Recent Developments in Carbonate Sedimentology in Central Europe

In the field of sedimentary research, ever increasing emphasis has been put on the investigations of carbonates and carbonate rocks during the past 30 years. It is thus quite natural that in Central Europe - where c1assical carbonate in­ vestigations have already been carried out 100 years ago - numerous scholars turned to the study of this sediment type. On the occasion of a visiting professorship of G. M. FRIEDMAN at the Labora­ torium für Sedimentforschung, Heidelberg University, a seminar on "Recent Developments of Carbonate Sedimentology in Central Europe" was held in July 1967. 90 persons involved in carbonate investigations participated, and 35 lectures were held. The present volume contains 30 papers summarizing the different subjects of the seminar. Of course these contributions only represent a small part of the work actually performed in the field of carbonate research in Central Europe. We believe, however, that they give a general survey of the work and the working methods employed in the different sectors of carbonate investigations. One of the purposes of the present symposium is to acquaint the English speaking countries with our recent results which usually - due to the language barrier - are not accessible to them.

A. Processes of Carbonate Formation and Diagenesis.- Precipitation of Oöids and Other Aragonite Fabrics in Warm Seas.- The Fabric of Carbonate Cement and Matrix and its Dependence on the Salinity of Water.- The Formation of Dolomite in Sediments.- Syntheses of BaMg(CO3)2 (Norsethite) at 20 °C and the Formation of Dolomite in Sediments.- Dolomitization of Biocalcarenites of Late-Tertiary Age from Northern Lanzarote (Canary Islands).- Some Notes on the Insoluble Residues in Limestones.- Relationship Between Carbonate Grain Size and Non-Carbonate Content in Carbonate Sedimentary Rocks.- Experimental Compaction of Carbonate sediments.- Stylolitization in Carbonate Rocks.- Analysis of Pressure-Solution Contacts and Classification of Pressure-Solution Phenomena.- B. Microtexture and Microporosity of Carbonate Rocks.- Review on Electron Microscope Studies of Limestones.- Microporosity of Carbonate Rocks.- C. Geochemistry of Carbonates and Carbonate Rocks.- Outlines of Distribution of Strontium in Marine Limestones.- Exceptionally High Strontium Concentrations in Fresh Water Onkolites and Mollusk Shells of Lake Constance.- Ca-Mg-Distribution in Carbonates from the Lower Keuper in NW-Germany.- Proof and Significance of Amino Acids in Upper-Jurassic Algal-Sponges-Reefs of the Swabian Alb (SW-Germany).- Geomicrobiology and Geochemistry of the “Nari-Lime-Crust” (Israel).- D. Regional Carbonate Petrology.- I. Freshwater Carbonates and Carbonate Rocks.- Recent Carbonate Sedimentation in the Gnadensee (Lake Constance), Germany.- Mineralogy, Petrology and Chemical Composition of Some Calcareous Tufa from the Schwäbische Alb, Germany.- II. Marine Carbonate Rocks.- Tidal Flat Deposits in the Ordovician of Western Maryland.- Origin and Diagenesis of the Oriskany Sandstone (Lower Devonian, Appalachians) as Reflected in its Shell Fossils.- Facies Types in Devonian Back-Reef Limestones in The Eastern Rhenish Schiefergebirge.- Carbonate Sedimentation and Subsidence in the Zechstein Basin (Northern Germany).- The Bioclastic Limestones of the “Trochitenkalk” (Upper Muschelkalk) in SW Germany.- Sedimentological and Biological Characteristics of a Dachsteinkalk Reef Complex in the Upper Triassic of the Northern Calcareous Alps.- Sedimentological Investigation of the Ladinian “Wettersteinkalk” of the “Kaiser Gebirge” (Austria).- Sedimentary Petrologic Investigation of the Upper Triassic “Hauptdolomit” of the Lechtaler Alps, Tyrol, Austria.- Calcareous Sea Bottoms of the Raetian and Lower Jurassic Sea from the West Part of the Northern Calcareous Alps.- Ecology of Algal-Sponge-Reefs in the Upper Jurassic of the Schwäbische Alb, Germany.- E. Applied Carbonate Petrology.- Continuous Gasometric Carbonate Determinations in Cuttings from Drill Holes.