Gravity Measurements over the Rhum Tertiary Plutonic Complex

Abstract

DURING the past two years, sixty-six new gravity stations were established, using the Imperial College Worden gravity meter, on the islands of Rhum, Eigg, Canna and Sanday in the Inner Hebrides. Local bases on the islands were linked to Pendulum House, Cambridge, through the Mallaig gravity base established by Bullerwell and Phemister (private communication). The results were reduced to the International Gravity Formula, and after correction for terrain effects, the Bouguer anomalies were plotted as a gravity contour map (Fig. 1).