Morphogenesis in stromatolites refers to the pattern of development that creates a megascopic laminated form through repeated cycles of sediment accretion. In general, all sedimentary laminations reflect periodic interruptions in deposition. For example, in stromatolites formed in detrital sedimentary systems, laminations may arise through variations in current velocity and rates of sedimentation (Farmer and Des Marais 1993). In mineralizing sedimentary systems, laminae may form by fluctuations of temperature, pH, or saturation (Guo and Riding 1992), or by seasonal growth cycles of organisms (Chafetz et al. 1991). Laminations can also originate by post-depositional (diagenetic) processes, such as dissolution (Ekdale and Bromley 1988).
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- Biological versus inorganic processes in stromatolite morphogenesis: Observations from mineralizing sedimentary systems
Jack D. Farmer
David J. Des Marais
- Springer Berlin Heidelberg