1. Another occurrence is as cumulate in gabbro and norite layered intrusions . 2. Nepheline-normative rocks occur in close association with the ultramafic layered intrusion . 3. Layered intrusions with cumulate peridotite are typically associated with sulfide or chromite ores.4. Chromitite layers occur commonly in large mafic layered intrusions . 5. Original magmatic textures, especially crude magmatic layering in layered intrusions , is often preserved. 6. Anorthosites are also common in layered intrusions . 7. Layered intrusions are found in typically ancient cratons and are rare but worldwide in distribution.8. Lopoliths typically consist of large layered intrusions that range in age from Archean to Eocene. 9. The country's different volcano and lava types originate from different sill provinces and layered intrusions . 10. It is an oval-shaped layered intrusion that was formed during five phases of magmatic activity.
