A discontinuous reef terrace, 0 to 4.5 m above sea level dated at approximately 60,000 yrs B.P. by thorium-230 and protactinium-231, occurs along the northwest coast of Barbados. This terrace developed as a narrow fringing reef during the last relatively warm period (St. Pierre interstadial), prior to sea-level lowering and extensive glaciation of the “Early” Wisconsin. Interstadial terraces like this one were formed about 28,000, 45,000, and 65,000 yrs ago and are exposed today only in areas such as Barbados that have undergone subsequent uplift.

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