Meaning of dyke-rock | Babel Free

Definitions

A type of igneous rock that fills a dyke (a rock filling a fissure that is now often rising above the older stratum that has eroded away).

Examples

“Appears to be a fine-grained dioritic dyke rock, but is too dirty and stained to be satisfactorily examined.”

“If the dyke is of great thickness the centre may be coarsely crystalline as a deep-seated plutonic rock and this makes it difficult to distinguish a dyke rock in hand specimen.”

“As a dyke is made of igneous rock, it is usually possible to date⟳ it by radiometric dating methods, which give⟳ an absolute age for the dyke rock.”

CEFR level