摘要
从沉积物中提取示踪指标是研究西太平洋暖池区古环境和古气候演化的有效途径之一,而准确识别沉积物的源区是其中的关键。目前已通过不同的物源示踪指标,如黏土矿物、石英单矿物、常量元素、稀土元素以及碎屑组分的放射性成因Sr-Nd同位素等,对西太平洋暖池北部和西部第四纪以来的沉积物来源进行了研究,结果表明暖池区沉积物主要来源于亚洲大陆和火山岛弧,部分来源于澳大利亚和/或新几内亚。本文系统归纳和总结了上述示踪指标在西太平洋暖池区的物源研究进展和成果,以及研究中存在的问题,并对西太平洋暖池沉积物源研究提出了几点建议。
Extracting tracer indicators from sediments is one of the effective ways to study the paleoenvironment and paleoclimate evolution in the Western Pacific Warm Pool(WPWP),and the key is to accurately identify the source region of sediments.The sources of sediments in the northern and western WPWP since the Quaternary have been studied using different source tracers,such as clay minerals,quartz,major elements,REE and Sr-Nd isotope of clastic components.Results show that the sediments of the WPWP originate mainly from the Asian continent and volcanic island arcs,and some originate from Australia and/or New Guinea.This paper systematically summarizes the sources and tracing methods of sediments in the WPWP,points out the issues in the current researches,and puts forward the prospects for the identification of sediment sources in the future.
作者
颜钰
蒋富清
曾志刚
YAN Yu;JIANG Fuqing;ZENG Zhigang(Key Laboratory of Marine Geology and Environment,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China;Center for Ocean Mega-Science,Chinese Academy of Sciences,Qingdao 266071,China;University of Chinese Academy of Sciences,Beijing 100049,China;Laboratory for Marine Geology,Laoshan Laboratory,Qingdao 266061,China)
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2023年第5期148-159,共12页
Marine Geology & Quaternary Geology
基金
国家自然科学基金“西太平洋暖池8.5 Ma以来风尘输入变化及其古气候效应”(42076049),“西太平洋俯冲体系中岩浆活动及其对热液物质供给的制约”(91958213),“深海界面过程和化能生态系统”(42221005)
崂山实验室科技创新项目“新生代西太平洋环境演化的沉积记录及机制”(LSKJ20224200)
中国科学院战略性先导科技专项“印太交汇区海洋物质能量中心形成演化过程与机制”(XDB42000000),“热液/冷泉区岩浆物质贡献与流体化学过程”(XDB42020402)
泰山学者工程专项(ts201511061)。
关键词
源区
沉积物
物源示踪
西太平洋暖池
source area
sediment
source tracing
Western Pacific Warm Pool
