Hydrogeologic facies models to delineate large-scale spatial trends in glacial and glaciofluvial sediments

Abstract

Research Article| April 01, 1989 Hydrogeologic facies models to delineate large-scale spatial trends in glacial and glaciofluvial sediments MARY P. ANDERSON MARY P. ANDERSON 1Department of Geology and Geophysics, University of Wisconsin-Madison, Madison, Wisconsin 53706 Search for other works by this author on: GSW Google Scholar Author and Article Information MARY P. ANDERSON 1Department of Geology and Geophysics, University of Wisconsin-Madison, Madison, Wisconsin 53706 Publisher: Geological Society of America First Online: 01 Jun 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Geological Society of America GSA Bulletin (1989) 101 (4): 501–511. https://doi.org/10.1130/0016-7606(1989)101<0501:HFMTDL>2.3.CO;2 Article history First Online: 01 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Search Site Citation MARY P. ANDERSON; Hydrogeologic facies models to delineate large-scale spatial trends in glacial and glaciofluvial sediments. GSA Bulletin 1989;; 101 (4): 501–511. doi: https://doi.org/10.1130/0016-7606(1989)101<0501:HFMTDL>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract Recent interest in contaminant transport in ground water has led hydrogeologists to the conclusion that predicting the movement of solutes requires information on the distribution of spatial trends and heterogeneities in porous media. Description of spatial trends has long been of interest to sedimentologists who have produced a large body of geologic information on the subject. In this paper, facies models are used to construct conceptual models of hydrogeologic facies for glacialmeltwater-stream sediment and till. These hydrogeologic facies models, which delineate large-scale trends in heterogeneity, are appropriate for use in designing hydrogeologic field tests and for estimating input to regional ground-water flow and transport models. This paper treats each facies as a homogeneous, anisotropic hydrogeologic unit. The models presented herein conceptualize the hydrogeologic relationships among facies and illustrate one method of converting the apparent chaos in nature into an orderly system that can be tested scientifically and modeled mathematically.The principles used to create conceptual models of hydrogeologic facies for the types of sediment considered in this paper can be extended to other sedimentary environments. It should be recognized, however, that such models do not address the small-scale heterogeneity present within individual facies. Additional basic research is required to measure hydraulic conductivity variation within representative hydrogeologic facies and to develop statistical descriptions to represent the variations. Such detailed descriptions of hydraulic conductivity may be necessary to describe ground-water flow at a local scale for analysis of contaminant transport. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.