Record of carbonate preservation and the Mid-Brunhes climatic shift from a seamount top with low sedimentation rates in the Central Indian Basin

records responding to Mid-Brunhes Climatic Shift (MBCS), consistent with an increased global productivity. While the coccolith diversity increased, a decrease in coccolith productivity was found during MBCS. At nearly the same time period, earlier records from the equatorial Indian Ocean, western Indian Ocean and eastern Africa have shown an increased productivity in response to the influence of westerlies and increased monsoon. Influence of easterlies from Australia and the intensification of aridity are evidenced by increased kaolinite content and clay-sized sediments responding to the MBCS. Increased abundance of Globorotalia menardii and other resistant species beginning from marine isotope stage (MIS) 11 and proliferation of coccolith Gephyrocapsa spp. indicate increased dissolution which is consistent with the widespread global carbonate dissolution during this period. The relatively high carbonate dissolution during transition period of MIS 3/2 and glacial to interglacial period (MIS 6, 7 and 8) may be due to enhanced flow of corrosive Antarctic Bottom Water (AABW) into the CIB.