The effects of the use of coal in around 1800, and then the steam engine, and the accelerated advances in technology since, will leave a marked effect on the geological record. The Holocene Epoch began about 11,500 years ago and we may already be a few hundred years into the Anthropocene Epoch, the period where humanity has dominated the effects on the planet.
I was reminded of a question that has occurred to me in the past. With all of our extraction of fossil fuels, and minerals from beneath the Earth's crust, What is left behind? Seems like there would be vast 'empty' spaces left behind where once the ground was being held up by whatever was taken. I have no doubt that for such deposits to exist, there must have been a generally geologically stable capsule for things such as oil to be contained, but even Diamonds have flaws - and the amount of empty space, (apart from volatile natural gas) would seem to be significant. Then of course there are subterranean coal fires