I am looking for a tool / widget to display cross section of geology boreholes on arcgis portal. Appreciate if anyone could recommend or share any materials regarding it. Thank you.
Cross section of geological boreholes can be created using voxel layers in ArcGIS Pro. The voxel layer then can be published as a scene layer for web viewing (in web scenes).
Note: currently, web scenes in ArcGIS Online (December 2021 Release) support adding voxel layers in local web scenes. I would recommend following the ArcGIS Enterprise blogs to see when this feature will be available in portal.
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I am not able to find the example you are referring to (GeoTOP model from TNO - Geological Survey of the Netherlands). Could you by any chance direct me to the correct web scene?