Rock varnish origin, characteristics, and usage.

Ronald Dorn, T. M. Oberlander

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

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
Volume25
Issue number4
StatePublished - 1981
Externally publishedYes

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rock varnish
manganese
coating
weathering
microorganism

ASJC Scopus subject areas

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

Cite this

Rock varnish origin, characteristics, and usage. / Dorn, Ronald; Oberlander, T. M.

In: Zeitschrift fur Geomorphologie, Vol. 25, No. 4, 1981, p. 420-436.

Research output: Contribution to journalArticle

Dorn, R & Oberlander, TM 1981, 'Rock varnish origin, characteristics, and usage.', Zeitschrift fur Geomorphologie, vol. 25, no. 4, pp. 420-436.
Dorn, Ronald ; Oberlander, T. M. / Rock varnish origin, characteristics, and usage. In: Zeitschrift fur Geomorphologie. 1981 ; Vol. 25, No. 4. pp. 420-436.
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