Heinrich layer in Antarctic marine sediments and its significance to global changes
Heinrich layer in Antarctic marine sediments and its significance to global changes作者机构:Chinese Acad Sci S China Sea Inst Oceanol Guangzhou 510301 Peoples R China Chinese Acad Sci Guangzhou Inst Geochem Guangzhou 510640 Peoples R China
出 版 物:《Chinese Science Bulletin》 (中国科学通报)
年 卷 期:1998年第43卷第21期
页 面:1830-1834页
核心收录:
学科分类:070704[理学-海洋地质] 0709[理学-地质学] 07[理学] 0707[理学-海洋科学]
基 金:ThisworkwassupportedbytheStateAntarcticCommitteeofChina (GrantNo .KG85_0 1_0 4)
主 题:Antarctica Heinrich layer global change ice-rafted detritus marine sediments
摘 要:Results of grain size analysis and rock magnetic measurements of core NP95-1 from Prydz Bay, Antarctica revealed two series of ice-rafted detritus layers, which correspond to cold climatic events, Younger Dryas and Heinrich event 1, occurring at about 11.7-10.3 and 14.3-13.6 kaB.P. respectively. Studies also show that the sequence of paleoclimatic changes in Antarctica can be correlated with that in other parts of the world, and that the millennial climate of the earth could change synchronously and globally. In addition, magnetic fabric analysis also shows a close relationship between paleoclimatic change and ocean circulation re-assemblage.