sentences:  This island is named after Aleksandr Mikhaylovich Sibiryakov, an Imperial Russian gold-mine proprietor.Sibiryakov financed explorations to Siberia, such as Nordenskiöld's, and also took part in some expeditions of his own.12 km off Sibiryakov Island's northern cape lies a narrow and curved group of three islands known as Nosok Island (Остров Носок; "Ostrov Nosok").