Default Autoplace Values for Iron and Copper?

[aeropar]

Would like to know if anyone knows where to find the default values of Iron and Copper for these properties:

max_probability = 0.1,
sharpness = 1,
richness_multiplier = 10,
richness_multiplier_distance_bonus = 10,
coverage = 0.01,

[betrok]

base/prototypes/entity/demo-resources.lua

[aeropar]

Thanks