Application of UNFC for reassessment of uranium resources of the Eko Remaja and Rabau Sectors, Kalan Area, West Kalimantan, Indonesia
- 作者: Frederikus Dian Indrastomo, Heri Syaeful and Mirna Berliana Garwan
- Main Title: Application of the United Nations Framework Classification for Resources: Case Studies , pp 137-147
- 出版日期: 九月 2020
- DOI: https://doi.org/10.18356/9a317877-en
- Language: 英语
Uranium exploration in the Kalan Area, West Kalimantan started in 1973 and is still on-going. The Eko-Remaja and Rabau Sectors are important sectors in the Kalan Area. Metasiltstone and schistose metapellite are uranium favourable rocks in the Eko-Remaja sector, while metasiltstone is the favourable rock for the Rabau Sector. Uranium resources in the Eko-Remaja Sector are estimated at 1,243 tonnes U3O8 with 0.1% average grade. Uranium resources in the Rabau Sector are estimated at 294 tonnes U3O8, with average grade 0.09% U 3O8. A pre-feasibility study was conducted in the Kalan Area for the Eko-Remaja Sector from 1991 to 1993 to calculate the economic value of uranium deposit in the area. Resource classification using the Indonesian National Standard (SNI-1998) resulted in the Measured Mineral Resources (A2) category for both sectors.
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