文章摘要
封建平,曾彪,白宗海,谭运鸿,保善东,邱炜.青海拉陵灶火中游地区铜多金属矿地球物理特征及其找矿意义[J].矿产勘查,2019,(5):1166-1172
青海拉陵灶火中游地区铜多金属矿地球物理特征及其找矿意义
Study on the geophysical features and its metallogenic significance of the middle of the Lalingzaohuo, Qinghai
投稿时间:2018-08-20  
DOI:
中文关键词: 拉陵灶火中游  地球物理特征  大功率激电  高精度磁测  青海
英文关键词: in the middle of the La Ling fire,the geophysical features,high-power Ip method application,high precision magnetic survey
基金项目:青海省科技厅基础研究项目(编号:2018-ZJ-779)资助。
作者单位
封建平 青海省地质调查院, 西宁 810012
青海省青藏高原北部地质过程与矿产资源重点实验室,西宁 810012 
曾彪 青海省地质调查院, 西宁 810012
青海省青藏高原北部地质过程与矿产资源重点实验室,西宁 810012 
白宗海 青海省地质调查院, 西宁 810012
青海省青藏高原北部地质过程与矿产资源重点实验室,西宁 810012 
谭运鸿 青海省地质调查院, 西宁 810012
青海省青藏高原北部地质过程与矿产资源重点实验室,西宁 810012 
保善东 青海省地质调查院, 西宁 810012
青海省青藏高原北部地质过程与矿产资源重点实验室,西宁 810012 
邱炜 青海省地质矿产研究所,西宁 810012 
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中文摘要:
      近年来在拉陵灶火中游地区发现铜多金属矿床,矿体赋存于中三叠世石英闪长岩与古元古界金水口岩群接触带,矿体顶底围岩均为石英闪长岩,顶板岩体均被第四系冲洪积物覆盖,覆盖厚度较大。岩体与矿体呈整合侵入接触,二者接触界线清晰,矿化蚀变不发育。矿体受构造、岩浆岩及矽卡岩三者共同影响。区内岩石物性测定结果显示,矽卡岩铜钼矿石与顶底板石英闪长岩之间具有明显磁性差异;矽卡岩铜钼矿石与矿体顶底板石英闪长岩、金水口岩群地层之间的激发极化效应差异较为明显。通过区内高磁异常成果结合区内地质情况分析,适合开展大比例尺大功率激电中梯测量。在已知矿段显示较好的激电异常,为下一步找矿提供了依据。
英文摘要:
      Some copper polymetallic deposits are found in Lalingzaohuo in recent yeorrs. The Triassic copper polymetallic ore bodies are located in the contact between the quartz diorite and paleoproterozoic Jinshuikou group. Ore body are quartz diorite or surrounding rock. Roof rock mass are covered by thick quaternary diluvium. The surrounding rocks of the ore body are quartz diorite, The contact boundary between rock and ore is clear and distinct. The ore body is controlled by the types of structure, magmatite and skarn. The results show that there are significant magnetic differences between skarn and quartz diorite. The difference of induced polarization effect between skarn copper molybdenum ore and quartz diorite and Jinshuikou formation is obvious. Based on the results of high magnetic anomaly and the geological conditions in the area, large scale high power IP medium step measurement should be carried out. The exposed ore sections showed better IP anomalies, which provided the basis for further prospecting.
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