Geologic Map Symbols

Below are examples of the symbols used in geologic diagrams and maps to represent specific kinds of rocks. If bedding, cross-bedding, ripples, fossils, distortion, or certain materials are present in the rock, the symbols are altered. To download the complete list of standard symbols, click here.

gravel-conglomerate-symbol

Gravel/conglomerate

breccia-symbol

Breccia

bedded-sandstone

Bedded sandstone

clay-shale

Clay shale

limestone-symbol

Limestone

metamorphic-symbol

Metamorphic

gneiss

Gneiss

igneous-symbol

Igneous

Cortney

About Cortney

Geology lover. Proud owner of a 2014 Honda CRF250L. Grew up on NES, N64, & Gameboy. Collects maneki neko (lucky cats). Married to a gearhead. Email cortney@luckysci.com. Wishlist.

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