Economic and Environmental Geology

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Fig. 6.

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Fig. 6. Maps of service areas of aggregate supply sites using network analysis. Results maps are carried on (a) 50 km, 11 sites in group 1, (b) 50 km, 32 sites in group 2, (c) 30 km, 62 sites in group 3, (d) 30 km, 89 sites in group 4.
Econ. Environ. Geol. 2021;54:515-33 https://doi.org/10.9719/EEG.2021.54.5.515
© 2021 Econ. Environ. Geol.