Abstract
The Kuruman Iron-formation (135-750m) consists essentially of alternating stilpnomelane lutite to siderite-microbanded chert to siderite or siderite-silicate bandrhythmite to siderite-magnetite or siderite-silicate-magnetite bandrhythmite to magnetite-hematite or magnetite-siderite ribbonrhythmite macrocycles. The Griquatown Iron-formation (250m) consists essentially of endoclastic iron-formation which is arranged in a number of upward-coarsening orthochemical to allochemical iron-formation cycles. The orthochemical units include siderite lutites and greenalite lutites whereas the allochemical units consist of siderite grainlutites, siderite-greenalite grainlutites, disclutites and grainstones. Peloids and intraclasts are the most common grain types.-from Author
| Original language | English |
|---|---|
| Pages (from-to) | 69-86 |
| Number of pages | 18 |
| Journal | South African Journal of Geology |
| Volume | 83 |
| Issue number | 1 |
| Publication status | Published - 1980 |
ASJC Scopus subject areas
- General Environmental Science
- General Engineering
- General Earth and Planetary Sciences