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🏔️ Drumlin Formation Under Ice Sheets

Explore how drumlins, streamlined hills of glacial till, form beneath moving ice sheets and how their swarms reveal the direction ancient glaciers flowed.

Geology & Earth Science3DModerate60 FPS🌍 Earth ❄️ Ice & Cold

The simulator visualizes how a small initial irregularity in a subglacial till bed interacts with moving ice and pressurized meltwater to progressively amplify into a streamlined, teardrop-shaped drumlin, while also showing how consistently aligned drumlin swarms encode the direction of past ice flow.

🔬 What It Demonstrates

🎮 How to Use

Adjust the ice flow speed, till water saturation, and initial bump size to see how these variables influence whether and how quickly a streamlined drumlin shape emerges. Step through simulated time to watch the feedback loop between ice flow, water pressure, and till deformation reshape the bump into an elongated hill, then switch to swarm view to see how many such hills align under one consistent flow direction, and rotate the flow direction to observe how the entire swarm's orientation responds.

💡 Did You Know?

Drumlin swarms can contain more than 10,000 individual hills, and some of the largest known fields, such as those covering parts of the Canadian Prairies and central Ireland, stretch across tens of thousands of square kilometers, making them among the most extensive landform patterns produced anywhere on Earth's surface by a single geological process.

⚙ Under the hood

Explore how drumlins, streamlined hills of glacial till, form beneath moving ice sheets and how their swarms reveal the direction ancient glaciers flowed.

glaciologydrumlinsice sheetsglacial geologysubglacial tilllandform evolutionquaternary geologygeomorphology

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