/usr/share/gmt/cpt/geo.cpt is in gmt-common 5.3.1+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | # $Id$
#
# Color table for Earth's relief combining the gebco
# and dem1 CPTs with a hinge at 0.
# Designed by P. Wessel, SOEST
#------------------------------------------------
# COLOR_MODEL = RGB
# HINGE = 0
# RANGE = -8000/8000
#------------------------------------------------
-1 black -0.875 20/30/53
-0.875 20/30/53 -0.75 38/60/106
-0.75 38/60/106 -0.625 46/80/133
-0.625 46/80/133 -0.5 53/99/160
-0.5 53/99/160 -0.375 72/151/211
-0.375 72/151/211 -0.25 90/185/233
-0.25 90/185/233 -0.125 141/210/239
-0.125 141/210/239 0 245/255/255
0 0/97/71 0.0102040816327 16/122/47
0.0102040816327 16/122/47 0.102040816327 232/215/125
0.102040816327 232/215/125 0.244897959184 161/67/0
0.244897959184 161/67/0 0.34693877551 100/50/25
0.34693877551 100/50/25 0.571428571429 110/109/108
0.571428571429 110/109/108 0.816326530612 255/254/253
0.816326530612 255/254/253 1 255/254/253
#----------------------------------------------------------
N gray
F white
B black
#----------------------------------------------------------
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