Iloilo City – The Mines and Geosciences Bureau (MGB) Regional Office VI, recently concluded the geological field survey of the Vallehermosa quadrangle, which straddles the municipalities of Murcia, La Castellana, and San Carlos City in Negros Occidental, and portions of the municipality of Vallehermosa and Kanlaon city in Negros Oriental. This is in line with the geological quadrangle mapping program of MGB.
A team of geologists from MGB VI recently completed the field survey after more than a month. The quad mapping is based on the topographic maps of the National Mapping and Resource Information Authority (NAMRIA) which describes the size of one quadrangle map as 15’x15.’ Meanwhile, MGB VI geologist Dr. Leilanie O. Suerte estimates one quadrangle map sheet to cover 48,600 hectares on average in the Philippines.
Dr. Suerte said the MGB quadrangle geologic mapping is a regular activity covering with or without mineralization. This produces information on the geology, structure, and age of the stone in the area. Geologic maps and mineral resource maps are the end output of the activity that are useful tools for the government in completing its mineral resources information base.
MGB VI has 3-4 targets for geological quadrangle mapping in a year. For 2023, MGB VI has a remaining target to map the Iloilo City and Dumangas quadrangles, Dr. Suerte said. (MGB VI)