Rocks
This type of rock makes up most of Joshua Tree’s landscape.
What is granite?
This park features salt flats formed from evaporated mineral-rich water.
What is Death Valley National Park?
This process involves bending rock layers without breaking them.
What is folding?
Glaciers did this to mountains, creating sharp peaks and valleys.
What is erosion? or carving
Unlike the jagged Tetons, these mountains are rounded due to heavy erosion.
What are the Great Smoky Mountains?
These rocks form from heat and pressure and are common in the Great Smoky Mountains.
What are metamorphic rocks?
This park is known for giant granite cliffs and deep glacial valleys.
What are Sequoia & Kings Canyon National Parks?
This process breaks rock and shifts it along fractures.
What is faulting?
This process breaks granite into rounded boulders in Joshua Tree.
What is weathering?
Both Grand Teton and this park have rocks over a billion years old.
What is Shenandoah National Park?
This sedimentary rock forms caves like Lehman Caves in Great Basin.
What is limestone?
This park’s rocks were uplifted and tilted due to basin-and-range geology.
What is Great Basin National Park?
The stage where sediments or volcanic material build up.
What is the accumulation stage?
This term describes changes in Earth’s crust like folding and faulting.
What is crustal deformation?
Joshua Tree and Sequoia both prominently feature this rock type.
What is granite?
Redwood National Park is mostly made of these rocks formed from ocean sediments.
What are sedimentary rocks?
This park formed from folded sedimentary rocks during the Ouachita orogeny.
What is Hot Springs National Park?
The stage where mountains form through folding and faulting.
What is the orogenic stage?
This process caused Death Valley to drop while mountains rose.
What is faulting?
Unlike Death Valley’s faulted basin, this park shows folded sedimentary rocks.
What is Hot Springs National Park?
Grand Teton contains these two rock types that are over a billion years old.
What are igneous and metamorphic rocks?
This park’s mountains are worn down and formed from ancient continental collisions.
What is Shenandoah National Park?
This final stage includes uplift, erosion, and isostatic rebound.
What is crustal extension and uplift?
This process formed the coastal hills in Redwood National Park.
What is tectonic uplift?
Both Great Basin and Death Valley show this type of crustal stretching.
What is crustal extension?