Open File 012I/0325

Geology of the Indian Lookout (NTS 12I/03) and Portland Creek (12I/04) Map Areas and Summary Notes, Map 2020-17

I. Knight

St. John’s, Newfoundland, 2020

This Open File release consists of a 1:50 000-scale geological map (NTS 12I/03; Indian Lookout and NTS 12I/04; Portland Creek) covering the region between Parson’s Pond in the south to Daniel’s Cove and Inner Brian’s Pond to the north, as well as a set of ancillary notes addressing aspects of map compilation, lithological features, lithostratigraphy and nomenclature. The maps incorporate field data collected in the region by the Geological Survey of Newfoundland and Labrador starting in 1983, supplemented by information gleaned from published and unpublished sources referenced in the accompanying notes. The Cambrian‒Ordovician shelf and foreland basin of the study area are located approximately midway on the Great Northern Peninsula, western Newfoundland. There, they extend west of the Proterozoic granitic and gneissic spine of the Long Range Mountains to the long, essentially straight, shoreline of the Gulf of St. Lawrence.

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