desiccation crack

desiccation crack

[‚des·ə′kā·shən ‚krak]
(geology)
References in periodicals archive ?
The position of the paleo-shoreline was identified by the appearance of desiccation cracks in the lower Terrill Member.
The presence of desiccation cracks marks the position of the paleo-shoreline, and algal fossils and microendoliths constrain the depth ranges for more downramp deposits.
White EM (1970) Giant desiccation cracks in Central South-Dakota soils.
Furthermore, the presence of asymmetric ripples, desiccation cracks, mud chips, and raindrop impressions indicate that many of the specimens studied were deposited in a shallow aquatic setting characterized by intermittent subaerial exposure.
In Hoover Quarry material, both examples of Scoyenia gracilis occur in conjunction with desiccation cracks, indicating a periodically emergent environment.
Skolithos burrows from the Hoover Quarry frequently occur in conjunction with desiccation cracks, and burrow infills commonly show a vuggy texture with large voids preserved, the latter is an indication that the burrows were constructed in a subaerial environment where sediments were sufficiently cohesive that burrow collapse did not occur.
Sedimentary structures include cross-bedding, desiccation cracks, small-scale ripples and cut-and-fill (Epstein, 1971).
Washington, September 16 (ANI): Networks of giant polygonal troughs etched across crater basins on Mars have been identified as desiccation cracks caused by evaporating lakes, providing further evidence of a warmer, wetter Martian past.
I also saw that they resembled the desiccation cracks that we see on Earth in dried up lakes," said El Maarry.
Water migrated from as much as 50 cm (20 inches) below the freezing front toward the thin ice lenses; vertical desiccation cracks formed below the freezing front.
Desiccation cracks have been found on bedding planes (Kleesment & Shogenova 2005).
rocks of the Kihnu drill core display desiccation cracks in clayey coatings of quartz grains (Fig.