中太平洋SA海山钴结壳勘查网度分析  

ANALYSIS OF EXPLORATORY GRID FOR COBALT CRUST RESOURCES ON SA SEAMOUNT IN THE CENTRAL PACIFIC

作　　者：章伟艳[1] 胡光道[2] 张富元[1] 杨胜雄[3] 殷汝广[4] 赵宏樵[1] 

机构地区：[1]国家海洋局第二海洋研究所国家海洋局海底科学重点实验室,浙江杭州310012 [2]中国地质大学数学地质遥感地质研究所,湖北武汉430074 [3]国土资源部广州海洋地质调查局,广东广州510760 [4]国家海洋信息中心,天津300171

出　　处：《矿物学报》2008年第3期317-322,共6页Acta Mineralogica Sinica

基　　金：中国大洋协会资助项目(DYXM1115-01-1-06);国家海洋局第二海洋研究所基本科研业务费专项资金项目(JG0709);科学技术部资助项目(2004DIB3J086)

摘　　要：资源勘查过程是一个不断获取新的资源信息过程,选择最优勘查网度是降低勘查成本、加快勘查速度的关键之一,地质统计学方法在勘查网度研究方面有很大的优越性。本文选取中太平洋SA海山作为研究对象,利用地质统计学法,建立SA海山结壳厚度的理论变差函数模型。根据估计方差是勘探网度和网型的函数这一原理方法,分析认为当前的勘查网度无法控制该海山钴结壳的分布,还需加密调查取样,并模拟得出了最优勘查网度,为大洋矿产勘查航次设计提供参考。Resource exploratory process is a process for continuously obtaining information about new resources. It is one of the key problems for reducing exploratory cost and accelerating exploratory velocity for choosing optimal exploratory grid. Geostatistics data have many advantages for evaluatiing exploratory grid. The geostatistics data were applied to analyzing the geological features of the SA seamount in the central Pacific. The theoretical variogram model of cobalt crust thickness on the SA seamount was established with the Ordinary Kriging method. Current exploratory grid could not control the distribution of cobalt crust on the seamount according to the variance laws of thickness being the function of exploratory grid and grid type. It is necessary to get more samples for investigation. The optimal exploratory grid was determined to provide references for designing of various voyages for ocean resource exploratory investigations.

关 键 词：中太平洋海山 地质统计学 钴结壳 勘查网度 变差函数 普通克立格法 

分 类 号：P714[天文地球—海洋科学] P744