The reserves of China's lead identified resource reserves accounted for only 17.8%, the lead-zinc resource base reserves accounted for 32% of the identified resource reserves, and the zinc reserves identified in China accounted for only 24.1% of the reserves, and the basic reserves accounted for the identification of resource reserves. 42.3%. By strengthening the geological work in the mine, some of the basic reserves can be converted into reserves, so as to increase the assurance of lead and zinc resources. Hexagon Flange Head Drilling Screw With Tapping Screw Thread Hex flange self-drilling screw into sheet metal - with a drill - the advantage is the use without the need for pre-drilling and minimal risk of sheet deformation. Suitable for joining sheets where high joint strength is required. Hexagon Flange Head Drilling Screw With Tapping Screw Thread,Flange Head Self-Tapping Screws,Hex Flange Self Tapping Screws,Flange Head Tapping Screw Taizhou Wanluo Hardware Products Co., Ltd. , https://www.wlhardware.com
The level of lead and zinc exploration in China is relatively low, and deeper work can significantly increase the reserves of lead and zinc resources. Among the identified resource reserves of lead mines, the resource reserves that reached the exploration level accounted for only 28.9% of the total identified resource reserves, which accounted for 41.1% and 30% of the level of detailed investigation and census respectively. Among the identified resource reserves in zinc mines, The resource reserves that reached the exploration level accounted for only 33.2% of the total identified resource reserves, reaching 40.9% and 25.9% of the level of detailed investigation and census respectively.
Strengthening the geological research and prospecting and mining work in the areas surrounding the existing lead-zinc resources deposits can increase the utilization of mineral resources and extend the service life of existing mines. For example, the “Red Dog†lead-zinc-silver deposit in Alaska in the United States has undergone in-depth geological research and detailed exploration on the periphery of the main deposit, and has found the same type of large and rich Aqqaluk deposit and Palayaq. The deposits, and on the periphery, the large-scale, flat lead-zinc-silver ore body, the Anaraaq deposit, formed by another metallogenic system. These discoveries have doubled the mine reserves and greatly extended the service life of mines.
At present, China's annual investment in lead and zinc resources and mineral exploration is about 2 billion yuan, of which about 30% is invested by the state, and the other 70% are commercial investments.
China's use of foreign lead and zinc resources should be based on trade imports and purchase of mine equity as the main method. Imports of lead and zinc resources should be based on long-term trade contracts. At present, the proportion of lead and zinc resources purchased on the spot is relatively large, and there are many constraints. As for the purchase of lead and zinc resource mines, because China has a relatively short opening time and mining companies lack experience in mining operations, it is difficult to make correct choices. As for the risk exploration and development of lead and zinc resources, it is a common method used by economically developed countries. Its advantage is that it has less investment. The disadvantage is that the cycle is generally longer and the risk is greater. Lead-zinc resources investment areas should give preference to countries with rich lead and zinc resources such as Australia, Canada and Peru or neighboring countries such as Mongolia, Kazakhstan, Myanmar, North Korea and Russia.