A ground-water mixing model for the origin of the Imini manganese deposit (Cretaceous) of Morocco
Economic Geology
By: E. R. Force, W. Back, E.C. Spiker, and L.P. Knauth
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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.
Suggested Citation
Force, E.R., Back, W., Spiker, E., Knauth, L., 1986, A ground-water mixing model for the origin of the Imini manganese deposit (Cretaceous) of Morocco: Economic Geology, v. 81, no. 1, p. 65-79, https://doi.org/10.2113/gsecongeo.81.1.65.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | A ground-water mixing model for the origin of the Imini manganese deposit (Cretaceous) of Morocco |
| Series title | Economic Geology |
| DOI | 10.2113/gsecongeo.81.1.65 |
| Volume | 81 |
| Issue | 1 |
| Publication Date | February 01, 1986 |
| Year Published | 1986 |
| Language | English |
| Publisher | Society of Economic Geologists |
| Description | 15 p. |
| First page | 65 |
| Last page | 79 |
| Country | Morocco |