Q-mode factor analysis was applied to 99 surface samples from the South China Sea to define four planktonic foraminiferal assemblages: tropical-subtropical assemblage, high-salinity assemblage, transitional assemblage...Q-mode factor analysis was applied to 99 surface samples from the South China Sea to define four planktonic foraminiferal assemblages: tropical-subtropical assemblage, high-salinity assemblage, transitional assemblage and dissolution resistant assemblage. The tropical-subtropical assemblage is a dominant assemblage. The variation of the planktonic foraminifera of this assemblage reflects the changes of tropical surface water from the west Pacific to South China Sea. These four assemblages reveal that different planktonic foraminiferal assemblages are controlled by different factors in the South China Sea, such as tropical-subtropical assemblage controlled by sea surface temperature (SST), high-sallnity assemblage mainly by salinity besides SST, transitional assemblage by SST and dissolution resistant assemblage by water depth.展开更多
The Nansha sea area is located in the place where the Pacific Ocean plate, In-dian-Australian plate and Eurasian plate meet, and therefore, its formation and evolu-tion are both constrained by those three plates. It i...The Nansha sea area is located in the place where the Pacific Ocean plate, In-dian-Australian plate and Eurasian plate meet, and therefore, its formation and evolu-tion are both constrained by those three plates. It is a semi-closed marginal sea area,which is only connected with the Indian and the Pacific Ocean by channels. TheSr-O isotopic composition of sediments in this area was systematically studied for fur-ther understanding of its formation and evolution. The range of our investigation islimited to the area of 105-118°E and 3 - 12°N. The surface sediments from 36 sta-tions, which are distributed in the above area, were analyzed. All of the展开更多
文摘Q-mode factor analysis was applied to 99 surface samples from the South China Sea to define four planktonic foraminiferal assemblages: tropical-subtropical assemblage, high-salinity assemblage, transitional assemblage and dissolution resistant assemblage. The tropical-subtropical assemblage is a dominant assemblage. The variation of the planktonic foraminifera of this assemblage reflects the changes of tropical surface water from the west Pacific to South China Sea. These four assemblages reveal that different planktonic foraminiferal assemblages are controlled by different factors in the South China Sea, such as tropical-subtropical assemblage controlled by sea surface temperature (SST), high-sallnity assemblage mainly by salinity besides SST, transitional assemblage by SST and dissolution resistant assemblage by water depth.
文摘The Nansha sea area is located in the place where the Pacific Ocean plate, In-dian-Australian plate and Eurasian plate meet, and therefore, its formation and evolu-tion are both constrained by those three plates. It is a semi-closed marginal sea area,which is only connected with the Indian and the Pacific Ocean by channels. TheSr-O isotopic composition of sediments in this area was systematically studied for fur-ther understanding of its formation and evolution. The range of our investigation islimited to the area of 105-118°E and 3 - 12°N. The surface sediments from 36 sta-tions, which are distributed in the above area, were analyzed. All of the
