Laserfiche WebLink
GEOCHRON LABORATORIES adivision of <br />KRUEGER ENTERPRISES, INC. <br />711 CONCORD AVENUE • CAMBRIDGE, MASSACHUSETTS 02138 • U . S . A <br />TELEPHONE. (6t 7)6763691 TELEFgx (617)661~01d8 <br />RADIOCARBON AGE DETERMINATION REPORT OF ANALYTICAL WORK <br />Our Sample No. GX-22909 Date Received: 02/26/97 <br />Your Reference: letter of 02/23/97 Date Reported: 03/14/97 <br />Submitted by: hfr. Kelly Payne <br />Mayo & Associates <br />710 East 100 North <br />Lindon, Utah 84042 <br />Sample Name: Colonel Chinn Well <br />groundwater precipitate <br />AGE = 36,140 +8,010/-3,930 C-14 years BP (C-13 corrected). <br />• (1.11 +/- 0.70)% of the modern (1950) C-14 activity. <br />Description: Sample of groundwater precipitate. <br />Pretreatment: <br />The barium salt precipitate was rapidly vacuum filtered <br />and immediately hydrolyzed, under vacuum to recover <br />carbon dioxide from the barium carbonates for the <br />analysis. C-13 analysis was made on a small portion <br />of the same evolved gas. <br />Comment: <br />. b,3Ca0e = - 8. 9 X. <br />------------------------------------------- <br />Notes: This date is based upon the Libby half life (5570 years) for "C. The error stated is t1a as judged <br />by the analytical data alone. Our modern standard is 95% of the activity of N.B.S. Oxalic Acid. <br />The age is referenced to the year A.D. 1950. <br />