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本文描述了富燧石的含铁化学沉积岩类型,从古环境的角度对它们形成的岩石地层单位即铁建造作了分类。古环境是从周围岩石的特征、富铁岩石的沉积特征如结构和沉积构造推断出的。三个大的古环境类型占了地球历史一半以上,这就表明,各类型间按年代的丰度差异,与其说由生物的和(或)大气圈—水圈的演化所致,不如说由构造环境和岩浆环境的演化所致。火山环境的相对丰度在前寒武纪早期最大,大陆架环境的相对丰度在前寒武纪中期最大,内陆海环境的相对丰度在显生宙最大。所有三种类型在前寒武纪晚期都有可比较的代表。
This paper describes the chert type of iron-bearing sedimentary rocks, and from the paleoenvironmental perspective they classify the lithostratigraphic unit of rock that they formed. The paleoenvironment is inferred from the characteristics of surrounding rocks, sedimentary features of iron-rich rocks such as structure and sedimentary structures. The three major paleoenvironmental types account for more than half of Earth’s history, suggesting that the abundance of each type by age differs not so much from the evolution of the biological and / or atmospheric-hydrosphere, but rather from Tectonic environment and the evolution of magmatic environment. The relative abundance of volcanic environment was the largest in the Precambrian. The relative abundance of the continental shelf environment was the largest in the middle of the Precambrian. The relative abundance of the inland sea environment was the largest in the Phanerozoic. All three types are comparable in the Precambrian.