Do fine-grained components of loess indicate westerlies: Insights from observations of dust storm deposits at Lenghu (Qaidam Basin, China)

摘要: Abstract The hyper-arid Qaidam Basin is a major dust source area in China. Mineral materials that settled during 11 storms from November 2003 to April 2005 the northern were comprised of an amount fine particles. particles 14 m s−1 at height 10 m above ground) these unfavourable for gravitational settling single mineral grains. Fine might instead settle either by forming aggregates or adhering larger As such, great clay and silt Chinese loess deposits can largely be correlated with storm processes are likely derived proximal areas. records Loess Plateau (CLP) therefore have interpreted cautiously as climatic proxies changes westerlies.