Geochemical Characteristics of Sediment of Pearl River Estuary and Its Paleoenvironmental Evolution
WANG Shan-shan
CAO Zhi-min
LAN Dong-zhao
ZHENG Zhi-chang
Abstract：The trace metal elements and average grain size were determined for sediments of Pearl River Estuary and three important factors were identified using factor analysis method, which controls chemical compositions of sediments, such as catchment erosion, biogenic deposit, marine dominated condition. Moreover, further research indicates that the factor score curves of the three factors can be used to represent the changes of humidity, temperature and the hydrodynamics, respectively, which provides a good effective approach to paleoenviromental reconstruction. On the basis of the study, the evolution history of the regional climate and environment is evaluated and it is revealed that the basic climate succession in the region of Pearl River Delta is the cool-humid, cool-dry, warm-dry, warm-dry, warm-humid and warm-dry successively.
Keywords：Pearl River Estuaryfactor analysisgeochemistrypaleoenvironment.
Publication Date：2010-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 261-267 )