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BIF的成因是长期困扰学术界的重要科学问题。目前,学术界提出了BIF具有火山喷发作用(阎鸿铨,1985)、陆源风化物沉积作用(Zhai and Windley,1989)、热水喷流沉积作用(Zhang et al.,2012)和生物参与下的沉积作用(Li et al.,2011)等观点。然而,BIF在沉积后期经历了漫长的地质演化历史,复杂的变质改造作用势必会为BIF物源的示踪带来影响。另一方面,如果BIF沉积过程中的物源并不
The causes of BIF are important scientific issues that have long plagued academia. At present, academic circles have proposed that BIF has volcanic eruptions (Yan et al., 1985), terrestrial weathering sediments (Zhai and Windley, 1989), hydrothermal jet deposition (Zhang et al., 2012) and sediments Role (Li et al., 2011) and other points of view. However, the BIF experienced a long history of geological evolution in the late sedimentation period. The complicated metamorphism and transformation will inevitably affect the tracing of BIF sources. On the other hand, if the source of the BIF deposition does not occur