- 责任者：Kong Fancui (College of Resource and Environmental Engineering ; Guizhou University ; Guiyang 550003 ; China) ; Yang Ruidong
- 刊名：Marine Geology & Quaternary Geology
- 出版年：2011
- 卷期：31(5)
- 关键词：第四纪 ; Quaternary ; 古环境 ; paleoenvironment ; 贵州 ; Guizhou Province
- 页码：p.117-126
- 图表：illus., 2 tables, 35 refs.
- 分类号：1400
- issnNo：ISSN0256-1492
- isbnNo：CN37-1117/P
Geochemistry of trace elements and REE of the Quaternary sediments in the Yaoshang Formation in Weining country, Guizhou Province ere analyzed. Based on the previous studies about Ostracoda and pollen, the authors discussed the sedimentary environmental changes through the vertical variation of elements. The results show that the 14 trace elements (eg.Li, Ba, Sr) are well correlated. The content the 14 trace elements and Rb/Sr, Sr/Ba, Sr/Cu ratio indicate a relatively dry and hot climate in the layers of 2, 6, 8, 10, 12 of the Yaoshang Formation while the other layers formed undera colder and wetter climate. Sr/Cu changes between 1 and 5, indicating a humid subtropical plateau monsoon climate. Sr/Ba changing between 0.2~0.5 indicates that the Caohai sediment was deposiled in a freshwater enviroment, suggesting a very strong weathering of the parent nock of the Permian basalt which is high in REE content. The combination of Sr/Cu and Rb/Sr ratio values can be used as the indicator of climatic change.