Geochronology and Genesis of the Zhaobinggou Fe-P Deposit, Northern Hebei, China

doi:10.19657/j.geoscience.1000-8527.2023.122

Abstract

Abstract:

In order to investigate the genesis of the iron-phosphorus (Fe-P) deposits hosted in the Archean metamorphic series in Northern Hebei-Western Liaoning, we carried out petrographic, geochronological, and geochemical studies on the typical Zhaobinggou deposit.Field observations show that the so-called “the banded Fe-P ore” is hosted as veins in the biotite-hornblende-plagioclase gneiss, and is characterized by the gneissic schistosity with cross-cutting Fe-P veins.The formation of the vein folds is associated with the post tectonic deformation.Zircons in the Fe-P-bearing biotite-hornblende-plagioclase gneiss are intergrown with the Fe-Ti oxides and apatite.Cathodoluminescence imaging of these zircon grains shows no or weak zoning or patchy texture, which is typical of mafic magmatic origin.Zircon U-Pb dating using LA-ICP-MS technique obtained a weighted average age at (282±3) Ma (MSWD=0.78), which constrains the Fe-P mineralization to be in the early Permian, rather than Neoarchean as supposed previously.Comprehensive comparison studies show that the geochemical characteristics and the ore-forming age of the Zhaobinggou Fe-P-bearing biotite-hornblende-plagioclase gneiss are similar to those of the regional mafic pyroxenite-hornblendite, which is considered as the parent rock of the Fe-P mineralization.The results indicate that the Zhaobinggou Fe-P deposit is associated with Phanerozoic Alaskan-type mafic-ultramafic magmatism along the Hongshila-Damiao fault zone, but not related to any metamorphism as reported previously.Further investigations are needed for revealing the genesis of other similar deposits.

Key words: Fe-P deposit, ore-forming age, ore genesis, Alaskan-type complex, North China Craton

CLC Number:

P611

WANG Yi, LI Lixing, LI Houmin, LI Xiaosai, MA Lanjing, XING Yuliang, SUN Xinyu, DAI Yang, WANG Xiaohui. Geochronology and Genesis of the Zhaobinggou Fe-P Deposit, Northern Hebei, China[J]. Geoscience, 2024, 38(01): 46-55.

Figures/Tables 8

References 43

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样号	SiO₂	TiO₂	Al₂O₃		TFe₂O₃	MnO		MgO		CaO	Na₂O	K₂O	P₂O₅	烧失量		总量		Li	Be	Sc
ZBG-2	25.44	6.50	10.18		29.32	0.22		4.11		12.43	1.59	1.30	6.38	1.91		99.38		6.26	0.16	26.00
ZBG-3	14.15	10.74	5.53		38.71	0.35		3.57		13.34	0.32	1.84	8.21	2.65		99.41		12.00	0.16	19.90
ZBG-5	15.56	10.36	4.93		47.41	0.26		5.10		9.40	0.47	0.25	5.56	0.18		99.49		5.00	0.14	26.40
ZBG-11	29.00	7.52	5.95		32.75	0.25		7.75		11.03	0.86	0.26	3.99	0.13		99.49		3.40	0.22	48.70
ZBG-12	25.88	8.24	7.18		39.10	0.27		6.44		7.17	1.07	0.95	3.04	0.17		99.50		7.17	0.25	27.40
样号	V	Cr	Co		Ni	Cu		Zn		Ga	Rb	Sr	Y	Zr		Nb		Cs	Ba	Hf
ZBG-2	1113.00	16.60	99.70		45.00	99.60		200.00		20.70	19.70	383.00	66.20	7.66		2.86		0.98	802.00	0.38
ZBG-3	1716.00	26.20	126.00		66.10	297.00		201.00		21.40	28.30	410.00	80.00	7.68		6.02		2.81	924.00	0.47
ZBG-5	2086.00	375.00	172.00		190.00	133.00		416.00		32.60	2.10	307.00	60.00	11.70		5.63		0.10	236.00	0.73
ZBG-11	1251.00	192.00	128.00		117.00	96.60		288.00		22.30	1.42	328.00	54.50	25.80		5.56		0.07	152.00	1.25
ZBG-12	1608.00	624.00	139.00		167.00	124.00		368.00		29.20	8.92	308.00	35.60	13.20		5.90		0.31	571.00	0.72
样号	Ta	W	Tl		Pb	Bi		Th		U	La	Ce	Tb	Dy		Ho		Er	Tm	Yb
ZBG-2	0.16	0.26	0.13		2.35	0.04		0.45		0.65	59.80	140.00	2.51	12.10		2.22		5.54	0.76	4.02
ZBG-3	0.28	4.12	0.23		1.99	0.42		0.54		1.10	75.00	183.00	3.28	15.30		2.76		6.73	0.90	4.59
ZBG-5	0.26	0.07	0.12		1.34	0.01		0.30		0.79	53.40	126.00	2.36	11.40		2.04		5.01	0.68	3.73
ZBG-11	0.27	0.12	0.18		2.31	0.02		0.29		1.53	41.70	100.00	2.19	10.60		1.97		4.82	0.68	3.69
ZBG-12	0.26	0.25	0.21		2.73	0.02		0.27		1.55	31.40	73.50	1.38	6.69		1.23		3.11	0.44	2.46
样号	Lu	ΣREE		LREE			HREE		LREE/HREE			(La/Yb)_N			δEu		δCe
ZBG-2	0.55	391.23		346.52			44.71		7.75			10.67			0.89		0.98
ZBG-3	0.61	510.44		435.47			56.97		7.96			11.72			0.80		0.99
ZBG-5	0.50	357.46		315.84			41.62		7.59			10.27			0.80		0.97
ZBG-11	0.51	294.09		255.33			38.76		6.59			8.11			0.84		0.97
ZBG-12	0.33	209.33		184.16			25.17		7.32			9.16			0.86		0.97

样号	SiO₂	TiO₂	Al₂O₃		TFe₂O₃	MnO		MgO		CaO	Na₂O	K₂O	P₂O₅	烧失量		总量		Li	Be	Sc
ZBG-2	25.44	6.50	10.18		29.32	0.22		4.11		12.43	1.59	1.30	6.38	1.91		99.38		6.26	0.16	26.00
ZBG-3	14.15	10.74	5.53		38.71	0.35		3.57		13.34	0.32	1.84	8.21	2.65		99.41		12.00	0.16	19.90
ZBG-5	15.56	10.36	4.93		47.41	0.26		5.10		9.40	0.47	0.25	5.56	0.18		99.49		5.00	0.14	26.40
ZBG-11	29.00	7.52	5.95		32.75	0.25		7.75		11.03	0.86	0.26	3.99	0.13		99.49		3.40	0.22	48.70
ZBG-12	25.88	8.24	7.18		39.10	0.27		6.44		7.17	1.07	0.95	3.04	0.17		99.50		7.17	0.25	27.40
样号	V	Cr	Co		Ni	Cu		Zn		Ga	Rb	Sr	Y	Zr		Nb		Cs	Ba	Hf
ZBG-2	1113.00	16.60	99.70		45.00	99.60		200.00		20.70	19.70	383.00	66.20	7.66		2.86		0.98	802.00	0.38
ZBG-3	1716.00	26.20	126.00		66.10	297.00		201.00		21.40	28.30	410.00	80.00	7.68		6.02		2.81	924.00	0.47
ZBG-5	2086.00	375.00	172.00		190.00	133.00		416.00		32.60	2.10	307.00	60.00	11.70		5.63		0.10	236.00	0.73
ZBG-11	1251.00	192.00	128.00		117.00	96.60		288.00		22.30	1.42	328.00	54.50	25.80		5.56		0.07	152.00	1.25
ZBG-12	1608.00	624.00	139.00		167.00	124.00		368.00		29.20	8.92	308.00	35.60	13.20		5.90		0.31	571.00	0.72
样号	Ta	W	Tl		Pb	Bi		Th		U	La	Ce	Tb	Dy		Ho		Er	Tm	Yb
ZBG-2	0.16	0.26	0.13		2.35	0.04		0.45		0.65	59.80	140.00	2.51	12.10		2.22		5.54	0.76	4.02
ZBG-3	0.28	4.12	0.23		1.99	0.42		0.54		1.10	75.00	183.00	3.28	15.30		2.76		6.73	0.90	4.59
ZBG-5	0.26	0.07	0.12		1.34	0.01		0.30		0.79	53.40	126.00	2.36	11.40		2.04		5.01	0.68	3.73
ZBG-11	0.27	0.12	0.18		2.31	0.02		0.29		1.53	41.70	100.00	2.19	10.60		1.97		4.82	0.68	3.69
ZBG-12	0.26	0.25	0.21		2.73	0.02		0.27		1.55	31.40	73.50	1.38	6.69		1.23		3.11	0.44	2.46
样号	Lu	ΣREE		LREE			HREE		LREE/HREE			(La/Yb)_N			δEu		δCe
ZBG-2	0.55	391.23		346.52			44.71		7.75			10.67			0.89		0.98
ZBG-3	0.61	510.44		435.47			56.97		7.96			11.72			0.80		0.99
ZBG-5	0.50	357.46		315.84			41.62		7.59			10.27			0.80		0.97
ZBG-11	0.51	294.09		255.33			38.76		6.59			8.11			0.84		0.97
ZBG-12	0.33	209.33		184.16			25.17		7.32			9.16			0.86		0.97

样品编号	元素含量(10^-6)				同位素比值						U-Pb年龄(Ma)
样品编号	Pb	Th	U	Th/U	²⁰⁷Pb/ ²³⁵U	2σ	²⁰⁶Pb/ ²³⁸U	2σ	²⁰⁷Pb/ ²⁰⁶Pb	2σ	²⁰⁷Pb/ ²³⁵U	2σ	²⁰⁶Pb/ ²³⁸U	2σ	²⁰⁷Pb/ ²⁰⁶Pb	2σ
ZBG.12.01	43.3	35.7	170.0	0.21	0.2700	0.0680	0.0452	0.0022	0.0440	0.0110	220.0	53.0	285.0	14.0	290.0	350.0
ZBG.12.02	43.5	49.6	233.3	0.21	0.2970	0.0670	0.0443	0.0021	0.0490	0.0110	238.0	51.0	279.0	13.0	150.0	340.0
ZBG.12.03	96.2	119.3	460.5	0.26	0.3400	0.0560	0.0432	0.0017	0.0558	0.0094	279.0	42.0	273.0	10.0	260.0	300.0
ZBG.12.04	13.5	2.2	71.4	0.03	0.3500	0.1300	0.0459	0.0038	0.0440	0.0190	206.0	77.0	288.0	24.0	810.0	380.0
ZBG.12.05	201.5	202.7	1055.6	0.19	0.3600	0.0370	0.0451	0.0009	0.0583	0.0063	318.0	26.0	284.0	5.8	490.0	190.0
ZBG.12.06	48.3	50.8	261.4	0.19	0.2830	0.0620	0.0434	0.0021	0.0480	0.0110	240.0	50.0	273.0	13.0	30.0	350.0
ZBG.12.07	95.7	75.2	502.9	0.15	0.3430	0.0500	0.0452	0.0015	0.0537	0.0078	285.0	38.0	285.6	9.1	230.0	260.0
ZBG.12.08	327.3	67.8	1759.1	0.04	0.3270	0.0250	0.0460	0.0009	0.0531	0.0040	285.0	19.0	289.6	5.5	280.0	150.0
ZBG.12.09^*	1566.8	5120.8	1480.8	3.46	2.1110	0.0770	0.1812	0.0028	0.0845	0.0029	1150.0	25.0	1075.0	16.0	1299.0	69.0
ZBG.12.10	78.6	66.7	423.9	0.16	0.3050	0.0440	0.0445	0.0016	0.0547	0.0078	267.0	36.0	280.7	9.7	210.0	260.0
ZBG.12.11	102.1	98.5	547.7	0.18	0.3080	0.0480	0.0451	0.0014	0.0502	0.0077	264.0	38.0	285.1	8.9	170.0	270.0
ZBG.12.12	88.4	76.7	467.7	0.16	0.3160	0.0460	0.0456	0.0018	0.0544	0.0080	272.0	37.0	287.0	11.0	240.0	260.0
ZBG.12.13	102.4	132.7	566.0	0.23	0.3070	0.0440	0.0420	0.0014	0.0547	0.0080	257.0	34.0	264.8	8.8	210.0	260.0
ZBG.12.14	144.4	181.5	788.9	0.23	0.2950	0.0380	0.0435	0.0011	0.0500	0.0067	258.0	31.0	275.3	6.8	180.0	230.0
ZBG.12.15	65.2	83.9	345.2	0.24	0.3640	0.0610	0.0445	0.0019	0.0610	0.0100	295.0	45.0	281.0	12.0	350.0	300.0
ZBG.12.16	121.0	127.9	630.5	0.20	0.4010	0.0510	0.0453	0.0014	0.0627	0.0080	326.0	37.0	285.3	8.8	510.0	250.0
ZBG.12.17	73.5	75.6	394.7	0.19	0.3290	0.0470	0.0438	0.0018	0.0556	0.0078	280.0	37.0	276.0	11.0	310.0	260.0
ZBG.12.18	111.1	108.7	600.4	0.18	0.3250	0.0400	0.0438	0.0014	0.0555	0.0073	277.0	32.0	276.0	8.8	310.0	240.0
ZBG.12.19	183.6	41.0	984.1	0.04	0.3120	0.0360	0.0455	0.0014	0.0494	0.0057	265.0	29.0	286.5	8.7	130.0	210.0
ZBG.12.20	32.6	32.5	163.4	0.20	0.3700	0.1000	0.0463	0.0031	0.0710	0.0200	266.0	69.0	291.0	19.0	0.0	410.0
ZBG.12.21	73.4	71.9	383.8	0.19	0.2970	0.0500	0.0451	0.0017	0.0485	0.0079	249.0	39.0	284.0	11.0	40.0	270.0
ZBG.12.22	131.1	135.7	716.2	0.19	0.3040	0.0380	0.0431	0.0012	0.0513	0.0063	262.0	30.0	271.8	7.2	140.0	210.0
ZBG.12.23	432.8	132.2	2267.3	0.06	0.3430	0.0250	0.0447	0.0008	0.0546	0.0039	295.0	19.0	281.8	4.9	360.0	140.0
ZBG.12.24	81.5	98.0	433.8	0.23	0.3050	0.0510	0.0436	0.0015	0.0531	0.0091	256.0	40.0	275.0	9.4	160.0	290.0
ZBG.12.25	79.2	81.9	408.7	0.20	0.3480	0.0550	0.0455	0.0016	0.0559	0.0092	290.0	42.0	287.0	9.7	240.0	290.0
ZBG.12.26	69.8	94.7	375.8	0.25	0.2930	0.0560	0.0431	0.0018	0.0474	0.0092	248.0	44.0	272.0	11.0	40.0	310.0
ZBG.12.27	293.0	415.9	1450.4	0.29	0.3610	0.0300	0.0463	0.0010	0.0578	0.0049	306.0	22.0	291.4	6.3	390.0	170.0
ZBG.12.28	89.4	77.9	380.4	0.20	0.3700	0.0530	0.0442	0.0017	0.0651	0.0099	304.0	41.0	278.0	11.0	470.0	290.0
ZBG.12.29	71.4	102.2	373.0	0.27	0.2890	0.0490	0.0445	0.0018	0.0457	0.0081	239.0	39.0	281.0	11.0	30.0	280.0
ZBG.12.30	90.1	65.6	367.8	0.18	0.3800	0.0630	0.0458	0.0018	0.0566	0.0094	310.0	46.0	288.0	11.0	330.0	290.0
ZBG.12.31	340.8	89.9	1752.6	0.05	0.3480	0.0300	0.0465	0.0009	0.0536	0.0046	296.0	23.0	292.7	5.6	290.0	160.0
ZBG.12.32^*	17.9	26.8	39.1	0.68	0.7800	0.2700	0.0979	0.0091	0.0520	0.0190	360.0	120.0	597.0	53.0	670.0	390.0
ZBG.12.33	322.5	64.1	1688.8	0.04	0.3500	0.0280	0.0461	0.0009	0.0534	0.0043	301.0	21.0	290.2	5.6	360.0	160.0
ZBG.12.34	72.0	58.6	383.0	0.15	0.3230	0.0570	0.0448	0.0019	0.0550	0.0098	261.0	43.0	282.0	12.0	110.0	300.0
ZBG.12.35	148.1	130.7	778.3	0.17	0.3060	0.0370	0.0448	0.0013	0.0491	0.0060	260.0	29.0	282.6	7.8	80.0	210.0
ZBG.12.36	69.4	107.8	362.0	0.30	0.2760	0.0570	0.0443	0.0020	0.0446	0.0097	223.0	44.0	279.0	12.0	130.0	310.0
ZBG.12.37	146.2	260.4	715.6	0.36	0.3570	0.0480	0.0461	0.0014	0.0560	0.0075	301.0	36.0	290.6	8.9	280.0	240.0
ZBG.12.38	48.7	31.8	258.5	0.12	0.2900	0.0700	0.0440	0.0025	0.0510	0.0120	234.0	53.0	277.0	16.0	80.0	360.0
ZBG.12.39	128.9	135.1	708.0	0.19	0.3460	0.0490	0.0427	0.0013	0.0568	0.0079	285.0	36.0	269.7	8.0	300.0	260.0
ZBG.12.40	91.4	97.0	507.9	0.19	0.2930	0.0450	0.0422	0.0014	0.0515	0.0079	249.0	36.0	266.5	8.6	240.0	270.0

样品编号	元素含量(10^-6)				同位素比值						U-Pb年龄(Ma)
样品编号	Pb	Th	U	Th/U	²⁰⁷Pb/ ²³⁵U	2σ	²⁰⁶Pb/ ²³⁸U	2σ	²⁰⁷Pb/ ²⁰⁶Pb	2σ	²⁰⁷Pb/ ²³⁵U	2σ	²⁰⁶Pb/ ²³⁸U	2σ	²⁰⁷Pb/ ²⁰⁶Pb	2σ
ZBG.12.01	43.3	35.7	170.0	0.21	0.2700	0.0680	0.0452	0.0022	0.0440	0.0110	220.0	53.0	285.0	14.0	290.0	350.0
ZBG.12.02	43.5	49.6	233.3	0.21	0.2970	0.0670	0.0443	0.0021	0.0490	0.0110	238.0	51.0	279.0	13.0	150.0	340.0
ZBG.12.03	96.2	119.3	460.5	0.26	0.3400	0.0560	0.0432	0.0017	0.0558	0.0094	279.0	42.0	273.0	10.0	260.0	300.0
ZBG.12.04	13.5	2.2	71.4	0.03	0.3500	0.1300	0.0459	0.0038	0.0440	0.0190	206.0	77.0	288.0	24.0	810.0	380.0
ZBG.12.05	201.5	202.7	1055.6	0.19	0.3600	0.0370	0.0451	0.0009	0.0583	0.0063	318.0	26.0	284.0	5.8	490.0	190.0
ZBG.12.06	48.3	50.8	261.4	0.19	0.2830	0.0620	0.0434	0.0021	0.0480	0.0110	240.0	50.0	273.0	13.0	30.0	350.0
ZBG.12.07	95.7	75.2	502.9	0.15	0.3430	0.0500	0.0452	0.0015	0.0537	0.0078	285.0	38.0	285.6	9.1	230.0	260.0
ZBG.12.08	327.3	67.8	1759.1	0.04	0.3270	0.0250	0.0460	0.0009	0.0531	0.0040	285.0	19.0	289.6	5.5	280.0	150.0
ZBG.12.09^*	1566.8	5120.8	1480.8	3.46	2.1110	0.0770	0.1812	0.0028	0.0845	0.0029	1150.0	25.0	1075.0	16.0	1299.0	69.0
ZBG.12.10	78.6	66.7	423.9	0.16	0.3050	0.0440	0.0445	0.0016	0.0547	0.0078	267.0	36.0	280.7	9.7	210.0	260.0
ZBG.12.11	102.1	98.5	547.7	0.18	0.3080	0.0480	0.0451	0.0014	0.0502	0.0077	264.0	38.0	285.1	8.9	170.0	270.0
ZBG.12.12	88.4	76.7	467.7	0.16	0.3160	0.0460	0.0456	0.0018	0.0544	0.0080	272.0	37.0	287.0	11.0	240.0	260.0
ZBG.12.13	102.4	132.7	566.0	0.23	0.3070	0.0440	0.0420	0.0014	0.0547	0.0080	257.0	34.0	264.8	8.8	210.0	260.0
ZBG.12.14	144.4	181.5	788.9	0.23	0.2950	0.0380	0.0435	0.0011	0.0500	0.0067	258.0	31.0	275.3	6.8	180.0	230.0
ZBG.12.15	65.2	83.9	345.2	0.24	0.3640	0.0610	0.0445	0.0019	0.0610	0.0100	295.0	45.0	281.0	12.0	350.0	300.0
ZBG.12.16	121.0	127.9	630.5	0.20	0.4010	0.0510	0.0453	0.0014	0.0627	0.0080	326.0	37.0	285.3	8.8	510.0	250.0
ZBG.12.17	73.5	75.6	394.7	0.19	0.3290	0.0470	0.0438	0.0018	0.0556	0.0078	280.0	37.0	276.0	11.0	310.0	260.0
ZBG.12.18	111.1	108.7	600.4	0.18	0.3250	0.0400	0.0438	0.0014	0.0555	0.0073	277.0	32.0	276.0	8.8	310.0	240.0
ZBG.12.19	183.6	41.0	984.1	0.04	0.3120	0.0360	0.0455	0.0014	0.0494	0.0057	265.0	29.0	286.5	8.7	130.0	210.0
ZBG.12.20	32.6	32.5	163.4	0.20	0.3700	0.1000	0.0463	0.0031	0.0710	0.0200	266.0	69.0	291.0	19.0	0.0	410.0
ZBG.12.21	73.4	71.9	383.8	0.19	0.2970	0.0500	0.0451	0.0017	0.0485	0.0079	249.0	39.0	284.0	11.0	40.0	270.0
ZBG.12.22	131.1	135.7	716.2	0.19	0.3040	0.0380	0.0431	0.0012	0.0513	0.0063	262.0	30.0	271.8	7.2	140.0	210.0
ZBG.12.23	432.8	132.2	2267.3	0.06	0.3430	0.0250	0.0447	0.0008	0.0546	0.0039	295.0	19.0	281.8	4.9	360.0	140.0
ZBG.12.24	81.5	98.0	433.8	0.23	0.3050	0.0510	0.0436	0.0015	0.0531	0.0091	256.0	40.0	275.0	9.4	160.0	290.0
ZBG.12.25	79.2	81.9	408.7	0.20	0.3480	0.0550	0.0455	0.0016	0.0559	0.0092	290.0	42.0	287.0	9.7	240.0	290.0
ZBG.12.26	69.8	94.7	375.8	0.25	0.2930	0.0560	0.0431	0.0018	0.0474	0.0092	248.0	44.0	272.0	11.0	40.0	310.0
ZBG.12.27	293.0	415.9	1450.4	0.29	0.3610	0.0300	0.0463	0.0010	0.0578	0.0049	306.0	22.0	291.4	6.3	390.0	170.0
ZBG.12.28	89.4	77.9	380.4	0.20	0.3700	0.0530	0.0442	0.0017	0.0651	0.0099	304.0	41.0	278.0	11.0	470.0	290.0
ZBG.12.29	71.4	102.2	373.0	0.27	0.2890	0.0490	0.0445	0.0018	0.0457	0.0081	239.0	39.0	281.0	11.0	30.0	280.0
ZBG.12.30	90.1	65.6	367.8	0.18	0.3800	0.0630	0.0458	0.0018	0.0566	0.0094	310.0	46.0	288.0	11.0	330.0	290.0
ZBG.12.31	340.8	89.9	1752.6	0.05	0.3480	0.0300	0.0465	0.0009	0.0536	0.0046	296.0	23.0	292.7	5.6	290.0	160.0
ZBG.12.32^*	17.9	26.8	39.1	0.68	0.7800	0.2700	0.0979	0.0091	0.0520	0.0190	360.0	120.0	597.0	53.0	670.0	390.0
ZBG.12.33	322.5	64.1	1688.8	0.04	0.3500	0.0280	0.0461	0.0009	0.0534	0.0043	301.0	21.0	290.2	5.6	360.0	160.0
ZBG.12.34	72.0	58.6	383.0	0.15	0.3230	0.0570	0.0448	0.0019	0.0550	0.0098	261.0	43.0	282.0	12.0	110.0	300.0
ZBG.12.35	148.1	130.7	778.3	0.17	0.3060	0.0370	0.0448	0.0013	0.0491	0.0060	260.0	29.0	282.6	7.8	80.0	210.0
ZBG.12.36	69.4	107.8	362.0	0.30	0.2760	0.0570	0.0443	0.0020	0.0446	0.0097	223.0	44.0	279.0	12.0	130.0	310.0
ZBG.12.37	146.2	260.4	715.6	0.36	0.3570	0.0480	0.0461	0.0014	0.0560	0.0075	301.0	36.0	290.6	8.9	280.0	240.0
ZBG.12.38	48.7	31.8	258.5	0.12	0.2900	0.0700	0.0440	0.0025	0.0510	0.0120	234.0	53.0	277.0	16.0	80.0	360.0
ZBG.12.39	128.9	135.1	708.0	0.19	0.3460	0.0490	0.0427	0.0013	0.0568	0.0079	285.0	36.0	269.7	8.0	300.0	260.0
ZBG.12.40	91.4	97.0	507.9	0.19	0.2930	0.0450	0.0422	0.0014	0.0515	0.0079	249.0	36.0	266.5	8.6	240.0	270.0