A ground-water mixing model for the origin of the Imini manganese deposit (Cretaceous) of Morocco.

E. R. Force, W. Back, E. C. Spiker, L. P. Knauth

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Three beds of manganese oxide ore in a 10 m-thick dolomite unit are associated with diagenetic features, and, are accordingly also diagenetic in their present aspect. Whether primary or introduced, the Mn mineralogy is attributed to reactions between fresh and saline ground-waters as the zone of mixing passed through the dolomite unit during a period of falling sea-level. The succession of diagenetic changes is: 1) precursor carbonates, 2) dolomite-janggunite, 3) hollandite-pyrolusite-chert-calcite.-G.J.N.

Original languageEnglish (US)
Pages (from-to)65-79
Number of pages15
JournalEconomic Geology
Volume81
Issue number1
DOIs
StatePublished - 1986
Externally publishedYes

Fingerprint

Manganese deposits
manganese deposit
Morocco
Manganese oxide
Mineralogy
Saline water
Calcite
Sea level
ground water
Ores
manganese
dolomite
Groundwater
Carbonates
deposits
Cretaceous
groundwater
Calcium Carbonate
manganese oxides
manganese oxide

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics
  • Engineering(all)

Cite this

A ground-water mixing model for the origin of the Imini manganese deposit (Cretaceous) of Morocco. / Force, E. R.; Back, W.; Spiker, E. C.; Knauth, L. P.

In: Economic Geology, Vol. 81, No. 1, 1986, p. 65-79.

Research output: Contribution to journalArticle

Force, E. R. ; Back, W. ; Spiker, E. C. ; Knauth, L. P. / A ground-water mixing model for the origin of the Imini manganese deposit (Cretaceous) of Morocco. In: Economic Geology. 1986 ; Vol. 81, No. 1. pp. 65-79.
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