electron
No not the "formation of Marra Mamba" but the
transformation to enriched Marra Mamba. Enriched being the
operative word. Folding (anticlines and synclines), faults and erosion are an intregreal part of the process, since these events helped in allowing the water to reach the banded iron formations (BIF).
Marra Mamba is the lowest formation of the Hamersley
Group, therefore the oldest formation.
The ore was developed through the iron-enrichment of the
BIF through the oxidation of iron oxide as magnetite to
martite, and the replacement of gangue minerals such as
chert, carbonates and silicates by goethite. The original
banding of the rock is preserved through the enrichment
process.
- Forums
- ASX - By Stock
- UMC
- to understand aeromags
to understand aeromags, page-26
-
- There are more pages in this discussion • 11 more messages in this thread...
You’re viewing a single post only. To view the entire thread just sign in or Join Now (FREE)