Carbonatite-hosted residual REE deposits
Edited by: Robert J. Bowell and Charles R.M. Butt
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Abstract
Rare earth elements (REEs) occur in magmatic rocks but are especially enriched in carbonatite and alkaline silicates. If these rocks are chemically weathered, then the REEs may become further enriched within the regolith developed from these rocks. Primary magmatic REE minerals, as well as the various carbonate minerals and apatite, provide the REEs which, under pervasive chemical weathering, are incorporated within low-temperature REE minerals forming within the regolith. Many of these minerals, as well as their textures, are characteristic of this mode of formation. Lateritic conditions of weathering are instrumental in producing a thick, weathered, or regolith, profile, and the roles of sulfide oxidation, fluctuating groundwater tables, and downward mass wasting due to carbonate dissolution are identified as the most important controls on REE enrichment in the regolith.
| Publication type | Book chapter |
|---|---|
| Publication Subtype | Book Chapter |
| Title | Carbonatite-hosted residual REE deposits |
| DOI | 10.1007/978-3-031-75733-4_7 |
| Publication Date | May 28, 2025 |
| Year Published | 2025 |
| Language | English |
| Publisher | Springer |
| Contributing office(s) | Geology, Geophysics, and Geochemistry Science Center |
| Description | 18 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Monograph |
| Larger Work Title | Geology, geochemistry and formation of supergene mineral deposits in deeply weathered terrain |
| First page | 179 |
| Last page | 206 |