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本文对云南红河以东的地区从地球物理场(主要是重力、磁力)的特征出发,讨论了深部构造和它与内生金属矿床的关系,提出了一些看法。 1.区内深断裂有东西向、南北向、北东向和北西向四组,除地质上原判定的外,新提出东西向的新平——通海、楚雄——昆朋、金沙江;南北向的永仁——姚安、昭通——曲靖和北东向的牛栏江等六条隐伏深断裂。 2.对大地构造单元的边界提出新认识,即川滇台背斜的东界大致在曲靖到四川的马边一线。师宗——弥勒断裂应为杨子准地台与华南褶皱区在云南境内的分界线。 3.计算了区内莫霍面的深度,发现区内内生金属矿产分布与地壳结构有一定关系。滇东地区上地壳厚度大于下地壳,矿产主要是铅、锌;滇中地区则相反,以铁、铜为主。鹤庆——弥渡的铅锌、铜钼、铂钯矿,会理——永仁的钒钛磁铁矿、铜矿及铂钯矿,东川的铜矿以及个旧——文山的锡、钨、铅、锌、锑等矿产,看来皆产于莫霍面隆起或拗陷的变化带。
Based on the characteristics of geophysical fields (mainly gravity and magnetism), the area east of Honghe in Yunnan Province is discussed. The relationship between deep structure and its relationship to endogenic metallogenic deposits is discussed and some opinions are put forward. 1. There are four sets of deep faults in east, north, south, north east and north west. Except for the original geology, Xinping - Tonghai, Chuxiong - Kunpeng, Jinshajiang; Of Yongren - Yao An, Zhaotong - Qujing and the northeast of the Ngau Hom River and other six hidden deep fault. 2. A new understanding of the boundary of tectonic units is proposed, that is, the eastern boundary of the Sichuan-Diantai anticline is roughly on the first line of the horse from Qujing to Sichuan. The Shizong-Maitreya fault should be the dividing line between Yangzi quasi-platform and South China fold area in Yunnan Province. Calculated the depth of the Moho in the area, and found that the distribution of endogenous metallogenic minerals has a certain relationship with the crustal structure. The thickness of the upper crust in eastern Yunnan is greater than that of the lower crust. The minerals are mainly lead and zinc; in central Yunnan, the iron and copper are the main ones. Heqing - Lead, Zinc, Copper and Molybdenum, Platinum and Palladium Deposits in Midu, Vanadium and Titanium Magnets in Huiren-Yongren, Copper and Platinum and Palladium Deposits, Copper Mine in Dongchuan and Gejiu-Wenshan Tin, Tungsten, lead, zinc, antimony and other minerals, it seems, are produced in Moho uplift or depression change zone.