Sea-Floor Spreading, Carbonate Dissolution Level, and the Nature of Horizon A

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Science  11 Sep 1970:
Vol. 169, Issue 3950, pp. 1077-1079
DOI: 10.1126/science.169.3950.1077


Evidence from leg 2 of the Deep Sea Drilling Project suggests a constant spreading rate for the floor of the North Atlantic over the past 80 million years; a major lowering of the carbonate dissolution level during the early Pliocene; and an early to middle Eocene age for horizon A.

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