豫西济源盆地中生代泥岩地球化学特征对物源区的指示

杨文涛; 杜远生

doi:10.3799/dqkx.2017.004

豫西济源盆地中生代泥岩地球化学特征对物源区的指示

doi: 10.3799/dqkx.2017.004

杨文涛^1,,
杜远生²

1.
河南理工大学资源环境学院，河南焦作 454000
2.
中国地质大学生物地质与环境地质国家重点实验室，湖北武汉 430074

基金项目:

国家自然科学基金项目 41440016

河南省基础与前沿技术研究计划项目 152300410211

详细信息

作者简介:
杨文涛(1984-)，男，讲师，博士，从事沉积地质学研究及相关教学工作.ORCID:0000-0002-8589-3850.E-Mail: ywtao125@163.com

中图分类号: P588.22
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出版历程
- 收稿日期: 2016-07-02
- 刊出日期: 2017-01-15

Geochemistry of Mudstones from Mesozoic Jiyuan Basin,West Henan: Implications for Provenance Analysis

ang Wentao^1
,,
Du Yuansheng²

1.
Institute of Resources and Environment, Henan Polytechnic University, Jiaozuo 454000, China
2.
State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China

摘要

摘要: 秦岭造山带印支期造山作用控制着济源盆地的形成与演化，对盆地中沉积物物源进行研究，有利于恢复造山带造山-隆升的细节.通过对济源盆地中生代泥岩地球化学的系统分析，发现样品的CIA(化学风化指数)校正值在早-中三叠世、晚三叠世、早-中侏罗世和中侏罗世后期的平均值分别为68.5、76.4、86.0和73.7，这一演化特征可能反映其经历了古气候控制的化学风化过程.但是三叠纪样品CIA值明显过低，可能与源区活动的构造背景相关；ICV(成分变异指数)值显示沉积物具有初次沉积的特征，反映了源区早期发生过弧-陆碰撞或具备陆缘弧特征的克拉通基底隆升.而早-中侏罗世样品表现为高的CIA值，ICV值显示沉积物具有再循环特征，其初次沉积可能发生在弧后盆地中，后随造山带的隆升，被剥露再搬运而沉积下来.泥岩物源区构造环境判别结果显示，沉积物主要来自活动大陆边缘和被动大陆边缘，且含有较多大陆岛弧(陆缘弧)的信息.由此说明，中生代济源盆地盆缘构造活动经历了由克拉通基底隆升到造山带剥露的过程，这一过程与秦岭造山带印支期的造山作用密切相关.
- 济源盆地 /
- 沉积物 /
- 物源分析 /
- 中生代 /
- 泥岩 /
- 地球化学 /
- 秦岭造山带
Abstract: The sedimentary development of the Jiyuan basin was controlled by the Qinling orogenic belt during the Early Mesozoic. Therefore, mountain building and uplift of the Qinling orogenic belt can be evidenced by the sediments from the Jiyuan basin. The Mesozoic mudstones geochemistry has been investigated to determine the provenance of the Jiyuan basin. The average values of corrected CIA (chemical weathering index) from the Early-Middle Triassic, Late Triassic and Early-Middle Jurassic samples increase from 68.5 to 76.4, then to 86 successively, but decrease to 73.7 from the late Middle Jurassic samples. The variation of CIA might correspond to the changing paleoclimate during the Mesozoic. However, the much lower values of CIA from the Triassic samples may be restricted to the active tectonic setting. The values of ICV (compositional variation index) reflect that the first cycle sediments are mainly concentrated in the Triassic samples. These sediments may come from the uplifted basement of the North China craton, which should consist of the continental marginal arc and/or arc-continent collision zone. The Early-Middle Jurassic samples showing higher CIA may be related with the recycling clastics of the uplifting orogen, whereas first deposition might occur in the back-arc basin. In the tectonic discrimination diagrams, the sediments from Jiyuan basin mainly formed under the active continental margin and the passive continental margin, but contained much more continental island arc materials. Our data support that sediments from the uplifted basement of the North China craton to the denudation of the orogen is most likely related to the Qinling orogenesis during the Indosinian.
- Jiyuan basin /
- sediment /
- provenance analysis /
- Mesozoic /
- mudstone /
- geochemistry /
- Qinling orogenic belt

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图 1 华北克拉通及邻区构造纲要图及济源盆地位置(a),济源地区地质简图(b)

图a据Liu et al.(2013)略修改

Fig. 1. Tectonic sketch of the North China Craton and its adjacent regions(a),geological sketch of the Jiyuan basin(b)

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图 2 济源盆地中生代地层柱状简图

Fig. 2. Measured section from the Mesozoic Jiyuan basin

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图 3 济源盆地中生代泥岩微量元素华北南缘上地壳标准化图(a)和稀土元素球粒陨石标准化图(b)

Fig. 3. Southern North China upper crust-normalized spider diagram(a)of the Mesozoic sediments from Jiyuan basin,and Chondrite-normalized REE patterns(b)of the Mesozoic sediments from Jiyuan basin

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图 4 济源盆地中生代泥岩A-CN-K图解(a)和济源盆地中生代泥岩Th/Sc-Zr/Sc图解(b)

华北南缘上地壳数据来自Gao et al.(1998)

Fig. 4. A-CN-K diagram(a)of the Mesozoic sediments from Jiyuan basin,and Th/Sc-Zr/Sc diagram(b)of the Mesozoic sediments from Jiyuan basin

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图 5 济源盆地中生代泥岩物源区K₂O/Na₂O-SiO₂构造环境判别

a.SiO₂校正前;b.SiO₂校正后

Fig. 5. K₂O/Na₂O-SiO₂ diagram of the Mesozoic sediments from Jiyuan basin

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图 6 济源盆地中生代泥岩La-Th-Sc(a)、Th-Sc-Zr/10(b)及Th-Co-Zr/10(c)构造环境判别

OIA.大洋岛弧;CIA.大陆岛弧;ACM.活动大陆边缘;PM.被动大陆边缘

Fig. 6. La-Th-Sc(a),Th-Sc-Zr/10(b)and Th-Co-Zr/10(c)diagrams of the Mesozoic sediments from Jiyuan basin

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表 1 济源盆地中生代泥岩主量元素分析结果(%)

Table 1. The major elements (%) of the Mesozoic sediments from the Jiyuan basin

样品编号	SiO₂	TiO₂	Al₂O₃	Fe₂O₃	MnO	MgO	CaO	Na₂O	K₂O	P₂O₅	LOI	CIA	CIA_corr	ICV
Tl-h2	62.93	0.59	10.38	3.35	0.08	2.92	7.73	1.76	1.36	0.12	9.13	58.8	59.8	1.71
Th-h4	53.17	0.71	13.66	6.24	0.10	2.96	8.75	1.12	2.96	0.17	10.45	66.4	72.9	1.67
Th-h3	54.64	0.62	11.23	4.80	0.10	2.41	11.02	1.33	2.30	0.12	11.71	62.0	66.8	2.01
Th-h2	53.42	0.62	11.23	4.80	0.08	2.33	11.81	1.14	2.30	0.13	12.49	64.3	69.5	2.06
Th-h1	56.25	0.64	10.96	4.62	0.10	2.47	10.49	1.48	2.15	0.13	10.97	60.3	64.3	2.00
Te-h4	53.50	0.74	16.19	7.70	0.06	3.79	4.57	1.31	4.13	0.22	8.10	64.8	73.1	1.38
Te-h3	56.40	0.88	17.13	8.67	0.05	3.89	1.52	1.98	4.30	0.26	5.14	63.0	70.4	1.24
Te-h2	58.62	0.73	15.22	6.74	0.07	3.22	3.83	2.70	3.48	0.23	5.45	54.6	58.8	1.36
Te-h1	56.39	0.77	15.72	7.53	0.08	3.55	3.92	2.21	4.00	0.21	5.88	57.5	63.6	1.40
Ty-h4	53.19	0.76	17.27	7.33	0.05	3.58	4.17	1.02	3.36	0.20	9.42	71.2	77.3	1.17
Ty-h3	56.40	0.77	16.27	6.96	0.04	3.38	3.60	1.60	3.28	0.21	7.73	64.8	70.0	1.21
Ty-h2	58.74	0.73	16.11	7.20	0.05	3.10	2.81	1.79	3.80	0.24	5.68	61.7	67.9	1.21
Ty-h1	60.06	0.75	16.33	6.69	0.04	2.90	1.63	1.64	3.01	0.25	7.01	66.2	70.7	1.02
Tc-h2	18.20	0.23	5.27	3.35	1.51	0.76	37.08	0.31	1.20	0.11	32.26	69.4	77.4	8.43
Tc-h3	57.50	0.84	17.65	6.83	0.03	2.86	1.71	1.24	3.90	0.23	7.45	68.0	75.1	0.99
Tc-h1	52.30	0.60	13.27	4.75	0.12	2.26	10.35	0.68	2.76	0.13	13.04	71.7	79.0	1.62
Tc-h5	44.05	0.69	12.72	5.06	0.04	1.80	16.14	0.05	2.60	0.13	17.00	81.0	90.6	2.07
Tt-h1	47.06	0.59	5.32	2.13	0.06	3.68	19.38	0.32	1.12	0.10	20.31	70.1	77.1	5.13
Tt-1	47.25	0.66	11.58	4.33	0.07	3.56	13.32	0.30	2.46	0.16	16.08	75.9	84.7	2.13
Tt-2	50.81	0.67	13.65	5.83	0.09	3.63	8.65	0.78	2.65	0.17	12.83	71.4	77.7	1.63
Tt-3	42.89	0.81	12.78	6.23	0.06	5.04	11.96	0.35	3.00	0.16	16.37	74.4	84.6	2.15
Ja-h2	55.18	0.62	7.08	3.43	0.05	3.74	13.02	0.64	1.44	0.11	14.97	65.9	71.4	3.24
Ja-h9	48.44	0.76	14.36	6.27	0.03	2.00	11.47	0.18	3.09	0.14	13.60	78.4	88.3	1.66
Ja-h10	52.50	0.79	17.73	6.89	0.04	2.34	5.80	0.15	3.89	0.15	10.01	79.0	89.4	1.12
Ja-h14	59.11	1.01	20.27	5.67	0.01	1.77	0.71	0.10	4.13	0.14	7.39	80.8	90.3	0.66
Ja-1	52.08	1.02	19.24	7.64	0.03	2.79	3.98	0.19	4.40	0.16	8.09	78.1	89.0	1.04
Ja-2	60.14	1.05	18.69	6.81	0.03	2.01	0.98	0.21	3.38	0.17	6.30	81.1	88.6	0.77
Jy-h1	52.43	0.96	22.40	7.36	0.03	1.94	1.14	0.47	4.08	0.23	9.30	78.9	86.1	0.71
Jy-h2	54.87	1.21	20.81	7.02	0.02	1.81	1.22	0.69	3.80	0.26	8.53	76.5	83.1	0.76
Jy-1	64.14	0.80	16.88	6.24	0.04	1.28	1.10	1.43	2.52	0.23	5.12	72.1	75.5	0.79
Jm-1	38.87	0.51	10.68	4.89	0.14	2.45	19.70	0.37	3.07	0.41	18.72	70.1	82.7	2.91
Jm-2	67.42	0.71	13.52	3.55	0.03	1.79	2.76	1.05	3.33	0.11	5.54	65.7	73.7	0.98

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表 2 济源盆地中生代泥岩微量元素分析结果(10^-6)

Table 2. The trace elements (10^-6) of the Mesozoic sediments from the Jiyuan basin

样品编号	Sc	V	Cr	Co	Ni	Cu	Zn	Ga	Rb	Sr	Y	Zr	Nb	Cs	Ba	Hf	Ta	Pb	Th	U
T1-h2	8.4	56.1	38.8	20.9	19.0	12.8	54.7	13.6	68.1	105.0	24.9	236.0	13.0	4.4	166.0	6.4	1.0	12.4	14.9	2.9
Th-h1	11.3	76.5	58.0	17.6	28.0	28.8	53.8	13.3	89.7	133.0	24.9	192.0	13.3	4.7	495.0	5.1	1.0	19.3	11.6	2.7
Th-h2	11.1	74.4	54.3	15.8	28.0	29.2	56.0	14.3	99.5	128.0	25.3	170.0	12.9	5.5	227.0	4.6	0.9	18.6	11.6	2.8
Th-h3	11.4	68.6	60.5	16.6	29.3	28.8	56.8	14.0	97.5	134.0	24.4	172.0	13.2	5.4	768.0	4.6	0.9	19.5	10.8	2.4
Th-h4	14.5	95.6	78.6	20.6	39.0	32.1	68.5	17.1	121.0	118.0	28.4	178.0	14.3	6.6	475.0	4.8	1.0	22.7	12.7	2.8
Te-h1	15.1	110.0	88.2	24.1	45.9	44.5	104.0	21.7	156.0	223.0	21.6	125.0	13.5	7.7	537.0	3.4	0.9	32.8	11.7	2.3
Te-h2	13.0	81.7	85.8	21.7	40.0	37.0	88.7	20.9	125.0	276.0	20.1	180.0	13.0	5.2	565.0	4.8	0.8	26.2	10.0	1.9
Te-h3	17.0	111.0	103.0	23.0	51.0	47.1	112.0	24.7	170.0	204.0	21.0	165.0	16.1	8.5	559.0	4.3	1.0	34.8	13.6	2.3
Te-h4	15.2	106.0	80.4	19.0	41.8	42.5	106.0	22.7	171.0	153.0	26.8	130.0	15.0	9.7	396.0	3.5	1.0	33.7	14.0	2.8
Ty-h1	13.2	93.8	79.4	19.2	38.1	47.4	95.0	22.4	109.0	172.0	18.9	208.0	13.9	5.4	744.0	5.3	0.9	28.4	11.5	1.8
Ty-h2	13.3	95.7	73.8	20.7	35.6	37.4	92.8	22.1	150.0	185.0	25.4	155.0	15.0	8.2	666.0	4.2	1.0	30.5	12.7	2.8
Ty-h3	14.1	93.2	71.1	15.5	34.3	45.7	100.0	22.3	126.0	194.0	25.6	150.0	15.7	5.7	576.0	4.0	1.1	29.3	15.4	2.8
Ty-h4	15.2	100.0	73.4	15.2	37.7	51.4	108.0	23.6	130.0	120.0	25.4	121.0	15.8	6.7	522.0	3.3	1.1	27.3	16.4	3.1
Tc-h1	11.5	79.3	52.0	14.4	25.4	27.9	67.8	17.9	112.0	203.0	21.0	166.0	12.7	6.2	451.0	4.4	0.9	16.6	11.9	2.2
Tc-h2	4.9	29.3	23.9	11.6	15.5	12.3	26.3	7.6	53.7	229.0	34.5	50.6	5.1	2.4	179.0	1.4	0.4	6.7	5.2	1.2
Tc-h3	15.5	104.0	88.3	16.7	40.7	50.0	104.0	26.3	161.0	157.0	26.0	195.0	16.5	7.4	796.0	5.2	1.1	25.0	15.3	2.6
Tc-h5	12.7	96.3	65.0	16.0	30.9	30.0	60.8	16.7	105.0	90.1	26.1	144.0	14.3	6.1	369.0	3.8	1.0	15.3	11.8	2.4
Tt-h1	6.2	40.2	24.9	18.5	13.1	6.18	32.3	6.9	43.6	256.0	20.1	287.0	10.4	1.6	164.0	7.3	0.8	10.6	10.1	2.0
Tt-1	9.1	42.9	38.4	14.5	29.0	29.0	63.0	14.6	110.0	193.0	20.4	163.0	14.6	8.4	276.0	4.2	3.0	27.2	14.9	2.0
Tt-2	8.6	50.1	49.2	15.4	29.0	34.8	70.7	15.8	98.6	160.0	19.9	148.0	13.4	7.5	347.0	3.9	1.1	29.6	12.3	2.7
Tt-3	10.1	56.3	47.7	17.0	32.6	36.2	69.2	14.6	111.0	150.0	25.4	177.0	15.6	6.7	315.0	4.6	1.2	25.7	11.6	1.8
Ja-h2	7.8	53.8	34.5	21.7	17.6	9.34	42.2	9.0	55.4	146.0	22.0	277.0	10.9	2.3	199.0	7.0	0.8	11.7	9.7	1.9
Ja-h9	15.1	110.0	65.6	18.5	32.6	33.8	80.8	19.4	140.0	159.0	26.9	159.0	15.4	7.7	420.0	4.3	1.1	19.9	14.2	2.7
Ja-h10	16.6	127.0	77.5	16.0	32.5	32.4	76.1	23.1	172.0	96.7	25.7	153.0	16.0	9.3	524.0	4.2	1.2	15.7	15.6	2.8
Ja-h14	20.6	121.0	105.0	22.4	61.8	31.7	90.6	28.8	182.0	55.3	45.8	236.0	21.3	19.4	696.0	6.3	1.4	9.1	20.3	3.3
Ta-1	12.9	85.0	70.6	17.0	40.1	51.4	89.5	22.2	168.0	112.0	34.9	190.0	19.2	11.2	432.0	4.6	1.5	19.7	16.0	2.8
Ta-2	12.9	70.0	84.6	18.1	52.2	51.9	84.6	20.9	126.0	74.2	37.3	219.0	19.6	11.8	532.0	5.6	1.1	20.8	14.3	3.2
Jy-h2	20.9	147.0	112.0	14.2	33.0	17.6	76.4	30.3	148.0	139.0	42.1	269.0	20.4	9.2	438.0	7.6	1.5	19.1	18.8	5.2
Jy-h1	21.5	158.0	95.2	11.9	34.1	25.7	80.0	32.6	160.0	139.0	42.9	238.0	17.0	9.9	481.0	6.9	1.2	19.5	16.3	4.3
Jy-1	8.2	50.9	40.2	9.7	28.5	29.4	65.2	15.9	75.6	121.0	30.2	202.0	14.0	5.0	364.0	4.8	0.9	21.0	8.8	2.4
Jm-1	6.8	46.1	46.0	16.1	42.8	34.0	64.2	13.2	84.1	312.0	12.5	95.6	11.2	9.7	441.0	2.5	0.7	26.3	9.6	2.8
Jm-2	6.6	55.1	41.6	11.3	30.8	26.4	53.2	14.2	116.6	85.8	18.5	200.0	13.7	11.1	321.0	5.0	0.8	13.5	9.2	1.8

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表 3 济源盆地中生代泥岩稀土元素分析结果(10^-6)

Table 3. The rare earth elements (10^-6) of the Mesozoic sediments from the Jiyuan basin

样品编号	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	∑REE	LREE/HREE	La /Yb	(La /Yb)_N	δEu
T1-h2	38.3	73.2	8.5	32.1	5.9	1.0	5.5	0.8	4.6	0.9	2.5	0.3	2.2	0.3	176.1	9.3	17.3	11.7	0.5
Th-h1	33.5	69.7	8.0	30.6	6.1	1.2	5.5	0.8	4.6	0.9	2.4	0.3	2.3	0.4	166.3	8.7	14.6	9.8	0.6
Th-h2	31.5	64.4	7.6	28.8	5.7	1.1	5.2	0.8	4.7	0.9	2.6	0.4	2.3	0.3	156.2	8.1	13.5	9.1	0.6
Th-h3	30.6	65.4	7.5	29.2	5.7	1.3	5.2	0.8	4.5	0.9	2.4	0.3	2.3	0.3	156.3	8.4	13.5	9.1	0.7
Th-h4	40.7	76.8	8.8	33.8	6.6	1.3	6.1	0.9	5.3	1.0	2.8	0.4	2.7	0.4	187.5	8.6	15.4	10.4	0.6
Te-h1	42.2	79.5	9.0	34.0	6.0	1.3	5.3	0.7	4.0	0.8	2.2	0.3	2.1	0.3	187.7	11.0	19.9	13.4	0.7
Te-h2	43.4	79.8	9.3	34.6	5.9	1.3	5.0	0.7	3.8	0.7	2.1	0.3	2.1	0.3	189.3	11.6	20.9	14.1	0.7
Te-h3	43.6	85.4	9.7	35.7	6.3	1.4	5.1	0.8	4.1	0.8	2.3	0.4	2.4	0.4	198.1	11.3	17.9	12.1	0.7
Te-h4	47.1	86.3	10.2	38.3	7.0	1.4	6.0	0.9	4.8	0.9	2.7	0.4	2.4	0.4	208.7	10.3	19.4	13.1	0.6
Ty-h1	41.9	77.7	10.0	37.9	6.6	1.4	5.0	0.7	3.4	0.7	2.1	0.3	2.1	0.3	190.1	12.0	19.9	13.4	0.7
Ty-h2	46.6	86.4	10.0	38.7	7.1	1.5	6.0	0.9	4.7	0.9	2.5	0.4	2.3	0.4	208.2	10.6	20.4	13.7	0.7
Ty-h3	41.9	68.6	9.1	34.4	6.4	1.4	5.7	0.9	4.7	0.9	2.6	0.4	2.4	0.4	179.7	9.1	17.8	12.0	0.7
Ty-h4	44.8	68.8	9.6	36.0	6.6	1.4	5.7	0.9	4.7	0.9	2.6	0.4	2.4	0.4	185.0	9.4	18.9	12.7	0.7
Tc-h1	31.0	62.1	7.1	26.5	4.9	1.0	4.4	0.7	3.5	0.8	2.1	0.3	2.1	0.3	146.8	9.4	15.0	10.1	0.7
Tc-h2	72.9	46.9	11.1	38.7	6.1	1.0	5.5	0.8	4.7	0.9	2.4	0.3	1.8	0.3	193.5	10.5	39.6	26.7	0.5
Tc-h3	33.2	60.7	8.7	33.6	6.4	1.4	5.5	0.8	4.5	0.9	2.7	0.4	2.8	0.4	162.0	8.0	12.0	8.1	0.7
Tc-h5	33.6	68.0	7.9	29.7	5.6	1.1	5.3	0.8	4.6	0.9	2.6	0.4	2.5	0.4	163.4	8.3	13.3	9.0	0.6
Tt-h1	32.7	65.0	7.6	27.9	5.1	0.8	4.5	0.7	3.5	0.7	1.9	0.3	1.8	0.3	152.6	10.3	18.1	12.2	0.5
Tt-1	35.7	75.4	8.9	36.0	5.9	1.1	5.8	0.8	4.7	0.8	2.4	0.3	2.3	0.4	180.5	9.3	15.8	10.7	0.6
Tt-2	34.2	74.8	8.9	35.7	6.1	1.2	5.6	0.8	4.7	0.8	2.6	0.4	2.5	0.4	178.7	9.0	13.6	9.2	0.6
Tt-3	38.2	83.2	9.8	40.3	6.8	1.4	6.9	0.9	5.9	1.1	3.2	0.5	3.1	0.5	201.7	8.2	12.4	8.4	0.6
Ja-h2	31.1	63.9	7.4	28.1	5.3	0.9	4.7	0.7	3.9	0.8	2.2	0.3	2.0	0.3	151.7	9.2	15.5	10.4	0.6
Ja-h9	33.2	66.8	7.9	29.5	5.7	1.1	5.2	0.8	4.8	1.0	2.8	0.4	2.8	0.4	162.4	7.9	12.0	8.1	0.6
Ja-h10	39.4	72.3	8.2	30.5	5.6	1.1	5.1	0.8	4.6	0.9	2.8	0.4	2.8	0.4	174.9	8.8	14.0	9.4	0.6
Ja-h14	57.0	99.5	11.6	42.8	7.6	1.5	7.0	1.1	6.9	1.4	4.2	0.6	4.1	0.6	246.0	8.5	13.9	9.4	0.6
Ja-1	50.4	110.0	12.7	51.4	8.5	1.8	8.5	1.2	8.0	1.5	4.6	0.7	4.4	0.8	264.4	7.9	11.5	7.7	0.6
Ja-2	51.8	119.0	13.8	56.9	10.1	2.2	9.8	1.4	8.5	1.6	4.6	0.7	4.2	0.6	285.0	8.1	12.2	8.2	0.7
Jy-h2	71.6	125.0	13.0	44.7	6.9	1.3	6.5	1.0	6.0	1.3	4.3	0.7	4.6	0.7	287.6	10.4	15.5	10.4	0.6
Jy-h1	59.5	105.0	11.6	42.1	6.9	1.4	6.5	1.0	6.4	1.4	4.2	0.7	4.4	0.7	251.8	9.0	13.5	9.1	0.6
Jy-1	39.5	93.6	11.2	47.1	8.2	1.8	7.8	1.1	7.0	1.3	3.8	0.5	3.5	0.7	227.0	7.9	11.4	7.7	0.7
Jm-1	24.3	49.5	6.0	23.5	3.8	0.8	3.7	0.5	2.8	0.5	1.5	0.2	1.5	0.3	118.8	9.8	16.6	11.2	0.7
Jm-2	30.8	70.6	8.4	34.4	6.0	1.2	5.5	0.8	4.7	0.9	2.5	0.4	2.4	0.4	168.9	8.7	12.8	8.7	0.6

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表 4 4阶段样品与不同构造环境杂砂岩稀土元素特征参数的对比

Table 4. Compared the REE values of four stages with the data from different tectonic settings

构造背景	La	Ce	∑REE	LREE/HREE	La/Yb	(La/Yb)_N	Eu/Eu^*
大洋岛弧	8±1.7	19±3.7	58±10	3.8±0.9	4.2±1.3	2.8±0.9	1.04±0.11
大陆岛弧	27±4.5	59±8.2	146±20	7.7±1.7	11±3.6	7.5±2.5	0.79±0.13
活动大陆边缘	37	78	186	9.1	12.5	8.5	0.60
被动大陆边缘	39	85	210	8.5	15.9	10.8	0.56
T₁₊₂	41 34^*	76 63^*	184 153^*	9.88	17.64	11.89	0.67
T₃	39 33^*	67 56^*	172 143^*	9.13	17.48	9.65	0.61
J_1-2	48 40^*	95 79^*	228 190^*	8.63	13.26	8.94	0.62
J₂	28 23^*	60 50^*	144 120^*	9.26	14.74	9.94	0.66
注：大洋、大陆岛弧以及活动、被动大陆边缘数据据Bhatia(1985);其他为本文值,其中*为校正值.

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豫西济源盆地中生代泥岩地球化学特征对物源区的指示

doi: 10.3799/dqkx.2017.004

作者简介:
杨文涛(1984-)，男，讲师，博士，从事沉积地质学研究及相关教学工作.ORCID:0000-0002-8589-3850.E-Mail: ywtao125@163.com

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Geochemistry of Mudstones from Mesozoic Jiyuan Basin,West Henan: Implications for Provenance Analysis

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豫西济源盆地中生代泥岩地球化学特征对物源区的指示

doi: 10.3799/dqkx.2017.004

作者简介: 杨文涛(1984-)，男，讲师，博士，从事沉积地质学研究及相关教学工作.ORCID:0000-0002-8589-3850.E-Mail: ywtao125@163.com

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Geochemistry of Mudstones from Mesozoic Jiyuan Basin,West Henan: Implications for Provenance Analysis

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作者简介:
杨文涛(1984-)，男，讲师，博士，从事沉积地质学研究及相关教学工作.ORCID:0000-0002-8589-3850.E-Mail: ywtao125@163.com