Abstract
The sequential accumulation of middle Sarmatian sediments in the Taman Trough in the terrigenous and carbonate settings is considered. Six facies of the shallow-water basin are identified. The first half of the middle Sarmatian was marked by the accumulation of dominant clayey sediments. The formation of small serpulid-microbial bioherms took place under relatively deep conditions (upper part of the lower sublittoral zone). The terminal middle Sarmatian was dominated by the deposition of carbonates with a wide development of bacterial-algal mats. Their formation in the upper sublittoral setting below the base level of ordinary waves was intermittently disturbed by the enhanced influx of terrigenous material and accumulation of clays, as well as by the storm-induced roiling and bioturbation.
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