Pierre Freytet; Jean-Claude Plaziat:

Continental Carbonate Sedimentation and Pedogenesis - Late Cretaceous and Early Tertiary of Southern France

1982. 213 pages, 59 figures, 49 plates, 16x24cm, 500 g
Language: English

(Contributions to Sedimentary Geology, Volume 12)

ISBN 978-3-510-57012-6, paperback, price: 63.00 €

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Content Description top ↑

During Late Cretaceous and Early Tertiary times, SW Europe was characterized by a rapidly evolving paleogeography related to the formation of the Pyrenean Chain. Although, on a world-wide scale, marine sedimentation was widespread, much of France and the adjacent countries were exposed repeatedly to long periods of erosion and continental molassic sedimentation. These continental sediments frequently exceed 2,000 m in thickness. The environmental interpretation and the paleogeography of these continental deposits is the subject of this publication.

European continental sediments, in general, have already been studied extensively, and the Devonian "Old Red Sandstone" of Britain, the Permian "Rotliegendes" of NW Europe, the German Triassic ("Buntsandstein"), and the Swiss Tertiary Molasse are well known.

This present study of Late Cretaceous-Early Tertiary continental facies has been undertaken mainly because these sediments have many aspects which differ fundamentally from themore classical continental deposits of W Europe. For example, the detrital continental facies described are nearly always calcareous and include thick sequences of relatively pure lacustrine limestones. In this respect they contrast with the essentially siliceous components of the above mentioned continental deposits.

Contents top ↑

1. Introduction and paleogeographic setting 1
General lay-out — Principal areas studied — Paleogeographic setting (Main
paleogeographic events in the Pyreneo — Provençal Basin, Paleogeography of the Languedoc region: sedimentary trends)
2. Detrital sedimentary components 14
Importance of detrital carbonate — Nature of the detrital components within the major sedimentary environments
3. Non-detrital sediments and biogenetic components 26
Non-detrital sediments and minerals (Lacustrine limestones, Dolomites and dedolomites, Gypsum, Silica) — Biogenetic components
4. Pedogenesis and paleosols 50
The notion of soil and paleosol — Pédologie neostratification: superposition and interference of pedogenesis — The principal elements of paleosols — The principal types of paleosols in Languedoc — Particular carbonate structures of the "Mourres", Oligocene of the Manosque Basin — Carbonate segregations and palustrine limestones versus calcretes (caliches) — Particular problems: red colour, rarity of gleys and influence of diagenesis
5. Environmental sequences in molassic continental basins 80
Elementary terms and their environmental significance — Elementary sequences —
Mega-environmental sequences and regional history
6. Conclusions 92
Glossary of pedological terms/References/Index/Plate 1-49 93-214