late反义词
1.late反义词 篇一
The Late Cenozoic strata are 313 m thick, revealed by the drilling core PD-99 in the south Changjiang delta. Monazite chemical dating shows that 350-500-Ma monazites predominate in the Pliocene and 100-275-Ma monazites in the Quaternary, indicating a great change of their provenance. The first presence horizon of monazites younger than 25 Ma is just above the Matruyama/Gauss boundary (~2.58 Ma), whch is exactly when uplift of the Tibetan Plateau began to influence deposition in the East China Sea. Variations in contents of monazites younger than 25 Ma can be divided into two sections. The Early-Middle Pleistocene with less <25 Ma monazites corresponds with rapid uplift of the Tibetan Plateau, and the Late Pleistocene with more <25 Ma monazites parallels the peak uplift of the Tibetan Plateau. This study demonstrates that chemical dating of monazites in the river-mouth strata is a useful method to explore changes of river drainage basins, and deconvolute multistage tectonic and magmatic activity histories in the provenance areas.
作 者：FAN Daidu LI Congxian Yokoyama Kazumi ZHOU Baochun LI Baohua WANG Qiang YANG Shouye DENG Bing WU Guoxuan 作者单位：FAN Daidu,LI Congxian,LI Baohua,YANG Shouye,DENG Bing,WU Guoxuan(State Key Laboratory of Marine Geology, Tongji University, Shanghai 92, China)
Yokoyama Kazumi(Department of Geology, National Science Museum, Tokyo, Japan)
ZHOU Baochun(Shanghai Natural Museum, Shanghai 200002, China)
WANG Qiang(Tianjin Institute of Geological and Mineral Resources, Tianjin 300170, China)