Abstract—In the section of the sedimentary cover of the East European Platform, the new Sabantuy chromite ore occurrence was revealed. It is localized in Upper Kazanian sandstones of the erosional terrace above the floodplain of Malaya Berkutla Creek in the south-west of the Republic of Bashkortostan. The article presents the first results of geological, lithological, and mineralogical–geochemical studies of the new ore occurrence with signatures of an ancient coastal–marine placer. The Cr₂O₃ content in chromite sandstones (chromitolites) is 15.9–17.2 wt %. The bulk of the heavy fraction (67%) is composed of sub-angular and sub-rounded Cr-spinel grains 0.15–0.25 mm in size. Their mineralogical features indicate proximity to Cr-spinels from ultramafic rocks of ophiolite complexes.

摘要—在东欧平台的沉积物覆盖层部分中，发现了新的Sabantuy铬铁矿矿床。它位于巴什科尔托斯坦共和国西南部的马来亚Berkutla Creek泛滥平原上方的侵蚀阶地的喀山上部砂岩中。本文介绍了具有古代沿海-海洋砂矿特征的新矿的地质，岩性和矿物-地球化学研究的初步结果。铬₂ O ₃铬铁矿砂岩（铬铁矿）中的含量为15.9-17.2 wt％。大部分（67％）的重颗粒由0.15-0.25 mm的亚角和亚圆形的Cr-spinel晶粒组成。它们的矿物学特征表明从蛇绿岩配合物的超镁铁质岩中接近Cr-尖晶石。