📜 Theorem, law or theory

Neptunism and the succession of formations (Werner)

Neptunismo y sucesión de formaciones (Werner)

Date
1774-1787 · confidence high
Place
Freiberg, Saxony, Germany
Credited to
Abraham Gottlob Werner
Field
Cosmos & Earth

What was discovered

From the Freiberg Mining Academy, Werner taught that all rocks, even basalt and granite, precipitated from a primeval ocean that gradually receded, and he ordered them in successive formations (primitive, transitional, stratified and alluvial). His system dominated European geology until the volcanism of Desmarest and Hutton displaced it.

The theory proved wrong in essentials (basalt is volcanic), but its stratigraphy by formations and its observational method were very influential. His Kurze Klassifikation dates from 1787.

What it led to

  • training of generations of geologists (von Buch, Humboldt, Jameson)
  • the Neptunism-Plutonism debate, which drove fieldwork
🕸️ View in the graph

Built on

Made possible

Links

Sources✓ verified 2026-11-06