More than one hundred million years ago during the Nevadan orogeny, granite formed deep underground.
2.
The resulting orogeny ( mountain-building event ) is called the Nevadan orogeny by geologists.
3.
The first of several massive batholiths were emplaced in the northern American cordillera beginning in the mid-Jurassic, marking the Nevadan orogeny.
4.
The Nevadan Orogeny destroyed the western wedge of sedimentary rocks during Jurassic to middle Cretaceous time, thrusting them up into metamorphic fold belts.
5.
The Morrison Basin, which stretched from New Mexico in the south to Alberta and Saskatchewan in the north, was formed during the Nevadan orogeny, a precursor event to later orogenic episodes that created the Rocky Mountains started pushing up to the west.
6.
This granite is mostly found east of the crest and north of 37.2�N . In the Triassic and into the Jurassic, an island arc collided with the west coast of North America and raised a chain of volcanoes, in an event called the Nevadan orogeny.
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