High Field Strength Element (HFSE) and Rare Earth Element (REE) Enrichment in Laterite Deposit of High Background Natural Radiation Area (HBNRA) of Mamuju, West Sulawesi, Indonesia

High Field Strength Element (HFSE) and Rare Earth Element (REE) Enrichment in Laterite Deposit of High Background Natural Radiation Area (HBNRA) of Mamuju, West Sulawesi, Indonesia

The Mamuju region in West Sulawesi, Indonesia, is a High Background Natural Radiation Area (HBNRA) characterized by a significant enrichment of high field strength elements (HFSEs) and rare earth elements (REEs) within its lateritic deposits. This study investigates the geochemical behavior, mineral...

Full description

Saved in:
Bibliographic Details
Main Authors: I Gde Sukadana, Sulaeman, Heri Syaeful, Frederikus Dian Indrastomo, Tyto Baskara Adimedha, Roni Cahya Ciputra, Fadiah Pratiwi, Deni Mustika, Agus Sumaryanto, Muhammad Burhannudinnur, Rr Arum Puni Rijanti, Puji Santosa, Susilo Widodo
Format: Article
Language:English
Published: MDPI AG 2025-05-01
Series:Resources
Subjects:
HFSE
REE
laterite
Mamuju
HBNRA
Online Access:https://www.mdpi.com/2079-9276/14/5/84
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The Mamuju region in West Sulawesi, Indonesia, is a High Background Natural Radiation Area (HBNRA) characterized by a significant enrichment of high field strength elements (HFSEs) and rare earth elements (REEs) within its lateritic deposits. This study investigates the geochemical behavior, mineralogical distribution, and enrichment processes of HFSEs and REEs in lateritic profiles of drill cores and surface samples derived from alkaline volcanic rocks. The mineralogy and geochemical content of HFSEs and REEs in the alkaline bedrocks indicate its potential to become a source of lateritic enrichment. An intense lateritic weathering process leads to the residual accumulation of HFSEs and REEs, particularly in B-horizon soils, where clay minerals and Fe–Al oxides are crucial in element precipitation. Moreover, groundwater redox conditions are a key factor for uranium precipitation in the lateritic profile. The findings provide insight into the potential of lateritic weathering as a natural mechanism for HFSE and REE concentration, contributing to the broader understanding of critical metal resources in Indonesia. These insights have implications for sustainable resource exploration and environmental management in areas with high natural radiation exposure.
ISSN:2079-9276

Similar Items