海洋古温标研究新进展及其在冲绳海槽区的应用  

PROGRESS OF MARINE PALEO-TEMPERATURE PROXIES AND THEIR APPLICATION IN THE OKINAWA TROUGH

作　　者：赵京涛[1,2] 李军[1,2] 窦衍光 王利波[1,2] 白凤龙[1,2] 胡邦琦[1,2] 邹亮[1,2] 

机构地区：[1]国土资源部海洋油气资源与环境地质重点实验室,青岛海洋地质研究所,青岛266071 [2]海洋国家实验室海洋矿产资源评价与探测技术功能实验室,青岛266071

出　　处：《海洋地质与第四纪地质》2016年第1期123-132,共10页Marine Geology & Quaternary Geology

基　　金：国家自然科学基金项目(41406074,40906033,41106058)

摘　　要：表层海水古温度的重建是古海洋学研究的重要内容之一,其反演的表层洋流的演化对全球气候变化研究意义重大。近年来,3种新兴的地球化学温度指标(Mg/Ca、Uk′37和TEX86)应用十分广泛,但也是各有利弊。在冲绳海槽地区,不同古温标的应用结果差异较大,机理有待进一步探讨。从全球角度总结了3种古温标的适用性及优缺点,剖析了具体应用过程中不同古温标的区域性和时间性差异。重点综述了冲绳海槽区古温标研究历史和研究现状,强调了区域性古温标适用性研究的重要性,提出了该区域末次冰消期以来古温度演化机理研究面临的挑战。Paleo-temperature reconstruction is one of the most important components in paleoceanographical studies.The evolution of surface currents driven by paleo-temperature plays an important role in global climate change.In recent years,three newly geochemical proxies（Mg/Ca,Uk′37and TEX86）have been widely accepted despite some defects.In the Okinawa Trough,there are obvious discrepancies among the results using different paleo-temperature proxies and the mechanism is unknown.In this paper,we summarized the applicability,merits and faults of the above three paleo-temperature proxies from a global perspective,and analyzed their temporal and spatial differences of the results.Emphases are put on the research history and status in quo of Mg/Ca,Uk′37and TEX86 in the Okinawa Trough,the importance of regional applicability of these paleo-temperature proxies,and the future challenge of paleo-temperature evolution mechanism studies since the last deglaciation in the Okinawa Trough.

关 键 词：古温标 MG/CA Uk′37 TEX86 冲绳海槽 

分 类 号：P736.4[天文地球—海洋地质]