crenulation


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

crenulation

crenation.
References in periodicals archive ?
A poorly developed cleavage, both a crenulation and spaced fractures (1-2 mm spacing) have been seen in mudstone and shale.
More worryingly, why do I hanker for it, given networks of text, effervescence, pulsation, oscillation, folds and crenulations.
1, 2), weak crenulations on caput, more conspicuous near eye group and anteriolaterally, elsewhere absent or inconspicuous.
Crenulations provide venting of the medullary cavity during inflation.
Small with strongly-produced, prow-shaped, rostral face; dorsal margin straight; beaks opisthogyrate; snout set-off from body laterally by distinct change in slope; body not swollen; anterior gape large, wide, narrowing posteriorly, slightly expanded at anterior end, denticles apparently absent; rostral face with six coarse, concentric, intercalated costae; ventral orifice small, circular; primary carina rounded, similar in size to adjacent rostral face costa; body with 9 smaller, narrow, widely-spaced costae, some of which are intercalated; snout with 5 closely-spaced costae, partially intercalated, larger than body costae; prominent, fine, comarginal, growth crenulations on body, snout, and rostral face; larval shell not present.
The origin of these crenulations is due not to heat, but to greater evaporation and carbon dioxide loss from thin liquid-water films flowing over slight surface protrusions.
Nevertheless, hole S03-295 provided valuable geologic information, supporting the fold interpretation by intersecting fold crenulations in the area of the projected fold nose.
The ventral edge is broadly excavated, with irregular crenulations in the posterior half to two-thirds.