A NEW EDITION OF THE ATLANTIC GEOSCIENCE SOCIETY’S GEOLOGICAL JOURNEY MAP OF NOVA SCOTIA, CANADA

The first “Geological Highway Map of Nova Scotia” was published by the Atlantic Geoscience Society (AGS) in 1980, with subsequent revised editions following in 1990 and 2005. Like its predecessors, the new (2022) fourth edition shows the road system of Nova Scotia superimposed on underlying bedrock geological units. The map is intended to encourage people to observe and better understand the diverse geological features that are responsible for the renowned scenic beauty of Nova Scotia, evident as they travel around the province or visit viewpoints, parks, and coastal sections. In addition to a significantly updated and revised geological map (scale 1:640 000), the front side of the map also includes the legend (Table of Rock Units) that uses a simplified version of the 2021 International Chronostratigraphic Chart as the time scale. In recognition of Nova Scotia’s geological diversity, units in the legend are divided into four areas: southern mainland, northern mainland, southeastern Cape Breton Island, and northwestern Cape Breton Island. Information is also included on how to use the map, as well as a symbols key, representative block diagrams, and short descriptions of 58 sites of geological interest. Although emphasis is on bedrock geology and links to landforms, features related to the most recent glacial events are also noted. The reverse side provides more detailed maps and site descriptions for selected areas that are well known and accessible, including Joggins, the Cabot Trail, the Parrsboro-Five Islands area, Scots Bay-Burntcoat Head, Yarmouth-Cape St. Marys, Arisaig, Halifax, and Louisbourg. Descriptions emphasize rock types, minerals, fossils, structural features, landforms, and glacial history, as well as notes of caution where applicable and information about collecting permits. The map is a companion to a second new AGS Special Publication entitled “Journey Through Time – Places of Geological Significance in New Brunswick and Prince Edward Island”.