Sevier orogeny

Sevier orogeny
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Name	Sevier orogeny
Location	North America, Western United States
Type	Orogeny

Sevier orogeny. The Sevier orogeny was a significant Mountain building event that occurred in the Western United States, particularly in the regions of Nevada, Utah, Arizona, and California, during the Late Cretaceous to Early Eocene periods, involving the Laramide orogeny and the Farallon Plate. This event was characterized by the collision of the Farallon Plate with the North American Plate, resulting in the formation of the Sevier fold belt and the Sevier Desert. The Sevier orogeny was also influenced by the Subduction of the Farallon Plate under the North American Plate, which led to the formation of Volcanic arcs such as the Sierra Nevada and the Cascade Range.

Introduction

The Sevier orogeny was a complex event that involved the interaction of multiple Tectonic plates, including the North American Plate, the Farallon Plate, and the Pacific Plate. This event was also influenced by the Breakup of Pangaea and the formation of the Atlantic Ocean, which led to the creation of new Oceanic crust and the Subduction of old crust. The Sevier orogeny was also associated with the formation of the Western Interior Seaway, a large Inland sea that covered much of North America during the Cretaceous period. The University of California, Berkeley, the United States Geological Survey, and the Geological Society of America have conducted extensive research on the Sevier orogeny, involving Geologists such as James Hutton, Charles Lyell, and John Wesley Powell.

Geologic Setting

The Sevier orogeny occurred in a region of complex Geology, involving the interaction of multiple Tectonic plates and the formation of various Geologic structures. The North American Plate was being Subducted under the Farallon Plate, resulting in the formation of a Volcanic arc and the creation of Mountain ranges such as the Sierra Nevada and the Cascade Range. The Sevier fold belt was also formed during this event, involving the Folding and Faulting of Sedimentary rocks and the creation of Thrust faults such as the Cheyenne Belt and the Absaroka Fault. The Geological Survey of Canada, the British Geological Survey, and the Australian Geological Survey Organisation have also studied the Sevier orogeny, in collaboration with Institutions such as the California Institute of Technology, the Massachusetts Institute of Technology, and the University of Oxford.

Tectonic Evolution

The tectonic evolution of the Sevier orogeny involved the interaction of multiple Tectonic plates and the formation of various Geologic structures. The Farallon Plate was being Subducted under the North American Plate, resulting in the formation of a Volcanic arc and the creation of Mountain ranges such as the Sierra Nevada and the Cascade Range. The Sevier fold belt was also formed during this event, involving the Folding and Faulting of Sedimentary rocks and the creation of Thrust faults such as the Cheyenne Belt and the Absaroka Fault. The Tectonic evolution of the Sevier orogeny was also influenced by the Breakup of Pangaea and the formation of the Atlantic Ocean, which led to the creation of new Oceanic crust and the Subduction of old crust, involving Geologists such as Alfred Wegener, Arthur Holmes, and Inge Lehmann.

Deformation and Metamorphism

The deformation and metamorphism associated with the Sevier orogeny involved the Folding and Faulting of Sedimentary rocks and the creation of Thrust faults such as the Cheyenne Belt and the Absaroka Fault. The Sevier fold belt was formed during this event, involving the Folding and Faulting of Sedimentary rocks and the creation of Thrust faults. The Metamorphism associated with the Sevier orogeny involved the formation of Metamorphic rocks such as Marble and Quartzite, resulting from the High-pressure and High-temperature conditions associated with the Subduction of the Farallon Plate under the North American Plate. The University of Cambridge, the University of Edinburgh, and the University of Melbourne have conducted research on the deformation and metamorphism associated with the Sevier orogeny, involving Geologists such as James Dwight Dana, Charles Barrois, and Eduard Suess.

Economic Geology

The Sevier orogeny has significant implications for Economic geology, particularly in the regions of Nevada, Utah, Arizona, and California. The Sevier fold belt is a significant source of Mineral deposits, including Copper, Gold, and Silver, which are found in Ore deposits such as the Bingham Canyon Mine and the Kennecott Copper Mine. The Sevier orogeny also has significant implications for Hydrocarbon exploration, particularly in the regions of the Western Interior Seaway, which was a large Inland sea that covered much of North America during the Cretaceous period. The United States Geological Survey, the Geological Survey of Canada, and the British Geological Survey have conducted extensive research on the economic geology of the Sevier orogeny, involving Geologists such as William Smith, Charles Lyell, and Roderick Murchison. Category:Geologic events