Mountain Formation Quizpart 2 D

What causes the elevation of mid-ocean ridge mountains?

• Formation of mid-continent domes and basins

• Thickening and cooling lithosphere

• Erosion and collapse

• Rising asthenosphere heats lithosphere

Why are mountains steep and jagged?

• Due to erosion

• Due to uplift

• Due to rock characteristics

• Due to orogenic collapse

What controls erosion in mountains?

• Lithospheric heating

• Asthenosphere temperature

• Mountain height

• Rock strength

What is the upper limit to mountain heights?

• Formation of mid-continent domes and basins

• Erosion and collapse

• Rising asthenosphere heats lithosphere

• Weight of high mountains overwhelms rock strength

What is the process of mountains collapsing downward like soft cheese?

• Craton formation

• Eperiogeny

• Unroofing

• Orogenic collapse

What are the two provinces of Cratons?

• Craton formation and Orogenic collapse

• Shields and Cratonic Platforms

• Shields and Eperiogeny

• Cratonic Platforms and Unroofing

What is the meaning of Eperiogeny?

• Crust that has not been affected by orogeny for at least about the last 1 billion years

• Formation of mid-continent domes and basins

• Rising asthenosphere heats lithosphere

• Erosion and collapse

What type of rocks are found in Shields?

• Phanerozoic strata

• Precambrian metamorphic and igneous rocks

• Layers of Phanerozoic strata

• Deep crustal rocks

What is the formation of mid-continent domes and basins called?

• Erosion and collapse

• Unroofing

• Eperiogeny

• Craton formation