Viscosity of some materials materials viscosity Air(20°C 1.8×10 water(20°C 1.00×10 Pitch(50°C) 10 13 Glacial ice 15 Rock salt(20°C) 3^10 18 Glass(20°C) 1018。~1 0 Limestone(20°C) Lava(1100°C 10 (1200°C) 1300°C) 30 ithosphere 3 Asthenosphere 1019~1020Viscosity of some materials 材料 粘度(Pa.s) 空气(20℃) 水(20℃) 沥青(50℃) 冰川冰 岩盐(20℃) 玻璃(20℃) 灰岩(20℃) 熔岩(1 100℃) (1 200℃) (1 300℃) 岩石圈 软流圈 1.8 10-5 1.00 10-3 106 1013 3  1015 1018~1021 1021 4  103 3  102 30 1022~1023 1019~1020 materials viscosity Air (20◦C) water (20 ◦ C) Pitch (50 ◦ C) Glacial ice Rock salt (20◦C) Glass (20◦C) Limestone (20◦C) Lava (1100 ◦ C) (1200 ◦ C) (1300 ◦C) Lithosphere Asthenosphere