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Dakota Aquifer Program--Geologic Framework

Stochastic Modeling of the Dakota Sandstone in central Kansas Using Architectural Element Analysis

by John Holbrook, Timothy Ray, Yuzhi Cui and M. D. Raghunath

Original publication date November 25, 1995.


To develop a high-resolution model for aquifer heterogeneity in the Terra Cotta Clay Member of the central Kansas Dakota Formation, a detailed study of the architectural elements prevailing in the outcrop region of the aquifer was conducted. On the basis of the information collected during this field study, a stochastic model was developed to characterize lithic heterogeneity within the sedimentary basin.

To simulate the stratigraphy of the Dakota aquifer in central Kansas, twenty-nine outcrops of the Dakota Sandstone in central Kansas were studied, and the data was put into the stochastic growth model, which produced a set of likely basin configurations. This preliminary report presents our results, and previews the work that will be accomplished during the second year of the project.

Table of Contents


Stratigraphic and depositional setting of Dakota Formation



Generation of the output model

More on Model generation

Field observations and discussion--Rocktown Channel Exposures

Field observations and discussion--Terra Cotta Clay Member at Kanapolis Lake

Future of the model


Appendix D--Architectural elements and lithofacies classification

Appendix E--Field and output models

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