GEOLOGY

Detailed explanation-1: -We find molds where an animal or plant was buried in mud or soft soil and decayed away, leaving behind an impression of their bodies, leaves, or flowers. Casts are formed when these impressions are filled with other types of sediment that form rocks, which take the place of the animal or plant.

Detailed explanation-2: -Which forms first: a fossil mold or a fossil cast? A fossil mold forms first. 4. Describe the process of a cast forming, indicating when the mold has formed and when the cast has formed.

Detailed explanation-3: -Sometimes when an animal dies and its body decays, it can leave an imprint in the sediment. If this imprint fills in with minerals from sediment and groundwater, it can harden to form a fossil. This fossil is called a cast fossil. The fossilized imprint is called a mold fossil.

Detailed explanation-4: -Fossil molds and casts preserve a three-dimensional impression of remains buried in sediment. The mineralized impression of the organism left in the sediment is called a mold. The mineralized sediment that fills the mold recreates the shape of the remains. This is called a cast.

Detailed explanation-5: -The animal dies. Soft parts of the animal’s body, including skin and muscles, start to rot away. Before the body disappears completely, it is buried by sediment-usually mud, sand or silt. Many more layers of sediment build up on top. More items