Guide to the Edward C. Dapples (1906- ) Papers

Collection Title: Edward C. Dapples (1906- ) Papers
Dates: 1938-1980
Identification: 11/3/14/9
Creator: Dapples, Edward C.
Extent: 3 Boxes
Language of Materials: English
Abstract: The Edward C. Dapples Papers, filling three boxes, span the years 1938 to 1980 and cover his career as a geologist, consultant and university professor. The papers include biographical materials, correspondence, publications files, and research and subject files. Included in the subject files are drawings, booklets, a few letters, graphs, maps, diagrams, and bibliographies on various geological subjects from the period 1940-1976.
Acquisition Information: These materials were received by the University Archives from the Department of Geology in two installments as Accession #85-222 (October 16, 1985) and Accession #86-67 (May 7, 1986).
Processing Information: Gerry Boberg and Hal Taylor, January 1987.
Separated Materials: None.
Conditions Governing Access: None.
Repository: Northwestern University Archives
Deering Library, Room 110
1970 Campus Dr.
Evanston, IL, 60208-2300
Phone: 847-491-3354

Biographical/Historical Information

Edward C. Dapples was born December 13, 1906, in Chicago, Illinois, the son of Edward C. and Victoria (Gazzolo) Dapples. He received his B.S. (1928) and M.S. (1934) degrees from Northwestern University. He studied at Harvard (M.A., 1935) and the University of Wisconsin (Ph.D., 1938).

After completing his undergraduate work at Northwestern, Dapples was employed for several years by the Truax-Traer and Zeigler coal companies as a geologist and mine supervisor. In 1936, he became an instructor at Northwestern University, assistant professor in 1941, associate professor in 1942, and professor of geological sciences in 1950. During these years Dapples also acted as a geological consultant for the Sinclair, Pure, Buffalo, and Forest oil corporations. From 1960 to 1961, he was senior visiting scientist at the University of Lausanne. In 1970, Dapples was visiting professor at the University of Geneva.

During his years of teaching, Dapples performed experiments in mining operations, particularly open-cut mining and exploration for oil. He also served as a consultant in rock materials, work which greatly influenced his publications. Dapples' writings include numerous articles published in geological journals. His two major books were Basic Geology for Science and Engineering (New York: Wiley, 1959) and, Environments of Coal Depositions (Boulder, Colorado: Geological Society of America, 1969).

Dapples held office in many geological associations. He was president of the Society of Economic Paleontologists and Mineralogists (SEPM) (1970-1971) and the American Association of Petroleum Geologists (1979-1980). He was a fellow of the Geological Society of America and was active on its G.H. Cady Award Committee.

Dapples retired from Northwestern in 1973 and was named Professor Emeritus. He left the Chicago area in 1980 and moved to Sun City, Arizona.

Dapples married Marion Virginia Sprague on September 2, 1931. The couple had two children: Marianne Helena and Charles Christian.

Scope and Content

The Edward C. Dapples papers, filling three boxes, span the years 1938 to 1980. The papers include biographical materials, correspondence, publications files, and research and subject files.

The biographical materials include vita, newspaper clippings, and a few related items.

Correspondence spans the years from 1968 to 1980. It deals largely with Dapples' association with numerous geological societies, university service, publications, and the G.S. Cady Awards. Most of the items are copies of letters from Dapples. Incoming letters are all from prospective publishers. Correspondence is arranged chronologically.

Publication files contain reprints of articles, manuscripts, and a revised encyclopedia entry authored by Dapples during the period 1938-1978. Some correspondence with publishers is included in these files. Several files pertain to Dapples' research and writing on the topic of sedimentary petrology.

Dapples' research and subject files consist mainly of notes. Also filed here are drawings, booklets, a few letters, graphs, maps, diagrams, and bibliographies on various geological subjects from the period 1940-1976.

Arrangement of Materials

The Edward C. Dapples papers are broken into four series: biographical materials, correspondence (arranged chronologically), publications files, and research and subject files (arranged alphabetically).


Corporate Name

Northwestern University (Evanston, Ill.). Department of Geology

Personal Name

Dapples, Edward C.--Archives


Geology--Study and teaching

Container List / Contents

  • Correspondence
    • General Correspondence, 1968-73Box 1, Folder 2
    • General Correspondence, 1973-75Box 1, Folder 3
    • General Correspondence, 1975-77Box 1, Folder 4
    • General Correspondence, 1977-78Box 1, Folder 5
    • General Correspondence, 1976-79Box 1, Folder 6
    • General Correspondence, 1979-80Box 1, Folder 7
  • Publications
    • Reprints, 1938-1962, n.d.Box 1, Folder 8
    • Sedimentary Petrology
      • Conglomerate Bibliography, ca. 1968Box 1, Folder 9
      • General Bibliography, ca. 1968Box 1, Folder 10
      • General Reference, ca. 1967Box 1, Folder 11
      • General Bibliography (Paste-up), ca. 1968Box 2, Folder 1
      • Chapter 1, n.d.Box 2, Folder 2
      • Chapter 2, 1967Box 2, Folder 3
      • Chapter 3: Texture of Clastic Sedimentary Rock, 1968Box 2, Folder 4
      • Chapter 4: Diagenesis, 1968Box 2, Folder 5
      • Chapter 5: Concepts of Classification, n.d.Box 2, Folder 6
      • Chapters 6-10 (Outline Only), n.d.Box 2, Folder 7
    • Articles and Other Publications
      • Diagenesis: "McGraw-Hill Encyclopedia of Science and Technology", 1975Box 2, Folder 8
      • Diagenesis of Sandstones, 1964-65; 1974-78Box 2, Folder 9
      • Diagenesis of Sediments, 1972-1973Box 2, Folder 10
      • Feldspars of the Tunnel City Group (Cambrian), Western Wisconsin, USA, 1976-1877Box 2, Folder 11
      • Feldspars of the Tunnel City Group (Cambrian), Western Wisconsin, USA, Plates, ca. 1976-1977Box 2, Folder 12
      • Glenn D. Hawkins Memorial, American Association of Petroleum Geologists "Bulletin", 1973Box 2, Folder 13
      • Laws of Distribution Applied to Sand Sizes, 1974Box 2, Folder 14
      • Physical Classification of Carbonate Cement in Quartzose Sandstones, 1970Box 2, Folder 15
      • Silica as an Agent in Diagenesis, 1974Box 2, Folder 16
      • Some Concepts on Cementation in Sandstones, 1971Box 3, Folder 1
  • Research and Subject Files
    • American Association of Petroleum Geologists: Presidential Address: Some Concepts of the Cementation of Sandstones, 1971Box 3, Folder 2
    • Cambrian Sandstones: Data Sheets, 1969-1970Box 3, Folder 3
    • Cambrian Sandstones: Particle Size Distributions, 1967Box 3, Folder 4
    • Cambrian Sandstones: Percent Distribution of Quartz and Feldspar, n.d.Box 3, Folder 5
    • Cambrian Sandstones: Student Studies, 1966Box 3, Folder 6
    • Cross Bedding: Bibliography, 1958-1976Box 3, Folder 7
    • Deltaic Sediments: Seminar on Comparison of Recent and Ancient, 1967Box 3, Folder 8
    • Evanston, Illinois: Glacial Deposits, 1946Box 3, Folder 9
    • Feldspar: Diagram on Composition, n.d.Box 3, Folder 10
    • Geological Society of America: Environments Influencing Deposition of the Franconia Formation, 1973Box 3, Folder 11
    • "Journal of Sedimentary Petrology, Research Notes", n.d.Box 3, Folder 12
    • Lake Michigan Shoreline, 1940-1941Box 3, Folder 13
    • Los Pinos, New Mexico, 1941Box 3, Folder 14
    • Northeastern Illinois: Glacial Sediment Studies, 1945-1946Box 3, Folder 15
    • Petrology of Coal Bearing Rocks, n.d.Box 3, Folder 16
    • Platteville Strata Outcrops, 1969, 1976Box 3, Folder 17
    • Sedimentation, n.d.Box 3, Folder 18
    • Sediments in the Gulf Coast, 1952Box 3, Folder 19
  • Biographical Materials, 1959-1972, n.d.Box 1, Folder 1