Strike and dip direction of moderately dipping beds

# Symbols made for GMT by Jose A. Alvarez-Gomez
#
# Geological symbol: Plane Approximately Medium
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# The symbol reads the strike in the 3rd column in psxy
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N: 1 a
$1 R
0 0 1 y
0.125 -0.0625 0.25 -
0.125 0.0625 0.25 -