Climate Signals from 10Be Records of Marine Sediments Surrounded with Nearby a Continent

Abstract

As a climate indicator, 10Be has been frequently investigated because of its property associated with rainfall, dust fallout and its production mechanism in the atmosphere by cosmic-rays. Similar patterns of 10Be and δ18O, magnetic susceptibility records show climatic influence, however, 10Be is incorporated with the production rate which is inversely proportional to the paleomagenetic intensity. The cyclic orbital forcing effect toward 10Be,δ18O, and paleomagenetic intensity are connected, 10Be signal is clearly mixed with climatic component and earth's paleo magnetic strength. Scrutinizing authigenic 10Be with 9Be, a region either climatic or production related zone can be evidently identified by looking at the 10Be/9Be ratios. Investigation of 9Be is another useful tracer to examine climatic influence with 9Be. Marine environments like the East Sea of Korea, Blake Outer Ridge, and Mendeleev Ridge are associated with significant terrigeous input during deglacial periods. Examining both beryllium isotopes together with other multi-proxy stratigraphy will provide understanding the pattern of environmental change at various glacial/interglacial events much more evidently.ptibility records show climatic influence, however, 10Be is incorporated with the production rate which is inversely proportional to the paleomagenetic intensity. The cyclic orbital forcing effect toward 10Be,δ18O, and paleomagenetic intensity are connected, 10Be signal is clearly mixed with climatic component and earth's paleo magnetic strength. Scrutinizing authigenic 10Be with 9Be, a region either climatic or production related zone can be evidently identified by looking at the 10Be/9Be ratios. Investigation of 9Be is another useful tracer to examine climatic influence with 9Be. Marine environments like the East Sea of Korea, Blake Outer Ridge, and Mendeleev Ridge are associated with significant terrigeous input during deglacial periods. Examining bot