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现有的矿产资源分布资料可以说明地球历史中亲铁和亲铜元素成矿的一般规律。铁矿床在元古宙地核分离之后最为发育。除个别显著成矿高峰外 ,金的储量分布与铁类似。亲铁元素矿物的成矿潜力在古元古代也最大 ,以后逐渐降低 ,只是在显生宙 ,因地壳的再循环和古老矿床中矿石物质的活化而再次增大。元素的行为则完全不同 ,在前寒武纪时期它们的活动性为中等。亲铜矿物矿床的总量 ,在显生宙因再循环而达到最高 ,亲铜矿物矿床成矿能力较之亲铁矿物强得多 ,因为硫化物比铁金属氧化物更为活泼。地球演化的旋回性表现为超大陆形成的周期性 ,它与矿产的分布颇为一致。铁矿、亲铁元素和金成矿作用的突然激增 ,显然是在超大陆形成之后 ,并且与其早期裂解的脉动相对应。亲铜元素堆积的高峰期往往与超大陆的形成期相对应。尽管亲铜元素成矿的第三次脉动与中生代古陆 (Mesogea)的形成并不一致 ,但却与劳亚古陆及冈瓦纳古陆的裂解相一致。此种成矿堆积现象可以借助地幔内非稳态化学密度对流所诱发的地壳发展周期性来解释。根据超大陆形成的周期性推断地幔对流巨旋回的主期应为 80 0Ma ,此种周期性亦反映了具原始地幔印记的亲铁、金和亲铜元素的聚集作用过程。因此 ,地球圈层中地幔对流作用的周期性亦显著地控制了包括地幔
The existing mineral resources distribution information can illustrate the general rule of iron mineralization and pro-copper mineralization in the history of the earth. Iron deposits in the Proterozoic after the most developed nuclei. Except for a few significant metallogenic peaks, gold reserves are similar to those of iron. The mineralization potential of the pro-iron elemental minerals was also the largest in the Paleoproterozoic and later gradually decreased, only increasing again in the Phanerozoic due to the recirculation of the crust and the activation of ore substances in ancient deposits. The elements behave completely differently, with moderate activity during the Precambrian period. The total amount of the pro-copper mineral deposits reached the highest in the Phanerozoic due to recirculation, and the mineralization capacity of the pro-copper mineral deposits is much stronger than that of the iron-bearing minerals because the sulfides are more lively than the iron metal oxides. The cyclonic nature of the Earth’s evolution is characterized by the formation of the supercontinent cycle, it is quite consistent with the distribution of minerals. The sudden surge in iron ore, pro-iron, and gold mineralization apparently occurred after the formation of the supercontinent and corresponded to the pulsation of its earlier cleavage. The peak of pro-copper accumulation tends to correspond with the formation of the supercontinent. Although the third pulsation of pro-copper elemental mineralization is inconsistent with the formation of the Mesogea Mesogea, it is consistent with the cracking of the Laurasian and Gondwanaland. This mineralization accumulation can be explained by the cyclical crustal development induced by unsteady chemical density in the mantle. According to the periodic formation of the supercontinent, the main period of mantle convection giant gyration should be 80 0Ma. This periodicity also reflects the aggregation process of pro-iron, gold and copper-rich elements with original mantle imprints. Therefore, the periodicity of the mantle convection in the earthosphere also significantly controls the mantle