Numerous monchiquitic dykes occur along the coast and on islands in the southern part of Notre Dame Bay (Strong and Harris, 1974, Fig. 1). Titanaugite, biotite and olivine form phenocrysts and analcime is present in the groundmass and, with calcite, in ocelli. In the east of the area, particularly on Twillingate and New World Islands, the dykes contain ocelli, which may form as much as 50% of the rock, of calcite, analcime and nepheline. The more westerly dykes appear to be radial to the 5x3 km Budgells Harbour stock (op. cit., Fig. 2) which consists of gabbros including varieties with analcime and biotite. Numerous rock analyses are available.