Special Publications
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Special Publications are thematic products on a particular subject, usually fairly narrowly defined and of special interest. DGS Special Publications include multi-paper volumes, posters, charts, and booklets, and range from less technical to highly technical, depending on the subject.
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Item Memoir of the Geological Survey of the State of Delaware(Newark, DE: Delaware Geological Survey, University of Delaware, 1841) Booth, J.C.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 those contained in the first and second annual reports, already laid before the legislature.Item The Story of Your State Geological Survey's Search for Water(Newark, DE: Delaware Geological Survey, University of Delaware, 1956) DGS StaffThis 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.Item Long-Range Plan For Water Resources Investigations In Delaware(Newark, DE: Delaware Geological Survey, University of Delaware, 1961-02) DGS StaffIn 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 these studies is the subject of this report. A brief discussion of water in Delaware is presented first to provide a proper background for the long-range plan. The plan itself merely outlines the overall objectives and types of investigational work that must be pursued if the State is to develop its water resources wisely.Item Generalized Geologic Map Of Delaware(Newark, DE: Delaware Geological Survey, University of Delaware, 1966-08) Spoljaric, N.; Jordan, R.R.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 first step in a continuing program of detailed geologic mapping. It is based upon many existing sources of data; additional detail may be found in the references listed.Item Geology and Earth Resources of Delaware(Newark, DE: Delaware Geological Survey, University of Delaware, 1968) DGS StaffItem Correlation Chart Of The Coastal Plain Units In New Jersey, Delaware, And Maryland(Newark, DE: Delaware Geological Survey, University of Delaware, 1972-12) Pickett, T.E.Item Generalized Geologic Map of Delaware(Newark, DE: Delaware Geological Survey, University of Delaware, 1976-04) Pickett, T.E.; Spoljaric, N.; Jordan, R.R.Item Selected Fossil Collecting Locations in Delaware and Minerals in Delaware(Newark, DE: Delaware Geological Survey, University of Delaware, 1978-12) DGS StaffItem Selected Papers On The Geology Of Delaware(Newark, DE: Delaware Geological Survey, University of Delaware, 1980-11) 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.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 time for presentation of ongoing research in various areas of science in the Delaware region. The proceedings of these meetings have resulted in publication of transactions of the Delaware Academy of Science. The 1976 annual meeting focused on aspects of the geology of Delaware. Members of the Delaware Geological Survey and the Geology Department at the University of Delaware contributed papers in their specific disciplines. This volume presents an overview of studies of geological features and processes of evolution of the geology of Delaware. Although this collection of papers does not represent an all-inclusive study of the subject, the selections included in this volume highlight past, present, and future trends in the study of Delaware's geology. It is hoped that the combined bibliographies of all the papers will provide a comprehensive view of the literature for further investigation into the geology of Delaware.Item Instructions For Preparation Of Delaware Geological Survey Data Base Schedules(Newark, DE: Delaware Geological Survey, University of Delaware, 1984-01) Talley, J.H.; Windish, D.C.; Ramsey, K.W.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 kinds of data consistent with the input format screens utilized in the automated system.Item Operations Manual University Of Delaware Drilling Rig(Newark, DE: Delaware Geological Survey, University of Delaware, 1986-06) Bounds, R.E.This manual has been prepared to promote safe, efficient use of a research tool that is of great importance in Delaware.Item Basic Hydrologic Data For Coastal Sussex County, Delaware(Newark, DE: Delaware Geological Survey, University of Delaware, 1987-01) Talley, J.H.; Andres, A.S.Item Laboratory Procedures Manual(Newark, DE: Delaware Geological Survey, University of Delaware, 1987-05) Kramer, M.G.; DGS Staff; Smith, C.T.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 and reports. Procedures used by the DGS for analyzing various aspects of geologic samples are described in this manual. The purpose of this manual is to standardize and document these procedures. Care and skill in laboratory operations are essential to the quality of the resulting interpretations.Item The Delaware Geological Survey: The Formative Years, 1951-1969(Newark, DE: Delaware Geological Survey, University of Delaware, 1988-06) Groot, J.J.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 of the Survey after 1969 are noted together with comments of an experienced observer; this current period may someday receive the attention of a recorder having the enhanced perspective of time.Item Cretaceous Fossils From The Chesapeake And Delaware Canal: A Guide For Students And Collectors(Newark, DE: Delaware Geological Survey, University of Delaware, 1988-09) Lauginiger, E.M.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 works have been written about the fossils. However, there has not been a single source for casual or student collectors to turn to for help in the identification of typical finds. This paper is written to fill that void as well as provide general information about fossils and specific information on geologic formations and collecting localities at the Canal. This report is not designed to be an encyclopedia on the fossils of the Canal but focuses on those fossils found most frequently. The majority of the fossils collected today are from the spoil areas in the vicinity of the Reedy Point Bridge. Thus, the chapter on classification concentrates on the fossils of the Mount Laurel Formation, the stratigraphic unit dredged in that area.Item Delaware: Its Rocks, Minerals, And Fossils(Newark, DE: Delaware Geological Survey, University of Delaware, 1992) DGS StaffMinerals 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 (waxy or pearly luster, cleavage). In nature minerals are usually found in mixtures with other minerals. A natural specimen containing several minerals is called "a rock." A common example is granite, which is a mixture of quartz, feldspar, mica, and usually other dark minerals. Fossils are any evidence, direct or indirect, of a pre-existing plant or animal in the rock record. The most popular area for collecting fossils in Delaware is the Chesapeake and Delaware Canal area.Item Geology And Paleontology Of The Lower Miocene Pollack Farm Fossil Site Delaware(Newark, DE: Delaware Geological Survey, University of Delaware, 1998) Benson, R.N.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 (Cheswold C-3 and C-4) yielded a diverse assemblage of land and marine vertebrate remains and more than 100 species of mollusks. An isolated occurrence of a sandy silt (the radiolarian bed) stratigraphically between the two macrofossil-bearing units yielded only siliceous microfossils—radiolarians, diatoms, and sponge spicules.Item Delaware Piedmont Geology(Newark, DE: Delaware Geological Survey, University of Delaware, 1998) Plank, M.O.; Schenck, W.S.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 capitalized. This is because these are formal geologic provinces. The “Fall Line” or “fall zone” is also an important geologic area. The Fall Line is the contact where the hard crystalline rocks of the Piedmont dip under and disappear beneath the sediments of the Coastal Plain. The fall zone is a narrow zone that parallels the Fall Line where rapids and waterfalls are common. The landscape and rock types shown in northern Delaware are classical examples of the larger geologic features that dominate the geology of eastern North America.Item Physiographic Regions of the Delaware Atlantic Coast(Newark, DE: Delaware Geological Survey, University of Delaware, 2000) Ramsey, K.W.; Schenck, W.S.; Wang, L.T.Item Selected Geomorphic Features of Delaware(Newark, DE: Delaware Geological Survey, University of Delaware, 2000) Ramsey, K.W.; Schenck, W.S.; Wang, L.T.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 Spatial Analysis Laboratory, from rasterized 1992-93 United States Geological Survey (USGS) Digital Line Graph (DLG) hypsography data. He also combined these data with zero-elevation contours extracted from 1989 Landsat TM Band 7 satellite imagery for coastal quadrangles. The image was digitally enhanced using a false sun angle of 45 degrees shining from the northwest to exaggerate the geomorphic features. In reality the Delaware Coastal Plain is not "mountainous," as it looks in this enhanced image. The hydrology layer was created using USGS 30 x 60 minute and 7.5 minute series DLG data. Municipal boundaries were created using the Delaware Municipal Boundary Framework Layer. Both maps are projected in Universal Transverse Mercator, Zone 18 (UTM 18) on the North American Datum 1983 (NAD83).