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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Ekologické vazby ohledně endolitických producentů mikrovrteb a substrátů v barrandienských vápencích devonského stáří, Česká republika
 Hladil, Jindřich
The microboring activity in barrandian seas was generally low. It was limited by relatively cold geostrophic currents in outer parts, and the seafloors in inner basin depressions were also adversely influenced by stagnant d18O-positive and heavy-metal-rich bottom waters. The really flourished microborers were only in two stratigraphical intervals, and both have shown /"redbeds-like/" deposits. The first developed close with major end-Tippecanoe regressions in Praha sequence, and the second occurred in the Daleje-Trebotov sequence. These /"redbeds-like/" periods correspond mineralogically, geochemically and paleobiologically to relatively hot humid climates (~ mesotrophic but well oxygenated waters). It differed from other long intervals characterized by marine Corg and silica burial (cherts)
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