Les minéraux argileux de l'Aptien supérieur du bassin d'Arzacq (Aquitaine)

Esquevin, Jacques; Kulbicki, Georges

doi:10.3406/sgeol.1963.1261

Cited by 4 publications

(2 citation statements)

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“…These data set up the question of the real possibility for recently deposited sedi~ ments to precipitate chlorite and corrensite in surficial conditions, as sometimes envisaged (e.g., Lucas 1962, Esquevin and Kulbicki 1963, Kubler 1973. Chlorite and corrensite are often located in central, more buried parts of evaporative basins (in Millot 1964Millot , 1970.…”

Section: Significance Of Chloritic Minerals In the Tyrrhenian Seamentioning

confidence: 90%

Clay Sedimentology

Chamley¹

1989

873

449

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Section: Significance Of Chloritic Minerals In the Tyrrhenian Seamentioning

confidence: 90%

Clay Sedimentology

Chamley¹

1989

873

449

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“…Chlorite/expandable clay mixed-layer minerals have been reported from a variety of environments and lithologies (Kubler, 1973). Corrensite has been found with evaporite rocks, in particular in Permo-Triassic evaporitic sequences (Lippmann, 1954(Lippmann, , 1956MartinVivaldi and MacEwan, 1957;Grim et at., 1960;Fournier, 1961;Maurel, 1962;Kubler, 1963;Kopp and Fallis, 1974), and with carbonates (Eardley et al, 1956;Bradley and Weaver, 1956;Peterson, 1961;Esquevin and Kulbicki, 1963). It commonly occurs in volcanogenic sequences and associated clastic sediments (Stephen and MacEwan, 1951;Kubler, 1973;Iijima and Utada, 1971;Wilson, 1971;Kubler et aL, 1974;Pevear and Whitney, 1982).…”

Section: Trioctahedral Clay Diagenesismentioning

confidence: 99%

Comparisons Between the Diagenesis of Dioctahedral and Trioctahedral Smectite, Brazilian Offshore Basins

Chang

Mackenzie

Schoonmaker

1986

Clays and clay miner.

142

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Abstract--Burial diagenetic reactions of di-and trioctahedral clay minerals were compared in Brazilian offshore, basinal sediment sequences of Cretaceous age. Originally dioctahedral smectite-rich shales of three basins --Potiguar, Ceara, and llha de Santana --exhibited the classical smectite-to-illite burial pattern. Trioctahedral clay-rich shales and trioctahedral clay-mineral cements in sandstones, however, showed a burial sequence of saponite to mixed-layer chlorite/saponite with progressive increase in the percentage of chlorite layers with increasing burial depth.The change from disordered to ordered interstratifications of chlorite/saponite occurred in the temperature range 60%-70~ at a vitrinite reflectance value of about 0.65. These values are lower than those found for the ordering of illite/smectite clays. Increasing substitution of Al for Si in tetrahedral sites, followed by fixation of interlayer hydroxide sheets was found to be the major chemical change promoting transformation of saponite to chlorite via corrensite.

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Signification Des Études Récentes Sur Les Roches Argileuses Dans l'INTERPRÉTATION Des Facies Sedimentaires (Y Compris Les Séries Rouges)

Millot

1967

Sedimentology

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SUMMARY The significance of recent studies on the argillaceous rocks in the interpretation of sedimentary facies (including the red beds) Attapulgite and sepiolite are clay minerals, neoformed in the alkaline chemical facies. The ions, Si, Al, Mg, which are necessary for authigenesis, are leached from the continent under humid tropical conditions. Lateritic profiles originate only on the continents. If erosion begins again, the siderolithic facies, which contains a great proportion of inherited kaolinite, succeeds the alkaline chemical facies. These two facies are mutually connected in space and time. The “red‐sandstone” facies consists of a reworking of altered rubidied sands, which originate in warm climates with alternating humid and dry seasons. It is the maintenance of erosion by living tectonics which determines the intensity of the alteration. The “bituminous‐coal” facies corresponds to conditions which are analagous to the previous periods, but more humid, with more intense subsidence and a higher general base level of erosion. Bituminous‐coal facies and red‐sandstone facies are characterized by the predominance of illite and are connected in time. In the geochemical cycle, detrital argillaceous series succeed the carbonated and saliferous facies. Under certain conditions, these chemical facies indue a positive transformation, i.e., aggradation under the influence of the confined environment. Thus, the detrital, transformed or neoformed clay minerals can be used as palaeogeographical or palaeoclimatical indicators

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Les minéraux argileux de l'Aptien supérieur du bassin d'Arzacq (Aquitaine)

Cited by 4 publications

References 0 publications

Clay Sedimentology

Clay Sedimentology

Comparisons Between the Diagenesis of Dioctahedral and Trioctahedral Smectite, Brazilian Offshore Basins

Signification Des Études Récentes Sur Les Roches Argileuses Dans l'INTERPRÉTATION Des Facies Sedimentaires (Y Compris Les Séries Rouges)

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