Travertine Formation and Geology

Falls Ridge Preserve, located in Virginia, is a geologically rich area formed by tectonic activities. The Salem Fault, a major geological feature, contributed to the formation of travertine deposits. These deposits, briefly mined for lime, are a key attraction. The preserve offers insights into geological processes and features like caves and travertine falls, showcasing the region's dynamic history.

Where is Falls Ridge Preserve located?

• West of Blacksburg, Virginia

• East of Blacksburg, Virginia

• North of Blacksburg, Virginia

• South of Blacksburg, Virginia

Which geological region is Falls Ridge Preserve part of?

• Appalachian Plateau

• Piedmont

• Valley and Ridge

• Blue Ridge Mountains

What is the Salem fault known for?

• Being the oldest fault in Virginia

• Creating travertine deposits

• Being a normal fault

• Causing volcanic eruptions

During which orogeny was the Salem fault created?

• Grenville

• Acadian

• Alleghenian

• Taconic

What was the travertine at Falls Ridge briefly mined for?

• Gold

• Silver

• Lime

• Coal

How much travertine has accumulated in the Falls Ridge area?

• Over 15,000 metric tons

• Over 25,000 metric tons

• Over 35,000 metric tons

• Over 45,000 metric tons

How long did it take for the travertine falls to form?

• About 3,500 years

• About 1,500 years

• About 7,500 years

• About 5,500 years

What is the annual deposition rate of travertine at Falls Ridge?

• 1.2 mm per year

• 2.2 mm per year

• 3.2 mm per year

• 4.2 mm per year

What causes the porosity in the travertine?

• Erosion by wind

• Pressure from tectonic activity

• Decay of organic material

• Chemical reactions with water

What does the Falls Ridge area offer a window into?

• Historical mining techniques

• Geologic processes

• Agricultural practices

• Modern urban development