Geological epochs have their markers: fossils and specific rocks help trace events that happened millions of years ago.

If human civilization ever seizes to exist, and Earth will be explored by archeologists of the new civilization, they will be able to trace us by one of the proposed geological markers of the Anthropocene epoch — Plastiglomerate.

It is a new type of stone formed by the intermingling of melted plastic, beach sediment, basaltic lava fragments, and organic debris.