Geology Of The Continental Margin Of Eastern Canada

The continental margin of eastern Canada extends from Georges Bank at 41 degrees North to Nares Strait at 80 degrees North, almost half the distance from the Pole the equator. It is a classical example of a passive or 'Atlantic" type of continental margin with a geological history reflecting at least two 'Wilson Cycles". The first gave birth to the Iapetus Ocean, and the second to the modern Atlantic and its neighbors. The margin ties the glacial history of the Canadian landmass to the adjacent ocean basins, and so to the world's oceans. Two of the basins offshore eastern Canada, the Jeanne d'Arc Basin off Newfoundland and the Scotian Basin off Nova Scotia, contain substantial resources of oil and gas. An understanding of the geology of the margin bears directly on the evolution of the whole of the North Atlantic and the Arctic, and on the generation of hydrocarbons.

Developments in Geotectonics, 15: Crustal Properties across Passive Margins covers the papers presented at the symposium ""Crustal Properties across Passive Margins"", held at Dalhousie University in Halifax, Nova Scotia on June 19-23, 1978. The book focuses on theoretical modelling of the rheological properties in the upper mantle beneath oceans and continents and stratigraphic studies of the sedimentary basins. The selection first offers information on seismic refraction study of the continental edge off the Eastern United States and gravity field of the U.S. Atlantic continental margin. Topics include crustal sections, inner and outer quiet zones, alternative models and complications, gravity models, free-air anomaly map, and the ocean-continent transition zone. The text then takes a look at the geologic history of the passive margin off New England and the Canadian Maritime Provinces and geophysical observations bearing upon the origin of the Newfoundland Ridge. The manuscript elaborates on the age and origin of the deepest correlative structures recognized off Canada and Europe and geophysical transects of the Labrador Sea. Discussions focus on magnetics and gravity, stratigraphic control, consequences regarding subduction or rifting, and deep structures of the Grand Banks of Newfoundland. The selection is a dependable reference for readers interested in crustal properties across passive margins.

The continental margins of the world constitute the most impressive and largest physiographic feature of the earth's surface, and one of fundamentally great geological significance. Continental margins have been the subject of increasing attention in recent years, an interest focused by a body of new data that has provided new insights into their character. This interest was further stimulated by the realization that, in addition to the abundant living resources, continental margins contain petroleum and mineral resources that are accessible with existing technology. This realization, along with their basic geological importance, has provoked further research into the nature of continental margins throughout the world. A summary of these findings, as related to both recent and ancient continental margins, is the subject of this book. At various times in the past we had been approached individually to prepare a basic reference to continental margins; we then proposed to do such a volume jointly. However, the stimulus for the present volume eventually arose from a Penrose Conference arranged through the Geological Society of America. This conference was attended by specialists of numerous disciplines and from throughout the world, many of whom insisted that such a volume would be both timely and useful. Consequently, we agreed to undertake the task of assembling this book, with the objectives of making it available as soon and as inexpensively as possible.

Recent work in the North American Cordillera emphasized the differencesbetween fault-bounded blocks of stratigraphy and as a consequence, theCordillera was subdivided into terranes. In east-central British Columbia, 5fault-bounded terranes are distinguished by their unique stratigraphy. Thispaper interprets the palinspastic geology of those terranes and how theycould come together, then showing that the terranes of east-centralCordillera were probably separated by highlands rather than oceans. Modifications to Trumpy's (1960) model for the Alps are discussed, thestratigraphy of the terranes summarized, and the Triassic palinspasticcross-section described. Finally the reconstruction of the Precambrian toPaleozoic western Canadian margin are discussed by relating the stratigraphyof the eastern Cordilleran terranes to the possible tectonic events thatcreated them.

The continental margin of eastern Canada extends from Georges Bank at 41 degrees North to Nares Strait at 80 degrees North, almost half the distance from the Pole the equator. It is a classical example of a passive or 'Atlantic" type of continental margin with a geological history reflecting at least two 'Wilson Cycles". The first gave birth to the Iapetus Ocean, and the second to the modern Atlantic and its neighbors. The margin ties the glacial history of the Canadian landmass to the adjacent ocean basins, and so to the world's oceans. Two of the basins offshore eastern Canada, the Jeanne d'Arc Basin off Newfoundland and the Scotian Basin off Nova Scotia, contain substantial resources of oil and gas. An understanding of the geology of the margin bears directly on the evolution of the whole of the North Atlantic and the Arctic, and on the generation of hydrocarbons.

Proceedings of the Seventh International Conference on Basement Tectonics, held in Kingston, Ontario, Canada, August 1987

Expert petroleum geologists David Roberts and Albert Bally bring you Regional Geology and Tectonics: Phanerozoic Passive Margins, Cratonic Basins and Global Tectonic Maps, volume three in a three-volume series covering Phanerozoic regional geology and tectonics. Its key focus is on both volcanic and non-volcanic passive margins, and the importance of salt and shale driven by sedimentary tectonics to their evolution. Recent innovative research on such critical locations as Iberia, Newfoundland, China, and the North Sea are incorporated to provide practical real-world case studies in regional geology and tectonics. The vast amount of volcanic data now available to form accurate hydrocarbon assessments and analysis at passive margin locations is also included into this thorough yet accessible reference. Named a 2013 Outstanding Academic Title by the American Library Association's Choice publication A "how-to" practical reference that discusses the impact of the development of passive margins and cratonic basins on the structural evolution of the Earth in regional geology and tectonic applications. Incorporates the increased availability of industry data to present regional seismic lines and cross-sections, leading to more accurate analysis and assessment of targeted hydrocarbon systems Analyses of passive margins and cratonic basins in East Africa, China, Siberia, the Gulf of Suez, and the Laptev Sea in the Russian Arctic provide immediately implementable petroleum exploration applications Summaries of analogue and theoretical models are provided as an essential backdrop to the structure and stratigraphy of various geological settings.