Rock varnish origin, characteristics, and usage.

R. I. Dorn, T. M. Oberlander

Research output: Contribution to journalArticlepeer-review

46 Scopus citations


Field observation and chemical and micromorphological analysis of manganese-rich rock varnish in almost every terrestrial weathering environment in western North American indicate that several variants of varnish exist. The characteristics of manganese coatings in varying environments are consistent with a biological genesis. Manganese concentrating and oxidizing microorganisms observed on rock varnishes were cultured and produced rock varnishes under laboratory conditions.-from Authors

Original languageEnglish (US)
Pages (from-to)420-436
Number of pages17
JournalZeitschrift fur Geomorphologie
Issue number4
StatePublished - Jan 1 1981
Externally publishedYes

ASJC Scopus subject areas

  • Geography, Planning and Development
  • Earth and Planetary Sciences (miscellaneous)


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