The world diamond mineral resources not rich, 1996 world proved reserves of 19 million diamond based ct, far cannot satisfy the gems and industrial consumption needs. Since the 1960s synthetic diamond technical rise, to the 1990s, ever-improving synthetic diamond has almost completely replace the industry, its dosage with natural diamond industrial use of the world's more than 90% (diamond consumption in China has reached more than 99 percent). Diamond main producer for Australia, Russia, South Africa, Botswana and Zaire, etc. The distribution of world diamond mainly by dean byrs central sales organization control.
China finds diamond about in 200 ~ 300 years ago, in the Ming and qing dynasties at about 17 century (toward), hunan province in farmers in Amoy to hold river sands of diamond. The geological exploration work of diamond began in the 1950s. So far, the weight of the found in China higher than 90 ct famous diamond have 6 star, such as weighing about 158 ct "ChangLin diamond", etc.
Human understanding and development of diamond with a long history. As early as the 3rd century ago, Indian men discovered diamond placers, at about 130 A.D. to the 18th century found "light of mountain", "Chinese fir Sue," "big mo lie er", "hope" and so on name drill. A.D. in 1726, Brazil found bed, the world diamond placers diamond production center gradually from India to move to Brazil. 1866 was South Africa found diamond placers, in 1867 and discovered that contain diamond kimberley rock type primary deposit, this is diamond mining development milestone, the world diamond production center and moved to South Africa by Brazil. The 20th century, Botswana, Zaire, Russia before diamond deposits discovered in Australia. Production centre also constantly changes from South Africa, moved to Zaire, and moved to Botswana and Australia, etc. So far the world has found more than 500ct diamond original rock star, about 40 found in South Africa, especially in the most in 1905, Aaron will save in South Africa at listed mill kimberley rock tube found in the weighs three 106 ct, called "molid south" diamond, known as the "biggest diamond," king of processed into 12 diamond, the largest a single heavy 530.2 ct, called "the African star" set in king scepter.
China diamond mineral resources, through comparing poor nearly 50 years, the geological work only in liaoning, shandong, hunan and jiangsu provinces it has four reserves. By the end of 1996, China retain diamond reserves 2 089.78 million ct, in which occupies an important position in the world. On quality, in China's liaoning province of diamond fine texture, gem grade diamond production accounts for about 70% of the total. Since the 1990s, China's annual diamond about 10 ~ 15 million ct, far cannot satisfy the domestic consumption needs. Countries with diamond 99% needed for industry rely on domestic artificial diamond, in 1997, China man-made diamond production of 4.4 billion ct, natural diamonds used in industry accounts for consumption ratio is extremely limited.
Currently, the production of diamond countries nearly 20, the main production state-owned Australia, Botswana, Zaire, South Africa, Russia and Brazil.
China planned to carry out the geological exploration work of diamond began in nineteen fifty-two. The 1950s exploration emphasis for diamond placers. 1952 to 1953 geological department sends experts and composition of shandong ShuHe census team to reconnoiter and processing areas, 1953 census geological department YuanShui established hunan geological team veteran (413 team name) in after YuanShui basin of hunan census exploration work of diamond placers, to 1967 in changde proven the 4 diamond placers. In 1957 ShuHe formed geological department of shandong processing after 2008 geological team veteran (name of eight nine teams) ShuHe basin and shandong processing jiaodong area for diamond census exploration, successively in spring, Chen proven the five diamond placers ports such as bed. Through the first national diamond in 1964 in professional geological meeting mobilization of diamond original mineral prospecting, census in 1965, guizhou geological survey in guizhou, a far east town of the discovery of diamond kimberley dike; In August 2008 shandong geological survey in eight MengYin often MaZhuang nine teams have found that Chinese the first industrial value kimberley rock type diamond native deposits -- "red flag 1", after several years of more than 60 discoveries to 1977, kimberley rock proven often MaZhuang, king village, west valley, head village and red xi zhuang five have industrial value of the diamond native deposits; 1971 June liaoning geological survey in liaoning district adjustable team found the complex county containing diamond kimberley rock tube, 1980 proved up the 30th, 42 number, 50 number, 57 number, 68 74 number six, and with industrial value diamond native ore deposits. Liaoning, shandong, hunan province of original deposit and placers diamond basic research, discovery and exploration of mineral resources of diamond the current China the pattern. Subsequent since 1988, the geological sampling has been insisting vigorously developing the diamond prospecting, and with Britain, Australia, Belgium, Canada and other countries of the mining company or experts joint ventures or cooperative, in hunan, shandong, guizhou and guangxi, jiangsu, hubei, jiangxi, shanxi, sichuan, xinjiang and Tibet extensively work, making progress.
China diamond mining also began in the 1950s, 1957 state planning commission determined YuanShui established by geological team veteran responsible in hunan province, changde building China's first diamond placers. August 1958, began construction of hunan province TaoYuanXian vips living changde car creek, when rush ore, fill a 428ct production diamond don't produce natural diamond Chinese blank. 1958 diamond mines engineering management, will allot architecture for a mining area expanded four mining areas, 1959 renamed consortium, a mineral, six basic stability after the 1974 production in August 000ct above. Shandong TanChengXian GongYeJu by TanCheng diamond placers established in 1958, 1959, 1962 247ct of diamond was renamed consortium, three ore, eight were completed and put into operation in 1968, the size of the annual output of 3 000ct diamond. 1967 geological department, building materials industry organization for MengYin native diamond mines in shandong province on dressing experiment. Then building materials industry, established seven mine exploitation, SongGuZhuang red flag of China's no.1 ore mining first original mineral, 1970 put into production, and size of the annual output of diamond 2 million ct, 1978 WangGuCun mining area as China's first an annual output of 100,000 ct original diamond mines are put into operation. In 1980, liaoning province departmental form coastal diamond mine geological team veteran 6 production wafangdian (after county, 50, rock tube) in 1981, 1985 773ct production diamond 8, 1987 240ct production by 12 bureau of geology and mineral resources, liaoning province of liaoning province, wafangdian city and shenyang non-ferrous metals company incorporation wafangdian diamond Co., LTD opencast into formal. 40 years, the above 4 diamond mines for China development diamond production made an important contribution. China produces diamond about 10 ~ 15 million ct.
According to records, 90ct China discovered weight more than six diamond are found in shandong province. The first planet that is TanCheng farmers in 1937 218.65 ct, LuoZhenBang found heavy named as "the star jinji gem", this is the biggest ever found in China, but after diamond grains carried away; the Japanese invaders The second star in 1977 LinShuXian ChangLin WeiZhenFang found that by 158.786 ct, named "heavy ChangLin diamond"; Third man-made in 1981 in shandong, TanCheng "eight three" produced, heavy 124.27 ct ore, named "Chen port 1"; The fourth star, "eight in three" ore recovery, heavy 96.94 ct, named "Chen port 2"; A fifth in "eight in 1983, produced three" ore, heavy 92.86 ct, named "Chen port 3"; Sixth star in "seven in 1983, crushing a" ore minerals found, heavy 119.01 ct, named "mengshan 1". In addition, the heavy 10 ~ 50 ct big diamond found very much to enumerate.
没有评论:
发表评论