Open and closed rock cycles

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The rock cycle is a traditional and widely employed pedagogical device. Most textbook depictions of the rock cycle show a closed circuit, unconnected to other cycles. Considering the foundation the rock cycle provides students when developing geologic histories, this closed character is problematic. Using Gould's paired metaphors of time's arrow versus time's cycle, a simple closed rock cycle is pure time's cycle and peculiarly ahistorical, that is, system evolution is denied or omitted. Present-day closed depictions of the rock cycle are inconsistent with modern views of the earth's history. Some possible pedagogic changes in response to the above argument are 1) to employ open rock cycle diagrams, with connections to other systems, 2) to discuss time's arrow and time's cycle with students, 3) to employ the term rock or earth system, instead of rock cycle, and 4) to replace the rock cycle with a host of depictions of other open systems, for example, that of a subduction-arc complex. -from Author

Original languageEnglish (US)
Pages (from-to)393-397
Number of pages5
JournalJournal of Geological Education
Volume40
Issue number5
DOIs
StatePublished - Jan 1 1992

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rock
open system
pedagogics
history
textbook
student
metaphor
time
present
subduction
diagram

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Cite this

Open and closed rock cycles. / Maher, H. D.

In: Journal of Geological Education, Vol. 40, No. 5, 01.01.1992, p. 393-397.

Research output: Contribution to journalArticle

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