How to create 3D solid geologic model of subsurface

[MinaRahimi]

Hi,

My data includes X,Y,Z. I also have the thickness of each geologic layer. I can create TIN of each geologic layer but I don't know how can I fill the gap between these layers.

How can I create 3d solid geologic model in ArcGIS?

Thanks,

Mina

[JakubSisak]

This is normally done by extruding between 2 surfaces which created a multipatch geological layer. You will need 2 TIN surfaces (top surface and bottom surface) and a polygon layer containing input features that defines the area you wish to extrude.
See Toolbox -> 3D Analyst Tools -> TIN Surface -> Extrude Between

[MinaRahimi]

What should be the input polygon layer? How can I define the area between surface and bottom tins?

[JakubSisak]

What should be the input polygon layer? How can I define the area between surface and bottom tins?

The Input Polygon layer is basically the 2D (Plan View) Area of interest, or the most outer extent of your model.

Help on "Extrude Between" provides an explanation on this including a figure with visual...

[MinaRahimi]

Thanks alot

It works.

Mina

[MinaRahimi]

Hi,

It works but the layers are not correct. The geologic layers that are made by this way do not correspond with the existing map.

I used bedrock geology for the polygon feature. Do you know what should I do?

Thanks

Mina