Gorbarenko S.A.; Derkachev A.N.; Astakhov A.S.; Nürnberg D.; Kaiser A.; Southern J.R.
(2002)
Seven lithological units, alternating between horizons enriched in biogenic opal (diatoms) and carbonate (foraminifera) and units composed largely of terrigenous sediment with very low biogenic admixture, were distinguished ...