pudding stone
Definition
Noun: A type of sedimentary rock composed of rounded pebbles and gravel that are cemented together in a finer-grained matrix, such as sand or silt. The name refers to its appearance, which can resemble a plum pudding with fruit pieces embedded in it.
Usage
This is a geological term used to describe a specific rock formation. It is a common name for a type of conglomerate rock.
Examples: * The riverbank exposed a layer of pudding stone. * Geologists study pudding stone to understand ancient river systems. * The rounded pebbles in this pudding stone are very well preserved.
Advanced Usage
- Scientific Context: In geology, "pudding stone" is often used interchangeably with "conglomerate," though it may sometimes specify a conglomerate with a distinct color contrast between the clasts (pebbles) and the matrix, enhancing the "pudding" appearance.
Variants and Related Words
- Conglomerate (n): The more formal, scientific term for a sedimentary rock composed of rounded fragments cemented together.
- Breccia (n): A similar rock to conglomerate, but composed of angular, not rounded, fragments.
Synonyms
- Conglomerate
Different Meanings
This term has a single, specific meaning in geology. It is not commonly used in other contexts.
Noun
-
a composite rock made up of particles of varying size
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