Citation: | YAN Yu, JIANG Fuqing, ZENG Zhigang. Research progress of tracing sediment sources in the Western Pacific Warm Pool[J]. Marine Geology & Quaternary Geology, 2023, 43(5): 148-159. doi: 10.16562/j.cnki.0256-1492.2023071402 |
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.
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Map of ocean currents and potential provenance of Western Pacific Warm Pool
Ternary diagram of clay minerals in sediments from the potential source areas of the Western Pacific Warm Pool
Kaolinite to chlorite ratio versus illite to kaolinite ratio from different sources of the Asian continent [39]
δ18O values and crystallinity index of quartz in the sediment of possible sources of the Western Pacific Warm Pool
87Sr/86Sr vs εNd (0) values of the detrital fraction of the Western Pacific Warm Pool sediments and potential source areas