The origin of silt particles in the loess question

Many researchers consider loess as solely the product of glacial activity. Investigations throughout South America, however, have demonstrated that lo ess and loess-like sediments can be formed during geological periods when g laciation was absent. Loess deposits may be derived from volcanic action, f rom weathering processes, and as a result of pedogenic activity. Production of silt, regardless of the geologic process, can result in loess formation under suitable climatic conditions. (C) 2000 Elsevier Science Ltd and INQU A. All rights reserved.