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Progress in Earth and Planetary Science
Fig. 5 | Progress in Earth and Planetary Science

Fig. 5

From: ESR signal intensity of quartz in the fine-silt fraction of riverbed sediments from the Yangtze River: a provenance tracer for suspended particulate matter

Fig. 5

Geographical distribution of electron spin resonance (ESR) signal intensity of quartz in riverbed samples. a Sand (>63 μm) fraction. b Coarse-silt (16–63 μm) fraction. c Fine-silt (4–16 μm) fraction. The “/” separates the values of different samples collected from sites in close proximity to one another

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