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在毛主席革命路线指引下,我队于一九七四年在白银地区开展了1∶5万区域地质调查工作。在工作中除地质、物探、化探、坑探、钻探等多兵种联合作战外,我们在认真总结已往1∶20万区域地质测量工作中应用航空地质方法经验教训的基础上,特别注重了航空地质方法的充分利用。三年来的生产实践,使我们深刻地体会到火山岩分布区航空地质方法是开展大比例尺地质调查工作的良好手段和重要工具。大力发展航空地质对加速区域地质调查、提高工作效率,皆能收到事半功倍的效益,是符合多快好省的原则的。白银地区广布的火山岩为一套海底喷发的富含钠质的细碧角斑岩系。该岩系地层构
Guided by Chairman Mao’s revolutionary line, our team carried out a 1: 50000 regional geological survey in the Silver Area in 1974. In addition to the joint operations of geology, geophysical prospecting, geochemical exploration, pit exploration and drilling, and many other arms operations, on the basis of earnestly summarizing the experiences and lessons from the application of aeronautical geological methods in the past 1: 200,000 regional geological survey work, we paid special attention to aviation The full use of geological methods. Three years of production practice have enabled us to profoundly understand that the method of aviation geology in the distribution area of volcanic rocks is a good tool and an important tool for carrying out large-scale geological survey. Vigorously develop aeronautical geology Accelerate the regional geological survey, improve work efficiency, are able to receive a multiplier effect, is in line with the principle of more speed and better. The widely distributed volcanic rocks in the silver area are a series of sodium-rich penicillin porphyry erupted at the seafloor. The rock strata structure