Lithologies Outside the Model

Good morning,

When I look at the statistics in the evaluation of the drillholes against the geological model, I see that some lithologies appear “outside the model”.

I tried removing the topography from the model, and it seems that some drillholes may be above the topography, which could be why those lithologies appear outside.

I am trying to detect them, but I can’t find where the issue is.

I make cross-sections to see which drillhole might be responsible, but I can’t locate it.

I don’t want to adjust all the drillholes to fit the topography to fix this, because I have an old topography and some drillholes are in mined areas, and I don’t want to modify their Z values.

Any suggestions on how I could detect the area where the lithology that falls outside the model is located?

When the lithology is labeled as “unknown,” I can apply a filter and detect where it is, but in the case of “outside the model,” it doesn’t allow filtering.

I was thinking that maybe in the calculation area it might be possible to generate some kind of script, but I don’t know how to do it.

Thank you very much in advance.Best regards.

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Answers

  • Maybe you could hide all of the lithologies except for the most recent ones. Another idea may be to create a topography from the wellbore locations and combine it with the topographic surfacet that you already have.

  • You could always check your clipping boundaries to see if topography is used as a clipping surface to the model and adjust accordingly. So I'd try to play around with the model boundaries and see where the topography sits in relation to the collars.

  • thank you so much .

    I will try the second one .

    I have already tried the first one without solving the problem