喀喇昆仑北羌塘地体加勒万河地区中—基性岩地球化学与年代学研究

何国建; 胡修棉; 楼法生; 陈浩鹏; 杨晓飞; 陈建中; 吴春伟; 张密椋

doi:10.12029/gc20201116001

喀喇昆仑北羌塘地体加勒万河地区中—基性岩地球化学与年代学研究

1.
南京大学地球科学与工程学院, 江苏南京 210023

2.
江西省地质调查勘查院基础地质调查所, 江西南昌 330030

3.
江西有色地质矿产勘查开发院, 江西南昌 330030

4.
江西省地质调查勘查院, 江西南昌 330009

5.
新疆维吾尔自治区地质矿产勘查开发局第三地质大队, 新疆库尔勒 841000

基金项目: 新疆维吾尔自治区地质勘查基金项目（K15–1–LQ22）资助。

详细信息

作者简介: 何国建，男，1987年生，硕士生，高级工程师，主要从事于青藏高原区域地质矿产调查研究工作；E−mail：541373659@qq.com

中图分类号: P584; P588.1; P597

收稿日期: 2020-11-16

修回日期: 2021-01-22

刊出日期: 2024-07-25

Geochemistry and geochronology of intermediate–basic rocks in the Galwan Valley area of the North Qiangtang terrane, Karakoram

1.
School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, Jiangsu, China

2.
Basic Geological Survey Institute of Jiangxi Geological Survey and Exploration Institute, Nanchang 330030, Jiangxi, China

3.
Jiangxi Institute of Geological Prospecting and Mineral Resource for Nonferrous Metal, Nanchang 330030, Jiangxi, China

4.
Jiangxi Geological Survey and Exploration Institute, Nanchang 330009, Jiangxi, China

5.
No.3 Geological Team, Xinjiang Bureau of Geology and Mineral Exploration and Development, Korla 841000, Xinjiang, China

Fund Project: Supported by the projeet of Xinjiang Geological Exploration Fund (No.K15–1–LQ22).

More Information

Author Bio: HE Guojian, male, born in 1987, master candidate, senior engineer, mainly engaged in the Qinghai Tibet Plateau regional geological and mineral researches; E-mail: 541373659@qq.com .

Received Date: 16 November 2020

Revised Date: 22 January 2021

Publish Date: 25 July 2024

摘要

摘要: 研究目的
加勒万河谷位于北羌塘地体的喀喇昆仑山，紧邻火烧云超大型铅锌矿床。对加勒万河地区新发现的岩浆岩开展岩石地球化学及年代学研究有助于深入理解区域成矿动力学背景和岩浆演化历史，为区域岩浆−构造−成矿作用研究提供理论基础。
研究方法
本研究报道了加勒万河地区7件中—基性岩浆岩样品，岩性包括玄武岩、辉绿岩和闪长岩，并对这些样品进行了系统的矿物学、主量和微量元素、锆石U–Pb年龄和微量元素分析。
研究结果
锆石U–Pb定年结果表明冰洞闪长岩的侵位年龄为（98.9±1.2）Ma，其全岩成分具有低钾钙碱性的特点，而玄武岩中锆石U–Pb定年结果显示其喷发年龄为（232±9）Ma，全岩地球化学组成上具有钙碱性—过碱性的特点。锆石定年结果显示闪长岩与玄武岩中均发育大量约800 Ma的继承锆石，且二者继承锆石年龄频谱均出现6个不同时代的年龄峰。
结论
冰洞闪长岩是地壳增厚背景下壳−幔混合作用的产物，与新特提斯洋闭合后印度板块与欧亚板块碰撞造山的远程效应有关。闪长岩与玄武岩中大量800 Ma继承锆石的发育表明他们来源于新元古代基底物质的熔融。闪长岩与玄武岩中的6个不同的锆石年龄峰反映了中元古代结晶基底、Rodinia超大陆的裂解至新特提斯洋闭合碰撞造山等6个期次的构造岩浆活动。
- 继承锆石 /
- 基底 /
- 地质调查工程 /
- 加勒万河 /
- 北羌塘地体 /
- 喀喇昆仑
Abstract:
This paper is the result of geological survey engineering.
Objective
The Galwan Valley, which adjacent to the Huoshaoyun super large lead−zinc deposit, located in the Karakoram Mountains of the Northern Qiangtang terrane. A systematically lithogeochemistry and chronological studies was conducted on the newly discovered magmatic rocks in the Galwan Valley area to helps us deeply understanding the regional metallogenic dynamics and magmatic evolution history, providing a theoretical foundation for the study of regional magmatic−tectonic−mineralization processes.
Methods
This study reports seven samples of intermediate−basic magmatic rocks in the Galwan Valley area, including basalt, diabase, and diorite. A systematic mineralogical, major and trace element, zircon U–Pb age, and trace element analyses were conducted on these samples.
Results
The zircon U–Pb dating results indicate that the Bingdong diorite is emplaced at (98.9±1.2) Ma, and its whole−rock composition is characterized by low−potassium calc−alkaline features. In contrast, the zircon U–Pb dating results for the basalt show an eruption age of (232±9) Ma, with its whole−rock geochemical composition displaying calcium alkali or peralkaline characteristics. The zircon dating results show that both the diorite and basalt samples contain a large number of ~800 Ma inherited zircons, and both have age spectra featuring six distinct age peaks.
Conclusions
The Bingdong diorite is a product of crust−mantle mixing under a crustal thickening background, related to the remote effect of the India–Asia collision orogeny following the closure of the Neo–Tethys Ocean. The existence of numerous ~800 Ma inherited zircons in the diorite and basalt indicates that they originated from the melting of Neoproterozoic basement material. The six distinct zircon age peaks in both the diorite and basalt reflect six periods of tectono–magmatic activity, ranging from the Mesoproterozoic crystalline basement and the breakup of the Rodinia supercontinent to the closure of the Neo–Tethys Ocean and subsequent collisional orogeny.
- inherited zircon /
- basement /
- geological survey engineering /
- Gallevan Valley /
- the North Qiangtang terrane /
- Karakoram

HTML全文

图 1 喀喇昆仑区域地质矿产图（据高永宝等, 2019修改）

Figure 1.

下载: 全尺寸图片幻灯片

图 2 喀喇昆仑加勒万河地区地质图（a）、大地构造分区图（b）（据范廷宾等, 2019）

Figure 2.

下载: 全尺寸图片幻灯片

图 3 喀喇昆仑西南达坂一带地质图

Figure 3.

下载: 全尺寸图片幻灯片

图 4 加勒万河地区中—基性岩浆岩野外照片和显微照片

Figure 4.

下载: 全尺寸图片幻灯片

图 5 加勒万河地区玄武岩和闪长岩锆石阴极发光图像

Figure 5.

下载: 全尺寸图片幻灯片

图 6 加勒万河地区中基性岩锆石U–Pb年龄谐和图

Figure 6.

下载: 全尺寸图片幻灯片

图 7 加勒万河地区中基性岩样品锆石稀土元素配分型式图

Figure 7.

下载: 全尺寸图片幻灯片

图 8 玄武岩TAS分类图（a，据Le Maitre, 1989）和中基性侵入岩TAS分类图（b，据Middlemost, 1994）

Figure 8.

下载: 全尺寸图片幻灯片

图 9 AR–SiO₂图解（a，据Maniar and Piccoli, 1989）和SiO₂–K₂O图解（b，据Peccerillo and Taylor, 1976）

Figure 9.

下载: 全尺寸图片幻灯片

图 10 加勒万河地区中基性岩球粒陨石标准化稀土配分图（a）和原始地幔标准化微量元素蛛网图（b）（据Sun and McDonough, 1989）

Figure 10.

下载: 全尺寸图片幻灯片

图 11 加勒万河地区玄武岩、闪长岩锆石U–Pb同位素年龄频谱图

Figure 11.

下载: 全尺寸图片幻灯片

图 12 加勒万河地区玄武岩、闪长岩构造环境判别图

Figure 12.

下载: 全尺寸图片幻灯片

表 1 加勒万河地区中基性岩锆石U–Pb同位素测试结果

Table 1. Zircon U−Pb isotopic results of the intermediate-basic rocks in Galwan Valley area

测点号	Pb/10⁻⁶	Th/10⁻⁶	U/10⁻⁶	Th/U	同位素比值						同位素年龄/Ma						协和度
测点号	Pb/10⁻⁶	Th/10⁻⁶	U/10⁻⁶	Th/U	²⁰⁷Pb/²⁰⁶Pb	1σ	²⁰⁷Pb/²³⁵U	1σ	²⁰⁶Pb/²³⁸U	1σ	²⁰⁷Pb/²⁰⁶Pb	1σ	²⁰⁷Pb/²³⁵U	1σ	²⁰⁶Pb/²³⁸U	1σ	协和度
PM201-RZ1（闪长岩）
1	63.0	63.5	465	0.14	0.0704	0.0024	1.1109	0.0357	0.1145	0.0016	939	65.7	759	17.2	699	9.1	91%
2	64.8	294	359	0.82	0.0658	0.0018	1.2216	0.0342	0.1338	0.0017	1200	57.4	811	15.6	810	9.7	99%
3	53.0	84.0	320	0.26	0.0718	0.0022	1.3639	0.0403	0.1378	0.0018	989	61.4	874	17.3	832	10.4	95%
4	34.1	400	1983	0.20	0.0494	0.0018	0.1059	0.0041	0.0155	0.0002	169	87.0	102	3.8	98.9	1.2	96%
5	44.4	44.4	298	0.15	0.0739	0.0023	1.3005	0.0426	0.1268	0.0013	1039	63.0	846	18.8	769	7.6	90%
6	32.9	90.6	202	0.45	0.0662	0.0023	1.2094	0.0432	0.1322	0.0016	813	73.3	805	19.9	801	9.1	99%
7	54.3	97.1	360	0.27	0.0699	0.0021	1.2338	0.0373	0.1277	0.0014	928	61.1	816	17.0	775	8.0	94%
8	15.7	33.1	212	0.16	0.0617	0.0031	0.5353	0.0258	0.0634	0.0008	665	107	435	17.0	396	4.7	90%
10	51.4	63.7	338	0.19	0.0690	0.0019	1.2698	0.0362	0.1330	0.0016	900	63.1	832	16.2	805	9.0	96%
11	48.0	127	295	0.43	0.0675	0.0019	1.2471	0.0375	0.1332	0.0017	854	63.9	822	16.9	806	9.5	98%
12	37.3	232	330	0.70	0.0591	0.0021	0.7099	0.0256	0.0870	0.0012	572	77.8	545	15.2	538	7.2	98%
13	47.6	62.9	314	0.20	0.0671	0.0024	1.2379	0.0413	0.1331	0.0017	843	77.0	818	18.7	805	9.5	98%
14	49.5	212	288	0.74	0.0680	0.0020	1.2701	0.0371	0.1350	0.0019	878	60.3	832	16.6	816	10.5	98%
15	29.1	22.3	709	0.03	0.0514	0.0018	0.2737	0.0098	0.0385	0.0004	257	83.3	246	7.8	243	2.7	99%
16	33.9	61.6	213	0.29	0.0709	0.0024	1.3819	0.0474	0.1407	0.0017	955	74.2	881	20.2	849	9.6	96%
18	132	307	914	0.34	0.0671	0.0016	1.1507	0.0282	0.1236	0.0012	843	54.6	778	13.3	751	6.7	96%
PM101-RZ1（辉石玄武岩）
1	28.9	96.1	409	0.24	0.0542	0.0024	0.4545	0.0206	0.0607	0.0009	389	100	380	14.4	380	5.3	99%
2	42.9	70.2	288	0.24	0.0652	0.0022	1.1556	0.0411	0.1276	0.0016	789	72.2	780	19.4	774	8.9	99%
3	26.7	366	582	0.63	0.0510	0.0022	0.2565	0.0110	0.0366	0.0005	239	72.2	232	8.9	232	3.3	99%
4	44.4	51.7	309	0.17	0.0646	0.0021	1.1147	0.0353	0.1247	0.0014	761	67.7	760	17.0	758	8.1	99%
7	47.7	50.2	298	0.17	0.0664	0.0022	1.2061	0.0388	0.1313	0.0014	817	70.4	803	17.9	795	8.1	98%
8	120	79.3	683	0.12	0.0614	0.0034	1.1885	0.0690	0.1375	0.0020	654	119	795	32.0	830	11.5	95%
9	97.3	75.7	705	0.11	0.0621	0.0019	1.0473	0.0314	0.1215	0.0013	680	64.8	728	15.6	739	7.3	98%
10	61.3	142	356	0.40	0.0696	0.0025	1.2954	0.0458	0.1346	0.0015	917	75.9	844	20.3	814	8.6	96%
11	58.9	192	334	0.57	0.0665	0.0020	1.2437	0.0372	0.1348	0.0015	833	60.2	821	16.8	815	8.5	99%
13	53.0	109	332	0.33	0.0660	0.0019	1.1978	0.0340	0.1306	0.0015	806	59.3	800	15.7	791	8.5	98%
15	112	224	251	0.89	0.1183	0.0029	5.0616	0.1288	0.3066	0.0037	1931	44.4	1830	21.6	1724	18.2	94%
PM102-RZ1（辉石玄武岩）
1	63.8	48.2	403	0.12	0.0677	0.0020	1.2634	0.0364	0.1340	0.0016	861	61.1	829	16.3	811	8.9	97%
2	44.3	53.3	275	0.19	0.0658	0.0020	1.2378	0.0359	0.1356	0.0016	1200	59.1	818	16.3	819	9.0	99%
3	51.5	58.8	320	0.18	0.0679	0.0018	1.2710	0.0349	0.1344	0.0014	865	55.6	833	15.6	813	7.8	97%
4	97.8	131	617	0.21	0.0660	0.0017	1.2156	0.0311	0.1324	0.0013	806	53.7	808	14.2	802	7.3	99%
5	45.6	71.1	283	0.25	0.0674	0.0022	1.2370	0.0384	0.1326	0.0015	852	67.4	818	17.4	803	8.7	98%
6	56.6	53.1	364	0.15	0.0648	0.0018	1.2112	0.0345	0.1345	0.0015	769	59.3	806	15.8	814	8.4	99%
7	44.8	35.8	282	0.13	0.0692	0.0021	1.2964	0.0375	0.1354	0.0014	906	63.0	844	16.6	818	7.9	96%
8	101	274	720	0.38	0.0643	0.0015	1.0009	0.0234	0.1121	0.0011	750	48.9	704	11.9	685	6.2	97%
9	56.4	55.6	356	0.16	0.0663	0.0019	1.2446	0.0369	0.1354	0.0016	817	61.1	821	16.7	819	9.2	99%
10	94.0	99.7	612	0.16	0.0647	0.0017	1.1849	0.0330	0.1320	0.0016	765	55.6	794	15.3	799	9.0	99%
11	98.2	279	585	0.48	0.0636	0.0017	1.1630	0.0315	0.1322	0.0016	728	25.0	783	14.8	800	8.9	97%
12	151	131	969	0.13	0.0644	0.0015	1.2190	0.0303	0.1363	0.0015	754	249.1	809	13.9	824	8.3	98%
13	61.8	76.0	387	0.20	0.0655	0.0019	1.2181	0.0360	0.1340	0.0017	791	59.3	809	16.5	811	9.4	99%
14	70.4	57.7	449	0.13	0.0659	0.0018	1.2471	0.0354	0.1364	0.0018	806	57.4	822	16.0	824	10.1	99%
15	50.2	47.9	296	0.16	0.0707	0.0021	1.4306	0.0479	0.1449	0.0022	950	61.1	902	20.0	872	12.5	96%
16	65.1	51.4	427	0.12	0.0637	0.0019	1.1719	0.0363	0.1322	0.0015	731	64.8	788	17.0	800	8.4	98%
17	61.9	67.8	396	0.17	0.0638	0.0018	1.2019	0.0354	0.1353	0.0016	744	59.3	801	16.4	818	9.0	97%
18	51.0	71.7	330	0.22	0.0672	0.0019	1.2224	0.0356	0.1309	0.0014	843	59.3	811	16.3	793	7.9	97%
19	46.2	43.1	307	0.14	0.0650	0.0019	1.1959	0.0344	0.1325	0.0014	776	56.5	799	15.9	802	8.1	99%
20	67.6	110	422	0.26	0.0634	0.0018	1.2037	0.0340	0.1367	0.0016	720	63.9	802	15.7	826	9.1	97%

下载: 导出CSV

表 2 加勒万河地区中基性岩锆石稀土元素含量

Table 2. Rare earth elements data of zircon in the intermediate-basic rocks of the Galwan Valley area

稀土元素	Nb	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Y	ΣREE	LREE/HREE	δEu	δCe
PM101-RZ1
1	0.81	0.031	2.35	0.082	1.42	3.45	0.64	25.6	8.93	92.9	32.4	137	27.0	238	48.8	959	617.92	0.013	0.207	11.371
2	0.55	0.009	1.01	0.069	1.31	4.03	0.30	37.5	15.9	208	84.4	396	82.3	754	150	2504	1735.05	0.004	0.074	10.037
3	1.27	0.018	14.6	0.080	1.17	1.77	0.60	13.5	4.23	55.7	23.8	123	30.4	313	74.4	784	656.40	0.029	0.379	93.848
4	0.59	0.020	0.57	0.0096	0.55	3.50	0.019	31.4	13.9	179	72.6	332	71.6	644	129	2135	1477.94	0.003	0.006	10.191
7	0.73	0.013	1.89	0.072	0.67	2.83	0.17	24.3	11.2	146	53.8	254	54.6	502	106	1629	1157.14	0.005	0.063	15.077
8	1.74	4.40	8.24	1.47	7.20	5.50	0.71	34.6	17.0	251	106	535	119	1141	231	3365	2461.21	0.011	0.158	0.793
9	0.83	0.030	0.63	0.060	0.99	3.91	0.099	33.3	15.7	193	70.8	320	66.5	628	128	2157	1460.06	0.004	0.027	3.637
10	1.72	0.18	13.1	0.16	1.52	3.81	0.61	35.8	15.4	202	80.1	372	77.3	703	141	2439	1645.97	0.012	0.160	19.309
11	6.37	17.8	71.9	6.75	34.8	12.3	3.31	26.6	7.64	91.2	37.2	184	43.2	437	102	1179	1076.28	0.158	0.560	1.608
13	1.62	0.032	2.54	0.088	1.40	5.71	0.41	48.4	19.3	246	103	486	101	939	192	3124	2144.34	0.005	0.075	11.675
15	2.72	0.36	26.2	0.87	8.67	9.79	2.85	29.7	9.74	102	32.8	139	28.0	246	48.9	999	685.75	0.077	0.512	11.389
PM102-RZ1
1	0.75	0.034	0.49	0.077	0.95	2.09	0.032	26.1	12.7	189	82.0	401	89.5	842	173	2474	1647	0.003	36.745	0.014
2	0.60	0.029	0.52	0.035	0.94	3.14	0.10	28.3	12.2	168	68.1	323	69.2	631	132	2044	1305	0.004	30.628	0.013
3	0.77	0.044	0.84	0.056	0.87	3.51	0.12	34.0	14.1	194	77.9	368	77.5	708	145	2361	1481	0.004	32.745	0.013
4	1.67	0.056	2.51	0.040	1.15	3.88	0.31	40.4	18.8	269	114	559	119	1109	224	3516	2238	0.004	19.925	0.007
5	0.70	0.15	0.96	0.15	2.31	4.97	0.13	35.4	15.5	212	88.5	420	89.8	830	168	2733	1700	0.005	27.689	0.046
6	0.67	0.001＜	0.39	0.001＜	0.66	2.94	0.068	28.0	14.5	203	84.7	419	90.2	831	168	2701	1676	0.003	42.301	1.000
7	0.55	0.058	0.53	0.056	0.80	2.59	0.043	23.8	11.4	159	66.3	321	70.3	651	136	1971	1308	0.004	42.827	0.026
8	3.65	0.079	10.4	0.14	1.13	3.20	1.34	19.0	7.31	85.2	33.7	156	33.2	328	67.7	1011	682.5	0.028	7.920	0.003
9	0.90	0.001＜	0.50	0.059	0.50	2.60	0.069	27.9	13.4	184	75.8	369	79.7	753	154	2316	1508	0.003	42.809	1.000
10	1.04	3.24	2.97	1.98	11.2	11.8	2.65	61.1	25.9	355	146	688	149	1330	270	4617	2789	0.012	6.643	0.453
11	3.06	0.047	3.87	0.26	5.30	11.3	0.92	72.6	22.3	206	54.8	175	29.1	235	43.1	1696	819.5	0.030	15.646	0.003
12	1.17	0.57	3.11	0.62	3.71	5.38	0.39	45.1	22.8	331	143	712	158	1533	316	4638	2960	0.005	13.653	0.073
13	0.88	0.081	2.75	0.040	1.12	4.37	0.054	34.2	16.4	218	89.8	431	90.0	824	167	2826	1713	0.005	54.255	0.013
14	0.73	0.017	0.56	0.042	0.91	3.21	0.11	34.3	17.0	242	103	513	111	1031	212	3308	2057	0.003	31.455	0.006
15	0.62	0.019	0.79	0.026	0.95	3.19	0.15	28.1	13.3	174	68.6	315	67.5	601	123	2126	1274	0.004	25.603	0.007
16	0.75	0.0038	0.48	0.033	0.49	3.20	0.091	29.4	15.0	219	91.4	452	98.2	922	189	2900	1832	0.003	46.335	0.002
17	0.73	0.001＜	0.54	0.026	0.71	3.70	0.12	35.9	16.7	220	89.8	427	88.8	812	166	2828	1695	0.003	37.996	1.000
18	0.94	0.0029	1.14	0.048	0.91	3.83	0.085	35.6	16.0	213	85.3	393	83.1	743	149	2669	1575	0.004	41.878	0.001
19	0.74	0.090	0.60	0.046	0.53	2.51	0.059	22.5	11.3	163	69.5	339	72.1	661	137	2103	1343	0.003	43.376	0.033
20	0.77	0.022	0.82	0.032	1.03	4.66	0.12	40.7	17.4	249	100	473	98.5	887	181	3179	1874	0.004	40.391	0.007
PM201-RZ1
1	1.13	4.34	2.56	3.02	17.8	15.7	4.21	55.3	23.5	296	112	505	105	943	193	3432	2280	0.021	0.437	0.173
2	1.54	0.14	10.7	0.11	1.36	5.91	0.42	37.4	13.9	177	69.5	314	62.8	550	113	2007	1356	0.014	0.087	21.230
3	3.54	0.31	2.92	0.24	2.34	4.86	0.35	37.4	15.0	202	81.4	375	79.7	719	147	2516	1668	0.007	0.080	2.639
4	5.79	0.059	4.44	0.040	0.80	2.76	0.21	18.9	7.85	109	43.7	220	48.7	462	97.4	1357	1015.4	0.008	0.089	22.311
5	1.65	0.13	1.59	0.074	0.84	2.85	0.16	24.6	13.0	177	70.0	337	73.0	653	136	2117	1490	0.004	0.059	3.906
6	0.82	0.090	3.83	0.16	2.38	7.15	0.54	52.5	18.8	243	97.2	438	89.3	800	161	2950	1914	0.007	0.085	7.828
7	0.91	0.25	1.41	0.19	2.52	6.24	0.34	47.3	19.3	255	101	466	96.4	849	174	3206	2019	0.005	0.060	1.591
8	0.61	0.10	1.98	0.11	0.70	1.58	0.28	12.5	4.88	58.8	23.3	105	21.9	205	44.0	686	480.4	0.010	0.192	4.562
10	0.57	0.028	0.53	0.037	0.97	4.11	0.093	34.7	15.2	199	78.2	364	74.8	672	137	2424	1580	0.004	0.024	3.998
11	0.59	0.023	0.91	0.13	2.32	7.92	0.19	48.4	15.4	167	60.2	264	53.9	479	93.6	1842	1192.4	0.010	0.030	4.113
12	1.34	7.44	43.8	2.13	11.2	5.92	1.11	21.8	6.81	72.5	26.4	113	22.4	202	41.1	777	578.0	0.141	0.298	2.696
13	0.57	0.034	0.71	0.049	0.81	4.24	0.056	34.9	15.5	203	82.4	388	80.1	713	148	2571	1672	0.004	0.014	4.297
14	1.40	0.40	9.25	0.17	1.36	2.51	0.60	14.2	4.06	44.9	15.0	68.6	14.8	140	31.7	513	348.0	0.043	0.309	8.833
15	6.56	0.014	3.55	0.010	0.21	0.41	0.092	4.59	1.98	26.5	12.4	63.8	15.1	157	36.9	391	322.1	0.013	0.205	73.353
16	0.58	0.013	1.03	0.092	2.20	4.83	0.18	38.5	14.8	191	76.5	352	73.5	669	136	2382	1560	0.005	0.040	7.323
18	2.45	0.065	3.98	0.16	2.84	9.71	0.85	82.6	32.7	433	173	779	157	1362	267	5356	3303	0.005	0.091	9.435

下载: 导出CSV

表 3 加勒万河地区中基性岩主量元素（%）和微量元素含量（10⁻⁶）

Table 3. Whole–rock major (%) and trace (10⁻⁶) elements data of intermediate–basic rocks in the Galwan Valley area

样品号	PM101-RZ1	PM102-RZ1	PM201-RZ1	PM307-HQ9	Pdh1-HQ4	Pdh1-HQ48	PM304-HQ1
岩性	辉石玄武岩	气孔状辉石玄武岩	闪长岩	辉绿辉长岩	辉绿辉长岩	角闪辉石岩	辉绿岩
SiO₂	38.59	40.80	51.91	45.16	37.82	38.62	39.13
TiO₂	4.55	4.77	0.99	3.02	5.85	5.63	6.25
Al₂O₃	10.50	10.70	14.42	15.53	12.65	12.48	9.63
FeO	6.56	7.04	7.29	7.22	7.85	8.43	11.66
Fe₂o₃	9.87	8.27	2.50	3.10	6.03	8.27	2.77
MnO	0.18	0.17	0.16	0.19	0.18	0.19	0.20
MgO	6.17	6.09	6.63	3.02	7.09	6.73	8.85
CaO	8.85	8.53	4.74	6.20	9.29	8.65	7.39
K₂O	0.97	0.33	1.23	0.43	1.48	1.36	1.53
Na₂O	3.68	3.86	3.45	5.53	2.44	3.44	2.01
P₂O₅	1.73	1.87	0.13	1.34	2.86	1.12	1.49
LOI	6.77	5.52	4.10	6.69	4.75	3.86	4.35
H₂O	1.56	1.03	0.35	0.16	0.58	0.36	0.77
Total	99.98	98.97	97.89	97.59	98.84	99.15	96.01
A/NK	1.60	2.06	1.48	1.63	2.26	1.75	1.94
A/CNK	0.48	0.92	0.45	0.75	0.56	0.55	0.52
Cr	6.89	2.68	222.5	6.56	1.79	44.99	17.73
Ni	26.05	17.29	50.46	7.91	27.72	31.75	21.97
Rb	29.12	9.33	41	14.44	81.78	47.41	53.41
Ba	447.6	152.0	575.3	2102	1707	1169	1138
Th	19.95	17.85	6.1	7.26	5.17	4.89	4.77
Nb	152.8	149.7	11.8	79.9	57.14	52.06	61.27
K	8000	2700	10200	3600	12200	11200	12700
Ta	9.71	9.78	1.09	6.3	4.67	4.41	4.11
Pr	39.72	43.55	5.13	25.17	25.06	18.06	18.46
Sr	764.7	726.8	323.4	374.6	498.6	471.0	1050
Nd	152.4	167.3	20.47	102.2	111	77.69	78.62
Zr	993.8	964.5	184.5	434.3	307.6	306.5	269.4
Hf	21.31	21.73	5.22	10.19	8.87	8.73	6.75
Sm	26.1	28.92	4.43	17.35	20.93	14.59	14.78
Eu	7.48	8.37	1.43	6.39	7.16	4.96	5.02
Ti	28277	30204	5642	18111	35327	34052	37470
Gd	23.26	25.43	4.15	15.49	17.44	11.95	12.41
Tb	3.13	3.39	0.77	2.13	2.47	1.77	1.74
Dy	14.42	15.62	4.95	9.72	11.49	8.55	8.49
Y	60.13	62.27	24.44	40.01	45.32	33.89	34.5
Ho	2.46	2.67	0.97	1.65	1.93	1.44	1.45
Er	6.98	7.34	2.81	4.71	5.06	3.86	3.63
Tm	0.83	0.82	0.42	0.56	0.57	0.46	0.44
Yb	4.92	5.01	2.77	3.24	3.38	2.81	2.51
Lu	0.73	0.73	0.42	0.46	0.49	0.41	0.36
P	7583	8366	546.4	5987	12519	4931	6500
Li	40.52	47.86	49.87	44.02	82.2	43.97	148.2
Cs	7.08	0.47	8.68	0.92	99.85	6.02	37.14
V	127.0	125.2	131.7	118.2	157.1	175.0	137.8
La	168.3	177.1	20.65	89.74	78.12	61.44	60.04
Ce	339.4	365.1	41.04	205.6	193.3	134.5	127.7
Co	43.26	36.88	36.86	17.03	46.12	49.12	47.28
ΣREE	790.1	851.3	110.4	484.4	478.4	342.5	335.7
LREE	733.4	790.3	93.16	446.4	435.6	311.2	304.6
HREE	56.73	61.01	17.25	37.96	42.83	31.25	31.03
LREE/HREE	12.93	12.95	5.4	11.76	10.17	9.96	9.82
(La/Yb)_N	24.53	25.38	5.35	19.88	16.58	15.68	17.16
DI	35.54	37.56	44.18	53.87	31.52	32.57	28.86
δEu	0.91	0.92	1	1.19	1.15	1.15	1.1

下载: 导出CSV

参考文献(55)

[1]	Bi Hua, Wang Zhonggang, Wang Yuanlong, Zhu Xiaoqing. 1999. Tectono–magmatic evolution of the West Kunlun Orogenic Belt[J]. Science in China (Series D), 29(5): 398−406 (in Chinese).
[2]	Deng Wanming. 1989. A preliminary study on the basic–ultrabasic rocks of the Karakoram–Western Kunlun Mts[J]. Journal of Natural Resources, 4(3): 204−211 (in Chinese with English abstract).
[3]	Dong Lianhui, Xu Xingwang, Fan Tingbin, Qu Xun, Li Hao, Wan Jianling, An Haitao, Zhou Gang, Li Jihong, Chen Gang, Liu Chuan. 2015. Discovery of the Huoshaoyun super–large exhalative–sedimentary carbonate Pb–Zn deposit in the Western Kunlun area and its great significance for regional metallogeny[J]. Xinjiang Geology, 33(1): 41−50 (in Chinese with English abstract).
[4]	Fan Tingbin, Jin Hongzhan, Yu Yuanjun, Jiang Guopeng, Xia Mingyi. 2019. Metallogenic characteristics and prospecting progress of lead–zinc deposits in the Tianshuihai area of west Kunlun[J]. Journal of Geology, 43(2): 184−197 (in Chinese with English abstract).
[5]	Gao Yongbao, Li Kan, Teng Jiaxin, Zhao Xinmin, Zhao Xiaojian, Yan Zhouquan, Jin Moushun, Zhao Huibo, Li Xutuo. 2019. Mineralogy, geochemistry and genesis of giant Huoshaoyun Zn–Pb deposit in Karakoram area, Xinjiang, NW China[J]. 52(4): 152–169 (in Chinese with English abstract).
[6]	Geological and Mineral Resources Bureau of Xinjiang Uygur Autonomous Region. 1993. Regional Geology of Xinjiang Uygur Autonomous Region[M]. Beijing: Geological Publishing House, 136–759 (in Chinese).
[7]	Hao Jie, Zhai Mingguo. 2004. Jinning movement and Sinian system in China: Their relationship with Rodinia supercontinent[J]. Chinese Journal of Geology, 39(1): 139−152 (in Chinese with English abstract).
[8]	He Guojian, Chen Jianzhong, Zhang Miliang, Yao Jianbin, Chen Haopeng, Hu Weizheng. 2020. The discovery of Early Permian ammonite fossils in Galwan, West Kunlun, Xinjiang and its significance of lithofacies and palaeogeography[J]. Geological Bulletin of China, 42(1): 76−83 (in Chinese with English abstract).
[9]	Ji Wenhua, Li Rongshe, Chen Shoujian, He Shiping, Zhao Zhenming, Bian Xiaowei, Zhu Haiping, Cui Jigang, Ren Juangang. 2011. The discovery of Palaeoproterozoic volcanic rocks in the Bulunkuoler Group from the Tianshuihai Massif in Xinjiang of northwest China and its geological significance[J]. Science China Earth Science, 41(9): 1268−1280 (in Chinese).
[10]	Jian Kunkun, Gao Feng, Du Biao, Zhang Zhenkai, Wang Xing, Zhao Duanchang. 2019. Formation age, geochemical characteristics and tectonic setting of the basalts from Longshan Formation in Heweitan area, Karakorum[J]. Mineralogy and Petrology, 39(3): 42−51 (in Chinese with English abstract).
[11]	Le Maitre R W. 1989. A Classification of Igneous Rocks and Glossary of Terms[M]. Blackwell: Oxford, 193.
[12]	Li Xingkui, Li Cai, Wang Ming, Liu Jinheng, Luo Anbo. 2018. Nature and evolution of crustal basement beneath the Duolong ore concentration area, northern Tibet, and their constraints on the metallogenesis: Insights from U–Pb ages of inherited zircons from the Bolong volcanic–intrusive rocks[J]. Geological Bulletin of China, 37(8): 1439−1449 (in Chinese with English abstract).
[13]	Liu Y S, Hu Z C, Gao S, Günther D, Xu J, Gao C G, Chen H H. 2008. In situ analysis of major and trace elements of anhydrous minerals by LA–ICP–MS without applying an internal standard[J]. Chemical Geology, 257: 34−43. doi: 10.1016/j.chemgeo.2008.08.004
[14]	Maniar P D, Piccoli P M. 1989. Tectonic discrimination of granitoids[J]. GSA Bulletin, 101: 635−643. doi: 10.1130/0016-7606(1989)101<0635:TDOG>2.3.CO;2
[15]	Meschede M. 1986. A method of discriminating between different types of mid–ocean ridge basalts and continental tholeiites with the Nb–Zr–Y diagram[J]. Chemical Geology, 56: 207−218. doi: 10.1016/0009-2541(86)90004-5
[16]	Middlemost E A K. 1994. Naming materials in the magma/igneous rock system[J]. Earth Science Reviews, 37(3/4): 215−224.
[17]	Pan Guitatng, Xiao Qinghui, Lu Songnian, Deng Jinfu, Feng Yimin, Zhang Kexin, Zhang Zhiyong, Wang Fangguo, Xing Guangfu, Hao Guojie, Feng Yanfang. 2009. Subdivision of tectonic units in China[J]. Geology in China, 36(1): 1−28 (in Chinese with English abstract).
[18]	Pan Yusheng, Fang Aimin. 2010. Formation and evolution of the Tethys in the Tibetan Plateau[J]. Chinese Journal of Geology, 45(1): 92−101 (in Chinese with English abstract).
[19]	Peccerillo R, Taylor S R. 1976. Geochemistry of Eocene calc−alkaline volcanic rocks from the Kastamonu area, Northern Turkey[J]. Contributions to Mineralogy and Petrology, 58: 63−81. doi: 10.1007/BF00384745
[20]	Pearce J A. 1982. Trace elements characteristic of lavas from destructive plate boundaries. Andesites[C]//Thorpe R S. Orogenic Andesites and Related Rocks. Chichester, England: John Wiley & Sons, 525–548.
[21]	Sun S S, McDonough W F. 1989. Chemical and isotopic systematics of oceanic basalts: Implications for mantle composition and processes[J]. Geological Society, London, Special Publications, 42(1): 313–345.
[22]	Wedepohl K H. 1995. The composition of the continental crust[J]. Geochimica et Cosmochimica Acta, 59(7): 1217−1232. doi: 10.1016/0016-7037(95)00038-2
[23]	Whitehouse M J, Kamber B S. 2002. On the overabundance of light rare earth elements in terrestrial zircons and its implication for Earth’s earliest magmatic differentiation[J]. Earth and Planetary Science Letters, 204: 333−346. doi: 10.1016/S0012-821X(02)01000-2
[24]	Wood D A. 1980. The application of a Th–Hf–Ta diagram to problems of tectonomagmatic classification and to establishing the nature of crustal contamination of basaltic lavas of the British terfiary volcanic province[J]. Earth and Planetary Science Letters, 50(1): 11−30. doi: 10.1016/0012-821X(80)90116-8
[25]	Wu Liren. 1963. Metallogenic specialization of basic–ultrabasic rocks in China[J]. Scientia Geologia Sinica, (1): 29−41 (in Chinese).
[26]	Wu Yuanbao, Zheng Yongfei. 2004. Zircon genetic mineralogy and constraint on its U–Pb age[J]. Chinese Science Bulletin, 49(16): 1589−1604 (in Chinese). doi: 10.1360/csb2004-49-16-1589
[27]	Zhang Chuanlin, Lu Songnian, Yu Haifeng, Ye Minmin. 2007. Tectonic evolution of the west Kunlun Orogenic Belt on the northern margin of the Tibet plateau: Evidence from zircon SHRIMP and LA–ICP–MS dating[J]. Science in China (Series D), 37(2): 145−154 (in Chinese).
[28]	Zhang Chuanlin, Ma Huadong, Zhu Bingyu, Ye Xiantao, Qiu Lin, Zhao Haixiang, Liu Xiaoqiang, Ding Teng, Wang Qian, Hao Xiaoshu. 2019. Tectonic evolution of the Western Kunlun—Karakorum Orogenic Belt and its coupling with the mineralization effect[J]. Geological Review, 65(5): 1077−1102 (in Chinese with English abstract).
[29]	Zhang Huishan, Ji Wenhua, Ma Zhongping, Gao Xiaofeng, Sun Chao, Hong Jun, Lü Pengrui. 2020. Geochronology and geochemical study of the Cambrian andesite in Tianshuihai terrane: Implications for the evolution of the Proto–Tethys Ocean in the west Kunlun–Karakoram orogenic belt[J]. Acta Petrologica Sinica, 36(1): 257−278 (in Chinese with English abstract). doi: 10.18654/1000-0569/2020.01.21
[30]	Zhang Yu, Tang Mingying, He Yuliang, Cui Xiaofeng, Zhang Dongyang, Zhu Mingshuai. 2023. Geochemistry, zircon U–Pb age and Hf isotopic characteristics of two−mica monzonitic granites in Dujianshan area of Western Kunlun, Xinjiang[J]. Geology in China, 50(4): 1203−1216 (in Chinese with English abstract).
[31]	Zhao Yue, Song Biao, Zhang Shuanhong, Liu Jian. 2006. Geochronology of the inherited zircons from Jurassic Nandaling basalt of the Western Hills of Beijing, North China: its implications[J]. Earth Science Frontiers, 13(2): 184−190 (in Chinese with English abstract).
[32]	Zheng Jianping, Griffin W L, Tang Huayun, Zhang Zhihai, Su Yuping, Liu Guanliang. 2008. Arcahean basement similar to the North China and Yangtze Continents may be existed beneath the Western Cathaysia[J]. Geological Journal of China Universities, 14(4): 549−557 (in Chinese with English abstract).
[33]	Zhou Nengwu, Chen Bangxue, Deng Zhongfei, Sang Mingshuai, Bai Quanjin. 2019. Discovery and significance of Early Jurassic bimodal volcanic rocks in Huoshaoyun, Karakoram[J]. Geoscience, 33(5): 990−1002 (in Chinese with English abstract).
[34]	毕华, 王中刚, 王元龙, 朱笑青. 1999. 西昆仑造山带构造岩浆演化史[J]. 中国科学(D辑: 地球科学), 29(5): 398−406.
[35]	邓万明. 1989. 喀喇昆仑—西昆仑地区基性—超基性岩初步考察[J]. 自然资源学报, 4(3): 204−211.
[36]	董连慧, 徐兴旺, 范廷宾, 屈迅, 李昊, 万建领, 安海涛, 周刚, 李基宏, 陈刚, 刘川. 2015. 喀喇昆仑火烧云超大型喷流–沉积成因碳酸盐型Pb–Zn矿的发现及区域成矿学意义[J]. 新疆地质, 33(1): 41−50.
[37]	范廷宾, 晋红展, 余元军, 蒋国鹏, 夏明毅. 2019. 西昆仑甜水海地区铅锌矿成矿特征及找矿进展[J]. 地质学刊, 43(2): 184−197.
[38]	高永宝, 李侃, 滕家欣, 赵辛敏, 赵晓健, 燕洲泉, 金谋顺, 赵慧博, 李旭拓. 2019. 新疆喀喇昆仑火烧云超大型铅锌矿床矿物学、地球化学及成因[J]. 西北地质, 52(4): 152−169.
[39]	郝杰, 翟明国. 2004. 罗迪尼亚超大陆与晋宁运动和震旦系[J]. 地质科学, 39(1): 139−152.
[40]	何国建, 陈建中, 张密椋, 姚建斌, 陈浩鹏, 胡为正. 2020. 新疆西昆仑加勒万河一带早二叠世菊石化石的发现及岩相古地理意义[J]. 地质通报, 42(1): 76−83.
[41]	计文化, 李荣社, 陈守建, 何世平, 赵振明, 边小卫, 朱海平, 崔继岗, 任绢刚. 2011. 甜水海地块古元古代火山岩的发现及其地质意义[J]. 中国科学(地球科学), 41(9): 1268−1280.
[42]	菅坤坤, 高峰, 杜彪, 张振凯, 王星, 赵端昌. 2019. 喀喇昆仑河尾滩地区龙山组火山岩年代、地球化学特征及其构造环境[J]. 矿物岩石, 39(3): 42−51.
[43]	李兴奎, 李才, 王明, 刘金恒, 罗安波. 2018. 藏北多龙矿集区地壳基底性质、演化及其对成矿的制约—来自波龙火山–侵入岩中继承锆石U–Pb年龄的信息[J]. 地质通报, 37(8): 1439−1449.
[44]	潘桂棠, 肖庆辉, 陆松年, 邓晋福, 冯益民, 张克信, 张智勇, 王方国, 邢光福, 郝国杰, 冯艳芳. 2009. 中国大地构造单元划分[J]. 中国地质, 36(1): 1−28.
[45]	潘裕生, 方爱民. 2010. 中国青藏高原特提斯的形成与演化[J]. 地质科学, 45(1): 92−101. doi: 10.3969/j.issn.0563-5020.2010.01.009
[46]	吴利仁. 1963. 论中国基性岩、超基性岩的成矿专属性[J]. 地质科学, (1): 29−41.
[47]	吴元保, 郑永飞. 2004. 锆石成因矿物学研究及其对U–Pb年龄解释的制约[J]. 科学通报, 49(16): 1589−1604.
[48]	新疆维吾尔自治区地质矿产局. 1993. 新疆维吾尔自治区区域地质志[M]. 北京: 地质出版社, 136–759.
[49]	张传林, 陆松年, 于海锋, 叶海敏. 2007. 青藏高原北缘西昆仑造山带构造演化: 来自锆石SHRIMP及LA–ICP–MS测年的证据[J]. 中国科学(D辑: 地球科学), 37(2): 145−154.
[50]	张传林, 马华东, 朱炳玉, 叶现韬, 邱林, 赵海香, 刘晓强, 丁腾, 王倩, 郝晓姝. 2019. 西昆仑—喀喇昆仑造山带构造演化及其成矿效应[J]. 地质论评, 65(5): 1077−1102.
[51]	张辉善, 计文化, 马中平, 高晓峰, 孙超, 洪俊, 吕鹏瑞. 2020. 甜水海地块寒武纪安山岩的地球化学和年代学研究: 对西昆仑—喀喇昆仑造山带原特提斯洋演化的启示[J]. 岩石学报, 36(1): 257−278.
[52]	张宇, 唐名鹰, 何玉良, 崔霄峰, 张东阳, 朱明帅. 2023. 新疆西昆仑独尖山地区二云母二长花岗岩岩石地球化学、锆石U–Pb年龄与Hf同位素特征[J]. 中国地质, 50(4): 1203−1216.
[53]	赵越, 宋彪, 张拴宏, 刘健. 2006. 北京西山侏罗纪南大岭组玄武岩的继承锆石年代学及其含义[J]. 地学前缘, 13(2): 184−190.
[54]	郑建平, Griffin W L, 汤华云, 张志海, 苏玉平, 刘观亮. 2008. 西部华夏地区深部可能存在与华北和扬子大陆相似的太古代基底[J]. 高校地质学报, 14(4): 549−557.
[55]	周能武, 陈邦学, 邓中飞, 桑明帅, 白权金. 2019. 喀拉昆仑火烧云一带早侏罗世双峰式火山岩的发现及意义[J]. 现代地质, 33(5): 990−1002.

施引文献

资源附件(0)

访问统计

图(12)

表(3)

计量

文章访问数: 294
PDF下载数: 25
施引文献: 0

中国地质调查局中国地质科学院	主办
科学出版社	出版

喀喇昆仑北羌塘地体加勒万河地区中—基性岩地球化学与年代学研究

作者简介: 何国建，男，1987年生，硕士生，高级工程师，主要从事于青藏高原区域地质矿产调查研究工作；E−mail：541373659@qq.com

Geochemistry and geochronology of intermediate–basic rocks in the Galwan Valley area of the North Qiangtang terrane, Karakoram

Author Bio: HE Guojian, male, born in 1987, master candidate, senior engineer, mainly engaged in the Qinghai Tibet Plateau regional geological and mineral researches; E-mail: 541373659@qq.com .

计量

出版历程

目录