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ball and pillow structures

Aug 31, 2016 · “Ball & pillow” is a type of soft sediment deformation, when fresh sand is deposited atop soft, squishy mud. The density inversion triggers a load/sag phenomenon, and the sand pooches downward while the mud squooches up alongside, folding the sand into a shape much like an up-side-down mushroom cap. Want to explore more?

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  • ball and pillow structure- oxford reference

    ball and pillow structure- oxford reference

    ball and pillow structure Quick Reference A sedimentary structure occurring on the base of some sandstones which are interbedded with mudstones, and characterized by globular protrusions and isolated pillows of sandstone found in the underlying mudstone

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  • carbonate ball and pillow structures| geological magazine

    carbonate ball and pillow structures| geological magazine

    A liquefaction layer displaying ball and pillow structures occurs within the back reef facies of the Cawdor Limestone (P 2 zone) near Wirksworth. This layer consists of pillow-shaped masses of coarse biosparite within a biomicrite matrix. The pillows are 0.6–0.8 m thick and 1.5–4.0 m across

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  • ball and pillow structuressynsedimentary folds and faults

    ball and pillow structuressynsedimentary folds and faults

    Ball and pillow structures Synsedimentary folds and faults Dish and pillar structures Channels Scour and fill structures Mottled bedding stromatolites. Principle primary sedimentary structures classified by morphology (cont’d) (know these) BEDDING PLANE MARKINGS Groove cases, striations, bounce, brush, prod, and roll marks Flute casts Parting lineation Load casts Tracks, trails, and burrows Mudcracks …

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  • untitled document [www.seddepseq.co.uk]

    untitled document [www.seddepseq.co.uk]

    Ball and Pillow Structure . Convolute Bedding . Slump Structures . Convolute Bedding due to shear caused by slope instability or tractional drag : Convolute Bedding . Dewatering Structures. Dewatering structures develop when a high-porosity water-rich layer such as a silstone is overlain by a layer with lower porosity such as a sandstone

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  • sedimentary structures: fine-grained fluvial- geological

    sedimentary structures: fine-grained fluvial- geological

    This entry was posted in Atlas of sediments & sedimentary structures, How to do things, In the field, Interpreting ancient environments and tagged ball and pillow structures, Epsilon bedding, Geodetic Hills fossil forest, meandering river channel facies, outcrop of high sinuosity channel, outcrops of meanderinf river channels, planar crossbeds

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  • ball-and-pillow (pillow) structure| springerlink

    ball-and-pillow (pillow) structure| springerlink

    Ball-and-pillow structure is a soft-sediment deformation structure comprising rounded masses of clastic sediment (pseudonodules, q.v.) set in similar or finer grained matrix, that are vertically stacked within one horizon (Figure B2 (A), (B))

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  • lithologies ofball and pillow structuresin the middle to

    lithologies ofball and pillow structuresin the middle to

    Ball and pillow structures, sediment masses that form as isolated "pillows" or "balls", are found in the Middle to Late Ordovician Fairview Formation that outcrops near Maysville, Kentucky. The literature suggests these structures are the result of the shaking of sediment by earthquakes

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  • ball and pillow structuressynsedimentary folds and faults

    ball and pillow structuressynsedimentary folds and faults

    Ball and pillow structures Synsedimentary folds and faults Dish and pillar structures Channels Scour and fill structures Mottled bedding stromatolites. Principle primary sedimentary structures classified by morphology (cont’d) (know these) BEDDING PLANE MARKINGS Groove cases, striations, bounce, brush, prod, and roll marks Flute casts Parting lineation Load casts Tracks, trails, and burrows Mudcracks …

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  • ball and pillow structures? |yahoo answers

    ball and pillow structures? |yahoo answers

    Oct 13, 2008 · Favorite Answer This is a structure found in sedimentary rocks in which a particular layer has been converted to a series of spherical and near spherical masses, by a …

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  • (pdf) origin ofball and pillow-like structures in tanjero

    (pdf) origin ofball and pillow-like structures in tanjero

    The outcrops of the formations, in Sulaimaniya area, contain many ball and pillow-like structures These structures are studied in the field in several localities and concluded that they are formed

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  • primary structures- arcgis storymaps

    primary structures- arcgis storymaps

    Nov 18, 2019 · Often referred to as ball-and-pillow structures, load casts are the most common type of sedimentary intrusion

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  • using sedimentarystructuresto interpret ancient

    using sedimentarystructuresto interpret ancient

    Load structures (also called load casts, or ball-and-pillow structures): Common in newly deposited beds where a higher density layer, like sand, overlies a lower density mud. Differential loading cause bulbous shaped sand bodies to project into the mud

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  • sedimentary structures | encyclopedia.com

    sedimentary structures | encyclopedia.com

    Internal sedimentary structures include: those formed by physical depositional processes (cross-stratification, flat bedding (see PLANE BED), lamination, and heterolithic structures); those due to post-depositional deformation (convolute bedding, slump structures, dish and pillar structures, flame structures, ball and pillow structures, etc.); those caused by organic disturbance (bioturbation, trace fossils); or by post-depositional chemical disturbance (enterolithic structures…

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  • soft-sediment deformation anddewatering structures

    soft-sediment deformation anddewatering structures

    Ball and pillow structures - load structures with bulbous rounded shapes Overturned cross-bedding - produced by current drag across the top of a dewatering cross-bed set. Goose Tickle Group, Port au Port Peninsula, western Newfoundland, Canada

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  • farrow & ball

    farrow & ball

    Explore our distinctive palette of paint colours and discover handcrafted wallpapers gathering ideas to help transform your home with Farrow & Ball Get inspired for your latest project and shop online today

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