Anagram & Information om | Engelska ordet CRATON

Exempel på hur du använder CRATON i en mening

• Amalgamation (geology), the creation of a stable continent or craton by the union of two terranes; see Tectonic evolution of the Barberton greenstone belt.
• Interior Plains, a vast physiographic region that spreads across the Laurentian craton of North America.
• 8 billion years ago the Hearne-Rae, Superior, and Wyoming cratons were sutured together to form the North American craton, Laurentia, in an event called the Trans-Hudson Orogeny (THO).
• Along most of the edges of this craton are fragments of crustal material called terranes, which are accreted to the craton by tectonic actions over a long span of time.
• The cratons are from south to north, the Kalahari Craton, Congo Craton, Tanzania Craton and West African Craton.
• The word craton was first proposed by the Austrian geologist Leopold Kober in 1921 as , referring to stable continental platforms, and orogen as a term for mountain or orogenic belts.
• Columbia consisted of proto-cratons that made up the cores of the continents of Laurentia, Baltica, Ukrainian Shield, Amazonian Craton, Australia, and possibly Siberia, North China, and Kalaharia as well.
• It was made of Archaean cratons, including the Siberian Craton, with its Anabar/Aldan shields in Siberia, and the Slave, Wyoming, Superior, and North Atlantic cratons in North America.
• The Laurentian craton became a part of North America while Baltica became a part of Eurasia, and Avalonia was split between the two.
• 74 billion year old suture between the Wyoming craton and the Yavapai province that formed as North America was assembled, is exposed in the Medicine Bow Mountains.
• The CLGB is part of a much larger belt of Paleoproterozoic greenstones, a cover of metamorphosed volcanic and sedimentary rocks that cover the Archean basement, the latter which is representative of the Archaean Karelian craton.
• In the late 1960s Sloss had several students, notably Peter Vail, Robert Mitchum, and John Sangree, who completed dissertations studying the Pennsylvanian sedimentary rocks of the North American craton and became aware that global changes in sea level could have been responsible for the numerous widespread unconformities in those rocks.

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