Learn GeoSection in 5 minutes
Four short lessons that walk you through every feature of the builder — from your first sounding to a shareable, citable section.
1. Builder essentials
Get oriented and drop in your first section in under a minute.
- 1
Load a sample
Open the Builder and click Load sample. Four demo VES soundings appear with topography and distance spacing already enabled — perfect for exploring the controls.
- 2
Pick the environment
Set Default lithology environment to Basement or Sedimentary. Every new layer is auto-classified from its resistivity using this preset.
- 3
Toggle topography & distance
Above the column list, switch Topography line and Use distance spacing on or off. Distance spacing places columns at their true profile chainage instead of evenly.
- 4
Adjust section depth
The Section depth (m) input caps how deep the panel draws. The Builder auto-fits depth when you add data; raise it if your deepest layer is being clipped.
Tip — Everything is saved in your browser — nothing is uploaded. Clearing browser data clears your work.
2. Import & custom lithology
Bring in your own VES data and define rock units that match your site.
- 1
Add a manual column
Click + Add column. Give the sounding a name, elevation and distance, then enter each layer's thickness (m) and resistivity (Ω·m). The last layer is treated as a half-space.
- 2
Import an Excel file
Click Import Excel. The dialog shows the exact columns expected (name, elevation, distance, thickness, resistivity). You can paste from a spreadsheet — one row per layer.
- 3
Add a custom lithology
Open + Custom lithology, name your unit, choose a colour, and set a resistivity range. It becomes selectable from every layer dropdown and shows up in the legend.
Tip — Custom lithologies are also stored locally — share them by sending colleagues a share link, which includes them inline.
3. Visualise & edit
Read the correlation panel and override any auto-classified layer.
- 1
Read the panel
Each column shows resistivity-derived lithology, with topography (if enabled) drawn across the top. The depth axis is shared across all columns.
- 2
Re-assign a layer
Below the panel, the Layer lithology list lets you change any layer's rock type via a dropdown. The section and legend update instantly.
- 3
Re-order or remove columns
In the Columns grid, tweak each station's elevation/distance or delete it with the trash icon. The section re-renders live.
4. Export, share, cite
Get your section out — for a paper, report, or a quick share.
- 1
Export PNG
Click Export PNG for a high-resolution image suitable for slides and publications. A short citation reminder appears the first time.
- 2
Export Excel
Export Excel writes your soundings back to a spreadsheet — handy as a project backup or to hand to a collaborator.
- 3
Share a link
Share link copies a URL that encodes the entire section (columns, lithologies, toggles). Anyone who opens it sees the exact same panel.
- 4
Print or cite
Use Print for a clean printable view. Visit the Cite page for ready-made APA, BibTeX and RIS entries — please cite GeoSection if you use it in publications.
Using GeoSection in a paper?
Grab a ready-made citation in APA, BibTeX or RIS.
Found something rough?
Leave a short review — it directly shapes the next release.