基于Surfer软件趋势面方法的区域化探资料二次开发与找矿预测——以九瑞铜多金属矿集区为例
|
摘要
地质资料的二次开发是金属矿山成矿预测的一个有效途径。笔者在承担九瑞铜多金属矿集区找矿科研工作中,基于Surfer软件,应用"多元回归法",对九瑞铜多金属矿集区上世纪90年中后期的1/5万土壤地球化学测量数据进行二次开发,通过其各观测点主成矿元素三次趋势面分析正剩余值计算及异常等值线的圈定,有效地消除传统方法编制的地球化学图产生的噪音,从而更真实、客观、全面、准确地反映出元素的客观分布规律。在此基础上,结合九瑞铜多金属矿集区的成矿规律,对比土壤地球化学三次趋势面正剩余值等值线与金属矿(化)床(点)的空间分布关系,开展了金属矿找矿预测,圈定出找矿有利地区,为九瑞铜多金属矿集区下步找矿工作提供了重要依据。
The secondary development of geologic data was an effective way of metallogenic prediction of metalliferous mines. Using image factoring based on Surfer,we reanalyzed the 1/50000 geochemical soil survey data in the late1990's. By locating the positive residual value counted by third trend surface analysis and isoanomalic contour of the main metallogenic element every observing point,we effectively abated the noise from geochemical map made by traditional methods and reflected objective distribution of elements more truthfully,comprehensively and exactly. On the basis of this,combining metallogenic regularity in Jiurui copper polymetallic ore-concentrated area and comparing of the relationship of the positive residual contour of soil geochemical three trend surface and the spatial distribution of ore deposit( or mineralization point),we developed the metal ore prospecting prediction and delimited the favorable areas for prospecting,which provided an important basis for the next prospecting work in Jiurui copper polymetallic ore-concentrated area.
The secondary development of geologic data was an effective way of metallogenic prediction of metalliferous mines. Using image factoring based on Surfer,we reanalyzed the 1/50000 geochemical soil survey data in the late1990's. By locating the positive residual value counted by third trend surface analysis and isoanomalic contour of the main metallogenic element every observing point,we effectively abated the noise from geochemical map made by traditional methods and reflected objective distribution of elements more truthfully,comprehensively and exactly. On the basis of this,combining metallogenic regularity in Jiurui copper polymetallic ore-concentrated area and comparing of the relationship of the positive residual contour of soil geochemical three trend surface and the spatial distribution of ore deposit( or mineralization point),we developed the metal ore prospecting prediction and delimited the favorable areas for prospecting,which provided an important basis for the next prospecting work in Jiurui copper polymetallic ore-concentrated area.
引文
[1]连永牢,王艳忠,陈桂虎,等.地质资料的二次开发:金属矿山成矿预测的一个有效途径[J].中国矿业,2012,21(10):9.
[2]陈仕炎,高建国.会泽铅锌矿矿山厂矿段趋势面分析及深部预测[J].云南地质,2005,24(4):442.
[3]李随民,姚书振,韩玉丑. Surfer软件中利用趋势面方法圈定化探异常[J].地质与勘探,2007,43(2):72.
[4]王营营,孙莉莉,王志章,等.测井资料趋势面分析法标准化流程建立[J].油气地球物理,2010,8(4):5.
[5]杨明桂,余忠珍,曹钟清,等.鄂东南—赣西北坳陷金属成矿地质特征与“层—体”耦合成矿模式[J].资源调查与环境,2011,32(1):1.
[6]吕新彪,姚书振,周宗桂.江西九瑞地区岩浆岩系统与成矿[J].华南地质与矿产,1997,2(1):27.
[7]曹晓明,周贤旭,钟浩.“就矿找矿”的认识与实践[J],东华理工大学学报(自然科学版),2011,34(1):51.
[8]吴良士.江西九瑞地区两种岩浆侵位类型及其成矿特征[J].矿床地质,1998,17(1):36.
[2]陈仕炎,高建国.会泽铅锌矿矿山厂矿段趋势面分析及深部预测[J].云南地质,2005,24(4):442.
[3]李随民,姚书振,韩玉丑. Surfer软件中利用趋势面方法圈定化探异常[J].地质与勘探,2007,43(2):72.
[4]王营营,孙莉莉,王志章,等.测井资料趋势面分析法标准化流程建立[J].油气地球物理,2010,8(4):5.
[5]杨明桂,余忠珍,曹钟清,等.鄂东南—赣西北坳陷金属成矿地质特征与“层—体”耦合成矿模式[J].资源调查与环境,2011,32(1):1.
[6]吕新彪,姚书振,周宗桂.江西九瑞地区岩浆岩系统与成矿[J].华南地质与矿产,1997,2(1):27.
[7]曹晓明,周贤旭,钟浩.“就矿找矿”的认识与实践[J],东华理工大学学报(自然科学版),2011,34(1):51.
[8]吴良士.江西九瑞地区两种岩浆侵位类型及其成矿特征[J].矿床地质,1998,17(1):36.