The age we live in now will likely in the far future be called "the plastic age" by us geologists.

50 million years into the future we will still be able to easily find our age in the stratigrafi. Just like we can still find the extinction event from when the meteor hit the earth 65M years ago as a fine layer of debris all over the globe.

Our consumer life style is already a very distinct part of the geology.

http://www.techtimes.com/articles/128512/20160128/plastic-become-part-earth-geology.htm