usual apologies for x-posting, but i'm trying to guage how much influence schiffer might have had on the discipline, and how stratigraphy is now perceived...
do people generally/systematically record evidence of possible disturbance (roots, frost, rodent/worm holes, etc.; and if so, how?), or just make a note in the site diary, or just discard anything that's "obviously" intrusive (modern coins, etc.), or... what do they do?
does anybody still "assume" that "artifacts contained within a given stratum are more or less contemporary"?