A Search for an Early Holocene CACO₃ Preservation Event

Abstract

The CO 2 record for air bubbles from the Byrd Station ice core suggest a drawdown in the ocean‐atmosphere carbon reservoir during the early Holocene. Such a drawdown would require a corresponding increase in the CO 3 = ion concentration in the deep sea. We report here the results of a search in Atlantic sediments for evidence that the lysocline showed a corresponding deepening. While both the pteropod and the calcite preservation records we have obtained are consistent with expectation, they are not conclusive.