Manganese oxide patterns known as “pyrolusite dendrites” are explained as the result of the mineral record of flow structures in porous media. This interpretation is supported by a) fractal characterization, b) Mn profiles across the mineral pattern and the matrix rocks, c) structures reminiscent of flow pattern observed at the scale of the grain size of the matrix rocks, d) the lack of long-range order of the manganese oxide particles and e) the existence of clays and quartz grains of colloidal size intimately linked to the manganese particles. This interpretation also explains other fractal and non-fractal patterns accompanying the beautiful treelike fractal forms associated with these manganese oxide patterns.
Weitere Kapitel dieses Buchs durch Wischen aufrufen
- The Formation of Manganese Dendrites as the Mineral Record of Flow Structures
Juan M. García-Ruiz
Francisco J. Higes-Rolando
- Springer Berlin Heidelberg