Fig. 2: Particle size and end-member analyses.
From: Higher interglacial dust fluxes relative to glacial periods in southwestern North American deserts
a Grain size distributions of Stoneman Lake catchment soil (gray) and lake sediment (black). b Grain size ranges (boxes) and end-member (EM) modes (arrows) of intercontinental19,20,21 and regional dusts3,4,22. c Particle size distributions of clastic sediment end members generated by a non-parametric end-member model of lake sediment particle size data in (a). EM1 (modes: 0.18, 3.0, 27, and 600 µm; 33.4% of total clastic sediment volume), EM2 (mode: 5.3 µm; 17.9%), and EM5 (modes: 0.18, 17, and 169 µm; 2.4%) represent clastic sediment derived from basalt of the local lake catchment (shades of pink). EM3 (mode: 13 µm; 27.6%) corresponds to fine-grained dust (green). EM4 (mode: 38 µm; 18.8%) corresponds to coarse-grained dust (dark blue).
