Bone detritus in sediments of Tethis ocean

Abstract

The comparative study of the Oligocene bone breccia geochemistry in the lower part of the Oligocene deposits (Mangishlak, Oligocene Miocene) has been studied along with the recent uranium deposits. Studies of the Namibian shelf samples where the series of macro- and microelements have been analized, including major and minor elements, which showes their similarity of major elements and miner elements in the both deposits old and Recent samples. From the other side the similarity between uranium mineralization has been found in the uranium mineralization in Maikop and recent bones on the Namibian shelve. The paleogeographic data of the Maikop Basin showed that the ore deposits have been formed in the productive shallow sea where mass mortality of the fish happened often as well as in present Ocean. The high values of metal concentration is the older bones in the Tethis are related to evaporation and saturation of marine water.