In 10 years, four gold mines with reserves exceeding 100 tons were discovered. Exploring Yantai's key to unlocking underground gold mines.
Drilling construction of drilling platform for shallow sea solid mineral exploration.
The construction site of the first deep drilling rig of 4,000 meters in China Rock Gold Exploration.
470 tons of "Golden Mountain under the Sea" was discovered in Yantai! 4 super-large gold deposits of more than 100 tons appeared in Yantai! Three thousand-ton gold fields are in Yantai!
In the past 10 years, the news of the new gold mines and the discovery of gold mines in Yantai has been constantly shocking the whole country: the cumulative amount of newly added gold metal is 2,596.29 tons, which exceeds the total amount of gold resources identified in the 61 years since the founding of our province!
Why did Yantai become a world-class "big golden vein"? How was the buried gold mine found? How did the prospectors get the key to open the underground gold mine? YMG reporters explored the Natural Resources and Planning Bureau of Yantai City, and heard about the "past and present" of Yantai's 10-year gold exploration and mining.
Shocked, three thousand-ton gold fields are in Yantai
The new discovery of 470 tons of "Golden Mountain under the Sea" in Laizhou caused a national sensation. In 2016, 328 tons were explored in the Shaling mining area in Laizhou! At the beginning of 2017, the Xiling gold deposit in Sanshandao mining area in Laizhou was 382.58 tons. This world-class giant single gold deposit once again attracted national attention.
Xie Defu, deputy director of Yantai Municipal Bureau of Natural Resources and Planning, said: Up to now, Yantai has discovered four super-large gold deposits with reserves of more than 100 tons in the northern waters of Sanshan Island and Laizhou Shaling. Among them, the northern part of Sanshan Island in Laizhou City Haiyu Gold Mine (470.47 tons), Laizhou Xiling Gold Mine (382.58 tons), Laizhou Shaling Gold Mine (309.93 tons), Zhaoyuan City Shuiwangzhuang Gold Mine (170.54 tons) !
"The Laizhou and Zhaoyuan areas are indeed too shocking. The Laizhou Zhaoyuan area has thus become a leading place in the country and rare in the world for large-scale gold deposits." said Wang Peng, head of the Geological Prospecting Division of the Municipal Bureau of Natural Resources and Planning. In particular, the three thousand-ton gold fields in Sanshan Island, Jiaojia and Linglong made the Jiaodong area the third largest gold mining area in the world. This historic breakthrough was awarded as the most influential in Shandong Province celebrating the 40th anniversary of reform and opening up. Event nominated!
Gold mines, in Yantai, talk about "beds" and "fields": gold deposits refer to individual gold deposits, and gold deposits are formed by the combination of several gold deposits in the same metallogenic zone.
In the past 10 years, Yantai has invested a total of 4.45 billion yuan, completed 3.92 million meters of drilling, 110,000 meters of pit exploration, and exploration of 46 gold deposits of medium-sized and above. The prospecting results of Yantai alone exceeded the national prospecting target for 2011-2020.
Records found in the seabed of exploration holes to fill the gap in China
The vast sea area has given mankind a rich imagination, and at the same time, it also contains huge treasures. However, because it is buried thousands of meters deep in the seabed, how to find minerals has also become a technical problem for mankind to discover the treasure house of the seabed.
"Where to find and how to find gold deposits in the sea, I have not been able to solve the problem. The main reasons are these aspects: one is because of the vast sea and seabed sediments, the distribution position of the deposits on the sea cannot be judged; in addition, all ore bodies are Existing in the coastal waters, the construction conditions are very complicated, and the use of traditional exploration methods is greatly restricted. There is no advanced experience in China to learn from, and prospecting and prospecting are extremely difficult." Wang Peng said frankly, how many meters can be drilled underground is also The biggest key point in offshore prospecting.
Only with diamonds can we do porcelain work. The Third Institute of Geology and Mineral Exploration of Shandong Province independently designed and developed a shallow sea solid mineral exploration drilling platform, which expanded the exploration work from land to sea. my country’s first offshore gold exploration project deployed 44 drilling holes in 17 square kilometers of Sanshan Island in Laizhou. Holes see mines, the deepest hole depth is 1973.46 meters, which has achieved a major breakthrough in offshore prospecting.
The platform overcomes the influence of waves, sea breeze, current and other factors, solves a series of key technical problems such as the installation and positioning of offshore gold prospecting platforms, and the positioning of drilling holes. It fills the gaps in gold prospecting in domestic seas and creates a huge economy Benefits and social benefits.
The reporter learned that the final hole depth of the “China Rock Gold Exploration First Deep Drill”, which dared to challenge “ultra-deep, ultra-large, and ultra-difficult”, was 4006.17 meters deep, setting the deepest record of small-diameter core drilling in my country and filling the deep part of my country. There is a gap in the study of gold prospecting and mineralization laws. A batch of patented achievements such as ultra-deep drilling technology and offshore drilling platforms have matured the seabed "perspective eye" technology and enriched prospecting results.
The magical "touching the golden school lieutenant" has eyes on the mine target area
"Mo Jin Xiaowei" made the tomb-exploring film and television movie smash hit. Geological prospecting personnel can also be called the "Golden Lieutenant" of prospecting and mining.
So, how was the gold mine found? Where are gold mines located in Yantai? What is the shape of the gold ore body buried deep underground? The unfolded geological profile for exploration completely overwhelmed the reporter's impression-the shape of the mineral is a rock section, which is like a "bamboo shoot", in vivid terms, it is buried under the ground like a "door panel".
In fact, the gold mine is usually a flat fracture zone that grows diagonally or straight under the ground. There is usually a "root" at the bottom.
"The ability to find mines is the result of the significant improvement of our geological personnel's theoretical research capabilities. You see, in the past ten years, our city has carried out 22 major geological science and technology research projects, with a total investment of 155,554,300 yuan. Mature, it’s like people have more experience, and prospecting is easier.” According to Wang Peng, geologists have created the Jiaodong-type gold mine "Relong-Extension" based on research and summary of past prospecting experience. "Mineralization theory, "Dynamic mineralization theory" and "Step-type mineralization model" theories provide theoretical guidance and exploration models for deep prospecting in Jiaodong, and overcome the worldwide problem of key theoretical technology for deep gold prospecting in Jiaodong , Broadens the prospecting space, summarizes the structure space distribution law, the ore-controlling law, and the gold ore body is enriched in sections along the structural belt, approximately equidistantly distributed, symmetrically distributed in the horizontal and vertical directions, and the north-east side of the output law , Boldly predicted the prospecting target area.
"Ore prospecting cannot be aimless, it is easy to do with the target area. We carried out drilling verification, controlled offshore ore-controlling faults and discovered super-large gold deposits." Wang Peng said, this discovery is important to the metallogenic belt of Sanshan Island The prospecting of gold deposits in the northeast coast and shallow sea areas and even the prospecting of gold deposits in the northwestern Jiaozhou area are of great significance.
Goal Yantai becomes a 10,000-ton gold industrial base
"Implementing a breakthrough strategic action for prospecting is a major measure to ensure the orderly and high-quality development of China's economy and improve the ability of mineral resources." Comrade Huang Tao, director of the Bureau of Natural Resources and Planning of Yantai City, said that in the past ten years, the Yantai Municipal Party Committee and the Municipal Government have attached great importance Geological prospecting work, with the strong support of the Provincial Department of Natural Resources, Yantai Natural Resources and Planning Bureau coordinated the exploration and development of mineral resources and ecological environmental protection, promoted green prospecting, innovated prospecting mechanisms, strengthened basic geological surveys, and enhanced key theories With the intensity of technical research, the quality of geological work was ensured, the investment in exploration was increased, and the results of geological prospecting were achieved.
In the next step, we will firmly establish a new development concept, apply modern information technology to accelerate the informatization process of mineral exploration, establish three-dimensional models of key mineralization zones and large-scale ore fields, and guide breakthroughs in deep prospecting, and continue to increase mineral resources on this basis Scientific and technological research on major geological issues in resource exploration, promote independent innovation of mineralization theories, prospecting methods, and key exploration and development technologies, and strengthen the Sanshandao-Cangshang metallogenic belt, Zhaoping metallogenic belt, Mouru metallogenic belt, and Qipeng Fucheng The study of geological problems in the key metallogenic belts of the mining area has focused on building Yantai into a 10,000-ton gold industrial base.