Geosci / Structural geology

Reading a geological cross-section

Mapping the rocks… 0%
Click a numbered marker to explore it · keys 1–8 also work

Rock key

Conglomerate
Sandstone
Shale
Limestone
Siltstone
Slate (older, tilted)
Granite (intrusion)
Dolerite (dyke)
Hornfels / marble (baked rock)