Never Say Never Again: Some Thoughts on Could Haves and Might Have Beens

Abstract

Tankersley and Munson (1992) reiterate that the early and, perhaps, some of the later Meadowcroft Rockshelter radiocarbon dates may be contaminated by anthropogenically derived coal or dissolved coal by-products. Their allegations are assessed in light of available data and rejected. Presently, there is no evidence whatsoever for particulate or nonparticulate contamination of any part of the Meadowcroft Rockshelter radiocarbon chronology.