1978•Bulletin of Canadian Petroleum GeologyRequires access

A MIDDLE ORDOVICIAN UNCONFORMITY IN THE ARCTIC LOWLANDS: A DISCUSSION

J Dixon

Abstract

ABSTRACT The well-documented Middle Ordovician regional unconformity between the Franklin Mountain and Mount Kindle Formations of the northern Interior Plains (NWT) can be continued into the Arctic Lowlands. Paleontological data exist that suggest Middle Ordovician strata are absent. A sedimentary hiatus is recognized between Lower and Upper Ordovician rocks on Somerset Island and is equated to the Middle Ordovician unconformity of the Interior Plains. A similar sedimentary break, described from Baffin Island, also may be the Middle Ordovician regional unconformity.

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Key concepts: Ordovician, Unconformity, Geology, Paleontology, Sedimentary rock, Arctic, Oceanography