Outline #8

New Sciences: Creation of the Discipline of Geology


[See timeline of the sources and practices of geology]

  1. motivations for new geological investigations
    • the desire to scientifically organize, classify, find patterns in knowledge
    • natural theology and the creation of specialized studies
    • industrialism (development from 1700s to 1800 to 1850) and its needs, e.g. pottery industry
      • materials: stone, ores, coal
      • transportation: the siting of roads, canals
    • entrpreneurs and natural philosophers: the "Lunar Society"
    • specialization of science into "disciplines" with research programs, societies, roles
  2. geological fieldwork and classification: associative data and regular patterns of stratigraphy
    • mapping orderly geographical distribution (1740s- )
    • minerals and crystalline forms (1745- )
    • stratigraphy (1770s- ): development centered in German mining, with descriptive and mapping work of Lehmann and Füchsel
    • physical properties and chemical composition (Werner, 1774)
    • regularity of strata and predictability (Whitehurst, 1778)
    • fossils and biostratigraphy (Smith, 1815)
  3. dynamic models of the Earth
    • observations of sediments, earthquakes (1755), volcanism
    • uniform processes and historical development
      • Werner's saturated fluid, deposition, precipitation (1774)
      • Hutton's interior heat, transformation, building of layers (Theory of the Earth, with Proofs and Illustrations, 1785)
      • Buffon's cooling theory (1779)
      • Newtonian physics and Laplace's nebular hypothesis (1790s)
    • expanded age of the earth
      • the standard estimate from Biblical history (Ussher, 1650)
      • cooling rate estimate (Buffon, 1779)
      • sedimentation (Werner, 1774)
      • denudation estimate (Hutton, 1785)
      • implications of fossils of extinct forms (1780s- )
    • the theory of special creations and epochs (Cuvier, 1812; Lyell, 1830s)
  4. scientific principles (Lyell's Principles of Geology, 1830-33)
    • the appeal to naturalism and laws, and the search for causes
    • the methodological debate over catastrophe and Lyell's principle of uniformity
    • the central role of uniformitarianism in the science of geology


© 2018 Dr. William Kimler