CAJ | 학술논문

以赤峰北部地区的Pb 1/20万化探扫描资料为基础,应用地球化学块体理论与方法,对研究区内Pb的地球化学块体特征及铅矿产资源特征进行了系统研究.确定了2个规模不等的Pb地球化学块体,6个规模相对较小的Pb地球化学异常区.分析了含矿Pb地球化学块体的控制因素:燕山期中酸性侵入杂岩的接触带或接触外带是块体产出的有利部位;二叠系黄岗梁组、大石寨组及侏罗系玛尼土组、新民组和志留系上统杏树洼组等为主要块体赋存层位;北西向、北东向断裂对块体规模具有明显的控制作用.以已知矿床勘探深度1 000 m为准则,计算了块体和异常区的铅矿产资源量以及全区铅矿产资源总量,得出全区铅矿产预测资源量为1 893.53 万t.划分出9个铅矿产成矿远景区,其中具有成矿前景的一级远景区3个,分别是子块体1113-1号、1411-1号、3111-1号.
이적봉북부지구적Pb 1/20만화탐소묘자료위기출,응용지구화학괴체이론여방법,대연구구내Pb적지구화학괴체특정급연광산자원특정진행료계통연구.학정료2개규모불등적Pb지구화학괴체,6개규모상대교소적Pb지구화학이상구.분석료함광Pb지구화학괴체적공제인소:연산기중산성침입잡암적접촉대혹접촉외대시괴체산출적유리부위;이첩계황강량조、대석채조급주라계마니토조、신민조화지류계상통행수와조등위주요괴체부존층위;북서향、북동향단렬대괴체규모구유명현적공제작용.이이지광상감탐심도1 000 m위준칙,계산료괴체화이상구적연광산자원량이급전구연광산자원총량,득출전구연광산예측자원량위1 893.53 만t.화분출9개연광산성광원경구,기중구유성광전경적일급원경구3개,분별시자괴체1113-1호、1411-1호、3111-1호.
Based on 1/200 000 geochemical exploration data of northern Chifeng area and the theory of geochemical blocks,the authors have studied the characteristics of Pb geochemical block and Pb mineral resources, and identified two Pb geochemical blocks and six relatively small geochemical anomaly areas. Through analyzing the controlling factors of Pb geochemical blocks, the authors suggest that the contacting zone or outer contacting zone of Yanshanian intermediate-felsic intrusive rocks are the favorable locations for the blocks, and the Permian Huanggangliang and Dashizhai Formation, Jurassic Manitu and Xinmin Formation, and Upper Silurian Xingshuwa Formation are considered as the main strata for those blocks. The size of blocks is obviously controlled by NW-and NE-striking faults. By taking 1 000 m as the criterion, the total predicted mineral resource of Pb is 18.935 3 million tons in the study area. The study area was subdivided into nine Pb prospect areas, and three of them (No.1113-1, No.1411-1 and No.3111-1) are first-order areas.