Recent studies indicate that volcanism may be a potentially important factor in the formation of karstic bauxite, but more evidence is needed. Six billion tons bauxite formed upon paleo-karstic terrain within short time Late Carboniferous North China Basin (NCB) and Permian Youjiang (YB) China. The factors trigger their apace remain unclear. Herein, we proposed extensive volcanic eruptions have...

Ciliates are single celled eukaryotes recognized as key players in the microbial loop of aquatic ecosystems. The present study was carried out on Krka River (Croatia), a karst freshwater ecosystem characterized by tufa barriers, biomineralization and highly diverse communities. main aims were to investigate ciliate community structure biofilm (i.e. periphyton) samples collected from light- dark...

Herbicides are used to increase the yield of crops and pastures. The herbicide 2, 4-D has high leaching potential in karstic environments because it is water soluble, which causes that been found groundwater submerged caves Yucatan Peninsula. We detected presence agricultural non-agricultural zones northeaster Yucatán Peninsula by using UV spectrum obtained from HPLC-DAD as qualitative indicato...

Karst systems, such as caves, provide a unique opportunity to study the groundwater from inside in contrast spring studies, where hydrographs, chemographs, and thermographs show an integrated signal entire catchment aquifer. Studies karst springs that recharge conduit characteristics significantly influence how temperature is transmitted thus could inform on structure of underground flow paths....