Bitumen and salt contents within the Quaternary sediments at Starunia palaeontological site and vicinity (Carpathian region, Ukraine)

摘要: Geochemical studies were conducted on bitumen and salts saturating the Pleistocene Holocene sediments from an abandoned ozokerite mine in Starunia. This location is noted for discovery of remnants a mammoth three woolly rhinoceroses 1907, nearly completely preserved rhinoceros carcass 1929. The (oil) brines (chloride ions) preserving agents large mammals. main mass organic carbon hosted muds related to originating oil migrating deep accumulations within Boryslav-Pokuttya Unit. highest analysed content 9.26 wt%. chloride ion content, highly concentrated ascending salt-bearing Miocene Vorotyshcha beds, vary 0 4.66 wt% but this usually does not exceed 1 natural pathways underground fluids (oil, gas water) migration Quaternary disturbed by intensive mining operations run between last decades 19th century 1960. Therefore, present preservation conservation conditions large, extinct mammals' remains can be different those prevailing during Pleistocene, when mammals buried. Taking into consideration contents remaining preservatives: bitumen, most favourable zone fossils located close boreholes Nos 22, 23, 28 36N, where thickness exceeds 2 metres. Generally, spatial distributions beds are very similar sediments.