In condensed sections, fossils and organic, phosphatic and glauconitic material tend to be concentrated compared with rapidly deposited sections that contain few fossils.

• 在凝缩剖面中，化石和有机物磷酸盐和海绿石质物质相对于几乎不含化石的快速沉积剖面而言，都趋向于被凝缩。