The exploration area is located in Qixia Town, the eastern suburb of Nanjing City, Jiangsu Province, with an exploration area of 0.9808 square kilometers. The northern part of the exploration area is 0/.5 km away from the Yangtze River/KLOC-0, and the Shanghai-Nanjing high-speed railway, Qixia Avenue and Ningzhen Highway pass through the southern part of the mining area, so the traffic is very convenient.
From March 20 12 to June 20 13, Jiangsu Huadong Basic Geological Exploration Co., Ltd. carried out exploration work, and the exploration mineral was lead-zinc mine. The degree of detailed investigation. The investment unit is Nanjing Yinmao Lead-zinc Mine Co., Ltd., and the exploration fund is 3.27 million yuan.
(2) Brief introduction of achievements
The deposit belongs to low-temperature hydrothermal deposit. The main minerals are galena, sphalerite and pyrite. At present, the mining section is Huzhao mountain section, the main mining varieties are lead, zinc and sulfur, and the mining capacity is 350,000 tons/year. The middle sections of -525m and -575m are mainly mining middle sections, and -625m is exploration middle sections. The ore body is mainly controlled by F2 longitudinal fault, and belongs to medium-low temperature hydrothermal deposit. The main ore body is located between the lines 12 ~ 54, with the strike length of 1 100 m and the strike direction of 45 ~ 58 northeast. Inclined to the northwest, with an inclination angle of 60 ~ 90, with gentle shallow part and steep deep part. It is inclined to the southwest, with a lateral dip angle of about 42, a dip angle of about 250 ~ 1000m, a buried depth of about 250m at the shallowest line 12 and a buried depth of about 1000m at the deepest line 46. The ore types are mainly lead-zinc-sulfur type and monosulfide type, with lead-zinc-sulfur type as the main type.
* * * Detected 273,200 tons of metallic lead and 428,900 tons of metallic zinc; In which (11b) type lead metal is 265,438+ten thousand tons and zinc metal is 36,700 tons; (122b) lead metal content is 14 13000 tons, and zinc metal content is 225400 tons; Formula (332) contains metallic lead of 6,543.8+0.02 million tons and metallic zinc of 6,543.8+0.69 million tons; Formula (333) contains metallic lead/kloc-0.07 million tons and metallic zinc/kloc-0.4995 million tons; The amount of (333) type manganese is 73,400 tons.
(3) the brief process of achievement
From March 20 12 to June 20 13, Jiangsu Huadong Basic Geological Exploration Co., Ltd. carried out exploration work. Exploration is divided into mine exploration and mine drilling. The project is all arranged in the middle section of -625m, with 390m exploration pit and drilling 1627m, and the corresponding hydrogeological logging and sampling are completed.