Preliminary assessment of cyclic variations in foraminifers, barite, and cadmium/calcium ratios in early Pleistocene sediments from Hole 709C (equatorial Indian Ocean)

Abstract

The increase in percentage of the tropical "divergence' planktonic foraminifer species G. menardii and the reduction of the "nondivergence' tropical species G. sacculifer at times of inferred ice growth is attributed to periodic intensification of divergence associated with the Equatorial Counter Current. Barite and insoluble residue sedimentation at the site also generally show a relative increase at those times. -from Authors