Volcanic ash in surficial sediments around Zhongsha Islands,the South China Sea,mainly include three kinds of volcanogenic detritus,for example,brown volcanic glass,colorless volcanic glass and volcan
Analyses of 41-yr (1965-2005) tropical cyclone (TC) activity over the western North Pacific (WNP)lead to a number of new findings on the climatological and interannual variation of the tropical cyclon