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gypsification

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Core photos and photomicrographs of <span class="search-highlight">gypsification</span> and dedolomite fabrics in...
Published: 01 December 2020
Figure 16. Core photos and photomicrographs of gypsification and dedolomite fabrics in the Prairie Evaporite Formation of northeastern Alberta. Well 16-35-095-10W4M. A) Light beige dolomicrite of an unnamed marker bed encased in sulphates (see Fig. 15 ). The top of the marker bed
Journal Article
Published: 01 December 2020
Bulletin of Canadian Petroleum Geology (2020) 68 (4): 91–122.
...Figure 16. Core photos and photomicrographs of gypsification and dedolomite fabrics in the Prairie Evaporite Formation of northeastern Alberta. Well 16-35-095-10W4M. A) Light beige dolomicrite of an unnamed marker bed encased in sulphates (see Fig. 15 ). The top of the marker bed...
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Series: GSA Memoirs
Published: 01 January 1952
DOI: 10.1130/MEM50-p1
... or compaction results in distinct layers called katatectic layers or beds, separated by katatectic surfaces. The anhydrite cap rock as thus formed is designated primary anhydrite cap rock. All changes in it or additions to it are epigenetic. Gypsification, under present conditions, probably does not take...
Journal Article
Journal: AAPG Bulletin
Published: 01 April 1981
AAPG Bulletin (1981) 65 (4): 764.
... km) wide and about 250 ft (75 m) deep. The thickness of the section between the top of the Salado Formation and the base of marker bed 103 ranges from an intact 210 ft (64 m, east of Nash Draw) to a residual 45 ft (14 m in the Draw), where gypsification of Rustler anhydrite and removal of Rustler...
Journal Article
Published: 01 June 1970
Journal of Sedimentary Research (1970) 40 (2): 734–744.
... granoblastic gypsum. Recrystallization of hydration gypsum leads to unequigranular granoblastic gypsum, in unstrained and perfectly oriented grains. Prophyroblastic gypsum may also recrystallize in conjunction with the alabastrine variety. In most cases of gypsification there is no evidence for any volume...
Journal Article
Published: 01 September 1956
Journal of Sedimentary Research (1956) 26 (3): 240–252.
... as gypsum. For gypsification to take place, space must be available for water in addition to space occupied by anhydride; this total volume (anhydride plus water) is greater than the amount of space occupied by the resultant gypsum. Distortion of rocks may follow gypsification of anhydride but is the result...
Journal Article
Journal: AAPG Bulletin
Published: 01 January 1982
AAPG Bulletin (1982) 66 (1): 91–98.
... or anhydrite from an euxinic sulfurbearing sea to enter. Water movement during this lithification would also permit the gypsification process to occur. 1 Manuscript received, November 26, 1980; accepted, September 9, 1981. 2 University of Michigan, Ann Arbor, Michigan 48104. 3...
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Journal Article
Journal: AAPG Bulletin
Published: 01 January 1925
AAPG Bulletin (1925) 9 (1): 42–78.
.... In this specimen the hydration, or more definitely the gypsification, clearly invaded the anhydrite rock along bands presumably of greater permeability. Close examination of the figure shows that there are differences in texture within the anhydrite itself. These are due to differences in size of grain, the denser...
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Journal Article
Published: 01 November 1989
Journal of Sedimentary Research (1989) 59 (6): 891–911.
... recrystallized to the anhydrites now present. Based on all accumulated data and on mass balance calculations, at least two types of subsurface flow could have caused pervasive dolomitization and gypsification/anhydritization: 1) expulsion of burial compaction water, i.e., chemically modified seawater...
Image
Schematic interpretation of stages and architecture of evaporite dissolutio...
Published: 01 December 2020
and erosion occurs prior to deposition of the Lower Cretaceous McMurray Formation, with further erosion at the sub-Cretaceous unconformity. Syndepositional dissolution of halite occurs during McMurray Formation accumulation, resulting in upward extension of faults. During this stage, some gypsification
Journal Article
Published: 01 August 1994
Quarterly Journal of Engineering Geology and Hydrogeology (1994) 27 (3): 267–273.
... . Mechanism of Gypsification. Geochimica et Cosmochimica Acta, 15 , 57 – 72 . Deere, D. U. & Miller, R. P. 1966 . Engineering Classification and Index Properties for Intact Rock. Air Force Weapons Laboratory Report AFWL-TR-65-16, Kirk-land, New Mexico . Dermitzakis, M...
Image
Stratigraphic cross-section F–F', running west–east across the Bitumount Ba...
Published: 01 December 2020
abundant at the top of the remaining anhydrite. Gypsification of the Fort Vermilion Formation is also highlighted. Locations of photos in figures 16 and 17 are shown on the cross-section. The map insets show the location of the cross-section in the mineable oil sands area (background is the Keg River
Journal Article
Published: 01 May 2012
Proceedings of the Yorkshire Geological Society (2012) 59 (1): 53–76.
... of the modelled area showed that the Mercia Mudstone Group is strongly affected by the hydration of anhydrite to gypsum. Gypsification results in the disruption of the mudstone fabric, and is accompanied by expansive disruption, due to increased volume as anhydrite hydrates to gypsum, accompanied by fracturing...
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Journal Article
Published: 01 March 2001
Journal of Paleontology (2001) 75 (2): 463–465.
.... The bone is somewhat gypsified, and the ascending rami are badly crushed. Slight gypsification of the teeth may have enlarged their dimensions somewhat; we list uncorrected measurements below. Figure 1 —Dental morphology of remingtonocetids. 1 , Mandibles of Dalanistes ahmedi (RUSB 2521...
FIGURES
Journal Article
Published: 01 June 1984
Bulletin of Canadian Petroleum Geology (1984) 32 (2): 237–241.
... of the diapir. Folds occur on scales of 1 to 100 m in wavelength and are upright to strongly inclined; many are concordant to the diapir contact, whereas others are approximately radial. A con- sistent map pattern of folds was not evident. In most outcrops, gypsification and surficial slumping obscure the fold...
Journal Article
Journal: Clay Minerals
Published: 01 September 2009
Clay Minerals (2009) 44 (3): 319–326.
... of gypsification on engineering behavior of expansive clay . Journal of Geotechnical and Geoenvironmental Engineering , 126 , 538 – 542 . El-Sohby M.A. & El-Sayed A.R. ( 1981 ) Some factors affecting swelling of clayey soils . Geotechnical Engineering , 12 , 19 – 39 . Gromko...
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Journal Article
Published: 01 February 2012
Quarterly Journal of Engineering Geology and Hydrogeology (2012) 45 (1): 111–118.
... Conference on Soil Mechanics and Foundation Engineering, Rio de Janeiro , Vol. 1 . Balkema, Rotterdam , 53 – 56 . Hossain D. 2001 . Discussion on influence of gypsification on engineering behaviour of expansive clay . ASCE Journal of Geotechnical and Geoenvironmental Engineering , 127...
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Journal Article
Published: 01 June 1983
Journal of the Geological Society (1983) 140 (3): 401–411.
... by the gypsification of planar and domical stromatolites. This group finishes with a subaerial erosion surface which was developed over the whole basin. The Wichmann layer is one of the most extensive units of the basin. It is a conglomerate with carbonate and terrigenous pebbles and boulders that came from...
Journal Article
Journal: AAPG Bulletin
Published: 01 December 1960
AAPG Bulletin (1960) 44 (12): 1912–1920.
.... Petrol. Geol. , Vol. 29 , pp. 1596 – 1625 . Clarke , F. W. , 1924 , “ Data of Geochemistry ,” 5 ed. , U. S. Geol. Survey Bull. 770 . Conley , R. F. , and Bundy , W. M. , 1958 , “ Mechanism of Gypsification ,” Geoch. Cosmoch. Acta. , Vol. 15 , pp. 57 – 72 . Dellwig...
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Journal Article
Published: 16 December 2021
Quarterly Journal of Engineering Geology and Hydrogeology (2022) 55 (2): qjegh2020-170.
... . 2000 . Influence of gypsification on engineering behavior of expansive clay . Journal of Geotechnical and Geoenvironmental Engineering , 126 , 538 – 542 , https://doi.org/10.1061/(ASCE)1090-0241(2000)126:6(538) Basma , A.A. , Al-Homoud , A.S. and Malkawi , A.H . 1995...
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