1977
DOI: 10.3406/sgeol.1977.1517
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Minéraux argileux des formations glaciaires et de leur substratum dans le Précambrien supérieur de l'Adrar de Mauritanie, Afrique occidentale

Abstract: Die Tonfraktion eiszeitlicher Bildungen am Ende des Präkambriums präsentiert eine grosse mineralogische Vielfalt : Illit, Chlorit, Vermiculit, Smektit, Kaolinit, unregelmässige Wechsellagerungen und manchmal regelmässige. Der Einfluss der Diagenese kann im allgemeinen ausser Acht gelassen werden mit Ausnahme der porenreichen Sande, in denen sich sekundärer Kaolinit bilden konnte. Die Tonminerale, deren Vergesellschaftungen sich im Laufe der Zeit ändern, tragen dazu beijede sedimentäre Formation zu charakterisi… Show more

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Cited by 3 publications
(2 citation statements)
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“…Special efforts should be made to better identify the nature and character of Proterozoic and early Phanerozoic soils (e.g., McDonald 1980, Meyer 1987. Some Precambrian sediments and early Paleozoic show no extensive mineralogical changes related to metamorphism or burial diagenesis (e.g., Chamley et al 1978aChamley et al , 1980a, suggesting similar characters for interbedded paleosol clays. Some Precambrian sediments and early Paleozoic show no extensive mineralogical changes related to metamorphism or burial diagenesis (e.g., Chamley et al 1978aChamley et al , 1980a, suggesting similar characters for interbedded paleosol clays.…”
Section: Paleozoic Precambrianmentioning
confidence: 99%
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“…Special efforts should be made to better identify the nature and character of Proterozoic and early Phanerozoic soils (e.g., McDonald 1980, Meyer 1987. Some Precambrian sediments and early Paleozoic show no extensive mineralogical changes related to metamorphism or burial diagenesis (e.g., Chamley et al 1978aChamley et al , 1980a, suggesting similar characters for interbedded paleosol clays. Some Precambrian sediments and early Paleozoic show no extensive mineralogical changes related to metamorphism or burial diagenesis (e.g., Chamley et al 1978aChamley et al , 1980a, suggesting similar characters for interbedded paleosol clays.…”
Section: Paleozoic Precambrianmentioning
confidence: 99%
“…We know that a climatic signal is borne by clay assemblages in various series of early Mesozoic, Paleozoic (Millot 1964(Millot , 1970 and even late Proterozoic ages (e.g., Chamley et al 1978aChamley et al , 1980a. We know that a climatic signal is borne by clay assemblages in various series of early Mesozoic, Paleozoic (Millot 1964(Millot , 1970 and even late Proterozoic ages (e.g., Chamley et al 1978aChamley et al , 1980a.…”
Section: Pre-jurassicmentioning
confidence: 99%