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🌭 Boudinage Structural Necking

Simulate a competent rock layer stretching inside a weaker matrix, necking and fracturing into sausage-shaped boudins as viscosity contrast and strain rate change.

Geology & Earth Science3DModerate60 FPS🌍 Earth

The simulation demonstrates how a competent layer embedded in a weaker matrix necks and segments into boudins under extension, with the resulting boudin shape and spacing controlled by viscosity contrast and strain rate.

🔬 What It Demonstrates

🎮 How to Use

Use the viscosity contrast and strain rate sliders to stretch the embedded layer and observe in real time whether it necks smoothly into ductile boudins or fractures into sharply separated segments.

💡 Did You Know?

The word boudin comes from the French word for sausage, chosen because segmented, necked rock layers in outcrop closely resemble a string of linked sausages.

⚙ Under the hood

Simulate a competent rock layer stretching inside a weaker matrix, necking and fracturing into sausage-shaped boudins as viscosity contrast and strain rate change.

structural geologyboudinagerock deformationtectonicsneckingviscosity contrastextensional strainmetamorphic rocks

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install