粤北白面山成矿预测区岩石地球化学特征与找矿预测

权立诚; 韦昌山; 罗率; 蔡锦辉

粤北白面山成矿预测区岩石地球化学特征与找矿预测

1.
中国地质科学院地质力学研究所, 北京 100081
2.
湖北省第四地质大队, 湖北咸宁 437100
3.
武汉地质矿产研究所, 武汉 430232

基金项目:

国土资源部公益性行业科研专项 201411024-3

详细信息

作者简介:
权立诚(1987-), 男, 硕士研究生, 主要从事矿田构造与找矿预测研究。E-mail:quanlc521@163.com

通讯作者:
韦昌山(1964-), 男, 研究员, 主要从事矿田构造与矿产预测研究。E-mail:13651052027@qq.com

中图分类号: P632
计量
- 文章访问数: 95
- HTML全文浏览量: 35
- PDF下载量: 13
- 被引次数: 0
出版历程
- 收稿日期: 2014-08-07
- 刊出日期: 2014-12-28

ROCK GEOCHEMICAL CHARACTERISTICS AND ORE-PROSPECTING PROGNOSIS IN THE BAIMIANSHAN METALLOGENIC FORECASTING AREA, NORTHERN GUANGDONG

1.
Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China
2.
The Fourth Geological Team of Hubei Province, Xianning 437100, Hubei, China
3.
Wuhan Institute of Geology and Minerals Resources, Wuhan 430232, China

摘要

摘要: 通过对大宝山钼多金属矿床西侧白面山成矿预测区野外地质调查, 确定该区断裂构造十分发育, 主要有北西、北东和近东西向3组, 其中北西向断裂形成最早, 北东向最晚。区内有较多中基性岩脉沿北西、北东向断裂侵入。沿断裂带的地表存在多处岩石蚀变和铅锌锑黄铁矿等矿化点。对预测区内围岩(蚀变灰岩)及岩浆岩(石英闪长玢岩、辉绿岩)岩石样品进行等离子体质谱(ICP-MS)测试分析, 从成矿、微量和稀土元素的地球化学特征及与成矿作用之间关系反映出该地区可能具有良好的成矿环境, 结合对该区各类成矿地质条件及前人的物化探研究成果, 确定在其地下不深处存在有成矿地质体, 为预测区成矿提供充足的物质来源。预测白面山中西部地下500~800 m深处可能存在一个具有相当规模的中-低温矽卡岩型铅锌银多金属矿床。
- 粤北 /
- 白面山 /
- 铅锌银多金属矿床 /
- 地球化学信息 /
- 找矿预测 /
Abstract: According to the Baimianshan metallogenic forecasting area geological investigation to the west of Dabaoshan Mo deposit, we know that this area highly developed fault structures, mainly for the NW, NE and nearly NW three groups, among them, the NW fracture formed in the earliest time while NE the last. Along the NW and NE fault structures, we can see lots of suffer basic rock vein intruded. Following our investigation, we also find that along the fault zone of the surface existing multiple rock alteration and antimony lead-zinc pyrite mineralization points. Based on the test analysis in this area of surrounding rock and magmatic rock samples (ICP-MS), and from mineralization and geochemical characteristics of trace and rare earth elements reflecting the region is likely to have good metallogenic environment, combination of various metallogenic geological conditions and the predecessor's research of geochemical exploration work, we can conclude that there has ore-forming geological body which is not far from underground, and provided sufficient material sources for this region mineralization. Through the metallogenic information in this paper, we predict that between 500~800 meters underground in the mid-west of Baimianshan may be a considerable scale deposit of low temperature skarn type and zinc silver multi-metal.
- north of Guangdong /
- Baimianshan /
- geological characteristics /
- Pb-Zn-Ag polymetallic deposit /
- geochemical information /
- prospecting forecasting

HTML全文

图 1 白面山成矿预测区地质简图

1—中泥盆统东岗岭组灰岩；2—上泥盆统天子岭组灰岩；3—上泥盆统-下石炭统帽子峰组泥岩；4—下石炭统大赛坝组+长来组粉砂质泥岩；5—第四系覆盖物；6—石英闪长玢岩脉；7—辉绿岩脉；8—铁帽；9—实测断层；10—推测断层；11—地质界线；12—推测地质界线

Figure 1. A sketch geological map of the Baimianshan metallogenic forecasting area

下载: 全尺寸图片幻灯片

图 2 蚀变灰岩微量元素蛛网图

Figure 2. Cobweb partterns of trace element for alteration limestone

下载: 全尺寸图片幻灯片

图 3 岩浆岩微量元素蛛网图

Figure 3. Cobweb partterns of trace element for magmatic rocks

下载: 全尺寸图片幻灯片

图 4 蚀变灰岩稀土元素配分曲线图

Figure 4. REE patterns for alteration limestone

下载: 全尺寸图片幻灯片

图 5 岩浆岩稀土元素配分曲线图

Figure 5. REE patterns for magmatic rocks

下载: 全尺寸图片幻灯片

图 6 B0153铅锌矿石金属矿物组合特征及野外露头

Figure 6. B0153 lead-zinc ore metal mineral assemblages and field outcrop

下载: 全尺寸图片幻灯片

图 7 白面山成矿预测区综合物探推测剖面图(a, b为同一测量点两个相互垂直剖面)

(据广东物化探院[2008]、中国地质调查局武汉地质调查中心[2012])

Figure 7. A comprehensive geophysical suppositional profile map of Baimianshan metallogenic forecasting area

下载: 全尺寸图片幻灯片

表 1 白面山预测区蚀变灰岩微量元素含量(×10^-6)

Table 1. Trace elements of the meta-alteration limestone in Baimianshan forecasting area

序号	岩性	Rb	Ba	Th	U	Ta	Nb	La	Ce	Sr	Nd	Zr	Hf	Sm	Y	Yb	Lu	Mo	Tl	Bi	Cd	Sb	W	Zr/Hf	Nb/Ta
B004	中厚层灰黑色灰岩	6.950	17.300	0.565	1.120	0.164	0.540	2.050	4.030	663	1.800	6.130	0.168	0.372	1.870	0.163	0.024	0.166	0.078	0.047	0.206	0.675	1.200	36.488	3.293
B016	厚层状灰黑色灰岩	27.800	333.0	2.360	1.370	0.205	2.330	6.320	12.70	415	5.850	30.70	0.815	1.240	5.620	0.596	0.097	0.418	0.267	0.221	0.317	5.700	0.590	37.669	11.367
B043	厚层状灰白色灰岩	7.690	3488.0	0.762	0.463	0.045	0.514	4.770	9.000	410	3.890	6.820	0.222	0.804	3.730	0.341	0.057	0.248	0.326	1.240	0.791	3.330	0.441	30.721	11.422
B054-2	厚层状灰白色灰岩	17.500	64.2	1.560	0.830	0.122	1.590	3.220	6.630	180	2.960	23.10	0.657	0.634	3.150	0.366	0.061	0.138	0.137	0.095	11.40	3.030	0.670	35.160	13.033
B057-1	灰白色灰岩	14.200	49.5	2.600	1.230	0.162	2.100	8.540	16.70	392	8.200	25.20	0.737	1.710	8.030	0.682	0.107	0.976	0.131	0.134	0.089	2.520	0.303	34.193	12.963
B058	土黄色泥质灰岩	16.100	90.2	2.100	0.513	0.164	1.840	4.800	10.80	250	5.590	13.90	0.395	1.550	8.250	0.644	0.093	0.499	0.133	0.166	0.180	2.890	0.455	35.190	11.220
B077	中厚层灰白色灰岩	8.220	25.1	0.709	1.230	0.039	0.527	3.690	6.470	336	2.520	8.350	0.243	0.474	2.190	0.210	0.039	0.674	0.154	0.076	0.188	1.240	0.271	34.362	13.513
B081	厚层灰白色灰岩	23.400	57.6	1.920	0.997	0.194	2.220	8.960	15.10	488	6.060	27.10	0.794	1.080	4.850	0.496	0.077	1.010	0.216	0.466	0.368	16.20	0.657	34.131	11.443
B0128	中厚层状灰岩	39.900	232.0	2.560	1.010	0.154	2.030	9.970	16.60	151	8.830	26.00	0.783	2.190	10.20	1.060	0.158	0.224	0.269	0.267	0.175	2.810	0.821	33.206	13.182
B0153	厚层状灰白色灰岩	5.210	27.30	0.828	0.705	0.095	1.060	3.550	6.890	531	3.180	18.60	0.483	0.666	3.470	0.305	0.047	0.322	0.093	0.160	27.20	1.840	0.323	38.509	11.158
B0159	中厚层状微晶灰岩	1.780	51.90	0.128	0.273	0.020	0.097	1.540	2.310	466	0.966	1.160	0.036	0.173	0.924	0.062	0.010	0.118	0.047	0.057	2.930	1.080	0.101	32.222	4.850
B0185	方解石化泥晶灰岩	5.920	35.30	0.569	0.942	0.049	0.448	1.720	2.920	527	1.270	5.670	0.157	0.245	1.360	0.130	0.023	0.227	0.105	0.072	1.460	1.140	0.276	36.115	9.143
注：B0153号样品为预测区内石英闪长玢岩岩脉南侧采集的铅锌矿石

下载: 导出CSV

表 2 白面山预测区岩浆岩中微量元素含量(×10^-6)

Table 2. Trace elements of the meta-magmatic rocks in Baimianshan forecasting area

序号	岩性	Rb	Ba	Th	U	Ta	Nb	La	Ce	Sr	Nd	Zr	Hf	Sm	Y	Yb	Lu	Mo	Tl	Bi	Cd	Sb	W	Zr/Hf	Nb/Ta
B020	石英闪长玢岩	35.2	100	3.15	0.802	1.74	26.2	64.8	84.5	24.8	90.3	433	11.8	22.4	103	9.09	1.38	0.681	0.34	0.023	0.656	24.10	1.21	36.695	15.057
B032	石英闪长玢岩	29.3	24.8	1.95	0.423	1.33	19.8	16.3	42.5	89.3	32.5	202	5.88	8.49	48.2	4.3	0.599	0.86	0.257	0.036	0.388	33.70	5.12	34.354	14.887
B0165	辉绿岩	1.95	11.2	0.161	0.639	0.012	0.106	1.61	2.96	516	1.2	1.07	0.033	0.202	0.9	0.072	0.013	0.061	0.031	0.084	0.389	0.708	0.08	32.424	8.833
B0176	辉绿岩	10.8	4608	1.51	1.26	0.062	0.673	10.3	25.6	9.7	12.3	16.4	0.518	3.02	8.11	1.03	0.148	1.21	0.428	0.158	0.604	7.75	0.504	31.660	10.855
注：B0165号辉绿岩样品发育褐铁矿化，B0176号样品氧化成为铁帽

下载: 导出CSV

表 3 白面山预测区蚀变灰岩稀土元素含量(×10^-6)

Table 3. REE elements of the meta-alteration limestone in Baimianshan forecasting area

序号	岩性	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	ΣREE	LREE	HREE	LREE/HREE	(La/Yb)_N	δEu	δCe
B004	中厚层灰黑色灰岩	2.050	4.030	0.456	1.800	0.372	0.072	0.327	0.054	0.324	0.061	0.165	0.030	0.163	0.024	9.928	8.780	1.148	7.648	9.020	0.617	0.980
B016	厚层状灰黑色灰岩	6.320	12.700	1.430	5.850	1.240	0.215	1.010	0.173	1.000	0.195	0.545	0.102	0.596	0.097	31.473	27.755	3.718	7.465	7.610	0.569	0.990
B043	厚层状灰白色灰岩	4.770	9.000	0.968	3.890	0.804	0.284	0.730	0.118	0.727	0.139	0.364	0.065	0.341	0.057	22.257	19.716	2.541	7.759	10.030	1.112	0.970
B054-2	厚层状灰白色灰岩	3.220	6.630	0.760	2.960	0.634	0.124	0.556	0.098	0.607	0.116	0.326	0.063	0.366	0.061	16.521	14.328	2.193	6.533	6.310	0.624	1.000
B057-1	灰白色灰岩	8.540	16.700	2.050	8.200	1.710	0.347	1.440	0.253	1.460	0.286	0.724	0.118	0.682	0.107	42.617	37.547	5.070	7.406	8.980	0.658	0.950
B058	土黄色泥质灰岩	4.800	10.800	1.260	5.590	1.550	0.428	1.290	0.243	1.500	0.272	0.695	0.121	0.644	0.093	29.284	24.428	4.856	5.030	5.350	0.900	1.050
B077	中厚层灰白色灰岩	3.690	6.470	0.669	2.520	0.474	0.090	0.442	0.072	0.411	0.079	0.209	0.037	0.210	0.039	15.412	13.913	1.499	9.282	12.600	0.591	0.940
B081	厚层灰白色灰岩	8.960	15.100	1.650	6.060	1.080	0.234	1.030	0.168	0.942	0.184	0.494	0.088	0.496	0.077	36.563	33.084	3.479	9.510	12.960	0.669	0.890
B0128	中厚层状灰岩	9.970	16.600	2.190	8.830	2.190	0.518	1.860	0.347	2.090	0.395	1.030	0.186	1.060	0.158	47.424	40.298	7.126	5.655	6.750	0.765	0.830
B0153	厚层状灰白色灰岩	3.550	6.890	0.786	3.180	0.666	0.312	0.617	0.106	0.638	0.124	0.317	0.056	0.305	0.047	17.594	15.384	2.210	6.961	8.350	1.463	0.970
B0159	中厚层状微晶灰岩	1.540	2.310	0.244	0.966	0.173	0.041	0.173	0.026	0.147	0.028	0.072	0.012	0.062	0.010	5.804	5.274	0.530	9.951	17.820	0.717	0.830
B0185	方解石化泥晶灰岩	1.720	2.920	0.336	1.270	0.245	0.049	0.251	0.039	0.232	0.046	0.126	0.022	0.130	0.023	7.409	6.540	0.869	7.526	9.490	0.599	0.880
注：B0153号样品为预测区内石英闪长玢岩岩脉南侧采集的铅锌矿石；测试单位为核工业北京地质研究院分析测试研究中心

下载: 导出CSV

表 4 白面山预测区岩浆岩中稀土元素含量(×10^-6)

Table 4. REE elements of the meta-magmatic rocks in Baimianshan forecasting area

序号	岩性	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	ΣREE	LREE	HREE	LREE/HREE	(La/Yb)_N	δEu	δCe
B020	石英闪长玢岩	64.80	84.50	19.00	90.30	22.40	7.54	19.30	3.81	24.00	4.32	10.70	1.740	9.090	1.380	362.880	288.540	74.340	3.881	5.11	1.0819	0.58
B032	石英闪长玢岩	16.30	42.50	6.56	32.50	8.49	3.01	7.36	1.57	11.00	2.04	4.92	0.841	4.300	0.599	141.990	109.360	32.630	3.352	2.72	1.1368	1.01
B0165	辉绿岩	1.610	2.96	0.33	1.20	0.20	0.05	0.19	0.03	0.16	0.03	0.08	0.013	0.072	0.013	6.927	6.345	0.582	10.902	16.04	0.7251	0.95
B0176	辉绿岩	10.30	25.60	3.16	12.30	3.03	0.65	2.08	0.38	2.13	0.38	1.02	0.174	1.030	0.148	62.385	55.041	7.344	7.495	7.17	0.7501	1.09
注：B0165号辉绿岩样品发育褐铁矿化，B0176号样品氧化成为铁帽

下载: 导出CSV

参考文献(11)

[1]	韩吟文, 马振东.地球化学[M].北京:地质出版社, 2003. HAN Yin-wen, MA Zhen-dong. Geochemistry[M]. Beijing: Geological Publishing House, 2003.
[2]	薛钧月, 李巨初, 王红军.康滇地轴南段江川盆地澄江砂岩微量元素地球化学特征及其地质意义[J].东华理工大学学报:自然科学版, 2009, 32(1):45~51. http://www.cnki.com.cn/Article/CJFDTOTAL-HDDZ200901010.htm XUE Jun-yue, LI Ju-chu, WANG Hong-jun. Geochemical characteristics of trace elements and geological significance of Chengjiang sand stone in Jiangchuan Basin, Kangdian Axis[J]. Journal of East China Institute of Technology: Natural Science Edition, 2009, 32(1): 45~51. http://www.cnki.com.cn/Article/CJFDTOTAL-HDDZ200901010.htm
[3]	唐永永, 毕献武, 和利平, 等.兰坪金顶铅锌矿方解石微量元素、流体包裹体和碳-氧同位素地球化学特征研究[J].岩石学报, 2011, 27(9):2635~2645. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201109014.htm TANG Yong-yong, BI Xian-wu, HE Li-ping, et al. Geochemical characteristics of trace elements, fluid inclusions and carbon-oxygen isotopes of calcites in the Jinding Zn-Pb deposit, Lanping, China[J]. Acta Petrologica Sinica, 2011, 27(9): 2635~2645. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201109014.htm
[4]	王瑞廷, 李芳林, 陈二虎, 等.陕西凤县八方山-二里河大型铅锌矿床地球化学特征及找矿预测[J].岩石学报, 2011, 27(3):779~793. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201103018.htm WANG Rui-ting, LI Fang-lin, CHEN Er-hu, et al. Geochemical characteristics and prospecting prediction of the Bafangshan-Erlihe large lead-zinc ore deposit, Feng County, Shaanxi Province, China[J]. Acta Petrologica Sinica, 2011, 27(3): 779~793. http://www.cnki.com.cn/Article/CJFDTOTAL-YSXB201103018.htm
[5]	钱鹏, 陆建军.德兴铜矿花岗闪长斑岩物质来源的微量元素研究[J].地质找矿论丛, 2005, 20(2):75~80. http://www.cnki.com.cn/Article/CJFDTOTAL-DZZK200502001.htm QIAN Peng, LU Jian-jun. The material resources of granodiorete porphyry in the Dexing copper ore district: A study on trace elements[J]. Contributions to Geology and Mineral Resources Research, 2005, 20(2): 75~80. http://www.cnki.com.cn/Article/CJFDTOTAL-DZZK200502001.htm
[6]	Taylor S R, Gorton M P. Geochemical application of spark source mass spectrography Ⅲ: Elment sensitivity precision and accuracy[J]. Geochim Cosmochin Acta, 1977, 41: 1375~1380. doi: 10.1016/0016-7037(77)90080-1
[7]	丁振举, 刘丛强, 姚书振, 等.东沟坝多金属矿床矿质来源的稀土元素地球化学限制[J].吉林大学学报, 2003, 33(4):437~442. http://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ200304009.htm DING Zhen-ju, LIU Cong-qiang, YAO Shu-zhen, et al. The REE constraints on ore sources of the Donggouba polymetallic deposit [J]. Journal of Jilin University: Earth Science Edition, 2003, 33(4): 437~442. http://www.cnki.com.cn/Article/CJFDTOTAL-CCDZ200304009.htm
[8]	徐晓春, 陆三明, 谢巧勤, 等.铜陵狮子山矿田岩浆岩及金矿床的稀土元素地球化学[J].中国稀土学报, 2006, 24(5):615~622. http://www.cnki.com.cn/Article/CJFDTOTAL-XTXB200605019.htm XU Xiao-chun, LU San-ming, XIE Qiao-qin, et al. Rare earth element in magmatic rocks and gold deposits in Shizishan ore field of Tongling, China [J]. Journal of the Chinese Rare Earth Society, 2006, 24(5): 615~622. http://www.cnki.com.cn/Article/CJFDTOTAL-XTXB200605019.htm
[9]	权立诚, 韦昌山, 蔡锦辉.粤北白面山地区地球化学特征及找矿预测依据[J].矿物学报, 2013, (S2):957~958. http://www.cnki.com.cn/Article/CJFDTOTAL-KWXB2013S2530.htm QUAN Li-cheng, WEI Chang-shan, CAI Jin-hui. The north of Guangdong Baimianshan area rock geochemical characteristics and the evidencn of ore prospecting[J]. Acta Minalogica Sinica, 2013, (S2): 957~958. http://www.cnki.com.cn/Article/CJFDTOTAL-KWXB2013S2530.htm
[10]	杜国民, 梅玉萍, 蔡红, 等.粤北大宝山钼多金属矿床年代学研究及其意义[J].华南地质与矿产, 2012, 28(3):226~231. http://cdmd.cnki.com.cn/Article/CDMD-10491-2010250517.htm DU Guo-min, MEI Yu-ping, CAI Hong, et al. Geochronology Research and Its Significance for Mo-W Polymetallic Deposit of Dabao Mountain in Northern Guangdong province[J]. Geology and Mineral Resources of South China, 2012, 28(3): 226~231. http://cdmd.cnki.com.cn/Article/CDMD-10491-2010250517.htm
[11]	王磊, 胡明安, 杨振, 等.粤北大宝山矿区花岗闪长斑岩LA-ICP-MS锆石U-Pb年龄及其地质意义[J].地球科学-中国地质大学学报, 2010, 35(2):175~185. http://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201002001.htm WANG Lei, HU Ming-an, YANG Zhen, et al. Geochronology and its geological implications of LA-ICP-MS zircon U-Pb dating of granodiorite porphyries in Dabaoshan polymetallic ore deposit, north Guangdong Province[J]. Earth Science: Journal of China University of Geosciences, 2010, 35(2): 175~185. http://www.cnki.com.cn/Article/CJFDTOTAL-DQKX201002001.htm