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今年5月7日到6月7日,我们到澳大利亚、巴布亚新几内亚考察了C.R.A.总公司所属的一些金属矿山的地质勘探和矿山地质工作,对他们的一些矿床地质特征、普查勘探方法以及地质工作管理等方而的情况,留下了较深的印象.掌握成矿特征,寻找同类型矿床澳大利亚是一个金属矿产资源丰富的国家,铁、铜、铅、锌等矿床具有规模大、含量高的特点,其成矿特征值得我们借鉴.1.关于富铁矿的形成条件世界上著名的哈默斯利铁矿位于澳大利亚西北部的皮尔巴拉地区.含铁沉积盆地东西长500公里,南北宽50到200公里,整个面积78000平方公里,初步探明铁矿石储量约在300亿吨以上,很多矿点尚未进行地质勘探工作.该区在太古代花岗岩、混合岩和变质岩的基底上
From May 7 to June 7 this year, we visited Australia and Papua New Guinea and inspected the geological prospecting and mine geology work of some metal mines owned by CRA Corporation. We conducted a survey on the geological features of some of the deposits, the census exploration methods, and the geological work Management and other conditions, leaving a deep impression.Metal mineralization characteristics, looking for the same type of depositAustralia is a country rich in metal mineral resources, iron, copper, lead, zinc and other deposits of large-scale, high Characteristics, and its metallogenic features deserve our reference.1.Forming conditions of iron ore rich in the world The world famous Hamersley iron ore is located in the Pilbara region of northwestern Australia.The iron-bearing sedimentary basin is 500 km long and north-south 50 to 200 km, the entire area of 78,000 square kilometers, the initial proven iron ore reserves of about 30 billion tons more than a lot of ore has not yet carried out geological exploration work in the area on the Archean granite, mixed rocks and metamorphic rocks on the substrate