The deterministic variant of the Kardar-Parisi-Zhang equation for the evolu
tion of a growing interface is used to model patterning produced by success
ive laminations in certain stromatolites. Algebraic solutions of the model
together with numerical simulations are employed to fit model parameters co
nsistent with digital recordings of individual stromatolite laminae. Numeri
cal values for model parameters, related to lateral growth, vertical growth
and surface diffusion, provide a set of indices which may prove useful for
classifying different stromatolites. (C) 2000 Elsevier Science B.V. All ri
ghts reserved.