DOI:
矿床地质:2004,Vol.>>Issue(Z):143-152

中国沉积成矿/成藏基本事实和系列类型
长安大学成矿作用动力学国土资源部开放研究实验室
Essentials of Sedimentary Mineral Resources and Series Types in China
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中文摘要:沉积盆地因巨大的成矿/成藏潜力而倍受关注,在不同时代的盆地中寻找矿产资源已成为趋势,综合研究中国沉积环境和沉积成矿/成藏基本事实十分必要。中元古代中国沉积环境主体是古陆裂陷/裂谷海盆,新元古代和古生代出现稳定陆缘海和陆内海,三叠纪及以后沉积环境主体成为陆相。中-新元古代和古生代沉积矿床/矿藏主要与华北、扬子等中-新元古代以来逐步稳定起来的古地台相联系,中-新生代沉积矿床/矿藏主要发育在印支期形成的统一中国大陆上的遍布全国各地的断陷、拗陷、前陆盆地中。沉积成矿/成藏系列类型出现6种:机械沉积砂矿床系列类型、蒸发沉积盐类矿床系列类型、生物有机沉积矿藏系列类型、砂岩/黑色页岩中多元素矿床系列类型、胶体化学/生物化学沉积矿床系列类型、陆缘裂陷/陆内拗陷盆热水沉积矿床系列类型。随地质演化,中国沉积成矿/成藏环境越来越重要且趋于多样,沉积成矿/成藏作用呈现递进发展,矿石/藏建造从以金属为主演变为以油气、金属、非金属并存,古生代和中生代出现沉积成矿/成藏高峰。沉积盆地中固体-液体、无机-有机矿床/矿藏共存现象普遍,多种矿床/矿藏同盆共存的地球动力学背景和形成机制是值得重视的重大科学问题。
Abstract:Much importance has been attached to the sedimentary basin for its great potentiality of mineral resources, and the survey of mineral resources in a basin of various periods has evidently become a tendency. It is necessary to study the essentials of sedimentary environments and sedimentary mineral resources in China. The evident sedimentary environment began appearing in Middle Proterozoic in China. The sedimentary ore-/oil-gas-forming environment has become increasingly important as the geological evolutions tend to show diversity. The environment was mainly the fault-/rifting-basin of old continental margin or interior in Middle Proterozoic, the stable margin- and interior-sea of continents during Upper Proterozoic and Palaeozoic, and the continental environment in Triassic and the later periods. The sedimentary mineral resources of Upper Proterozoic and Palaeozoic are closely related to the old North China and Yangtze platforms which became stable since Middle-Upper Proterozoic, and the sedimentary mineral resources of Mesozoic-Cenozoic mainly occur in fault-, depression- and foreland-basins in the whole Chinese continent formed in Indo-Chinese epoch.There are 6 series types of sedimentary mineral deposits/oil-gas accumulations in China, i.e., mechanical sedimentary placer deposit series type, evaporation sedimentary deposit series type, organic sedimentary mineral accumulation series type, multi-element deposit series type in sandstone/black shale, colloid-/organic-chemical sedimentary deposit series type, and hydrothermal sedimentary deposit series type in marginal fault-/continent depression-basin. The sedimentary ore-formation/oil-formation became stronger and stronger with the geological evolution, the ore formation changed from the metallic domination into the coexistence of oil-gas-metal-nonmetallic resources, and the strongest ore-forming/oil-forming process occurred in Paleozoic and Mesozoic. The coexistence of solid-liquid and inorganic-organic mineral resources is generally in the sedimentary basin. The geodynamic background and formation dynamics for the coexistence of multi-mineral resources in the same basin constitutes a key scientific problem worthy of further detailed studies.
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基金项目:中国成矿体系与区域成矿评价项目(中国地质调查局编号:K1.4)和国家重点基础研究计划(973)项目(科技部编号:2003CB214606)
引用文本:
薛春纪,陈毓川,高景刚,刘淑文,梁婷.2004.中国沉积成矿/成藏基本事实和系列类型[J].矿床地质,23(Z):143~152
.2004.Essentials of Sedimentary Mineral Resources and Series Types in China[J].Mineral Deposits23(Z):143~152
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