Definition

Noun: A large, rounded rock found on a shore, far from the geological formation where it originated. It is typically transported by natural forces like glaciers or ice floes.

Usage

This is a specific geological term. It is used to describe a particular type of boulder distinguished by its location (a shore) and its non-local origin.

Examples

• Geologists studied the shore boulder to determine the path of the ancient glacier.
• The presence of a granite shore boulder on the limestone beach was a clear sign of glacial transport.
• The shore boulder was much larger and of a different rock type than the native stones on the beach.

Advanced Usage

• The term is often used in scientific contexts related to glaciology, geomorphology, and sediment transport studies.
• It implies a history of long-distance movement, contrasting with boulders that have eroded (in their original place).

Variants and Related Words

• Erratic (noun): A more general synonym for a boulder or large rock that has been moved by glacial action and deposited in an area of different rock type. A shore boulder is a type of erratic found specifically on a shoreline.
• Glacial erratic: A more precise term specifying the transporting agent (a glacier).

Synonyms

• Glacial erratic (when glacial transport is confirmed)
• Transported boulder

Notes

• "Shore boulder" is a compound noun. The core word being explained is the full compound term.
• It is not a common word in everyday conversation but is standard in earth sciences.

Noun

1. a boulder found on a shore remote from its place of origin