Glendonites in the Aptian Stage (Lower Cretaceous) of Western Siberia
摘要
Abstract
The first occurrence of glendonites (pseudomorphs of calcite after the cold-water mineral ikaite) from the Aptian Stage (the Tanopcha Formation) of Western Siberia is described. A review of the Aptian–Albian glendonite record in other regions of the world is provided, and the significance of these occurrences for clarifying the climate of the terminal part of the Early Cretaceous is discussed. Aptian glendonites from Northeastern Russia are shown.