flaser


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flaser

(ˈflɑːzə)
n
a type of pattern or structure in sedimentary rock, caused by intermittent flows within the rock and characterized by alternate layers of larger particles and fine particles
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
This rock contains wavy, flaser, and lenticular beds along with trace fossils, desiccation cracks, runzel marks, and current-formed ripples.
Common sedimentary structures in these rocks, except underclays, include flaser bedding (Figure 3B), lenticular bedding, low-angle cross lamination, and convolute bedding.
Flaser bedding is the dominant sedimentary structure in the sandstones beds; asymmetrical ripples are abundant and burrows are moderately common, indicating a marine environment with rapidly changing current speeds.
(2005) is exposed at the quarry, and the lithology varies from plane bedded, clay-draped sandstone to flaser cross-bedded sandstone.