Carbonate Sediments: Oriented Lithified Samples from the North Atlantic

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Science  07 Nov 1969:
Vol. 166, Issue 3906, pp. 740-741
DOI: 10.1126/science.166.3906.740


Indurated carbonate samples, obtained from the North Atlantic sea floor with a deep-sea drill coring apparatus, suggest that the phenomenon of deep-sea carbonate lithification is more complex than had been thought previously. Lithified-nonlithified couplets can now be related in age and orientation. Age determinations based on the method of carbon-14 dating show that adjacent nonlithified-lithified layers may differ in age by more than 30,000 years.

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