一、环太平洋海域的铁矿床 多年来,在整个环太平洋海域(Pacific Basin)所进行的矿产调查工作中,人们以越来越大的兴趣记载了该海域与大西洋海域及印度洋海域的铁矿之间的差异。在后两大海域内,巨大的稳定大陆地盾的基底是前寒武沉积铁英岩和铁燧岩以及地质年代较轻的 THE IRON DEPOSITS IN THE PACIFIC PACIFIC ORE In the course of mineral investigations conducted throughout the Pacific Basin over the years, there has been an increasing interest in documenting iron ore mines in the area and the Atlantic and Indian Oceans difference between. In the latter two sea areas, the base of the huge stable continental shield is Precambrian sedimentary iron-bearing rocks and taconite, and the geologic age is lighter