Response of Magnetic Minerals to the Mid-Brunhes Climate Event Recorded in Deep-Sea Sediments of the West Philippine Sea

The Mid-Brunhes Event (MBE) was one of the most important global climate events since 800 ka. deep-sea palaeoceanographic changes in Western Pacific might have been more sensitive to MBE and they not well documented yet. In this study, we investigated a core collected from Philippine Sea then obtained magnetism record around 900 signal deposition process derived concentration-dependent (χ, χARM SIRM) grain-size-dependent magnetic parameters (χARM/χ χARM/SIRM). Across MBE, content minerals fluctuation grain size decreased. Both grain-size indices calculated are correlated with glacial–interglacial alternations display major shift at MBE. decreased may be associated flourishing biota tropical during interglacial intervals. accumulation mainly regulated by sediment rate, which related shoaling carbonate compensation depth. Overall, study expanded environmental for suggested new possible influence critical climatic event on inferred interactions between various systems timescales.