Final Exercise -- Page 10 of 12

Working with Radiocarbon Calibration Curves -- a final exercise Page 10 of 12

The table below the C-14 Decay curve and the Correction curves contains the % Modern values for 4 samples. Drag on the interactive C-14 decay curve to determine the Radiocargon age of the sample from its % Modern value. Then use the Correction Curves to complete the table. When you are finished, click "Next" for your "CERTIFICATE of COMPLETION" as a Virtual Geochronologist.

Working with Radiocarbon Calibration Curves -- a final exercise
Page 10 of 12

The table below the C-14 Decay curve and the Correction curves contains the % Modern values for 4 samples.

Drag on the interactive C-14 decay curve to determine the Radiocargon age of the sample from its % Modern value.

Then use the Correction Curves to complete the table. When you are finished, click "Next" for your "CERTIFICATE of COMPLETION" as a Virtual Geochronologist.

C-14 Decay Curve

Correction Curves

0–400 BP
400–1000 BP
900–1500 BP
1400–2000 BP
1900–2500 BP
2400–3000 BP
2900–3500 BP
3400–4000 BP
3900–4500 BP

Sample	% Modern (=% C-14)	Radiocarbon Age (BP)	Corrected Radiocarbon Age
Chaco Canyon, New Mexico: Axe handle	86%	1.	5.
Fragment of Roman Gladiator leather harness	77%	2.	6.
Wood fragments from Island of Thera ("Atlantis")	63%	3.	7.
Buried tree stump New York glacial deposit	17%	4.	Too old for correction