The southern highland region in Oman is known for its gypsum resources. Gypsum occurs in layered formation of several meter thickness, within a limestone/dolomite terrain. The assessed Permit extent is 80 hectares located near Thumrait at about 60 kilometre west of Salalah. Owing to regional tectonic events & geological complexities, the deposit is highly disturbed with folding, faulting & discontinuations.

Capstone’s team evaluated the permit using 2D Electrical Resistivity Imaging technique. A plan was evolved to cover the area in 07 alignments totalling 3300 meters of survey length & a target depth of 50 m. Based on this assessment a significant area has been discarded due to lack of deposit whereas about 04 MT resources could be estimated from 2D ERI sections.

Following the recommendation, the resource was evaluated, and mining commenced in 2016. Resources of high-grade gypsum of a tune of 1MT is already extracted from the zones identified in the geophysical investigation.