How much is a scraper? Curation, use rates, and the formation of scraper assemblages
We apply a battery of valuable techniques to the study of end scrapers, but we can learn even more. Using ethnoarchaeological data and flake debris, this paper discusses the hafting modifications, degrees of use, and rates of "curation" of an assemblage of end scrapers from the Leavitt Paleo-Indian site in Michigan. Obviously, scrapers are reduced in the course of use, but results here indicate that much of the use of the scrapers deposited at Leavitt occurred elsewhere. Apparently, more scrapers were left there than the amount of behavior involving those tools would suggest.
Shott, Michael J., "How much is a scraper? Curation, use rates, and the formation of scraper assemblages" (1995). Anthropology Faculty Research. 415.