内蒙古固阳地区新太古代变质侵入岩地球化学特征及意义

张莉莉; 代芳华; 崔加伟; 吴松; 郑海涛; 郑有业

doi:10.3799/dqkx.2014.026

内蒙古固阳地区新太古代变质侵入岩地球化学特征及意义

doi: 10.3799/dqkx.2014.026

张莉莉^1,,
代芳华²,
崔加伟¹,
吴松¹,
郑海涛²,
郑有业^{1, 2, ,}

1.
中国地质大学地球科学与资源学院, 北京 100083
2.
中国地质大学资源学院, 湖北武汉 430074

基金项目:

地质大调查项目内蒙古1∶5万南卜塔亥幅 K49E017010

地质大调查项目内蒙古1∶5万银号幅 K49E018010

区域地质调查 1212010610414

详细信息

作者简介:
张莉莉(1987-), 女, 主要从事矿床学、数字化区域地质调查等研究.E-mail: zhanglili331@163.com

通讯作者:
郑有业, E-mail: zhyouye@163.com

中图分类号: P595
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- 被引次数: 0
出版历程
- 收稿日期: 2013-04-16
- 刊出日期: 2014-03-15

Geochemistry Characteristics and Significance of Metamorphic Intrusions in Guyang Region, Inner Mongolia

1.
School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
2.
Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China

摘要

摘要: 内蒙古固阳地区新太古代变质侵入岩具明显TTG岩系特征, 符合钙碱性系列岩石的演化趋势, 且具有由早期富钙向晚期富钠演化的趋势.其SiO₂含量介于49.99%~76.08%(绝大多数为51%~67%之间), 全碱含量高(Na₂O+K₂O＞7%), 富钠(Na₂O＞3%), Na₂O/K₂O＞1, 铝含量高(Al₂O₃含量通常在13%~18%之间), Mg^#值较高(Mg^#变化范围为33~50, 均值为45).微量元素显示岩石较低的Rb/Sr比值(0.02＜Rb/Sr＜0.22, 均值为0.08), 具有明显的Nb、P和Ti负异常以及Sr正异常.稀土元素配分曲线为右倾型, 岩石强烈富集LREE, 亏损HREE, 具弱Eu正异常.利用激光等离子体质谱(LA-ICP-MS)对其锆石进行了U-Pb定年, 测得其年龄在2 500~2 520 Ma之间, 属新太古代晚期.另外, 二长花岗岩的不一致线下交点年龄为410~576 Ma, 代表着引起Pb从矿物中丢失的热事件的时间, 即可以作为"早古生代华北地台应祁连山褶皱带的闭合而向南增生"这一事件在该区的时间响应.
- 变质侵入岩 /
- 岩石学 /
- 地球化学 /
- 形成时代 /
- 固阳地区
Abstract: The Neoarchean intrusions in Guyang area, Inner Mongolia, with obvious characteristics of TTG rock series, are in line with the calc-alkaline series in the rock evolution, reflecting the trend of rock evolution from the early Ca-enriched one to later Na-enriched one. The SiO₂ content of these intrusive rocks is in the range of 49.99%-76.08% (mostly 51%-67%), with a high alkali content (Na₂O+K₂O > 7%), enriched in Na (Na₂O > 3%), Na₂O/K₂O > 1, high-alumina (Al₂O₃ content usually between 13%-18%), high Mg^# value (Mg^# ranging from 33-50, average 45). Trace elements show low Rb/Sr ratio (0.02 < Rb/Sr < 0.22, average 0.08), with significant Nb, P and Ti negative anomalies and a positive Sr anomaly. REE distribution curves show that the rocks with a weak positive Eu anomaly are strongly LREE enriched, HREE loss, belonging to a right-inclined type. The laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) was used for the zircon U-Pb dating of the intrusive rocks, and the isotope age is between 2 500 and 2 520 Ma, belonging to the Late Neoarchaean. Moreover, monzogranite in obtaining inconsistent U-Pb age settlement under the curve (410-576 Ma) represents the cause of the loss of Pb from the mineral-thermal event of the time, that can be used as the time limit of the incident in this area, what is the southward hyperplasia of North China platform in Early Paleozoic should be with the closure of Qilian fold belt.
- metamorphic intrusion /
- petrology /
- geochemistry /
- formation age /
- Guyang area

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图 1 固阳测区地质简图及采样位置分布

1.中、新生界；2.晚三叠世玉元城岩体；3.早二叠世西营子岩体；4.早泥盆世柳卜沟岩体；5.新太古界色尔腾山岩群；6.中元古界渣尔泰山群；7.新太古代斜长角闪岩；8.新太古代片麻状闪长岩、石英闪长岩、石英二长闪长岩；9.片麻状二长花岗岩、二长花岗岩；10.新太古代变质深成岩；11.采样点；12.断层

Fig. 1. Sketch geological map and sampling sites of the igneous rocks in Guyang

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图 2 固阳地区变质侵入岩An-Ab-Or关系

Fig. 2. Relation of An-Ab-Or from metamorphic intrusion in Guyang area

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图 3 固阳地区变质侵入岩的K-Na-Ca关系(a)和固阳地区变质侵入岩的CaO-Na₂O-K₂O关系(b)

图a中TTG和钙碱性的趋势线及埃达克岩的区域见Martin et al.(2005)；图中部分数据引自北京地大固阳幅区调资料(张维杰等，2000)

Fig. 3. Relation of K-Na-Ca from metamorphic intrusion in Guyang area (a) and relation of CaO-Na₂O-K₂O from metamorphic intrusion in Guyang area (b)

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图 4 固阳地区侵入岩微量元素蛛网图(a)、斜长角闪岩及闪长岩(b)、石英闪长岩(c)和花岗闪长岩及二长花岗岩(d)稀土元素配分曲线(球粒陨石标准据Sun and McDonough, 1989)

Fig. 4. The trace elements spidergram (a), the chondrite-normalized REE patterns of amphibolites and diorites (b), quartz diorite (c) and granodiorite and monzonitic granite (d) of metamorphic intrusion in Guyang area

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图 5 固阳地区新太古代变质侵入岩锆石阴极发光(CL)图像特征

圆圈示激光束斑的剥蚀范围；数字为该点的²⁰⁷Pb/²⁰⁶Pb年龄，单位为Ma

Fig. 5. CL imagines for zircons from the Neoarchaean intrusive rocks in Guyang area

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图 6 固阳地区变质侵入岩锆石U-Pb一致曲线(a)及年龄分布(b)

Fig. 6. U-Pb concordia diagram for zircons from the metamorphic intrusive rocks in Guyang area (a) and weighted average of U-Pb isotopic age (b)

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图 7 固阳地区变质侵入岩R₁-R₂构造环境判别

1.幔源花岗岩；2.板块碰撞前的；3.碰撞后的抬升；4.造山晚期的；5.非造山的；6.同碰撞期的；7.造山期后的；○为花岗闪长岩；□为石英闪长岩；△为二长花岗岩

Fig. 7. R₁-R₂ from metamorphic intrusion in Guyang area

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表 1 固阳地区新太古代变质侵入岩主量元素(%)、微量和稀土元素(10^-6)分析及有关参数

Table 1. Major, trace and rare-earth element compositions of the Neoarchaean intrusive rocks in Guyang area

样号	PM204YQ17-1	PM311YQ1-1	PM310YQ6-1	PM404YQ35-1	D7034YQ-1	D7035YQ-1	PM704YQ5-1	PM311YQ13-1	PM704YQ13-1	文圪气YQ-1	文圪气YQ-2	杨家店YQ-2	杨家店YQ-4
岩石名称	中细粒二长花岗岩	片麻状二长花岗岩	片麻状花岗闪长岩	中细粒石英闪长岩	石英二长闪长岩	石英闪长岩	中细粒石英闪长岩	糜棱岩化闪长岩	蚀变斜长角闪岩	细粒含铁角闪岩	斜长角闪岩	细粒含铁角闪岩	细粒含铁角闪岩
SiO₂	72.31	76.08	60.05	62.50	64.53	51.63	67.12	49.99	56.42	32.96	39.43	37.49	33.50
TiO₂	0.26	0.07	0.67	0.36	0.61	1.05	0.38	1.68	0.71	1.41	0.84	2.37	1.42
Al₂O₃	14.37	13.76	17.42	17.87	16.78	16.20	15.97	14.24	16.48	2.06	2.95	6.87	3.55
Fe₂O₃	1.59	0.01	1.81	2.94	2.21	4.88	2.13	4.11	3.60	14.43	8.20	13.63	11.91
FeO	0.42	0.53	4.10	1.63	1.08	4.88	1.00	8.55	3.53	10.20	7.70	9.00	9.40
MnO	0.02	0.01	0.09	0.11	0.07	0.14	0.03	0.19	0.10	0.25	0.16	0.53	0.24
MgO	0.58	0.24	2.87	1.65	0.83	5.12	1.61	6.04	3.81	11.07	12.94	6.72	9.28
CaO	2.05	0.33	5.63	5.46	2.34	7.19	1.80	9.11	5.40	20.63	21.93	19.37	22.16
Na₂O	4.02	3.85	3.35	3.36	3.93	3.56	4.37	3.08	3.98	0.37	0.45	1.02	0.77
K₂O	2.98	4.04	2.42	1.64	5.34	1.62	3.41	0.37	3.27	0.05	0.95	0.50	0.39
P₂O₅	0.06	0.03	0.22	0.14	0.34	0.53	0.12	0.22	0.32	2.49	2.94	1.10	2.30
H₂Op	0.97	0.69	0.97	1.99	1.36	2.72	1.62	2.05	1.93	1.20	0.75	0.89	1.09
CO₂	0.14	0.10	0.10	0.12	0.18	0.14	0.18	0.16	0.12	2.61	0.50	0.12	3.71
LOI	0.80	0.66	0.55	1.79	1.22	2.39	1.58	1.40	1.62	2.88	0.17	0.18	3.66
Q	32.89	37.26	13.69	23.36	16.18	3.54	23.20	2.57	4.91	0.00	0.00	1.93	0.00
C	0.93	2.53	0.00	0.94	1.01	0.00	2.10	0.00	0.00	0.00	0.00	0.00	0.00
Or	17.87	24.15	14.51	9.93	32.21	9.90	20.59	2.24	19.81	0.00	0.00	3.00	0.00
Ab	34.44	32.88	28.71	29.08	33.87	31.08	37.71	26.68	34.46	0.00	0.00	8.74	0.00
An	9.96	1.48	25.65	26.91	9.81	24.17	8.40	24.50	17.82	3.97	3.26	12.85	5.34
Di	0.00	0.00	1.12	0.00	0.00	7.55	0.00	16.73	6.14	69.23	71.05	41.24	63.70
Hy	1.47	1.48	11.88	4.40	2.12	13.19	4.11	17.42	9.41	0.00	0.00	0.00	0.00
Mt	0.67	0.01	2.66	4.37	1.98	7.31	2.26	6.11	5.35	21.81	12.07	20.04	18.19
Ⅱ	0.50	0.13	1.29	0.70	1.18	2.06	0.74	3.27	1.38	2.79	1.62	4.57	2.84
Ap	0.13	0.07	0.49	0.31	0.76	1.20	0.27	0.49	0.72	5.67	6.52	2.44	5.29
No	12.63	2.20	30.88	31.63	12.65	28.00	10.02	31.47	20.54			42.37
Di	85.20	94.29	56.91	62.37	82.26	44.52	81.50	31.49	59.18			13.67
σ	1.67	1.88	1.95	1.28	3.99	3.11	2.51	1.70	3.92	-0.02	-0.55	-0.42	-0.14
Si	6.05	2.77	19.73	14.71	6.20	25.52	12.86	27.27	20.95	30.65	42.79	21.77	29.23
Fl	77.35	95.99	50.61	47.80	79.84	41.88	81.21	27.47	57.31	2.00	6.00	7.28	4.97
Ar	2.49	3.55	1.67	1.55	2.88	1.57	2.56	1.35	1.99	1.04	1.12	1.12	1.09
Na₂O/K₂O	1.35	0.95	1.38	2.05	0.74	2.20	1.28	8.32	1.22	7.40	0.47	2.04	1.97
Mg^#	0.36	0.44	0.47	0.41	0.33	0.50	0.50	0.47	0.50	0.46	0.61	0.36	0.45
Ba	828.00	1 422.00	1 096.00	637.00	1 970.00	1 077.00	1 059.00	178.00	1 235.00	55.90	421.00	898.00	189.00
Rb	52.50	70.90	61.50	33.60	95.60	37.40	81.40	9.20	87.80	1.80	31.30	6.30	11.20
Sr	430.00	326.00	494.00	635.00	821.00	970.00	580.00	515.00	914.00	461.00	508.00	941.00	411.00
Zr	132.00	91.60	148.00	95.30	192.00	167.00	106.00	116.00	122.00	14.70	12.50	132.00	29.80
Nb	2.75	1.58	5.90	4.44	9.28	12.30	3.45	8.90	5.95	1.20	1.23	8.44	3.17
Th	4.62	0.94	4.20	1.61	3.15	1.95	0.51	2.19	0.46	0.85	0.82	3.53	1.34
Ga	18.40	13.60	18.70	19.90	17.00	20.40	17.80	21.60	22.60	9.87	6.61	22.40	14.00
Ni	3.28	6.25	13.80	6.07	6.76	68.60	29.80	43.30	32.40	48.80	77.60	13.40	33.40
V	24.7	17.0	121.0	59.4	70.0	148.0	61.7	316.0	144.0	673.0	320.0	608.0	661.0
Cr	3.5	3.5	28.5	13.5	12.5	129.0	78.4	164.0	73.0	73.0	152.0	33.9	59.0
Hf	5.3	2.7	4.7	3.2	6.7	4.6	4.4	2.6	3.9	0.6	0.3	4.0	1.1
Cs	0.90	2.27	1.2	1.02	1.04	1.06	1.39	0.96	1.03	0.92	1.15	0.86	1.09
Sc	1.57	1.10	15.20	9.06	3.67	24.30	3.90	46.50	24.30	82.40	83.80	38.50	68.00
Ta	0.096	0.420	0.360	0.260	0.320	0.590	0.330	0.620	0.140	0.100	0.100	0.800	0.160
Co	2.72	2.16	17.70	6.71	11.00	30.50	8.85	44.60	20.20	83.30	51.00	46.90	60.10
Be	0.98	1.06	1.30	1.01	1.23	1.35	1.37	0.98	2.08	0.32	0.26	2.81	0.59
U	0.230	0.200	0.630	0.370	0.320	0.320	0.180	0.410	0.088	0.200	0.170	0.830	1.150
La	28.29	9.59	23.40	17.61	56.37	69.68	15.66	20.82	37.35	19.53	21.44	65.67	24.63
Ce	48.97	11.63	46.75	33.75	95.15	143.70	25.18	44.02	77.92	47.72	47.46	159.10	57.60
Pr	4.55	1.35	6.15	4.29	10.18	18.43	2.75	5.98	10.10	8.23	7.25	23.53	8.93
Nd	13.99	3.53	21.78	15.91	34.14	69.80	8.94	24.52	38.78	36.56	34.20	106.80	37.84
Sm	1.68	0.60	4.18	3.00	4.49	11.24	1.34	5.42	7.27	8.39	7.41	22.75	8.01
Eu	0.83	0.64	1.15	0.97	1.81	2.80	0.72	1.80	1.59	2.21	2.03	6.59	2.15
Gd	1.00	0.37	3.65	2.63	2.80	7.78	0.92	5.41	5.05	6.58	6.02	17.42	6.51
Tb	0.14	0.05	0.57	0.41	0.36	1.09	0.13	0.91	0.72	0.82	0.73	2.49	0.90
Dy	0.65	0.26	3.14	2.20	1.70	5.51	0.66	5.45	3.74	3.80	3.15	11.71	4.43
Ho	0.11	0.05	0.64	0.45	0.31	1.09	0.13	1.10	0.70	0.62	0.54	2.09	0.81
Er	0.25	0.14	1.71	1.20	0.69	2.61	0.29	3.09	1.72	1.20	1.10	4.66	1.83
Tm	0.04	0.02	0.27	0.19	0.09	0.38	0.04	0.47	0.25	0.14	0.14	0.59	0.24
Yb	0.20	0.15	1.71	1.14	0.56	2.17	0.24	2.92	1.43	0.72	0.70	3.19	1.31
Lu	0.04	0.03	0.26	0.19	0.09	0.30	0.04	0.45	0.21	0.10	0.09	0.47	0.19
Y	1.95	1.26	15.65	11.28	6.51	25.75	2.67	27.45	15.61	12.29	11.74	44.30	17.80
∑REE	102.69	29.67	131.01	95.22	215.25	362.33	59.71	149.81	202.44	148.91	144.00	471.36	173.18
∑Ce	98.31	27.34	103.41	75.53	202.14	315.65	54.59	102.56	173.01	122.64	119.79	384.44	139.16
∑Y	4.38	2.33	27.60	19.69	13.11	46.68	5.12	47.25	29.43	26.27	24.21	86.92	34.02
∑Ce/∑Y	22.45	11.73	3.75	3.84	15.42	6.76	10.66	2.17	5.88	4.67	4.95	4.42	4.09
(La/Yb)_N	93.18	42.11	9.01	10.18	66.31	21.15	42.98	4.70	17.21	17.87	20.18	13.56	12.39
Sr/Y	220.510	258.730	31.565	56.294	126.110	37.670	217.230	18.761	58.552	37.510	43.271	21.242	23.090
Rb/Sr	0.12	0.22	0.12	0.05	0.12	0.04	0.14	0.02	0.10	0.00	0.06	0.01	0.03
δEu	1.81	3.87	0.88	1.03	1.46	0.87	1.88	1.01	0.76	0.88	0.90	0.97	0.88
注：样品测试由国土资源部武汉矿产资源监督检测中心分析.

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表 2 固阳地区新太古代变质侵入岩锆石LA-ICP-MS同位素测年结果

Table 2. LA-ICP-MS U-Th-Pb analytical data of zircon from the Neoarchaean intrusive rocks in Guyang area

分析点	U²³⁸	Th²³²	Th/U	²⁰⁶Pb/²³⁸U		²⁰⁷Pb/²³⁵U		pr	²³⁸U/²³²Th		²⁰⁷Pb/²⁰⁶Pb		²⁰⁷Pb/²³⁵U		²⁰⁶Pb/²³⁸U
分析点	(μg/g)		Th/U	比值	1s	比值	1s	pr	比值	1s	比值	1s	比值	1s	比值	1s
PM704-01	325	201.0	0.62	9.885 22	0.087 79	0.448 64	0.002 84	0.90	1.62	0.02	2 451	7	2 424	8	2 389	13
PM704-02	637	341.0	0.53	10.844 20	0.081 12	0.471 96	0.002 99	0.90	1.87	0.02	2 521	6	2 510	7	2 492	13
PM704-03	115	94.1	0.82	10.870 12	0.144 78	0.474 06	0.004 60	0.90	1.23	0.01	2 524	11	2 512	12	2 501	20
PM704-04	459	381.0	0.83	11.352 42	0.091 18	0.496 40	0.003 16	0.90	1.21	0.01	2 515	6	2 553	7	2 598	14
PM704-05	602	467.0	0.78	10.980 09	0.079 95	0.478 50	0.002 91	0.90	1.29	0.01	2 521	6	2 521	7	2 521	13
PM704-06	404	406.0	1.01	9.655 20	0.079 83	0.421 11	0.002 57	0.90	0.99	0.01	2 518	7	2 402	8	2 266	12
PM704-07	299	205.0	0.69	10.938 32	0.095 74	0.477 88	0.003 02	0.90	1.46	0.01	2 514	7	2 518	8	2 518	13
PM704-08	311	200.0	0.64	10.202 07	0.092 27	0.441 60	0.002 83	0.90	1.55	0.02	2 529	7	2 453	8	2 358	13
PM704-09	315	162.0	0.52	10.854 60	0.096 50	0.469 00	0.003 22	0.90	1.94	0.02	2 533	7	2 511	8	2 479	14
PM704-10	118	75.1	0.63	10.230 95	0.115 80	0.460 55	0.003 55	0.90	1.57	0.02	2 464	10	2 456	10	2 442	16
PM704-11	302	176.0	0.58	10.681 51	0.099 31	0.468 81	0.003 08	0.90	1.72	0.02	2 504	8	2 496	9	2 478	14
PM704-12	1 613	209.0	0.13	9.576 43	0.073 73	0.423 60	0.002 96	0.90	7.72	0.08	2 490	6	2 395	7	2 277	13
PM704-13	305	126.0	0.41	10.170 94	0.098 30	0.442 93	0.003 48	0.90	2.42	0.02	2 517	7	2 450	9	2 364	16
PM704-14	570	434.0	0.76	10.784 66	0.075 50	0.474 07	0.002 86	0.90	1.31	0.01	2 501	5	2 505	7	2 501	13
PM704-15	2 067	595.0	0.29	10.880 39	0.123 66	0.475 02	0.005 38	0.90	3.48	0.03	2 513	9	2 513	11	2 506	23
PM704-16	2 179	608.0	0.28	10.103 19	0.115 94	0.449 00	0.004 01	0.91	3.59	0.04	2 489	25	2 444	11	2 391	18
PM704-17	334	186.0	0.56	10.163 77	0.113 56	0.459 33	0.002 94	0.90	1.80	0.02	2 456	11	2 450	10	2 437	13
PM704-18	313	200.0	0.64	10.169 59	0.149 37	0.444 06	0.003 20	0.90	1.56	0.02	2 514	15	2 450	14	2 369	14
PM704-19	479	293.0	0.61	10.942 03	0.184 44	0.473 76	0.003 04	0.90	1.63	0.02	2 530	20	2 518	16	2 500	13
PM704-20	456	192.0	0.42	9.888 82	0.203 43	0.429 28	0.003 52	0.90	2.37	0.02	2 528	23	2 424	19	2 302	16
PM311-01	397	347.0	0.87	10.765 41	0.238 36	0.472 80	0.003 40	0.90	1.14	0.01	2 504	27	2 503	21	2 496	15
PM311-02	399	562.0	1.41	10.277 59	0.197 03	0.455 97	0.003 17	0.90	0.71	0.01	2 486	23	2 460	18	2 422	14
PM311-03	607	705.0	1.16	11.031 67	0.171 90	0.491 11	0.003 12	0.90	0.86	0.01	2 481	18	2 526	15	2 575	13
PM311-04	366	302.0	0.82	10.860 13	0.159 56	0.490 81	0.003 78	0.90	1.21	0.01	2 458	15	2 511	14	2 574	16
PM311-05	547	239.0	0.44	11.495 95	0.134 42	0.491 43	0.003 74	0.90	2.29	0.02	2 550	10	2 564	11	2 577	16
PM311-06	448	827.0	1.84	11.388 67	0.170 79	0.490 56	0.005 83	0.90	0.54	0.01	2 541	12	2 555	14	2 573	25
PM311-07	538	370.0	0.69	8.525 99	0.114 01	0.397 91	0.002 98	0.90	1.45	0.01	2 406	27	2 289	12	2 159	14
PM311-08	360	307.0	0.85	10.596 79	0.106 16	0.475 26	0.003 33	0.90	1.17	0.01	2 471	8	2 488	9	2 507	15
PM311-09	407	278.0	0.68	10.093 25	0.120 32	0.455 98	0.005 47	0.90	1.46	0.01	2 460	9	2 443	11	2 422	24
PM311-10	588	316.0	0.54	9.296 99	0.114 30	0.445 80	0.003 95	0.90	1.86	0.02	2 356	10	2 368	11	2 377	18
PM311-11	180	169.0	0.94	10.665 30	0.141 45	0.474 15	0.003 71	0.90	1.06	0.01	2 484	12	2 494	12	2 502	16
PM311-12	218	184.0	0.84	10.770 43	0.128 15	0.475 74	0.004 19	0.90	1.18	0.01	2 497	10	2 504	11	2 509	18
PM311-13	677	942.0	1.39	11.782 85	0.148 38	0.490 46	0.004 24	0.90	0.72	0.01	2 592	10	2 587	12	2 573	18
PM311-14	449	325.0	0.72	11.353 13	0.103 56	0.490 81	0.004 01	0.90	1.38	0.01	2 533	7	2 553	9	2 574	17
PM311-15	1 282	342.0	0.27	10.494 86	0.101 67	0.464 39	0.002 83	0.85	3.74	0.04	2 496	20	2 479	9	2 459	12
PM311-16	411	291.0	0.71	9.559 09	0.261 69	0.422 80	0.004 78	0.89	1.41	0.01	2 497	51	2 393	25	2 273	22
PM311-17	588	235.0	0.40	10.666 22	0.105 60	0.460 67	0.003 18	0.89	2.51	0.03	2 537	21	2 494	9	2 443	14
PM311-18	609	278.0	0.46	9.953 40	0.104 88	0.439 86	0.003 28	0.89	2.19	0.02	2 499	22	2 430	10	2 350	15
PM311-19	529	242.0	0.46	9.521 61	0.133 41	0.418 76	0.003 61	0.90	2.19	0.02	2 507	28	2 390	13	2 255	16
PM311-20	271	264.0	0.98	10.653 06	0.117 40	0.455 18	0.003 59	0.90	1.02	0.01	2 547	9	2 493	10	2 418	16
PM311-21	311	266.0	0.86	11.109 76	0.116 93	0.475 07	0.003 53	0.90	1.17	0.01	2 543	9	2 532	10	2 506	15
PM204-1	367	231.0	0.63	11.573 99	0.100 89	0.500 69	0.003 93	0.90	1.59	0.02	2 521	7	2 571	8	2 617	17
PM204-2	400	247.0	0.62	10.919 37	0.096 72	0.486 12	0.003 26	0.90	1.62	0.02	2 473	7	2 516	8	2 554	14
PM204-3	420	343.0	0.82	10.443 39	0.104 31	0.462 63	0.004 57	0.90	1.22	0.01	2 487	8	2 475	9	2 451	20
PM204-4	1 689	1 438.0	0.85	12.623 01	0.087 10	0.526 85	0.003 23	0.90	1.18	0.01	2 582	5	2 652	6	2 728	14
PM204-5	192	420.0	2.18	9.800 47	0.331 45	0.438 14	0.006 44	0.95	0.46	0.01	2 479	64	2 416	31	2 342	29
PM204-6	2 025	2 172.0	1.07	7.355 68	0.163 64	0.323 36	0.006 51	0.90	0.93	0.01	2 494	17	2 156	20	1 806	32
PM204-7	3 003	173.0	0.06	10.989 70	0.070 58	0.501 15	0.003 04	0.90	17.35	0.17	2 437	5	2 522	6	2 619	13
PM204-8	1 189	361.0	0.30	10.630 89	0.087 43	0.462 24	0.002 92	0.90	3.29	0.03	2 526	18	2 491	8	2 449	13
PM204-9	693	358.0	0.52	11.135 07	0.115 31	0.480 80	0.004 58	0.90	1.93	0.02	2 533	8	2 534	10	2 531	20
PM204-10	551	534.0	0.97	9.550 39	0.105 52	0.424 72	0.003 84	0.90	1.03	0.01	2 486	8	2 392	10	2 282	17
PM204-11	2465	1 124.0	0.46	6.979 45	0.054 74	0.323 98	0.002 27	0.90	2.19	0.02	2 411	6	2 109	7	1809	11
PM204-12	899	156.0	0.17	9.961 12	0.089 19	0.440 85	0.003 78	0.90	5.76	0.06	2 492	7	2 431	8	2 354	17
PM204-13	182	379.0	2.09	10.766 34	1.066 06	0.422 41	0.012 81	0.94	0.48	0.01	2 697	177	2 503	92	2 271	58
PM204-14	2 852	171.0	0.06	9.903 23	0.171 89	0.445 29	0.007 17	0.9	16.65	0.17	2 463	13	2 426	16	2 374	32
PM204-15	2 597	567.0	0.22	10.642 16	0.115 77	0.460 69	0.004 76	0.9	4.58	0.05	2 529	8	2 492	10	2 443	21
PM204-16	578	248.0	0.43	13.314 90	0.151 76	0.560 86	0.005 58	0.9	2.33	0.02	2 575	9	2 702	11	2 870	23
PM204-17	133	405.0	3.04	10.255 24	0.587 58	0.435 89	0.009 08	0.95	0.33	0.01	2 564	105	2 458	53	2 332	41
PM204-18	229	322.0	1.41	9.412 29	0.435 52	0.411 69	0.005 11	0.92	0.71	0.01	2 516	83	2 379	42	2 223	23
PM204-19	844	637.0	0.75	10.069 90	0.225 27	0.442 03	0.004 50	0.91	1.33	0.01	2 510	42	2 441	21	2 360	20
PM204-20	197	316.0	1.60	9.963 15	0.203 50	0.449 56	0.003 57	0.90	0.62	0.01	2 457	24	2 431	19	2 393	16
PM204-21	372	152.0	0.41	10.173 18	0.248 11	0.462 81	0.003 50	0.90	2.46	0.02	2 442	31	2 451	23	2 452	15
注：测试单位为中国地质大学(武汉)地质过程与矿产资源国家重点实验室，2008年.

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