Crustal Cross Sections from the Western North American Cordillera and Elsewhere: Implications for Tectonic and Petrologic Processes

Mid-Cretaceous–Recent crustal evolution in the central Coast orogen, British Columbia and southeastern Alaska
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Published:January 01, 2009
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CiteCitation
Maria Luisa Crawford, Keith A. Klepeis, George E. Gehrels, Jennifer Lindline, 2009. "Mid-Cretaceous–Recent crustal evolution in the central Coast orogen, British Columbia and southeastern Alaska", Crustal Cross Sections from the Western North American Cordillera and Elsewhere: Implications for Tectonic and Petrologic Processes, Robert B. Miller, Arthur W. Snoke
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The Coast orogen of western coastal British Columbia and southeastern Alaska is one of the largest batholithic belts in the world. This paper addresses the structure and composition of the crust in the central part of this orogen, as well as the history of its development since the mid-Cretaceous. The core of the orogen consists of two belts of metamorphic and plutonic rocks: the western metamorphic and thick-skinned thrust belt comprising 105–90-Ma plutons and their metamorphic country rocks, and the Coast Plutonic Complex on the east, with large volumes of mainly Paleogene magmatic rocks and their high-temperature gneissic host rocks....
- absolute age
- accretion
- Alaska
- British Columbia
- Canada
- Cenozoic
- Coast Belt
- Coast plutonic complex
- Cretaceous
- dates
- denudation
- displacements
- exhumation
- Holocene
- igneous rocks
- intrusions
- lithosphere
- Mesozoic
- metamorphic rocks
- metamorphism
- Middle Cretaceous
- North America
- oceanic lithosphere
- Paleogene
- plate convergence
- plate tectonics
- plutonic rocks
- plutons
- Quaternary
- shear zones
- Southeastern Alaska
- subduction
- tectonics
- Tertiary
- thick-skinned tectonics
- U/Pb
- United States
- volcanism
- Western Canada
- Coast shear zone