A Composite Study using Gravity, Magnetic and Resistivity Surveys to Delineate Iron Ore, Sillanwali Area District Sargodha and Jhang (T-1350) (MFN 2238)

Abstract

Integrated geophysical study comprising Gravity. Magnetic. ancl Electrical resistivity sounding survey rmv data were llsed to delineate the occurrence of iron ore dq:lOsits in the vicinity of Kirana Ilills at Silawali area of district Sargoda. Agrid 01'200 by 150 meters was laid over the entire area of investigation ancl stations were established. Gravity and magnetic survey carried out over the same grid patterns. while resistivity survey clata acquisition was made randomly at 24 stations keeping in line ""lith the anomalous Zones resulting from the evaluation of the gravity and magnetic data. Although the magnetic anomaly map resembles v'lith the Bouguer anomaly map. however. the positive value 01'30 gammas lie in the middle of the Eastern halformap where gravity values arc 2.8m gals, which arc not significant as regard to the magnetic anomaly magnitude. Gravity and Magnetic anomalies exhibit a closing trend northwards. Atest hole of 200 meters depth can be drilled at line 32 .station 10 to l'urther contain the interpretative results (i.e .. on gravity high zone with low magnetic anomalies).