Background: In mining engineering, sampling is used to get the rate of concentration of minerals in rocks. Sampling procedure is carried out in the field on the area being explored at the predefined coordinates (x,y) according to designed maps. So there are lots of samples from surface materials i.e., rocks/soils/waters etc.
Can we call the sample locations as a point process?
Note that they are not random!
Can we assign each characteristic extracted from each sample (e.g., concentrations, moisture, size, texture etc) as marks?
Is this approach going to be a marked point process?