ALBERT

Note: Contents 1 Scope / G. Matthess 2 Polar Organic Substances and Their Role in the Water-Saturated and -Unsaturated Zones 2.0 Introduction / F.H. Frimmel 2.1 Isolation Procedures and Characterization Methods 2.1.1 Isolation and General Characterization of Organic Acids from Pore Water / F.H. Frimmel 2.1.2 Isolation and Characterization of Soil Humic Matter / W. Finger, B. Post and H. Klamberg 2.1.3 Isolation and Characterization of Organic Substancesin Ground Water and Sediments / F. Selenka and A. Hack 2.1.4 Chromatographie Characterization of the Acid-Soluble Part of Humic Substances / F.H. Frimmel 2.1.5 Spectroscopic Characterization of Humic Substances in the Ultraviolet and Visible Region and by Infrared Spectroscopy / G. Abbt-Braun 2.1.6 Temperature-Programmed/Time-Resolved Pyrolysis Field lonization Mass Spectrometry - a New Method for the Characterization of Humic Substances / H.-R. Schulten 2.1.7 Interpretation of the Pyrolysis Products of Isolated Humic and Fulvic Acids / G. Abbt-Braun 2.1.8 Characterization of Isolated Humic Material by 13C Nuclear Magnetic Resonance Spectroscopy /J. Buddrus and P. Burba 2.1.9 Characterization of Humic Substances Extracted by Organic Solvents / B. Post and H. Klamberg 2.2 Interaction of Inorganics with Humic Substances 2.2.1 Investigation of Metal Complexation by Polarography and Fluorescence Spectroscopy / F.H. Frimmel 2.2.2 Determination of Complexation Equilibria by the Ion-Exchange Method / W. Finger and H. Klamberg 2.2.3 Sorption of Metals on Humic Material / R. Becker and H. Klamberg 2.2.4 Interactions of Humic Substances with Iodine / K. G. Heumann and C. Reifenhäuser 2.2.5 Experiments on the Influence of Organic Ligands upon Kinetics of Feldspar Weathering / A. Petersen, G. Matthess and D. Schenk 2.3 Characterization of Some Organic Acids in the Subsurface of the Sandhausen Ecosystem / T. Cordt and H. Kussmaul 2.3.4 Organic Acids 2.3.5 Conclusions 3 Carbonate Systems 3.0 Introduction / E. Usdowski 3.1 Dissolution Kinetics in the Generation of Carbonate Ground Waters 3.1.1 Theoretical and Experimental Results of the Kinetics of Calcite Dissolution and Precipitation / W. Dreybrodt 3.1.2 Field Measurements and Laboratory Experiments on Calcite Dissolution Kinetics of Natural Porous Media / J. Baumann and H.D. Schulz 3.2 Field Studies on Subsurface Water of Selected Sites / B. Merkel and J. Grossmann 3.2.1 Pore Water Sampling in Carbonate Terrains 3.2.2 Variation of Inorganic Carbon in the Unsaturated Zone of a Carbonate Gravel System / L. Eichinger and B. Merkel 3.2.3 Isotope Geochemistry of the Subsurface Carbonate System in Sandhausen and Bocholt / H. Dörr, W. Leuchs, P. Obermann, W. Regenberg and C. Sonntag 3.2.4 Application of Stable Carbon and Sulfur Isotope Models to the Development of Ground Water in a Limestone-Dolomite-Anhydrite-Gypsum Area / K.W. Schaefer and E. Usdowski 3.2.5 A dissolution Front at the Contact of Sandsto Marly Limestone Aquifers / H.R. Langguth and R. Schulz 3.2.6 Carbonate Rock Dissolution Under Intermediate System Conditions / J. Michaelis 3.3 Alteration in Karst Systems 3.3.1 Mineralogy and Hydrogeochemistry of the Gypsum Karst of Foum Tatahouine, South Tunisia / W. Smykatz-Kloss, H. Hötzl and H. Kössl 3.3.2 Dedolomitization and Salt Formationin a Semi-Arid Environment / W. Smykatz-Kloss, and J. Goebelbecker 3.3.3 Transformation Processes in Paleokarst Sediments and Chemistry of Modern Waters in the Aladag Region, Turkey / M. Cevrini and W. Echle 4 Silicate Systems 4.0 Introduction / G. Matthess 4.1 Redox Reactions in the Subsurface 4.1.1 Anoxic Reaction Zones in an Aquifer Influenced by Increasing Nitrate and Sulfate Contents / W. Leuchs and P. Obermann 4.1.2 Nitrogen and Oxygen Isotopes as Indicators for Nitrification and Denitrification / H.-L. Schmidt, S. Voerkelius and A. Amberger 4.1.3 Redox Conditions and Microbial Sulfur Reactions in the Fuhrberger Field Sandy Aquifer / J. Böttcher, O. Strebet and W. Kölle 4.1.4 Influence of Fine-Grained Cover Beds on the Chemistry of Shallow Ground Water / G. Ebhardt and P. Fritsch 4.1.5 Hydrogeochemical Processes During the Passage of Surface Water and Ground Water Through Genetically Different Organic Sediments / H. Brühl, A. Moschick and H. Verleger 4.1.6 Hydrochemical Phenomena in the Dorsten Leakage System / M. Hoffmann, H.R. Langguth and J. Larue 4.1.7 Hydrogeochemical Processes in the Hamburg Deep Aquifer System / E.P. Loehnert, W. Bauhus and C. Sonntag 4.2 Rock-Water Interaction 4.2.1 Aluminium Speciation in Acid Soil Water and Ground Water / G. Dietze and B. Ulrich 4.2.2 Mineral-Pore Water Interaction in Two Soil Types on Pleistocene Sediments at Hamburg / F. Sztuka and I. Valeton 4.2.3 Subsurface Hydrochemical Reactions in the Sandhausen Forest Ecosystem / H. Jacob, W. Regenberg and C. Sonntag 4.3 Reaction Kinetics 4.3.1 Experimental Methods for Determining Dissolution Rates of Silicates - a Comparison / D. Schenk, G. Matthess, A. Dahmke and A. Petersen 4.3.2 Field Studies on the Kinetics of Silicate Minerals/Water Interaction / G. Matthess, A. Petersen, D. Schenk and A. Dahmke 5 Microbiology 5.0 Introduction / P. Hirsch 5.1 Characterization of the Natural Subsurface Environment 5.1.1 Morphological and Taxonomic Diversity of Ground Water Microorganisms / P. Hirsch, E. Rades-Rohkohl, J. Kölbel-Boelke and A. Nehrkorn 5.1.2 Methods of Studying Ground Water Microbiology: Critical Evaluations and Method suggestions / P. Hirsch, E. Rades-Rohkohl, J. Kölbel-Boelke, A. Nehrkorn, R. Schweisfurth, F. Selenka and A. Hack 5.1.3 Organic Substances in Ground Water and Sediments and Their Relationships to Microorganisms in a Sandy Aquifer / E Selenka and A. Hack 5.2 Microbial Activities 5.2.1 Observations on the Physiology of Microorganisms from Pristine Ground Water Environments / P. Hirsch 5.2.2 Formation and Transformation of Manganese Oxidation States by Bacteria / J. Gottfreund and R. Schweisfurth 5.2.3 Interactions Between Humic Acids and Microorganisms / G.-J. Tuschewitzki, B. Langer and H. Otremba 5.3 Microbiology of Selected Locations 5.3.1 Subsurface Microbial Activities in the Sandhausen Forest Ecosystem / R. Weyandt and R. Schweisfurth 5.3.2 Heterotrophic Bacterial Communities in the Bocholt Aquifer System / J. Kölbel-Boelke and A. Nehrkorn 5.3.3 The Natural Microflora of the Segeberger Forest Aquifer System / P. Hirsch and E. Rades-Rohkohl 5.3.4 Microbiological Observations of the Unsaturated Zone of a Quaternary Gravel Profile / I. Alexander, G. Freitag, J. Grossmann, Β. Merkel, P. Udluft and I. Ullsperger 6 Hydrogeochemical and Geochemical-Hydraulic Models and Model Concepts 6.0 Introduction / H.-D. Schulz 6.1 Hydrogeochemical Models and Concepts 6.1.1 Development of Secondary Permeability of a Fracture Aquifer in Carbonate Rocks: a Model / W. Dreybrodt 6.1.2 Some Aspects of Modelling the Carbon System in the Unsaturated Zone / B. Merkel, L. Eichinger and P. Udluft 6.1.3 Methodical Concepts in Silicate-Water Interaction - a Comparison of Results / A. Dahmke, G. Matthess, A. Petersen and D. Schenk 6.2 Combination of Transport and Geochemical Reactions 6.2.1 Water Movement and Geochemical Reactions in the Unsaturated Zone of Sands with Low Calcite Contents / H.-D. Schulz 6.2.2 Physical and Biochemical Processes Affecting Mass Transport in the Bocholt Aquifer System / C. Bugner and R. Mull 6.2.3 Tritium and 3He Measurements as Calibration Data for Ground Water Transport Models / H. Dörr, P. Schlosser, M. Stute and C. Sonntag 6.2.4 39Ar-, 85Kr-, 3He- and 3H Isotope Dating of Ground Water in the Bocholt and Segeberger Forst Aquifer Systems / M. Forster, H. Loosli and S. Weise 6.2.5 Modelling of Mass Balance and of Microbial Transformations in the Fuhrberger Feld Sandy Aquifer / O. Strebet, J. Böttcher and W.H.M. Duynisveld 6.3 Description of Geochemical Environments with Thermodynamic Equilibrium Models / M. Rolling and H.-D. Schulz 6

Note: TABLE OF CONTENTS: CHAPTER 1 INTRODUCTION. - CHAPTER 2 SUBGLACIAL AND ICE MARGINAL ENVIRONMENTS. - GLACIOLOGY. - Glacier Form. - Mountain glaciers. - Ice sheets. - Tidewater. - Glacier Mass Balance. - Glacier Thermal Regime. - Glacier Flow. - Internal Deformation. - Basal Sliding. - Flow Velocities. - Complex Motion. - Compressing and Extending Flow. - DEBRIS ENTRAINMENT AND DISTRIBUTION. - Subglacial Erosional Processes. - Abrasion. - Abrasion Forms. - Plucking. - Large-scale Block Removal. - Frontal Incorporation. - Supraglacially Derived Debris. - Debris Distribution and Transport. - The Basal Zone. - The Englacial Zone. - The Supraglacial Zone. - TILL. - Introduction. - Lodgement till. - Melt-out till. - Sublimation till. - GLACIGENIC MASS-FLOW DEPOSITS. - Debris Flow Deposits. - Talus Deposits. - Free Fall Deposits. - AQUEOUS DEPOSITS IN THE GLACIAL ENVIRONMENT. - Subglacial Aqueous Environments. - Drainage Characteristics. - Subglacial Sheet Flow Deposits. - Subglacial Channel Deposits. - Subglacial Lacustrine Deposits. - Englacial and Supraglacial Aqueous Environments. - SEDIMENT LANDFORM RELATIONSHIPS. - Subglacial Landsystems. - Supraglacial Landsystems. - Ice-Marginal Landsystems. - REFERENCES. - CHAPTER 3 PROGLACIAL FLUVIAL ENVIRONMENT. - INTRODUCTION. - PHYSICAL CHARACTERISTICS OF SANDAR. - Hydrology. - Sediment Load. - Morphology. - Clast Size and Gradient. - Channel Pattern. - STRATIFICATION AND SEDIMENTARY FACIES. - General. - Proximal-Distal Facies Relationships. - Vertical Sequences. - REFERENCES. - CHAPTER 4 PROGLACIAL LACUSTRINE ENVIRONMENT. - PHYSICAL PROCESSES. - INTRODUCTION. - DENSITY STRATIFICATION IN LAKES. - Thermal Structure. - Chemical Stratification. - NON-CONTACT (DISTAL) GLACIER-FED LAKES. - General. - Delta Formation. - Inflow-Lake Interaction. - Overflow. - Interflow. - Underflow. - Homopvcnal Mixing. - Relation of Inflow to Lake Sedimentation Rates. - ICE-CONTACT LAKES. - Thermal Effects. - Subaqueous Inflow. - Ice-Margin Deposition. - Icebergs. - Ephemeral Nature of Ice-Contact Lakes. - DEPOSITS. - INTRODUCTION. - INDIVIDUAL DISPERSAL MECHANISMS. - Overflow-Interflow Deposits. - Underflow Deposits. - Upper Delta Foresets. - Mid-Delta Foresets. - COMBINATION OF DISPERSAL MECHANISMS. - Lower Dllta Foresets. - Lake Bottom Deposits. - Annual Rhythmites Vs. Slump-Generated Rhythmites. - LAKE STRATIFICATION AND SEDIMENTATION. - Unstratified Lakes. - Stratified Lakes. - ICE-CONTACT LAKES VS. DISTAL LAKES: SUMMARY. - Ice-Contact Lake Deposits. - Distal Lake Deposits. - SPATIAL AND TEMPORAL VARIATION IN SEDIMENTATION. - Spatial Variation. - Temporal Variation. - REFERENCES. - CHAPTER 5 PROGLACIAL EOLIAN ENVIRONMENT. - INTRODUCTION. - EOLIAN PROCESSES AND SEDIMENTARY STRUCTURES. - Processes. - Sedimentary Structures. - Wind Ripple Migration. - Grainfall. - Avalanching (Slumps and Sand Flow). - Bedding. - ENVIRONMENTS OF DEPOSITION. - Dune. - Interdune Area. - Sand Sheet. - Extradune Area and Loess. - SUMMARY. - REFERENCES. - CHAPTER 6 REGIONAL FACIES DISTRIBUTION IN TEMPERATE CONTINENTAL-GLACIER DEPOSITS. - REFERENCES. - GLOSSARY.

Note: CONTENTS Abstract Preface Summary Introduction Description of the model Ice thickness equations Heat budget and oceanic boundary layer Analytic examination of the ridge redistribution process Theoretical framework Some specific redistributors Comparison to ridge morphological data Ice strength for different redistributors Numerical simulation results Basin-wide ice thickness and velocity characteristics Ice edge evolution and sensitivity Ice thickness characteristics off the Canadian Archipelago Comparison of observed and simulated ice drift Mass balance characteristics Concluding remarks Literature cited Appendix A: Mechanical redistributor Appendix B: Heat budget code Appendix C: Thickness finite difference code