A great book on this subject: The Earth After Us: What Legacy Will Humans Leave in the Rocks? by Jan Zalasiewicz http://amzn.to/20RbrZo
Sources: Waters, Colin N., et al. "The Anthropocene is functionally and stratigraphically distinct from the Holocene." Science 351.6269 (2016): aad2622.
Steffen, Will, et al. "The Anthropocene: conceptual and historical perspectives." Philosophical Transactions of the Royal Society of London A: Mathematical, Physical and Engineering Sciences 369.1938 (2011): 842-867.
Zalasiewicz, Jan, et al. "The technofossil record of humans." The Anthropocene Review (2014): 2053019613514953.