hornfels

horn·fels (hôrn′felz′)

noun pl. -·fels′

a fine-grained metamorphic rock usually formed at shallow depths

Converse of object

intersect: Dikes intersecting the hornfels but truncated by granite can be seen.

Adjective modifier

Silurian: Mountain summits show roof of Silurian hornfels above intrusive granites of Western Mournes.

Modifies a noun

handaxes: Similar levels of standardization appear to have been achieved with the very much smaller hornfels handaxes, and very rare cleavers.
metamorphism: The eastern outcrop contact between Gala Group greywackes and Slieve Croob diorites has formed hornfels metamorphism of the country rock greywackes.
layer: Moraine near Camp III 146 Quartzose pegmatite injecting the calc hornfels layer.

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