Browsing Special Publications by Issue Date

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  • Booth, J.C. (Newark, DE: Delaware Geological Survey, University of Delaware, 1841)
    The following report of the geological survey of the state of Delaware, conducted in the years 1837 and 1838, embraces all the observations and examinations which were made during the continuance of the survey, including ...
  • DGS Staff (Newark, DE: Delaware Geological Survey, University of Delaware, 1956)
    This is a brief story about water and the ways in which the Delaware Geological Survey helps insure that you will always have a plentiful supply of this precious natural resource.
  • DGS Staff (Newark, DE: Delaware Geological Survey, University of Delaware, 1961-02)
    In order to obtain sufficient data which will enable the State to develop its water resources to the fullest extent of which they are capable, a series of systematic investigations is necessary. A long-range plan describing ...
  • Spoljaric, N.; Jordan, R.R. (Newark, DE: Delaware Geological Survey, University of Delaware, 1966-08)
    The Generalized Geologic Map of Delaware is a brief summary for general use indicating the major types and locations of rocks present throughout the State, and their interrelationships. The map is preliminary as it is a ...
  • DGS Staff (Newark, DE: Delaware Geological Survey, University of Delaware, 1968)
  • Pickett, T.E. (Newark, DE: Delaware Geological Survey, University of Delaware, 1972-12)
  • Pickett, T.E.; Spoljaric, N.; Jordan, R.R. (Newark, DE: Delaware Geological Survey, University of Delaware, 1976-04)
  • DGS Staff (Newark, DE: Delaware Geological Survey, University of Delaware, 1978-12)
  • Jordan, R.R.; Pickett, T.E.; Kraft, J.C.; Sheridan, R.E.; Spoljaric, N.; Thompson, A.M.; Woodruff, K.D.; Varrin, R.D.; Leavens, P.B.; Carey, W.L. (Newark, DE: Delaware Geological Survey, University of Delaware, 1980-11)
    The Delaware Academy of Science has been instrumental in informing Delaware citizens about science and utilization of local resources. Since 1970 the annual meeting of the Delaware Academy of Science has been used as a ...
  • Talley, J.H.; Windish, D.C.; Ramsey, K.W. (Newark, DE: Delaware Geological Survey, University of Delaware, 1984-01)
    This report contains the new DGS data schedules, describes the information that should be recorded on each schedule, and presents instructions for preparation of the schedules. The schedules are designed to make various ...
  • Bounds, R.E. (Newark, DE: Delaware Geological Survey, University of Delaware, 1986-06)
    This manual has been prepared to promote safe, efficient use of a research tool that is of great importance in Delaware.
  • Talley, J.H.; Andres, A.S. (Newark, DE: Delaware Geological Survey, University of Delaware, 1987-01)
  • Kramer, M.G.; DGS Staff; Smith, C.T. (Newark, DE: Delaware Geological Survey, University of Delaware, 1987-05)
    Laboratory analyses of geologic samples are performed on a regular basis at the Delaware Geological Survey (DGS). These analyses produce valuable information used to assist the production of geologic and hydrologic maps ...
  • Groot, J.J. (Newark, DE: Delaware Geological Survey, University of Delaware, 1988-06)
    Emphasis is placed herein on the years of Dr. Groot's leadership of the Survey. The remarkable work of James C. Booth in the last century is acknowledged but has elsewhere been entered in history. Some continuing activities ...
  • Lauginiger, E.M. (Newark, DE: Delaware Geological Survey, University of Delaware, 1988-09)
    Fossil collectors have been attracted to Delaware since the late 1820s when the excavation of the Chesapeake and Delaware (C&D) Canal first exposed marine fossils of Cretaceous age. Since then, many technical and nontechnical ...
  • DGS Staff (Newark, DE: Delaware Geological Survey, University of Delaware, 1992)
    Minerals are naturally occurring, inorganic substances with characteristic physical and chemical properties. Common examples found in Delaware are quartz (hard, glassy luster), mica (cellophane like pieces), and feldspar ...
  • Plank, M.O.; Schenck, W.S. (Newark, DE: Delaware Geological Survey, University of Delaware, 1998)
    The Red Clay Creek Valley traverses geologic features that have long been recognized as important to science, industry, and history. The reader will note that within the text “Piedmont,” and “Atlantic Coastal Plain” are ...
  • Benson, R.N. (Newark, DE: Delaware Geological Survey, University of Delaware, 1998)
    The Pollack Farm Site near Cheswold, Delaware, is named for a borrow pit excavated during highway construction. The excavation exposed a portion of the Cheswold sands of the lower Miocene Calvert Formation. Two sand intervals ...
  • Ramsey, K.W.; Schenck, W.S.; Wang, L.T. (Newark, DE: Delaware Geological Survey, University of Delaware, 2000)
    The shaded relief image on the left was created using 30-meter resolution Digital Elevation Models (DEMs). The DEMs were developed by John Mackenzie, University of Delaware College of Agriculture and Natural Resources ...
  • DGS Staff (Newark, DE: Delaware Geological Survey, University of Delaware, 2000)
    Delaware’s oldest rocks are metamorphic crystalline rocks of the central Appalachian Piedmont Physiographic Province. Atlantic Coastal Plain sediments overlie the crystalline rocks of the Piedmont and range in thickness ...

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