| 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. |
| Genre: | Article |
| ProdID: | 70014657 |
| Citation Author: | Force, E. R.; Back, W.; Spiker, E. C.; Knauth, L. P. |
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| Citation End Page: | 79 |
| Citation Issue: | 1 |
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| Citation Language: | English |
| Citation Larger Work Title: | Economic Geology |
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| Citation Number Of Pages: | 15 |
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| Citation Search Results Text: | A ground-water mixing model for the origin of the Imini manganese deposit (Cretaceous) of Morocco.; 1986; Article; Journal; Economic Geology; Force, E. R.; Back, W.; Spiker, E. C.; Knauth, L. P. |
| Citation Start Page: | 65 |
| Citation Volume: | 81 |
| Citation Year: | 1986 |
| Type: | citation/reference |
| Text: | A ground-water mixing model for the origin of the Imini manganese deposit (Cretaceous) of Morocco.; 1986; Article; Journal; Economic Geology; Force, E. R.; Back, W.; Spiker, E. C.; Knauth, L. P. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 1 Jan 1986 00:00 -0600 |
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