Provenance discrimination diagrams used to identify whether mixed sources exist. Geochemistry of loess deposits in northeastern China: constraint on provenance and implication for disappearance of the large Songliao palaeolake

Supplementary Fig. 6 Provenance discrimination diagrams used to identify whether mixed sources exist. Trend lines on scattergrams are mass gain-mass loss paths extending from the origin. Note that the geochemical compositions for the Harbin aeolian loess locate between average compositions of the Horqin Sandy Land and the Songnen Sandy Land, indicating mixture of these two sandy lands.