We've got mudstones and very fine-grained sediments and how they fossilize, nodules and cementation.

我们有和非常细粒的沉积物，以及它们如何石、结核和胶结作用。

It seems that iron is the paleontologist's friend so any kind of iron cementation, iron stone cementation, so siderite, iron carbonate helps to preserve structures within sediment.

是古生物学家的朋友，所以任何一种胶结，石胶结，所以菱矿，碳酸有助于保护沉积物中的结构。