储层与盆地边缘大气水渗滤带隔绝，形成了低硫酸盐的还原环境，有利于甲烷菌活动。
There is a barrier between reservoir and atmospheric water of basin margin forming reducing environment with low sulphate which is favorable to methane bacteria activity.
如此低的硫酸盐浓度，表示太古代大气中的氧气极为稀薄。
Such low levels of sulfate indicate that the archean atmosphere was virtually devoid of oxygen.
熟料大块的形成起源于窑尾物料中存在大量碱的硫酸盐和氯化物的低共熔液相及其不均匀分布。
The clinker masses are formed due to the presence and non-uniform distributions of large amount of lower melting alkali sulphates and chlorides in the kiln charge.
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