沉积与特提斯地质2023，Vol.43Issue(4)：702-711,10.DOI:10.19826/j.cnki.1009-3850.2021.09001
北部湾东南部末次冰期以来环境演化与驱动机制
Environmental evolution and its driving mechanisms of southeastern Beibu Gulf since the Last glacial period
摘要
Abstract
The stratigraphic structure,the geochemistry of major and trace elements,and the composition of clay minerals and the crystallographic characteristics have been analyzed by single-channel shallow seismic,ICP-MS,EDS,and XRD.The climate evolution and its driving mechanisms since the last interglacial period in the southeastern Beibu Gulf have been accurately characterized.The variation of indices shows that the provenance supply of the northwest South China Sea has been controlled by climate and sea level changes since 75 thousand years(75 ka)ago.In the late Pleistocene,the Heinrich event and the differential uplift of the Qinghai-Tibet Plateau caused the East Asian monsoon,especially the winter monsoon,to gradually increase at 56 ka,41 ka,and 28 ka.Since the Holocene(11.5 ka ago),the southeastern part of the Beibu Gulf has experienced several drying-humid warming processes,which gradually evolved into the current climate stage.关键词
黏土矿物/东亚季风/更新世/南海Key words
clay mineral/East Asian monsoon/Pleistocene/South China Sea分类
天文与地球科学引用本文复制引用
梁磊,许国强,黄武轩,梁定勇,李孙雄,郝强,黄蓉..北部湾东南部末次冰期以来环境演化与驱动机制[J].沉积与特提斯地质,2023,43(4):702-711,10.基金项目
海南省基础与应用基础研究计划(自然科学领域)高层次人才项目基金(2019RC348) （自然科学领域）
海南省海洋地质资源与环境重点实验室自主课题(ZZ[2020]2019256-02) （ZZ[2020]2019256-02）
成都理工大学工程技术学院院基金(C122018032) （C122018032）
