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Title: Process-based forward numerical ecological modeling for carbonate sedimentary basins
Author: Clavera-Gispert, Roger
Gratacós Torrà, Òscar
Carmona Bardella, Ana
Tolosana-Delgado, R.
Keywords: Conques sedimentàries
Successió ecològica
Roques calcàries
Sedimentary basins
Ecological succession
Carbonate rocks
Issue Date: Jan-2017
Publisher: Springer Nature
Abstract: Nowadays, numerical modeling is a common tool used in the study of sedimentary basins, since it allows to quantify the processes simulated and to determine interactions among them. One of such programs is SIMSAFADIM-CLASTIC, a 3D forward-model process-based code to simulate the sedimentation in a marine basin at a geological time scale. It models the fluid flow, siliciclastic transport and sedimentation, and carbonate production. In this article, we present the last improvements in the carbonate production model, in particular about the usage of Generalized Lotka-Volterra equations that include logistic growth and interaction among species. Logistic growth is constrained by environmental parameters such as water depth, energy of the medium, and depositional profile. The environmental parameters are converted to factors and combined into one single environmental value to model the evolution of species. The interaction among species is quantified using the community matrix that captures the beneficial or detrimental effects of the presence of each species on the other. A theoretical example of a carbonate ramp is computed to show the interaction among carbonate and siliciclastic sediment, the effect of environmental parameters to the modeled species associations, and the interaction among these species associations. The distribution of the modeled species associations in the theoretical example presented is compared with the carbonate Oligocene-Miocene Asmari Formation in Iran and the Miocene Ragusa Platform in Italy.
Note: Versió postprint del document publicat a:
It is part of: Computational Geosciences, 2017, vol. 21, num. 3, p. 373-391
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ISSN: 1420-0597
Appears in Collections:Articles publicats en revistes (Dinàmica de la Terra i l'Oceà)

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