From Early Ordovician to Late Devonian, the Baumann and Vendom Fiord areas lay across the active margin of the Franklinian Miogeosyncline. Over 30,000 ft (9120 m) of sediments accumulated in a trough that continued to tilt down to the west.

From Early to Middle Ordovician a thick sequence of alternating carbonates and evaporites accumulated. This sequence was followed from Late Ordovician to Early Devonian by a series of porous reefs of the Allen Bay - Read Bay Group which transgressed the shelf margin. Shelfward from these reefs micritic carbonates and clastic deposits accumulated. Basinward bituminous shales were deposited. In the Lower Devonian a clastic wedge of sediment, the Eids Formation, built out into the basin. It was followed by predominantly shelf carbonates in the Middle Devonian with some periodic influxes of shale. The final 10,000 ft (3040 m) of sediments of Late Devonian age are predominantly terrestial, red and green shales with a median unit of fluviatile sands.

By the end of Late Devonian, the sequence of Early Paleozoic sediments (30,000 + ft) (9120 m) was broadly folded by the Ellesmerian Orogeny. The Vendom and Schei synclines were formed at this time and flank the craton margin. Eurekan movements in the Late Tertiary have differentially uplifted and faulted the Vendom and Schei synclines. The Vendom Syncline is recognized as distinct from the Schei because of a transverse Eurekan structure separating the two. In the Meadow River area the northeastern limb of the Vendom Syncline was thrust-faulted during Eurekan, as it impinged on the shield. The Eurekan Sound Formation has been folded by differential uplift and gravity sliding.

This content is PDF only. Please click on the PDF icon to access.

First Page Preview

First page PDF preview
You do not have access to this content, please speak to your institutional administrator if you feel you should have access.