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| 广西大厂矿田拉么-羊角尖一带含矿地层元素地球化学特征及其指示意义 | |
| 引用本文： | 王东明,于萍,黑欢,刘博胜,袁远,黄惠明,王显彬.广西大厂矿田拉么-羊角尖一带含矿地层元素地球化学特征及其指示意义[J].大地构造与成矿学,2012,36(3):384-391. |
| 作者姓名： | 王东明 于萍 黑欢 刘博胜 袁远 黄惠明 王显彬 |
| 作者单位： | 1. 黑龙江省区域地质调查所,黑龙江哈尔滨150080;长安大学地球科学与资源学院,长安大学成矿作用与动力学实验室,陕西西安710054 2. 长安大学地球科学与资源学院,长安大学成矿作用与动力学实验室,陕西西安710054 3. 广西华锡集团有限公司,广西柳州,545006 4. 广西大学资源与环境学院,广西南宁,530004 |
| 基金项目： | 国家深部探测技术与实验研究专项“南岭成矿带地壳岩浆系统结构探测实验”课题，全国危机矿山典型矿床及区域成矿规律总结研究专项“桂东-粤西地区铅锌金等矿床成矿规律总结研究”，国土资源部公益性行业科研专项:我国典型金属矿床科学基地研究 |
| 摘 要： | 广西大厂矿田锡矿体主要赋存于上泥盆统,锌铜矿体主要赋存在锡矿体的下部,以中泥盆统为主。通过对拉么-羊角尖一带四个钻孔中不同深度、不同岩石类型样品成矿元素含量的系统分析,探讨了成矿元素在空间上的变化规律。结果显示,绝大多数成矿元素在岩体中含量最低,向上至各个地层中呈锯齿状变化,而且多数成矿元素的高值点并没有在岩体的内部或边缘,而是远离一段距离,Zn、Cu集中在罗富组灰岩蚀变后的透辉石绿帘石化矽卡岩中。这种元素含量的变化一方面反映了成矿元素运移的方向是由下而上,另一方面也反映了成矿元素的富集与岩石类型密切相关,说明矿床为岩浆热液成因。 |
| 关 键 词： | 广西大厂矿田 含矿地层 元素地球化学 指示意义 |
Element Geochemistry of Ore-Containing Strata and its Significance for Deep Prospecting in the Lame-Yangjiaojian Area of the Dachang Ore Field, Guangxi |
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| WANG Dongming , YU Ping , HEI Huan , LIU Bosheng , YUAN Yuan , HUANG Huiming , WANG Xianbin.Element Geochemistry of Ore-Containing Strata and its Significance for Deep Prospecting in the Lame-Yangjiaojian Area of the Dachang Ore Field, Guangxi[J].Geotectonica et Metallogenia,2012,36(3):384-391. | |
| Authors: | WANG Dongming YU Ping HEI Huan LIU Bosheng YUAN Yuan HUANG Huiming WANG Xianbin |
| Institution: | 1.Institute of Regional Geology Survey,Harbin 150080,Heilongjiang,China;2.College of Earth Science and Resources,Laboratory of Metallogenesis and Dynamics,Chang’an University,Xi’an 710054,Shaanxi,China;3.Guangxi Huaxi Co.Ltd.Guangxi,Liuzhou 545006,Guangxi,China;4.College of Resources and Environment,Guangxi University,Nanning 530004,Guangxi,China) |
| Abstract: | Upper Devonian is the main ore-bearing strata for the stratiform ore bodies in the Dachang ore field in Guangxi.Zinc-copper ore bodies are enriched in Middle Devonian,below the stratiform ore bodies.This paper analyzed the ore metal contents of samples from four representative drill holes in the Lame-Yangjiaojian area.The results show that most of the ore-forming elements have the lowest contents in the granite and exhibiting zigzag variation tendency in the host rocks.Ore-forming elements are enriched far from the granite,neither in nor beside it.Most of the high contents of zinc and copper are concentrated in diopside-epidote skarn of the Luofu Group of Middle Devonian.The results indicate that the ore-forming elements migrating from the granite to the host rocks,and preferentially enriched in certain rock types,which is also suggestive of magmatic hydrothermal origin for the deposit. |
| Keywords: | Dachang ore filed Guangxi ore-bearing strata element geochemistry indicative significance |
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