Abstract

Like many phosphorite deposits in the world, the Baltic Middle Cambrian and Lower Ordovician phosphate-bearing basin owes its origin primarily to microbial activity. Colossal accumulations of valves and detritus of lingulates (phosphate brachiopods, mainly from the orders Lingulida and Acrotretida) are the main sources of phosphate material in this basin. The fossilization of the valves of these brachiopods was based on their early postmortem mineralization, which made the valves resistant to destruction. Bacteria were the drivers of this process. This was followed by transfer, breaking, redeposition, and accumulation of the valves and valve fragments in suitable areas of the sea.

中文翻译：

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细菌在俄罗斯板块西北部寒武纪-奥陶纪含磷酸盐Obolus床积累中的作用

摘要

与世界上许多磷矿床一样，波罗的海中寒武统和下奥陶统含磷盆地的起源主要是微生物活动。巨大的瓣膜堆积物和舌状体（磷酸腕足动物，主要来自舌形目和Acrotretida目）的碎屑是该盆地磷酸盐物质的主要来源。这些腕足动物瓣膜的化石化是基于它们早期的死后矿化，这使得瓣膜能够抵抗破坏。细菌是这个过程的驱动力。随后是瓣膜和瓣膜碎片在适当海域的转移、破裂、重新沉积和堆积。