辽宁西部地区铁矿类型及勘查开发方向探讨

Discussion on the Iron Ore Typies and Exploration in the Western Liaoning Province

辽宁境内下辽河凹陷以西地区,是晋冀铁矿集中区的东延部分,铁矿资源丰富。根据铁矿成矿地质条件、成矿时代及演化特点,结合近几年勘查开发工作的新进展,认为该地区铁矿床的类型有沉积变质型、沉积型、岩浆型、矽卡岩型和热液型。在寒武纪页岩之下有可能寻找到沉积型铁矿床。在辽西与河北大庙之间的华北地台北缘隆起区,岩浆型铁矿具有较大的找矿潜力,重点靶区为北票松台沟地区,朝阳崔家店地区,建平深井-青风山地区。而沉积变质型铁矿在北票宝国-牛虎头沟,朝阳老西沟,建平大南沟-锅底山、卧龙岗,凌源黑沟等地区的建平岩群中应具有找矿潜力。

The region to the west of Liaohe Depression in Liaoning Province is the eastern extension of the Shanxi-Hebei iron ore concentrating district and rich in iron ore resources. Based on the ore-forming geological conditions, ore-forming era, the evolving characters and the exploration result resent years, it is suggested that the iron ore types are mainly metamorphic sedimentary deposits （BIF）, sedimentary deposits, magmatic ore, skarn ore and hydrothermal ore deposits. The direction of next prospeting is provided also. There may be new iron ore of sedimentary type beneath the precambrian shale. The prospecting aim area of magrnatic ore in northern margin of North China Block between western part of Llaoning Province and Damiao, Hebei Province are Songtaigou in Beipiao, Cuijiadian in Chaoyang and Shenjing-qingfengshan in Jianping. And BIF type of iron ore should prospect in the Jianping Rock Groop in Baoguo-Niutougou in Beipiao, Laoxigou in Chaoyang, Danangou-Guodishan and Wolonggang in Jiangping,and Heigou in Lingyuan ect.