	44.81
HH202	14.03	49.47	7.33	2.02	6.44	0.74	3.12	0.50	1.41	0.18	1.13	0.18	285.13	44.32
HH203	13.40	47.05	6.97	2.02	6.37	0.75	3.30	0.55	1.52	0.20	1.31	0.20	282.38	38.26
HH204	12.27	43.41	6.52	1.98	6.07	0.72	3.28	0.57	1.60	0.21	1.40	0.21	259.30	32.58
HH205	14.50	50.33	7.27	2.03	6.50	0.73	3.05	0.49	1.35	0.17	1.13	0.17	304.98	49.38
HH206	14.75	52.31	7.47	2.10	6.86	0.76	3.22	0.53	1.49	0.19	1.23	0.19	310.99	46.97

Table 1 Analytical results of major elements(%), trace elements and REEs(10-6) for Houhe intrusive complex

样品编号	岩性	SiO₂	TiO₂	Al₂O₃	Fe₂O₃	FeO	MnO	MgO	CaO	Na₂O	K₂O	P₂O₅	烧失量	总和
HH02	Mon-Grt	68.39	0.40	15.47	1.77	1.08	0.06	0.65	1.23	3.86	4.88	0.17	1.42	99.39
HH03a	Mon-Grt	68.66	0.42	15.35	1.37	1.29	0.06	0.88	1.31	3.89	4.91	0.18	1.26	99.56
HH201	Mon-Grt	68.53	0.36	15.39	1.40	0.54	0.04	0.52	0.59	2.86	6.90	0.19	1.36	98.67
HH202	Mon-Grt	67.54	0.46	16.03	1.99	0.48	0.03	0.57	0.68	2.86	6.26	0.21	1.75	98.86
HH203	Qtz-Mon	67.53	0.38	15.60	1.78	0.75	0.04	0.65	1.23	3.90	5.36	0.21	1.46	98.89
HH204	Qtz-Mon	66.70	0.39	15.41	1.72	1.51	0.02	0.59	1.65	3.93	4.91	0.20	1.20	98.21
HH205	Por-Mon-Grt	67.60	0.39	15.71	1.40	0.97	0.02	0.54	0.88	3.48	5.97	0.19	1.29	98.44
HH206	Por-Mon-Grt	67.01	0.41	15.69	1.49	0.86	0.04	0.65	1.09	3.59	5.41	0.20	1.63	98.07
样品编号	Na₂O+K₂O	A/CNK	A/NK	Ba	Rb	Th	Nb	Ta	Sr	Zr	Hf	Y	La	Ce
HH02	8.74	1.11	1.33	3 153	127.3	15.00	22.59	1.46	688	262	2.36	18.31	60.41	117.1
HH03a	8.80	1.09	1.31	3 175	138.7	15.42	24.04	1.02	700	309	2.13	18.77	61.77	113.7
HH201	9.76	1.16	1.26	2 735	191.9	14.67	9.41	0.61	368	201	7.94	11.16	64.47	106.6
HH202	9.12	1.26	1.39	2 195	182.7	15.37	10.21	0.79	367	215	8.49	13.20	74.28	124.3
HH203	9.26	1.08	1.28	2 162	133.9	17.51	12.12	0.78	682	188	7.45	15.06	74.34	124.4
HH204	8.84	1.04	1.31	2 201	126.1	15.06	13.44	0.90	740	176	6.59	15.60	67.66	113.4
HH205	9.45	1.14	1.29	2 043	154.9	15.44	11.71	0.82	485	205	7.76	12.40	82.76	134.5
HH206	9.00	1.14	1.33	2 181	143.5	15.80	11.88	0.78	508	206	7.23	13.71	85.69	134.2
样品编号	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	ΣREE	(La/Yb)_N
HH02	11.31	39.12	5.95	1.86	5.89	0.62	3.34	0.60	1.44	0.22	1.32	0.25	249.42	30.95
HH03a	11.79	40.58	6.23	1.95	5.92	0.64	3.41	0.63	1.48	0.23	1.32	0.25	249.89	31.60
HH201	12.22	42.77	6.45	2.07	5.71	0.63	2.70	0.43	1.17	0.15	0.97	0.15	246.49	44.81
HH202	14.03	49.47	7.33	2.02	6.44	0.74	3.12	0.50	1.41	0.18	1.13	0.18	285.13	44.32
HH203	13.40	47.05	6.97	2.02	6.37	0.75	3.30	0.55	1.52	0.20	1.31	0.20	282.38	38.26
HH204	12.27	43.41	6.52	1.98	6.07	0.72	3.28	0.57	1.60	0.21	1.40	0.21	259.30	32.58
HH205	14.50	50.33	7.27	2.03	6.50	0.73	3.05	0.49	1.35	0.17	1.13	0.17	304.98	49.38
HH206	14.75	52.31	7.47	2.10	6.86	0.76	3.22	0.53	1.49	0.19	1.23	0.19	310.99	46.97

Fig.3 Harker diagrams of Houhe intrusive complex

Fig.4 Diagrams of SiO2-(Na2O+K2O) and SiO2-K2O for Houhe intrusive complex

Fig.5 REE patterns and spider diagram for Houhe intrusive complex

Fig.6 Diagrams of Y-Sr/Y and SiO2-MgO for Houhe intrusive complex

Table 2 Analytical results of rare earth elements (10-6) in zircon from Houhe intrusive complex

测点编号	年龄/Ma	Ti	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Y	ΣREE	t/℃	$K d H o$	$K d Y b$	$K d L u$
HH01-03	132	3.86	<0.12	23.8	0.07	0.92	1.23	0.65	5.46	2.12	25.9	10.6	51.3	13.6	154	30.7	365	320	664	19.6	126	154
HH01-04	128	3.93	<0.08	33.5	0.12	1.08	1.98	0.96	9.96	3.64	44.6	18.4	91.5	22.3	246	48.9	614	523	665	34.1	201	245
HH01-05	133	3.78	27.65	111.6	4.61	15.99	5.67	1.72	16.32	4.95	52.3	18.3	80.3	18.4	188	35.6	600	581	662	34.0	153	178
HH01-06	133	4.04	6.67	51.8	1.80	8.70	3.90	1.54	14.01	4.31	54.4	20.2	90.4	20.5	209	38.4	612	525	667	37.6	170	192
HH01-07	132	5.17	<0.06	25.8	<0.07	0.71	1.55	0.65	6.63	2.59	32.2	14.0	70.3	17.9	203	44.0	477	420	687	26.0	166	220
HH01-08	125	5.46	<0.10	39.4	0.07	1.34	2.10	1.13	10.59	3.75	43.4	16.9	79.0	17.7	188	36.3	543	440	692	31.5	154	182
HH01-09	125	4.41	<0.11	45.5	0.07	1.62	2.34	1.13	12.77	4.51	54.8	21.1	97.1	22.4	223	43.0	664	530	674	39.3	182	215
HH01-10	129	4.08	<0.08	29.4	<0.05	0.94	1.77	0.78	8.30	2.98	39.9	16.1	81.2	20.7	226	47.6	549	476	668	30.0	185	238
HH01-11	128	5.23	9.32	48.1	1.67	7.23	2.43	1.15	11.51	3.82	48.7	19.7	94.4	22.1	234	47.1	639	552	688	36.6	191	235
HH01-12	124	3.53	<0.07	28.2	0.10	1.55	2.69	1.29	13.15	4.13	51.1	20.3	97.3	22.0	232	46.3	650	520	657	37.7	189	231
HH01-13	132	4.91	<0.07	32.9	0.09	1.74	2.35	1.09	11.61	3.66	42.9	16.5	72.6	16.0	156	29.2	502	387	683	30.6	127	146
HH01-14	126	3.79	<0.07	38.5	0.07	1.21	2.28	0.98	9.97	3.46	42.3	16.0	73.9	16.9	179	34.3	509	419	662	29.8	146	171
HH01-15	127	4.39	<0.07	29.7	0.08	1.27	2.25	0.83	8.93	2.86	35.1	14.1	66.6	15.5	169	34.1	456	380	674	26.2	137	170
HH01-17	128	6.09	2.05	34.4	0.40	3.17	3.00	1.24	12.05	4.05	49.4	20.1	95.7	22.2	243	50.6	653	542	701	37.5	198	253
HH01-18	134	5.65	<0.09	22.7	<0.09	0.69	0.96	0.54	5.87	1.99	24.0	9.7	45.6	10.8	117	24.1	312	264	695	18.1	95	121
HH01-19	129	4.99	3.14	35.1	0.50	2.60	2.07	0.92	7.00	2.67	31.9	12.1	56.6	13.2	138	28.2	396	334	684	22.5	113	141
HH01-20	127	4.75	<0.07	22.5	0.09	0.69	1.43	0.78	7.02	2.57	31.8	13.8	68.1	17.6	196	42.6	468	405	680	25.7	160	213
HH01-21	129	<2.54	<0.07	33.2	0.06	0.72	1.81	0.87	8.70	3.13	35.7	14.1	62.5	14.5	145	29.1	437	349	-	26.2	118	145
HH01-22	128	5.49	<0.07	26.9	<0.06	<0.39	1.17	0.62	5.59	1.93	23.6	9.3	46.2	11.4	122	26.4	326	275	692	17.4	99	132
HH01-23	125	6.04	0.78	35.0	0.28	2.52	3.12	1.45	14.15	4.47	50.2	19.0	83.2	18.1	177	34.3	576	443	700	35.3	144	171
HH01-24	129	4.07	0.07	35.5	0.06	0.90	2.05	0.93	9.30	3.38	36.5	14.3	65.0	14.6	148	29.2	453	360	668	26.7	121	146
HH01-25	128	5.95	<0.09	32.9	0.06	0.70	1.74	0.81	8.28	2.94	38.4	16.1	78.1	18.8	199	42.3	521	440	699	29.9	163	212
HH01-26	127	5.03	<0.07	28.8	0.07	0.85	1.51	0.73	6.44	2.41	32.6	14.0	71.9	18.2	207	47.1	493	431	685	26.1	168	235
HH01-27	126	5.04	13.48	71.3	4.27	18.69	4.75	1.27	11.91	3.68	42.1	15.6	69.3	15.9	158	30.6	489	461	685	29.0	129	153
HH01-28	131	4.25	<0.07	45.2	0.10	1.52	2.75	1.30	13.78	4.76	57.7	22.9	106.6	24.3	251	48.0	721	580	671	42.7	205	240
HH01-29	129	2.28	0.04	29.1	<0.07	0.75	1.32	0.60	6.45	2.30	28.0	11.0	55.1	13.8	158	35.6	395	342	624	20.5	129	178
HH01-30	126	3.24	<0.09	32.3	<0.07	0.82	1.53	0.77	7.18	2.42	29.8	12.1	57.5	13.5	148	30.6	400	336	650	22.6	121	153

Table 2 Analytical results of rare earth elements (10-6) in zircon from Houhe intrusive complex

测点编号	年龄/Ma	Ti	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Y	ΣREE	t/℃	$K d H o$	$K d Y b$	$K d L u$
HH01-03	132	3.86	<0.12	23.8	0.07	0.92	1.23	0.65	5.46	2.12	25.9	10.6	51.3	13.6	154	30.7	365	320	664	19.6	126	154
HH01-04	128	3.93	<0.08	33.5	0.12	1.08	1.98	0.96	9.96	3.64	44.6	18.4	91.5	22.3	246	48.9	614	523	665	34.1	201	245
HH01-05	133	3.78	27.65	111.6	4.61	15.99	5.67	1.72	16.32	4.95	52.3	18.3	80.3	18.4	188	35.6	600	581	662	34.0	153	178
HH01-06	133	4.04	6.67	51.8	1.80	8.70	3.90	1.54	14.01	4.31	54.4	20.2	90.4	20.5	209	38.4	612	525	667	37.6	170	192
HH01-07	132	5.17	<0.06	25.8	<0.07	0.71	1.55	0.65	6.63	2.59	32.2	14.0	70.3	17.9	203	44.0	477	420	687	26.0	166	220
HH01-08	125	5.46	<0.10	39.4	0.07	1.34	2.10	1.13	10.59	3.75	43.4	16.9	79.0	17.7	188	36.3	543	440	692	31.5	154	182
HH01-09	125	4.41	<0.11	45.5	0.07	1.62	2.34	1.13	12.77	4.51	54.8	21.1	97.1	22.4	223	43.0	664	530	674	39.3	182	215
HH01-10	129	4.08	<0.08	29.4	<0.05	0.94	1.77	0.78	8.30	2.98	39.9	16.1	81.2	20.7	226	47.6	549	476	668	30.0	185	238
HH01-11	128	5.23	9.32	48.1	1.67	7.23	2.43	1.15	11.51	3.82	48.7	19.7	94.4	22.1	234	47.1	639	552	688	36.6	191	235
HH01-12	124	3.53	<0.07	28.2	0.10	1.55	2.69	1.29	13.15	4.13	51.1	20.3	97.3	22.0	232	46.3	650	520	657	37.7	189	231
HH01-13	132	4.91	<0.07	32.9	0.09	1.74	2.35	1.09	11.61	3.66	42.9	16.5	72.6	16.0	156	29.2	502	387	683	30.6	127	146
HH01-14	126	3.79	<0.07	38.5	0.07	1.21	2.28	0.98	9.97	3.46	42.3	16.0	73.9	16.9	179	34.3	509	419	662	29.8	146	171
HH01-15	127	4.39	<0.07	29.7	0.08	1.27	2.25	0.83	8.93	2.86	35.1	14.1	66.6	15.5	169	34.1	456	380	674	26.2	137	170
HH01-17	128	6.09	2.05	34.4	0.40	3.17	3.00	1.24	12.05	4.05	49.4	20.1	95.7	22.2	243	50.6	653	542	701	37.5	198	253
HH01-18	134	5.65	<0.09	22.7	<0.09	0.69	0.96	0.54	5.87	1.99	24.0	9.7	45.6	10.8	117	24.1	312	264	695	18.1	95	121
HH01-19	129	4.99	3.14	35.1	0.50	2.60	2.07	0.92	7.00	2.67	31.9	12.1	56.6	13.2	138	28.2	396	334	684	22.5	113	141
HH01-20	127	4.75	<0.07	22.5	0.09	0.69	1.43	0.78	7.02	2.57	31.8	13.8	68.1	17.6	196	42.6	468	405	680	25.7	160	213
HH01-21	129	<2.54	<0.07	33.2	0.06	0.72	1.81	0.87	8.70	3.13	35.7	14.1	62.5	14.5	145	29.1	437	349	-	26.2	118	145
HH01-22	128	5.49	<0.07	26.9	<0.06	<0.39	1.17	0.62	5.59	1.93	23.6	9.3	46.2	11.4	122	26.4	326	275	692	17.4	99	132
HH01-23	125	6.04	0.78	35.0	0.28	2.52	3.12	1.45	14.15	4.47	50.2	19.0	83.2	18.1	177	34.3	576	443	700	35.3	144	171
HH01-24	129	4.07	0.07	35.5	0.06	0.90	2.05	0.93	9.30	3.38	36.5	14.3	65.0	14.6	148	29.2	453	360	668	26.7	121	146
HH01-25	128	5.95	<0.09	32.9	0.06	0.70	1.74	0.81	8.28	2.94	38.4	16.1	78.1	18.8	199	42.3	521	440	699	29.9	163	212
HH01-26	127	5.03	<0.07	28.8	0.07	0.85	1.51	0.73	6.44	2.41	32.6	14.0	71.9	18.2	207	47.1	493	431	685	26.1	168	235
HH01-27	126	5.04	13.48	71.3	4.27	18.69	4.75	1.27	11.91	3.68	42.1	15.6	69.3	15.9	158	30.6	489	461	685	29.0	129	153
HH01-28	131	4.25	<0.07	45.2	0.10	1.52	2.75	1.30	13.78	4.76	57.7	22.9	106.6	24.3	251	48.0	721	580	671	42.7	205	240
HH01-29	129	2.28	0.04	29.1	<0.07	0.75	1.32	0.60	6.45	2.30	28.0	11.0	55.1	13.8	158	35.6	395	342	624	20.5	129	178
HH01-30	126	3.24	<0.09	32.3	<0.07	0.82	1.53	0.77	7.18	2.42	29.8	12.1	57.5	13.5	148	30.6	400	336	650	22.6	121	153

Fig.7 Diagrams of zircon rare earth elements from Houhe intrusive complex

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