Home » Orogeny: Orogeny, Laramide Orogeny, Geology of the North Sea, Trans-Hudson Orogeny, Mountain Formation, Grenville Orogeny, Cale by Books LLC
Orogeny: Orogeny, Laramide Orogeny, Geology of the North Sea, Trans-Hudson Orogeny, Mountain Formation, Grenville Orogeny, Cale Books LLC

Orogeny: Orogeny, Laramide Orogeny, Geology of the North Sea, Trans-Hudson Orogeny, Mountain Formation, Grenville Orogeny, Cale

Books LLC

Published September 4th 2011
ISBN : 9781155571652
Paperback
152 pages
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 About the Book 

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 55. Chapters: Laramide orogeny, Geology of the Pyrenees, Geology of the North Sea, Great Lakes tectonic zone,MorePlease note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 55. Chapters: Laramide orogeny, Geology of the Pyrenees, Geology of the North Sea, Great Lakes tectonic zone, Algoman orogeny, Trans-Hudson orogeny, Grenville orogeny, Mountain formation, Musgrave Block, Petermann Orogeny, List of orogenies, Cadomian Orogeny, Taconic orogeny, Iapetus Suture, Colorado orogeny, Alleghenian orogeny, Fold and thrust belt, Acadian orogeny, Camerons Line, Sevier orogeny, Alice Springs Orogeny, Mediterranean Ridge, Antler orogeny, East Greenland Orogen, Kaikoura Orogeny, East African Orogeny, Rangitata Orogeny, Cimmerian Orogeny. Excerpt: The Pyrenees form part of the huge alpine orogenic system. This 430 kilometre long, roughly east-west striking, intracontinental mountain chain divides France, Spain, and Andorra. It has an extended, polycyclic geological evolution dating back to the Precambrian. The chains present configuration is due to the collision between the microcontinent Iberia and the southwestern promontory of the European Plate (i.e. Southern France). The two continents were approaching each other since the onset of the Upper Cretaceous (Albian/Cenomanian) about 100 million years ago and were consequently colliding during the Paleogene (Eocene/Oligocene) 55 to 25 million years ago. After its uplift, the chain experienced intense erosion and isostatic readjustments. A cross-section through the chain shows an asymmetric flower-like structure with steeper dips on the French side. The Pyrenees are not solely the result of compressional forces, but also show an important sinistral shearing. The Pyrenees sensu stricto stretch in a westnorthwest-eastsoutheast-direction (N 110) over 430 km from the Bay of Biscay in the west to the Golfe du Lion and the Golf de Roses in the east, their width across strike varying between 65 and 150 km. They are bounded in the north by the North Pyrenean Front (Fren...