(1) Overview
The mining area is 10.58 square kilometers. The mining area is located 33 kilometers southwest of Ledong County, Hainan Province. The provincial highway Mao (Yang) Jiu (Suo) Highway passes through the mining area and is about 100 kilometers away from Sanya. The transportation is very convenient. The mining area has a tropical maritime monsoon climate, and the residents are a mixture of Li and Han residents.
From March 2006 to October 2011, the Hainan Provincial Comprehensive Geological Survey Institute carried out exploration work. The type of mineral being explored was lead-zinc ore, and the level of work was detailed investigation. The exploration funds were approximately 21 million yuan.
(2) Description of results
The "Detailed Investigation Report of Houwanling Molybdenum Lead and Zinc Mining Area, Ledong County, Hainan Province" submitted for this detailed investigation has been approved by the Hainan Provincial Land, Environment and Resources The expert review organized by the department is preparing for the filing. ***The total amount of lead and zinc ores of various types discovered was 17.2394 million tons, and the metal amount was: 79,944 tons of lead, 239,977 tons of zinc, and 319,921 tons of lead + zinc. Among them, the proven economic basic reserves (121b) ore amount is 865,600 tons, accounting for 5.02% of the total ore amount. The metal amount: lead 3836 tons, zinc 15940 tons, lead + zinc 19776 tons, accounting for lead, zinc, and lead respectively. + 4.80%, 6.64%, 6.18% of the zinc metal amount; the controlled economic basic reserves (122b) ore amount is 5.7651 million tons, accounting for 33.44% of the total ore amount, the metal amount: lead 30,292 tons, zinc 114,456 tons, lead + Zinc is 144,748 tons, accounting for 37.89%, 47.69%, and 45.24% of the amount of lead, zinc, and lead + zinc metals respectively; the inferred amount of inherent economic resources (333) ore is 4.3652 million tons, accounting for 25.32% of the total ore. Metal content: 34,286 tons of lead, 82,739 tons of zinc, and 117,027 tons of lead + zinc, accounting for 42.89%, 34.48%, and 36.58% of the metal content of lead, zinc, and lead + zinc respectively; proven sub-marginal economic resources (2S21) ore The amount is 372,000 tons, accounting for 2.16% of the total ore amount. The metal amount is: 520 tons of lead, 1808 tons of zinc, and 2328 tons of lead + zinc, accounting for 0.65%, 0.75%, and 0.73 of the metal amounts of lead, zinc, and lead + zinc respectively. %; the controlled sub-marginal economic resources (2S22) ore volume is 5.8715 million tons, accounting for 34.06% of the total ore volume, and the metal volume: lead 11,010 tons, zinc 25,034 tons, lead + zinc 36,042 tons, accounting for lead, zinc, 13.77%, 10.43%, and 11.27% of lead + zinc metal content. The average ore grade in the entire mining area is: lead 0.46%, zinc 1.39%. The ore volume of the V1 main ore body accounts for 50.53% of the entire mining area, and the lead and zinc metal volume accounts for 53.16% of the entire area. In addition, the amount of associated copper metal was found to be 8,552 tons, with an average grade of 0.25%; the amount of associated silver metal was 121,757 kilograms, with an average grade of 11.07×10-6. The deposit reaches medium size. The genetic type of the deposit is a medium-low temperature hydrothermal fluid-filled metasomatic lead-zinc deposit controlled by fault structures.
Section of line 204 in the Huaguoshan section of Baiyundi Mining Area, Heshan City
1—Quaternary; 2—Yanshan period medium coarse-grained granite; 3—Fault fracture zone; 4—Mineral body; 5-mineralized body; 6-drilling and numbering; 7-trenching and numbering
(3) Brief process of obtaining results
***Invest in main physical work Amount: 1:10000, 1:5000, 1:2000 geological survey 2, 3, 1 square kilometers each; hydraulic environmental survey 11 square kilometers each, one hydrological borehole 229 meters; array electromagnetic geophysical survey 3,000 meters, 198 controllable source points; 35 construction trenches, totaling 5,541 cubic meters; 89 exploration boreholes, with a total footage of 19,522 meters; 2,965 rock ore sampling and basic chemical analyses; 3 1:2000 topographic map measurements Square kilometers, 20 kilometers of 1:1000 profile measurement, 195 engineering point measurements; 1 mineral processing test sample.