|Eroded rock material will be deposited in a different location. If the eroded material is compacted by the overlaying sediments, the fragments will be cemented together and new rocks are being formed. Sometimes remains of dead organisms are preserved, to some extent. The remains will be chemically altered, but their imprints remain visible and are known as fossils. Sometimes one finds organisms that are covered by minerals, or resin. This is an initial stage of possible fossilization, here referred to as incipient fossils. And organisms may leave behind evidence of their presence in the form of tracks, or burrows. These may also fossilize, and are then known as ichnofossils or simply trace fossils.