Supplement to: An, Zhisheng; Kukla, George J; Porter, Stephen C; Xiao, Jule (1991): Magnetic susceptibility evidence of monsoon variation on the Loess Plateau of Central China during the last 130000 years. Quaternary Research, 36(1), 29-36, https://doi.org/10.1016/0033-5894(91)90015-W