Chemical and mineral compositions of bottom sediments from the Sea of Japan

Physical properties (water content, bulk density, magnetic susceptibility, natural remanent magnetization, nature of magnetization, and composition of ferromagnetic fraction), chemical, and (optionally) mineral composition of bottom sediments from the north-west Sea of Japan have been studied. Their stratigraphic subdivision based on composition of diatoms has been carried out. Obtained data have allowed to find out some aspects of influence of paleogeographic conditions and diagenetic processes on change of physical properties of the sediments, as well as on their composition in Holocene and Late Pleistocene.针对日本海西北部海底沉积物，研究人员对其物理性质（含水量、容重、磁化率、天然剩余磁化强度、磁化性质及铁磁组分组成）、化学组成以及（可选的）矿物组成开展了研究。同时基于硅藻组成完成了该套沉积物的地层划分。基于获取的实验数据，本研究厘清了古地理环境与成岩作用对沉积物物理性质演化，以及全新世和晚更新世沉积物组分特征产生影响的若干方面。