Author's Accepted Manuscript Mathematical algorithm development and parametric studies with the GEOFRAC three- dimensional stochastic model of natural rock fracture systems Violeta M. Ivanova, Rita Sousa, Brian Murrihy, Herbert H. Einstein PII: S0098-3004(13)00302-6 DOI: http://dx.doi.org/10.1016/j.cageo.2013.12.004 Reference: CAGEO3305 To appear in: Computers & Geosciences Cite this article as: Violeta M. Ivanova, Rita Sousa, Brian Murrihy, Herbert H. Einstein, Mathematical algorithm development and parametric studies with the GEOFRAC three-dimensional stochastic model of natural rock fracture systems, Computers & Geosciences, http://dx.doi.org/10.1016/j.cageo.2013.12.004 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. www.elsevier.com/locate/cageo