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crinkle cracks

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Published: 01 September 2016
DOI: 10.1130/2016.2522(02)
... Crinkle cracks are sand-filled cracks up to 5 mm wide in plan view that pinch at their ends. In cross section, they are canted and crinkled. They cut mudstone beds that underlie hummocky cross-laminated sandstone lenses. They are here described from the Piegan Group, Proterozoic Belt Supergroup...
Series: SEPM Atlas Series
Published: 01 January 1995
DOI: 10.2110/sepmatl.01.001
EISBN: 9781565762756
... and crinkled lamination, thin bedding, stromatolites, thrombolites, mudcracks, sheet cracks, prism cracks, flat pebble gravels, fenestrae, burrows and roots (and their casts and molds), evaporite minerals (and their casts and molds), early cements, hardgrounds, caliche crusts, tepee structures, dissolution...
Journal Article
Published: 01 December 1968
Journal of Sedimentary Research (1968) 38 (4): 1040–1058.
... geographical belts. From the high-water mark seaward these are: (1) Flat zone--firm, smooth algal mat, with no topographic relief, overlying quartz-rich carbonate sand and evaporites; (2) Crinkle zone--leathery algal skin forming a blistered surface over gypsum and carbonate mush; (3) Polygonal zone--algal mat...
Image
Photographs of rheomorphic features in Nine Hill Tuff. (A) Stretched pumice...
Published: 01 August 2010
) Crinkle folds in middle of tuff. (D) Isoclinal fold in middle of tuff. Note that hinge line is unrecognizable except along an ∼30 cm segment. Pen is ∼15 cm long. (E) Stretching lineation in middle of Nine Hill Tuff showing pumice opening into elongate lenticules(?) ( Chapin and Lowell, 1979 ). (F) Tension
Image
Photographs of rheomorphic features in Nine Hill Tuff. (A) Stretched pumice...
Published: 01 August 2010
) Crinkle folds in middle of tuff. (D) Isoclinal fold in middle of tuff. Note that hinge line is unrecognizable except along an ∼30 cm segment. Pen is ∼15 cm long. (E) Stretching lineation in middle of Nine Hill Tuff showing pumice opening into elongate lenticules(?) ( Chapin and Lowell, 1979 ). (F) Tension
Journal Article
Published: 01 December 1993
Bulletin of Canadian Petroleum Geology (1993) 41 (4): 373–388.
... to crinkled, most laminae being wavy. Sets of laminae are disrupted by both mud cracks and deep prism cracks. Sets of laminated mudstone greater than 2 m thick cannot be subdivided into shallowing-upward cycles. However, two or three shallowing-upward cycles 1 to 2 m thick are found in this facies assemblage...
Journal Article
Published: 01 June 1989
Bulletin of Canadian Petroleum Geology (1989) 37 (2): 198–209.
... represent 1 m. Fining-upward sequences are indicated by numbered black arrowheads. Intervals A and B are dominated by mudstone (see text for further discussion). cracks commonly extend down into underlying crinkled lami- nite. The mudcracked, brecciated olomite mudstone facies comprises centimetre-thick...
Journal Article
Published: 01 July 2004
Journal of Sedimentary Research (2004) 74 (4): 453–461.
... of progradation of a coastal sabkha, (3) halite crystals interpreted to be ephemeral salt-pan "hoppers," (4) "stromatolitic" lamination interpreted to have been formed by "algal" (cyanobacterial) mats in the peritidal zone, (5) a single crack in halite, interpreted as evidence of desiccation, and (6) a "bullseye...
FIGURES | View All (5)
Journal Article
Journal: AAPG Bulletin
Published: 01 May 2000
AAPG Bulletin (2000) 84 (5): 652–682.
... full-vortex structures, crinkled laminae, sandy rhythmites, and double mud layers (tidal sand bars), (4) heterolithic facies with flaser-bedded sandstone (tidal sand flats), (5) muddy rhythmites with silty lenticular beds and double mud layers (subtidal mud flats), (6) bioturbated glauconitic sandstone...
FIGURES | View All (28)
Journal Article
Journal: Geophysics
Published: 08 February 2013
Geophysics (2013) 78 (2): V63–V77.
... rocks that are of interest to geoscientists and engineers. For example, Mueller (1991) reports spatial changes in crack-related hydraulic conductivity detected through processing of S-waves, Angerer et al. (2002) discuss the S-wave expression of zones with increased pore-fluid pressure...
FIGURES | View All (12)
Journal Article
Journal: AAPG Bulletin
Published: 01 December 1973
AAPG Bulletin (1973) 57 (12): 2457–2458.
... of the textural features characteristic of sabkha deposits, except possibly the crinkle bedding, and that feature may be attributed as logically to submarine sliding. Nodules, stromatolites, chicken-wire fabric, flat-pebble conglomerate, and mud cracks have not been reported. Some brecciation is obvious...
Image
Planar-laminated bindstones (F3 facies) and pedogenic carbonate breccia (F4...
Published: 28 July 2022
pores are moulds after Melanopsis gastropod dissolution. C) Thin section under plane polarized light of F3 facies displaying alternations of dark (micrite) and light (accumulation of characean cortical cells fragments and calcite microspar) crinkled to wavy laminae, with characean gyrogonite ( gyr
Journal Article
Journal: AAPG Bulletin
Published: 01 February 2002
AAPG Bulletin (2002) 86 (2): 335–340.
... (2002) states that we did not report diagnostic intertidal sedimentary structures, such as desiccation cracks. This is misleading because supratidal zones are characterized by rooted muds and desiccation cracks, whereas intertidal zones are characterized by flaser bedding, wavy bedding, and lenticular...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 15 February 2019
GSA Bulletin (2019) 131 (9-10): 1411–1439.
... bed showing Kinneyia -type wrinkle marks. Synsedimentary deformation is pervasive in the mudstone facies. In many intervals, laminae are crinkled to gently undulating, and bed surfaces are creased or lumpy. Most bedding planes exhibit distinctive crack arrays that include polygonal...
FIGURES | View All (26)
Journal Article
Published: 01 June 1972
Bulletin of Canadian Petroleum Geology (1972) 20 (2): 187–237.
... crescent-shaped roofs and typically with fla t horizontal bases (Plate I, Fig . 5 ; Plate V, Fig . 6) . d) Vague laminae of restricted lateral and vertical extent . The laminae listed under (d) are rarely stacked without interruptio n and do not normally pinch and swell or show the minute crinkling typi...
Journal Article
Journal: AAPG Bulletin
Published: 01 July 1966
AAPG Bulletin (1966) 50 (7): 1375–1388.
.... Ostracode and brachiopod fragments are rare. Bird’s-eye structures are present in some of the crinkled mats that form the breccia clasts. Scattered pyrite and some angular quartz grains occur as previously described. Hemispherical stromatolite-constructed dolomite, poorly laminated.— This microfacies...
FIGURES | View All (5)
Journal Article
Journal: PALAIOS
Published: 03 May 2023
PALAIOS (2023) 38 (4): 188–209.
... cracks ( Bouougri and Porada 2002 ); (5) multidirectional ripple marks ( Noffke 1998 ); and (6) erosional remnants and pockets ( Noffke 1999 ). In late Ediacaran and early Cambrian, benthic motile metazoans interacted with matgrounds and exploited them for food and possibly oxygen, disturbing...
FIGURES | View All (12)
Journal Article
Published: 01 September 2021
Jour. Geol. Soc. India (2021) 97 (9): 993–1004.
... type pseudocolumnar stromatolites in calcareous siliciclastic sediments (dark grey) interlayered with hydrofractured dolomitic limestone (grey) from the lower part of Krol A Member. The subaerial exposure is interpreted from the oxidised and limonitised sediments and presence of desiccation cracks...
FIGURES | View All (26)
Journal Article
Journal: AAPG Bulletin
Published: 01 July 1994
AAPG Bulletin (1994) 78 (7): 1075–1096.
... in the upper intertidal crinkle zone. The most common occurrence of the algal-mat peat is associated with the polygonal zone and is represented by the stacked saucerlike structures of this zone. The cracked, upturned margins of the polygons are filled by carbonate sand. The peats of the ponds and polygonal...
FIGURES | View All (16)
Book Chapter

Published: 01 September 2016
DOI: 10.1130/2016.2522(002)
... describe distinctive, sand-filled, spindle-shaped cracks found in Belt mudstones and offer an explanation for their origin. They call the structures “crinkle cracks” and interpret them as forming when storm waves pass across unconsolidated mud flats. They document such features in rocks ranging in age from...