Triassic sequences in turkey

In general, Triassic rocks throughout the studied areas are dominated by limestones locally containing foraminifers and conodonts. Interbedded terrigenous clastics are present in the Lower Triassic wherever it occurs, but otherwise are restricted to the Upper Triassic sections of Hadim. The Lower‐Middle Triassic rocks of Hadim were deposited in a persistent tidal lagoon, invaded from time to time by marine faunas when the enclosing barrier shoal was breached. At other times, the lagoon became very shallow and hypersaline but never dried out completely. Occasionally the lagoon was filled with clastics deposited by sheet‐floods from the land. At the beginning of the Upper Triassic, tectonic uplift of the hinterland resulted in a massive supply of terrigenous gravels and sand to the marginal lagoon. When this supply ceased, marine influence reasserted itself, forming a semi‐enclosed sea.