This large quarry in massive Ottawa limestone contains carbonatite dykes that occupy regionally developed shatter zones at intervals of 50-100 m. They parallel a set of normal faults trending approximately east-west. The largest dyke, the most northerly, ranges in thickness from 1.2 to 0.3 m.
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On Sullivan Island and nearby smaller islands in the Ottawa River, and on the adjacent west bank of the river, a complex of carbonatites and fenites is exposed.
The Deloro Stock intrudes sediments and volcanics of the Grenville and Hastings Groups within the Grenville Structural Province near its southern boundary with overlying Palaeozoic sediments, which partly cover it.
The Hecla-Kilmer complex is completely covered by muskeg and glacial deposits, but aeromagnetic data indicate a complex of 18 km2. Drilling has proved the presence of essexite, ijolite, pyroxenite and nepheline syenite.
Sills up to 20 m thick intrude Lower and Middle Devonian sediments at Sextant Rapids on the Abitibi River and 3 km downstream at Coral Rapids where a 30 m thick dyke also outcrops.
Two drill holes intersected carbonatites and syenitic rocks at depths of about 130-160 m beneath Palaeozoic sediments and overburden.
Currie (1976a, p. 130) says that the Goldray occurrence is almost identical to Argor. There is no outcrop, the whole being covered with Pleistocene deposits. An aeromagnetic map and location is given by Ferguson (1971, Map P.452 - revised). Further information has not been located.
Said to be identical to Argor (031-00-059) by Currie (1976a, p. 130) and to occur 50 km south of that locality. No other information located.
This is a northeast-trending 10 m thick dyke of calcite carbonatite with phlogopite, sodic amphibole and pyroxene.
This intrusion of 11x7 km emplaced in Precambrian high grade metamorphic rocks consists of syenites and alkaline diorites, but no descriptions are available.