摘要
矿产资源定量估算是矿产资源评价的重要内容,针对安徽庐枞地区陆相火山岩型铁矿的罗河式、龙桥式2种类型,利用地质体积法、数量化理论Ⅰ、专家估分法、品位-吨位模型法及磁测定量估算法5种比较常用的资源量估算方法分别对该区铁矿进行了资源量估算。对比分析5种方法估算结果:磁测定量估算法估算的Ⅱ级资源量(5.02亿t)结果偏低、Ⅲ级资源量(30.46亿t)偏大;专家估分法估算资源量(4.55亿t)是最低的结果;品位-吨位模型法估算资源量(13.35亿t)结果偏低;数量化理论Ⅰ应用数学模拟估算结果(20.22亿t)偏大;地质体积法充分利用了各种地质条件,估算的资源量(14.90亿t)符合该区实际。据此,地质体积法适用性较好。
Quantitative estimation of mineral resources is an important step in resources assessment.Five methods such as geological volumetric method,quantification theory type I,Delphi method,grade-tonnage model method and magnetic quantitative estimation method are used in the studied area.The first four estimation results are as follows： 1.49 billion tons,2.022 billion tons,0.455 billion tons and 1.335 billion tons,respectively.There exist 0.502 billion tons（gradeⅡresource volume） and 3.046 billion tons（grade Ⅲ resource volume） by the last method.The first method takes advantage of a variety of geological conditions;the result is accordance with the actual case in the studied area.Therefore,the method shows better performance in this area.
出处
《吉林大学学报（地球科学版）》
EI
CAS
CSCD
北大核心
2013年第4期1119-1128,共10页
Journal of Jilin University：Earth Science Edition
基金
中国地质调查局地质大调查项目(1212010813011)
关键词
资源量估算
铁矿
庐枞地区
安徽
resources estimate
iron deposits
Lujiang-Zongyang area
Anhui Province
