caa a22 4500 477064051 CHVBK 20180405111407.0 cr unu---uuuuu 170330e19960301xx s 000 0 eng 10.1007/BF00192057 doi (NATIONALLICENCE)springer-10.1007/BF00192057 Self-organization of recent rhythmic iron-manganese precipitations in underground mines in the Harz mountains [Elektronische Daten] [S. Dietrich, K. Jacob] A recent early diagenetic banded iron-manganese mud has been forming underground in a closed lead-zinc mine for approximately 40 years. The processes leading to the banded structure of the precipitate were studied during a period of 2 years. Therefore, 19 physical and chemical parameters were measured regularly in short intervals. The resulting time series were analysed with respect to the data sets of the monthly chemical analyses of the descendent mine water, the daily rainfall and the mineral content. The results reveal that the precipitated material undergoes internal self-organization due to interaction of redox, colloid-chemical, microbial, electrical and ripening processes, and not exclusively produced by seasonal fluctuations of material input. Thus, the primary banding of the material, caused by externally forced fluctuations of the redox conditions within the mine water, is reorganized after a short time. The finally observed bands are controlled by non-linear coupling of reaction and transport processes within the mud. A genetic model for the banded mineralization was developed and verified by numerical simulation. Springer-Verlag, 1996 Banded mineralization nationallicence Harz mountains nationallicence Self-organization nationallicence Iron, manganese, ferrihydrite, birnessite nationallicence Time-series analysis nationallicence Aquatic systems nationallicence Iron bacteria nationallicence Ostwald ripening nationallicence Dietrich S. Fachgebiet Lagerstättenforschung, Technische Universität Berlin, Ernst-Reuter-Platz 1, D-10587, Berlin, Germany aut Jacob K. Fachgebiet Lagerstättenforschung, Technische Universität Berlin, Ernst-Reuter-Platz 1, D-10587, Berlin, Germany aut Geologische Rundschau Springer-Verlag 85/1(1996-03-01), 29-37 0016-7835 85:1<29 1996 85 531 https://doi.org/10.1007/BF00192057 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00192057 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dietrich S. Fachgebiet Lagerstättenforschung, Technische Universität Berlin, Ernst-Reuter-Platz 1, D-10587, Berlin, Germany aut NATIONALLICENCE 700 1- Jacob K. Fachgebiet Lagerstättenforschung, Technische Universität Berlin, Ernst-Reuter-Platz 1, D-10587, Berlin, Germany aut NATIONALLICENCE 773 0- Geologische Rundschau Springer-Verlag 85/1(1996-03-01), 29-37 0016-7835 85:1<29 1996 85 531 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer