| 蚀变带元素地球化学成矿预测法——以金龙山微细浸染型金矿为例 |
| |
| 引用本文： | 赵利青.蚀变带元素地球化学成矿预测法——以金龙山微细浸染型金矿为例[J].地质与资源,1997,6(3):214-220. |
| |
| 作者姓名： | 赵利青 |
| |
| 作者单位： | 北京大学地质学系 |
| |
| 摘 要： | 金矿化作用伴随围岩蚀变,且多受断裂控制,反映在地球化学上出现某些元素的异常晕.在已发现一定矿(化)体并掌握一般控矿特征的地区,利用已有工程,经科学的组合采样(主要在蚀变带范围内连续拣块采样),分析有关指示元素,总结有关的地球化学指标,建立地球化学预测模式(从元素异常特征或线金属量、地球化学指标或元素比值、逐步回归方程估值等三方面),对已知矿(化)体及外围异常进行地球化学评价研究.这就是蚀变带元素地球化学成矿预测法.该方法在秦岭南坡金龙山微细浸染型金矿上的应用有较好的效果.本方法的预测是半定量或定性的,回归分析估值是近似定量的,同时也是有效的,低成本的.
|
| 关 键 词： | 元素地球化学 成矿预测 蚀变带 金矿 金龙山 |
| 收稿时间： | 1996-11-22 |
THE METHOD OF GEOCHEMICAL METALLOGENIC PROGNOSIS IN MINERALIZED ALTERATION ZONE —TAKING JINLONGSHAN MICRO FINE DISSEMINATED GOLD DEPOSIT FOR EXAMPLE |
| |
| Zhao Liqing.THE METHOD OF GEOCHEMICAL METALLOGENIC PROGNOSIS IN MINERALIZED ALTERATION ZONE —TAKING JINLONGSHAN MICRO FINE DISSEMINATED GOLD DEPOSIT FOR EXAMPLE[J].Geology and Resources,1997,6(3):214-220. |
| |
| Authors: | Zhao Liqing |
| |
| Institution: | Department of Geology, Peking University, Beijing, 100871 |
| |
| Abstract: | Gold mineralization is usualy accompanied by wall rock alteration and mostly controlled by faults or fracturcs.It reflects some elements' anomalies in geochemistry.In an area where certain gold mineralzation or ore bodies have been found and the general features of ore controlling have been recognized,geochemists can collect composite samples properly,mainly in the region of mineralized alteration zone,analyses involved indicator elements,summarize geochemical indexes,set up the model of geochemical metallogenic prognosis based on the nature of elements' anomalies or linear productivity,the geochemical indexes or elements' ratios,the estimated values of gradual regression equations,then,forecast the deep of known mineralization or ore bodies,and finally evaluate the prospects of peripheral anomalies.This is named as“the method of geochemical metallogenic prognosis in alteration zone”.The method is successful at Jinlongshan gold deposit which is of a sediment hosted micro fine dissminated type in Qinling Mountain.The prognosis is semi quantitative or qualitative.The estimated value of regression analysis is nearly quantitative.It is also effective and low cost. |
| |
| Keywords: | elemental geochemistry metallogenic prognosis alteration zone gold deposit Jinlongshan |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地质与资源》浏览原始摘要信息 |
| 点击此处可从《地质与资源》下载免费的PDF全文 |
|
