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Table 2 Velocities in meters per second of the landslide front for the landslides examined in this study

From: Inferring the high velocity of landslides in Valles Marineris on Mars from morphological analysis

Point

Height reached on mound (m)

Distance reached on mound (m)

Front subaerial velocity (in parenthesis the one calculated based on the center of mass), m/s

Front subaerial velocity, no friction, m/s

Front subaqueous velocity, (in parenthesis the one calculated based on the center of mass), m/s

A (MC)

900

15,000

>124.6 (>88.1)

>81.6

60.4 (40.9)

B (MC)

310

4500

70.4 (49.8)

47.8

35.0 (23.8)

C (MC)

850

19,000

132.4 (93.6)

79.3

59.6 (40.3)

D (MC)

450

15,000

110.5 (78.1)

57.7

44.3 (30.0)

E (MC)

790

15,000

121.3 (85.8)

76.4

56.9 (38.6)

F (OL)

1000

11,000

117.9 (83.4)

86.0

62.6 (42.5)

G (OL)

900

10,000

112.1 (79.3)

81.6

59.4 (40.4)

H (OL)

950

8000

108.0 (76.7)

83.8

60.6 (41.2)

  1. Values in parenthesis are calculated for the center of mass. Data with zero friction coefficient provide the corresponding estimate if the kinetic energy is entirely converted in gravitational rise at the obstacle. The friction coefficients for the subaerial and the subaqueous cases used in the calculations are 0.08 and 0.005, respectively