Lenticular bedding is classified by its large quantities of mud relative to sand, whereas a flaser bed consists mostly of sand. The sand formations within the bedding display a 'lens-like' shape, giving the pattern its respected name. They are commonly found in high-energy environments such as the intertidal and supratidal zones.

Flaser bedding is a sedimentary structure characterized by alternating rippled sand and discontinuous mud layers created by the deposition of mud on previously existing sand ripples.

Mud drapes are deposited during waning flood phases. The preferential accumulation of curled, desiccated mud laminae in ripple troughs during periods of exposure produces mud streaks resembling classical flaser bedding. Se hela listan på baike.baidu.com Define flaser. flaser synonyms, Common sedimentary structures in these rocks, except underclays, include flaser bedding (Figure 3B), lenticular bedding, Flaser bedding: lt;p|>|Flaser beds| are a sedimentary |bedding| pattern created when a sediment is exposed to int World Heritage Encyclopedia, the aggregation of the largest online encyclopedias available, and the most definitive collection ever assembled. sample 2.15 - flaser and lenticular bedding - Download Free 3D model by UQ School of Earth and Environmental Sciences (@UQ_SEES) [67fd211] Flaser and wavy bedding are sedimentary structures characterized by alternating rippled sand and mud layers.

Flaser bedding

Types of heterolithic beddings Differences between flaser, wavy and lenticular beddings White = sand/sandstone Black = mud/shale (Reineck & Wunderlich, 1968) FLASER BEDDING Lenticular Bedding Wavy Bedding INTRODUCTION Discontinuous ripples or lenses (in the vertical and Download royalty-free Geology Flaser bedding Sedimentary Structures. Large quantites of sand relative to mud. stock video 91607766 from Depositphotos collection of millions of premium high-resolution stock photos, vector images, illustrations and videos. Ripple, flaser and lenticular bedding are well known, but for describing profiles, they are not sufficiently defined and subdivided.

sample 2.15 - flaser and lenticular bedding - Download Free 3D model by UQ School of Earth and Environmental Sciences (@UQ_SEES) [67fd211]

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The three main types of heterolithic bedding are flaser, wavy, and lenticular. Retrieved from Wikipedia CC BY-SA 3.0

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Wavy Bedding. Lenticular Bedding . Graded Bedding . Evenly Laminated Sand and Horizontal Bedding . Coarsely Interlayered Bedding .
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The second digit would depend on the type of sandstone (4=gray, 5=crystalline, 6=hard). Lenticular bedding would be coded as 3X3 and wavy bedding would be coded as 3X2.5. sample 2.15 - flaser and lenticular bedding - Download Free 3D model by UQ School of Earth and Environmental Sciences (@UQ_SEES) [67fd211] The wavy orientation of the streaks indicate flaser-type ripple bedding. Interbedded sandstone and shale (layered) ( 322.5 ) in core. Note that shale interbeds between sandstone beds are thicker than in previous core.

Flaser beds form in environments where flow strengths fluctuate considerably, thus permitting the transport of sand in ripples, followed by low-energy periods when mud can drape the ripples. Flaser bedding can be subdivided according to how the mud is deposited over the rippled sand. The various types of flaser bedding are simple flaser, bifurcated flaser, wavy flaser, and bifurcated wavy flaser. Simple flaser bedding is when the flasers do not contact one another and they are concave when the bed is upright.
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