The mid-Cretaceous succession of Orphan Knoll (northwest Atlantic): micropalaeontology and palaeo-oceanographic implications

• Published in: Canadian Journal of Earth Sciences
• Main Author: Hart, Malcolm B.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1976
• Subjects: General Earth and Planetary Sciences; Orphan Knoll; North Atlantic; Northwest Atlantic
• Online Access: http://dx.doi.org/10.1139/e76-145; http://www.nrcresearchpress.com/doi/pdf/10.1139/e76-145

Micropalaeontological investigation of the mid-Cretaceous succession (Albian–Cenomanian) of Orphan Knoll (northwest Atlantic Ocean) has allowed direct stratigraphic comparison with successions of a similar age elsewhere in the area of the North Atlantic Ocean. The microfaunal evidence presently available suggests a major world-wide eustatic change in the mid-Cenomanian, together with associated changes in the surface water circulation of the Cretaceous North Atlantic Ocean.