University of SaskatchewanHARVEST
  • Login
  • Submit Your Work
  • About
    • About HARVEST
    • Guidelines
    • Browse
      • All of HARVEST
      • Communities & Collections
      • By Issue Date
      • Authors
      • Titles
      • Subjects
      • This Collection
      • By Issue Date
      • Authors
      • Titles
      • Subjects
    • My Account
      • Login
      JavaScript is disabled for your browser. Some features of this site may not work without it.
      View Item 
      • HARVEST
      • Electronic Theses and Dissertations
      • Graduate Theses and Dissertations
      • View Item
      • HARVEST
      • Electronic Theses and Dissertations
      • Graduate Theses and Dissertations
      • View Item

      Structure and petrology of the Gypsumville gypsum deposit

      Thumbnail
      View/Open
      Hoque_Monirul_1967_sec.pdf (39.71Mb)
      Date
      1967
      Author
      Hoque, Monirul
      Type
      Thesis
      Degree Level
      Masters
      Metadata
      Show full item record
      Abstract
      The Gypsumville sulphate deposit is approximately 130 feet thick and overlies a sequence of red and grey shales. The upper 40 or 50 feet is composed mainly of well-stratified gypsum, which is underlain by anhydrite. Fusuline foraminifera indicate a Permian or younger age for the deposit. The gypsum has been deformed. Two sets of ridge-forming anticlinal folds are recognized and are interpreted as having resulted from ice-dragging during Pleistocene glaciation. This interpretation is based on a correlation between fold geometry and inferred directions of ice-movement. Minor intrastratal convolutions also occur and are regarded as the product of slumping which occurred not long after deposition. Petrographic observations indicate that the gypsum of the outcrop is a product of the hydration of anhydrite and that no increase in volume accompanied this replacement. The development of gypsum crystals from anhydrite occurred in three stages: a) the growth of large, coarse gypsum crystals at the expense of the anhydrite (G-1 stage); b) recrystallization of coarse gypsum crystals and formation of fine grained gypsum (G-2 stage); and c) growth of euhedral or lath-shaped crystals at the expense of fine grained gypsum ( G--3 stage). It is likely that the anhydrite formed after an earlier generation of gypsum but there is no petrographic evidence to substantiate this conclusion.
      Degree
      Master of Science (M.Sc.)
      Department
      Geological Sciences
      Program
      Geological Sciences
      Supervisor
      Wardlaw, N. C.
      Copyright Date
      1967
      URI
      http://hdl.handle.net/10388/etd-08212012-151401
      Collections
      • Graduate Theses and Dissertations
      University of Saskatchewan

      University Library

      © University of Saskatchewan
      Contact Us | Disclaimer | Privacy