Reports

Purine and Pyrimidines in Sediments from the Experimental Mohole

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Science  25 Dec 1964:
Vol. 146, Issue 3652, pp. 1680-1681
DOI: 10.1126/science.146.3652.1680

Abstract

Cytosine, adenine, guanine, and thymine, but not uracil, have been detected in core samples taken from various depths of the experimental Mohole. The following quantities of bases were found in the deepest core samples available (approximately 25 x 106 years old): cytosine, 2.5 µg/5 g; adenine, 0.9 µg/5 g; guanine, 0.2 µ/5 g; thymine and uracil, 0 µg/5 g.