This map and geodatabase illustrate the geology of the Canadian Arctic Islands including all lands north and west of Baffin Island. Major features include high-grade Archean and Paleoproterozoic metasedimentary and granitoid rocks of Ellesmere and lands to south
and southwest. To the north and west is Cambrian to Devonian cover that grades to deformed rocks of the Ellesmerian Orogen on Ellesmere Island and in the central and western Arctic Islands. The Ellesmerian Orogen features Devonian molasse detached on Ordovician evaporites, outer shelf carbonates of
Ellesmere Island detached in the Neoproterozoic, deep water strata including volcanics and turbidites, and Pearya terrane, accreted to ancestral North America in the Silurian. Unconformable on all this are Carboniferous to Paleogene strata of Sverdrup Basin which features a second deformation belt
of Paleogene age, the Eurekan Orogen. Youngest rocks are Neogene and widely represented in the western Arctic Islands from Meighen to Banks islands.
This map and the related geodatabase illustrate the bedrock geology of central Ellesmere Island and eastern Axel Heiberg Island. Major features of the area include high-grade Paleoproterozoic metasedimentary and granitoid rocks of the Inglefield Orogen,
unconformable lower Paleozoic shelf (and some deep-water strata) of the Central Ellesmere fold belt, the foreland clastic wedge of the Ellesmerian Orogen, unconformable Upper Paleozoic and Mesozoic strata of the Sverdrup Basin, and diverse Paleogene clastic rocks derived from the Eurekan Orogen. The
Silurian and Devonian interval includes the depositional record of Bache Uplift.
This map and the related geodatabase illustrate the bedrock geology of eastern Devon Island, Coburg Island, and southern Ellesmere Island. Major features of the area include: high-grade Neoarchean and Paleoproterozoic metasedimentary and granitoid rocks of the
(?)Rae craton and Inglefield Orogen, unconformable and mostly flat-lying Cambrian to Lower Devonian platformal strata, and (on Ellesmere Island) the Middle and Upper Devonian foreland clastic wedge associated with the Ellesmerian Orogen.
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