Tard Clay Formation

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Journal Article
Published: 01 January 1995
Petroleum Geoscience (1995) 1 (1): 81–87.
... (Tard Clay Formation) and are the best oil-prone source rocks of the Oligocene sequence. Although oil discoveries were made in the basin in the late 1930s, exploration was prevented by the complicated tectonics. Currently, detailed seismic, geological and geochemical studies have been initiated...
Series: Proceedings of the International Clay Conference, Proceedings of the International Clay Conference
Published: 01 January 1985
DOI: 10.1346/CMS-ICC-1.6
EISBN: 9781881208396
... Abstract Dehydration isotherms of five smectites and one vermiculite saturated with Na, K, Mg, and Ca were used to calculate the hydration energies of clay minerals in different water-activity and cation-exchange conditions. As the water activity decreased, differences in hydration energies...
Journal Article
Journal: Clay Minerals
Published: 01 June 1982
Clay Minerals (1982) 17 (3): 339–348.
Journal Article
Published: 01 June 1979
American Mineralogist (1979) 64 (5-6): 626–634.
... on the correction of the additional term so that the Gibbs free energies of formation and the fields of stability of the phosphates and clay minerals would be in good agreement with the natural observed sequence. These estimations yield the following values (kcal/mole): Fluor-carbonate-apatite, Ca 10 ( PO 4 ) 5 CO...
Journal Article
Published: 01 June 1996
Bulletin of Canadian Petroleum Geology (1996) 44 (2): 165–179.
... is a controlling factor in the formation and development of triangle zones. Type I triangle zones form over very weak décollements, such as evaporites. Type II triangle zones have three mechanical units: a duplex in relatively strong units, overlain by a cover sequence in weaker rocks separated by a roof...
Journal Article
Published: 01 March 1990
Bulletin of Canadian Petroleum Geology (1990) 38 (1): 64–77.
... of the various ions required for the early diagenetic formation of these concret ions are varied. Magnesium for dolomite could have been supplied by advec- tion or diffusion from the overlying seawater, or from clay minerals, biogenic silica, organic matter, interstitial water, and solution cannibalization of Mg...
Journal Article
Published: 01 September 2017
Bulletin of Canadian Petroleum Geology (2017) 65 (3): 343–365.
...Luc E. Chabanole; Luis A. Buatois Abstract The Bakken Formation (Upper Devonian-Lower Mississippian) of western Saskatchewan has lower and upper members dominated by black shales and a heterolithic middle member, similar to southeastern Saskatchewan and North Dakota. However, the middle member...
FIGURES | View All (20)
Journal Article
Published: 01 September 1997
Bulletin of Canadian Petroleum Geology (1997) 45 (3): 297–316.
...Todd White; Ihsan S. Al-Aasm ABSTRACT The Mississippian carbonates of the Upper Debolt Formation, Sikanni Field, British Columbia, are gas-producing, fractured and brecciated, dolomitized rocks. These rocks have undergone complex diagenetic changes, represented mainly by various generations...
Journal Article
Journal: Economic Geology
Published: 01 September 2016
Economic Geology (2016) 111 (6): 1439–1463.
... H 2 S present in the water column that this H 2 S contributed to the sulfur budget of the deposit. Furthermore, the Mo-U and C org -Ni systematics favor deposition in a restricted basin (i.e., nutrient trap) where restriction of the water column led to H 2 S formation via sulfate reduction...
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Journal Article
Journal: Economic Geology
Published: 01 June 2016
Economic Geology (2016) 111 (4): 963–1000.
... Formation, has the potential to lead to discovery of deeply buried deposits on the Flin Flon horizon or deposits at higher stratigraphic levels. Our findings indicate that the basaltic hanging wall on the Flin Flon-777-Callinan hydrothermal system was an efficient cap on the system, with vestiges...
FIGURES | View All (21)
Journal Article
Published: 01 October 2008
The Canadian Mineralogist (2008) 46 (5): 1249–1268.
....). Środon , J. ( 1999 ): Nature of mixed-layer clays and mechanisms of their formation and alteration . Annu. Rev. Earth Planet. Sci . 27 , 19 – 53 . Stille , P. & Clauer , N. ( 1994 ): The process of glauconitization: chemical and isotopic evidence...
FIGURES | View All (12)
Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2001
DOI: 10.1144/GSL.SP.2001.189.01.03
EISBN: 9781862394377
... on the Precambrian basement. The clay of the Kotlin Formation serves as an upper confining unit. In northern Estonia, the conductivity of water-bearing rocks is 0.5–9.2 m d −1 , average 5–6 m d −1 . Transmissivity in northeastern Estonia is 300–350 m 2 d −1 ; decreasing in southerly and westerly directions to <...
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Journal Article
Journal: Geology
Published: 01 May 2003
Geology (2003) 31 (5): 415–418.
... . Gessmann , C. , and Wood , B.J. , 2002 , Potassium in the Earth's core? : Earth and Planetary Science Letters , v. 200 p. 63 - 78 . Hale , C.J. , 1987 , The intensity of the geomagnetic field at 3.5 Ga: Paleointensity results from the Komati Formation, Barberton Mountain Land, South...
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Journal Article
Published: 01 January 2007
Geological Magazine (2007) 144 (1): 1–19.
... sandstones and benthonitic clays of the Kannaviou Formation ( Lapierre, 1968 ; Ealey & Knox, 1975 ; Robertson, 1977 ) which becomes tectonically overlain by a structural complex made of serpentinized harzburgite on which rest the Late Triassic to Late Cretaceous volcanic rocks and sediments...
FIGURES | View All (12)
Journal Article
Published: 01 September 1999
Bulletin of Canadian Petroleum Geology (1999) 47 (3): 223–254.
... (Sélandien), jusqu’au moins la fin de l’Éocène. Ces phases impliquent l’emplacement simultané de un ou plusieurs panaches magmatiques provenant d’un point chaud en migration, en premier lieu au Groenland Ouest, plus tard sous le Groenland Est, et finalement sous l’Atlantique Nord et l’Islande ancestrale. La...
Journal Article
Published: 01 December 1984
Bulletin of Canadian Petroleum Geology (1984) 32 (4): 434–464.
... successifs sont un étage post-minerai , comprenant la fracturation et la remobilisation des sulphides, la dolomitisation et le replacement, et le développement de calcite fibreux, calcite d’étage tard; la migration continuée de bitumen; et les processus d’étages ultimes comprenants le développement local de...
Journal Article
Published: 01 March 1987
Bulletin of Canadian Petroleum Geology (1987) 35 (1): 24–33.
... d’alluvionnement. L’interaction entre la migration latérale, l’érosion et la subsidence eut comme conséquence l’accumulation de lentilles accrétives, reposant sur des surfaces d’érosion coupant des lentilles déposées sur la rive convexe de méandres préexistants. Des complexes formés plus tard coupent jusqu’à près...
Journal Article
Published: 01 December 1993
Bulletin of Canadian Petroleum Geology (1993) 41 (4): 453–463.
... conséquent. après le rétablissement de la progression stationnaire du rivage vers la mer, les couches littorales LS1 ont été déposées au-dessus de la limite séquentielle. La progradation a causé le déplacement de la côte au-delà de la limite nord de la région étudiée. Plus tard, mais toujours pendant la...
Journal Article
Published: 01 June 1990
Bulletin of Canadian Petroleum Geology (1990) 38 (2): 246–258.
... surpression. Il est prédit que cette dernière diminua, de concert avec les taux de sédimentation, à travers le Crétacé supérieur et le Tertiaire, jusqu’à la reprise de taux de sédimentation plus élevés durant les dernières 15 Ma. Ce récent accroissement des taux donne naissance à la surpression tard dans...
Journal Article
Published: 01 May 2014
Bulletin de la Société Géologique de France (2014) 185 (5): 343–356.
..., and never is present in tectonic units originated from the oceanic area located west of that margin; 2) in the axial zone of the Lagonegro basin it stratigraphically follows a formation consisting of varicoloured clays ( Argille Varicolori Auct .); 3) its age is limited to the early-middle Langhian...
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