Monsoonal Fluctuations vs Marine Productivity during Past 10,000 Years — A Study Based on Sediment Core Retrieved from Southeastern Arabian Sea

摘要: The intensity of the Indian monsoon has varied greatly over past glacialinterglacial cycles as well on shorter time scales (Duplessy, 1982; Van Campo, 1986; Clemens et al., 1991; Sirocko 1993; Reichart 1998; Von Red 1999). It is known that seasonal variation in heating southern Asian continent produces a semiannual reversal wind direction northern Ocean (Wyrtki, 1973). In summer (June-September), intense SW winds cause strong mixing water column and upwelling which eventually promotes high productivity Arabian Sea. contrast, during winter, weak NW relatively lowers Sea (Quasim, 1977). was demonstrated biological terrigenous supply strongly linked to monsoon, although lowest noticed inter-monsoon period