W Libby 1949 (Nobel 1960) C-14 half-life 5730 yr; AMS 1980s 100x sensitivity; calibration via dendro + IntCal20; resolution ~50 yr in last 50 ka.
W Libby 1949 (Nobel 1960) C-14 half-life 5730 yr; AMS 1980s 100x sensitivity; calibration via dendro + IntCal20; resolution ~50 yr in last 50 ka.