Sub-recent microfauna within allogenic sediments at the bottom of a deep cave, Njemica (Biokovo Mt., Croatia)

Clastic sediments deposited at the bottom of vertical, nearly 1000 m deep Njemica Cave (Biokovo Mountain, Croatia) were analysed. Owing to vertical morphology cave, occurrences clastic are sparse. Small, up decimetre-thick, undisturbed sediment accumulations situated near siphon lake revealed interesting palaeontological and mineralogical data. These data used as a useful proxy for discussing depositional processes, provenance paleo-habitats subterranean fauna. The sub-recent assemblages ostracods discovered within sediment, they shown be correlative known endemic species in wider Dinaric Karst area (Pseudocypridopsis sywulai Phreatocandona cf. motasi). well-preserved archive indicates allogenic origin defines it an allochthonous infiltrate Quaternary. detritus originates from Pleistocene–Holocene deposits surrounding area, whose composition was influenced by volcanic activity wide Adriatic region. Sedimentation occurred calm aquatic environment settling suspension. Therefore defined slackwater deposits.